NSR0320MW2T1中文资料
安森美MBRS230L NRVBS230L肖特基功率整流器用户手册说明书
Surface MountSchottky Power RectifierMBRS230L, NRVBS230L, NRVBS230LNT3GSMB Power Surface Mount PackageThis device employs the Schottky Barrier principle in a metal−to−silicon power rectifier. Features epitaxial construction with oxide passivation and metal overlay contact. Ideally suited for low voltage, high frequency switching power supplies; free wheeling diodes and polarity protection diodes.Features•Compact Package with J−Bend Leads Ideal for Automated Handling •Highly Stable Oxide Passivated Junction•Guardring for Over−V oltage Protection•Low Forward V oltage Drop•NRVBS Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable*•These Devices are Pb−Free and are RoHS CompliantMechanical Characteristics•Case: Molded Epoxy•Epoxy Meets UL 94, V−*********.•Weight: 95 mg (approximately)•Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable•Maximum Temperature of 260°C/10 Seconds for Soldering •Available in 12 mm Tape, 2500 Units per 13″ Reel,Add “T3” Suffix to Part Number•Cathode Polarity BandSMBCASE 403ASCHOTTKY BARRIERRECTIFIER2.0 AMPERES30 VOLTSMARKING DIAGRAMDevice Package Shipping†ORDERING INFORMATIONMBRS230LT3G SMB(Pb−Free)2500 /Tape & Reel†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our T ape and Reel Packaging Specifications Brochure, BRD8011/D.ALYW2BL3GGA= Assembly Location**L= Wafer LotY= YearW= Work WeekG= Pb−Free PackageNRVBS230LT3G*SMB(Pb−Free)2500 /Tape & Reel (Note: Microdot may be in either location)**The Assembly Location code (A) is front side optional. In cases where the Assembly Location is stamped in the package bottom (molding ejecter pin), the front side assembly code may be blank.NRVBS230LNT3G*SMB(Pb−Free)2500 /Tape & ReelMAXIMUM RATINGSRatingSymbol Value Unit Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking VoltageV RRM V RWM V R 30VAverage Rectified Forward Current (At Rated V R , T C = 110°C)I O 2.0A Peak Repetitive Forward Current(At Rated V R , Square Wave, 20 kHz, T C = 105°C)I FRM 4.0A Non −Repetitive Peak Surge Current(Surge Applied at Rated Load Conditions, Halfwave, Single Phase, 60 Hz)I FSM 40A Storage/Operating Case Temperature T stg , T C −55 to +175°C Operating Junction Temperature T J −55 to +125°C Voltage Rate of Change (Rated V R , T J = 25°C)dv/dt10,000V/m sStresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected.THERMAL CHARACTERISTICSCharacteristicSymbol Value Unit Thermal Resistance,Junction −to −Lead (Note 1)Thermal Resistance,Junction −to −Ambient (Note 1)R q JL R q JA18.6135°C/WELECTRICAL CHARACTERISTICSMaximum Instantaneous Forward Voltage (Note 2)(I F = 2.0 A)see Figure 2(I F = 4.0 A)V FT J = 25°C T J = 125°CV0.500.600.450.63Maximum Instantaneous Reverse Current (Note 2)(V R = 30 V)see Figure 4(V R = 15 V)I RT J = 25°C T J = 125°CmA10.317535Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions.1.Minimum pad size (0.108″ X 0.085″) for each lead on FR4 board.2.Pulse Test: Pulse Width ≤ 250 m s, Duty Cycle ≤2.0%.Figure 1. Typical Forward Voltage Figure 2. Maximum Forward VoltagevF , INSTANTANEOUS FORWARD VOLTAGE (VOLTS)1010.01V F , MAXIMUM INSTANTANEOUS FORWARDVOLTAGE (VOLTS)0.1i F , I N S T A N T A N E O U S F O R W A R D C U R R E N T (A M P S )I F , I N S T A N T A N E O U S F O R W A R D C U R R E N T (A M P S )Figure 3. Typical Reverse CurrentFigure 4. Maximum Reverse CurrentV R , REVERSE VOLTAGE (VOLTS)100E −10E −V R , REVERSE VOLTAGE (VOLTS)100E −10E −1E −100E −10E −I R , R E V E R S E C U R R E N T (A M P S )1E −100E −1E −10E −I R)Figure 5. Current Derating Per Leg Figure 6. Forward Power Dissipation Per Leg408020T C , CASE TEMPERATURE (°C)2.01.0I O , AVERAGE FORWARD CURRENT (AMPS)0.52.01.81.21.00.40601401201.01.50.63.03.51.50.52.5 3.52.53.00.20.81.4100I O , A V E R A G E F O R W A R D C U R R E N T (A M P S )1.6P F O , A V E R A G E P O W E R D I S S I P A T I O N (W A T T S )Figure 7. Thermal Responset, TIME (s)r (t ), T R A N S I E N T T H E R M A L R E S I S T A N C E (N O R M A L I Z E D )SMBCASE 403A−03ISSUE JDATE 19 JUL 2012SCALE 1:1cNOTES:1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.2.CONTROLLING DIMENSION: INCH.3.DIMENSION b SHALL BE MEASURED WITHIN DIMENSION L1.XXXXX= Specific Device CodeA= Assembly LocationY= YearWW= Work WeekG= Pb−Free Package(Note: Microdot may be in either location)*This information is generic. Please refer todevice data sheet for actual part marking.Pb−Free indicator, “G” or microdot “ G”,may or may not be present.AYWWXXXXX GGGENERICMARKING DIAGRAM*ǒmminchesǓSCALE 8:1*For additional information on our Pb−Free strategy and solderingdetails, please download the ON Semiconductor Soldering andMounting Techniques Reference Manual, SOLDERRM/D.SOLDERING FOOTPRINT*DIMAMIN NOM MAX MINMILLIMETERS1.952.30 2.470.077INCHESA10.050.100.200.002b 1.96 2.03 2.200.077c0.150.230.310.006D 3.30 3.56 3.950.130E 4.06 4.32 4.600.160L0.76 1.02 1.600.0300.0910.0970.0040.0080.0800.0870.0090.0120.1400.1560.1700.1810.0400.063NOM MAX5.21 5.44 5.600.2050.2140.220H E0.51 REF0.020 REFL1SCALE 1:1AYWWXXXXX GGPolarity Band Non−Polarity Band Polarity Band Non−Polarity BandMECHANICAL CASE OUTLINEPACKAGE DIMENSIONSON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.ON Semiconductor reserves the right to make changes without further notice to any products herein. ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. ON Semiconductor does not convey any license under its patent rights nor thePUBLICATION ORDERING INFORMATIONTECHNICAL SUPPORTNorth American Technical Support:Voice Mail: 1 800−282−9855 Toll Free USA/Canada Phone: 011 421 33 790 2910LITERATURE FULFILLMENT :Email Requests to:*******************onsemi Website: Europe, Middle East and Africa Technical Support:Phone: 00421 33 790 2910For additional information, please contact your local Sales Representative。
N32G032系列硬件设计指南说明书
设计指南N32G032系列硬件设计指南简介本指南是为N32G032系列MCU系统设计者提供的，以便对N32G032系列MCU硬件实现的特性有一个总体认识，如供电、时钟管理、复位电路、调试接口等。
该文档描述了应用N32G032系列MCU开发所需要的最小硬件资源及其参考设计图。
国民技术版权所有目录1.N32G032系列硬件设计 (1)1.1电源供电简介 (1)1.2供电方案 (1)1.3外部引脚复位电路 (2)1.4外部时钟电路 (2)1.5启动引脚连接 (2)1.6独立ADC转换器 (3)1.7调试接口 (3)1.8整体设计建议 (3)1.9PCB LAYOUT参考 (5)2.历史版本 (6)3.声明 (7)1.N32G032系列硬件设计1.1电源供电简介主控制器供电方案：电路由稳定的电源VDD供电。
参考图1-1电源供应一览，VDD引脚必须连接到带外部稳定电容(N个100nF电容(N按封装类型适配)和一个4.7μF电容)的VDD电源。
PCB LAYOUT设计时，VDD_1就近放两颗电容，分别为4.7uF和0.1uF，其余VDD管脚就近放0.1uF电容。
1.3外部引脚复位电路当图1-2 系统复位图1.5启动引脚连接下图显示了N32G032系列芯片选择启动存储器时所需的外部连接。
关于启动模式请参考数据手册相关章节。
图1-3 启动模式实现实例注：图中电阻值只作为典型参考值给出。
1.6独立ADC转换器为提高转换精度，ADC有一个独立的电源供应，它可以被单独滤波和屏蔽以不受PCB噪音的干扰，一个独立的VDDA引脚给ADC供电，VSSA引脚提供一个隔离的接地输入。
关于ADC电路设计，请注意如下几点：1）差分电路占两个通道，外部走线要尽量等距；2）若对ADC采样精度要求比较高，建议VDDA使用单独的LDO供电，外加并联电容进行滤波处理；3）若对ADC的采样速率要求较高，外部走线距离尽量短，降低外部阻抗，且需要做对地隔离；4）ADC的输入通道周边尽量远离一些快速的通讯接口；5）注意慢速通道和快速通道的最高支持速率；6）在ADC转换期间，不要软件切换ADC通道。
M-System R3-NC3远程I O通信模块规格书说明书
远程 I/O R3 系列通信模块机型: R3－NC3－①② ①、②在下列代码中选择。
（例如: R3－NC3－N/CE/W/Q）・特殊规格（例如: /C01/SET）①供电电源N: 无供电电源◆交流电源K3: 100～120V AC (允许电压范围 85～132V AC、47～66Hz)＊(不符合CE)L3: 200～240V AC (允许电压范围 170～264V AC、47～66Hz)＊(不符合CE)◆直流电源R：24V DC (允许电压范围 24V±10%、纹波系数 10%p-p以下)*＊、与电源模块以及备有电源的通信模块并用时不能选择。
②附加代码 (可指定多项)◆适用标准未填写: 不符合CE/CE: 符合CE◆三菱产双重PLC系统未填写: 不支持该系统/W: 支持该系统◆特殊规格未填写: 无特殊规格/Q: 特殊规格（从特殊规格之项另请选择）/C01: 硅涂层/C02: 聚氨酯涂层/C03: 橡胶涂层◆出厂时的设定/SET: 按照订购表格 (No: ESU-8422) 设定・CC-Link: 连接器型欧式端子盘 (适用电缆线: 0.2～2.5mm2、露线长度为7mm)・内部通信总线: 连接到底座 (机型: R3－BS□) 上・内部电源: 由底座 (机型: R3－BS□) 提供・供电电源、RUN接点输出: M3螺丝2块端子盘连接 (紧固扭矩为0.5N·m)压接端子: 请参照「适用压接端子」图(不能使用带绝缘套的压接端子)・适用电缆线: 0.75～1.25mm2端子螺丝材质: 铁表面镀镍隔离: CC-Link－内部通信总线・内部电源－供电电源－RUN接点输出－FG间主/从切换设定: 用侧面的DIP开关设定数据分配设定: 用侧面的DIP开关设定RUN显示灯: 红/绿2色LED通信正常时亮绿色灯；接收数据时亮红色灯(用DIP开关进行切换)ERR显示灯: 红/绿2色LED通信异常时绿色灯亮灯/闪烁 (电缆断线时熄灯，异常设定时闪烁)；发送数据时，亮红色灯(用DIP开关进行切换)■RUN接点输出RUN接点: RUN显示灯亮绿色灯时ON (CC-Link通信正常时ON)额定负载: 250V AC 0.5A (cos ø ＝ 1) 30V DC 0.5A (电阻负载) (满足EU指令时，额定负载小于50V AC。
MURS360B超快速电源二极管数据手册说明书
MURS360BUltrafast power diodeRev.02 - 1 August 2018Product data sheet1. General descriptionUltrafast power diode in a SMB surface-mountable plastic package.2. Features and benefits• Low on-state loss• Low leakage current• Low thermal resistance• Surface-mountable package• Reduces switching losses in associated MOSFET or IGBT3. Applications• Buck and Boost converter• Discontinuous Current Mode (DCM) Power Factor Correction (PFC)• Inverter freewheeling and protection diode4. Quick reference data5. Pinning information6. Ordering information7. Marking8. Limiting values Table 5. Limiting values9. Thermal characteristics10. Characteristics11. Package outline12. Legal informationData sheet status[1lease consult the most recently issued document before initiating or completing a design.[2]The term 'short data sheet' is explained in section "Definitions".[3]The product status of device(s) described in this document may havechanged since this document was published and may differ in case ofmultiple devices. The latest product status information is available onthe Internet at URL .DefinitionsDraft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. WeEn Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information.Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contai n detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local WeE n Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.Product specification — The information and data provided in a Product data sheet shall define the specification of the product as agreed between WeEn Semiconductors and its customer, unless WeEn Semiconductors and customer have explicitly agreed otherwise in writing. In no event however, shall an agreement be valid in which the WeEn Semiconductors productis deemed to offer functions and qualities beyond those described in the Product data sheet.DisclaimersLimited warranty and liability — Information in this document is believedto be accurate and reliable. However, WeEn Semiconductors does notgive any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. WeEn Semiconductors takes no responsibility for the content in this document if provided by an information source outside of WeEn Semiconductors.In no event shall WeEn Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation -lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory.Notwithstanding any damages that customer might incur for any reason whatsoever, WeEn Semiconductors’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Terms and conditions of commercial sale of WeEn Semiconductors.Right to make changes — WeEn Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof.Suitability for use — WeEn Semiconductors products are not designed, authorized or warranted to be suitable for use in life support, life-criticalor safety-critical systems or equipment, nor in applications where failureor malfunction of an WeEn Semiconductors product can reasonablybe expected to result in personal injury, death or severe property o r environmental damage. WeEn Semiconductors and its suppliers accept no liability for inclusion and/or use of WeEn Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at th e customer’s own risk.Quick reference data — The Quick reference data is an extract of th e product data given in the Limiting values and Characteristics sections of this document, and as such is not complete, exhaustive or legally binding. Applications — Applications that are described herein for any of these products are for illustrative purposes only. WeEn Semiconductors makesno representation or warranty that such applications will be suitable for the specified use without further testing or modification.Customers are responsible for the design and operation of their applications and products using WeEn Semiconductors products, and WeEn Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the WeEn Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products.WeEn Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or defaultin the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using WeEn Semiconductors products in order to avoid a default of the applicationsand the products or of the application or use by customer’s third party customer(s). WeEn does not accept any liability in this respect.Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above thosegiven in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device.No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights.Export control — This document as well as the item(s) described herein may be subject to export control regulations. Export might require a prior authorization from competent authorities.Non-automotive qualified products — Unless this data sheet expressl y states that this specific WeEn Semiconductors product is automotive qualified, the product is not suitable for automotive use. It is neither qualifie d nor tested in accordance with automotive testing or application requirements. WeEn Semiconductors accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications.In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without WeEn Semiconductors’ warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond WeEn Semiconductors’ specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies WeEn Semiconductors forany liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond WeEn Semiconductors’ standard warranty and WeEn Semiconductors’ product specifications.]PTranslations — A non-English (translated) version of a document is for reference only. The English version shall prevail in case of any discrepancy between the translated and English versions.TrademarksNotice: All referenced brands, product names, service names and trademarks are the property of their respective owners.13. Contents1. General description (1)2. Features and benefits (1)3. Applications (1)4. Quick reference data (1)5. Pinning information (2)6. Ordering information (2)7. Marking (2)8. Limiting values (3)9. Thermal characteristics (5)10. Characteristics (6)11. Package outline (7)12. Legal information (8)13. Contents (10)© WeEn Semiconductors Co., Ltd. 2018. All rights reservedFor more information, please visit: Forsalesofficeaddresses,pleasesendanemailto:**************************** Date of release: 1 August 2018。
ELM320资料
ELM320OBD (PWM) to RS232 InterpreterSince the 1996 model year, North American automobiles have been required to provide an OBD,or On Board Diagnostics, port for the connection of test equipment. Data is transferred serially between the vehicle and the external equipment using these connections, in a manner specified by the Society of Automotive Engineers (SAE) standards. In addition to operating at different voltage levels, these ports also use a data format that is not compatible with the standard used for personal computers.The ELM320 is an 8 pin integrated circuit that is able to change the data rate and reformat the OBD signals into easily recognized ASCII characters. This allows virtually any personal computer to communicate with an OBD equipped vehicle using only a standard serial port and a terminal program.By also enhancing it with an interface program,hobbyists can create their own custom ‘scan tool’.This integrated circuit was designed to provide a cost-effective way for experimenters to work with an OBD system, so many features such as RS232handshaking, variable baud rates, etc., have not been implemented. In addition, this device is only able to communicate using the 41.6KHz J1850 PWM protocol that is commonly used in Ford Motor Company vehicles.•Low power CMOS design•High current drive outputs - up to 25 mA •Crystal controlled for accuracy •Configurable with AT commands •Standard ASCII character output •High speed RS232 communications •41.6KHz J1850 PWM Protocol•Diagnostic Trouble Code Readers •Automotive Scan ToolsDescriptionApplicationsBlock DiagramFeaturesAll rights reserved. Copyright 2001 - 2002 Elm Electronics.Every effort is made to verify the accuracy of information provided in this document, but no representation or warranty can be given and no liability assumed by Elm Electronics with respect to the accuracy and/or use of any products or informationdescribed in this document. Elm Electronics will not be responsible for any patent infringements arising from the use of these products or information, and does not authorize or warrant the use of any Elm Electronics product in life support devices and/or systems. Elm Electronics reserves the right to make changes to the device(s) described in this document in order to improve reliability, function, or design.V DD (pin 1)This pin is the positive supply pin, and should always be the most positive point in the circuit.Internal circuitry connected to this pin is used to provide power on reset of the microprocessor, so an external reset signal is not required. Refer to the Electrical Characteristics section for further information.XT1 (pin 2) and XT2 (pin 3)A 3.579545MHz NTSC television colourburst crystal is connected between these two pins.Crystal loading capacitors (typically 27pF) will also normally be connected between each of the pins and the circuit common (Vss).OBDIn (pin 4)The OBD data is input to this pin, with a high logic level representing the active state (and a low, the passive). No Schmitt trigger input is provided, so the OBD signal should be buffered to minimize transition times for the internal CMOS circuitry. The external level shifting circuitry is usually sufficient to accomplish this –see the Example Applications section for a typical circuit.Rx (pin5)The computer’s RS232 transmit signal can be directly connected to this pin from the RS232line as long as a current limiting resistor (typically about 47K Ω) is installed in series.(Internal protection diodes will pass the input currents safely to the supply connections,protecting the ELM320.) Internal signal inversion and Schmitt trigger waveshaping provide the necessary signal conditioning.Tx (pin 6)The RS232 data output pin. The signal level is compatible with most interface ICs, and there is sufficient current drive to allow interfacing using only a single PNP transistor, if desired.OBDOut (pin 7)This is the active low output signal which is used to drive the OBD bus to its active state. Since the J1850 PWM standard requires a differential bus signal, the user must create the complement of this signal to drive the other bus line. See the Example Application section for more details.V SS (pin 8)Circuit common is connected to this pin. This is the most negative point in the circuit.Note:Stresses beyond those listed here will likely damage the device. These values are given as a design guideline only. The ability to operate to these levels is neither inferred nor recommended.All values are for operation at 25°C and a 5V supply, unless otherwise noted. For further information, refer to note 1 below.CharacteristicMinimumTypicalMaximum ConditionsUnitsSupply voltage, V DD 4.5 5.05.5V V DD rate of rise0.05V/msAverage supply current, I DD 1.02.4mA Notes:1.This integrated circuit is produced with a Microchip Technology Inc.’s PIC12C5XX as the core embedded microcontroller. For further device specifications, and possibly clarification of those given, please refer to the appropriate Microchip documentation (available at /).2.This spec must be met in order to ensure that a correct power on reset occurs. It is quite easily achieved using most common types of supplies, but may be violated if one uses a slowly varying supply voltage, as may be obtained through direct connection to solar cells, or some charge pump circuits.3.Device only. Does not include any load currents.4.This specification represents the current flowing through the protection diodes when applying large voltages to the Rx input (pin 5) through a current limiting resistance. Currents quoted are the maximum that should be allowed to flow continuously.5.Nominal data transfer rate when a 3.58 MHz crystal is used as the frequency reference. Data is transferred to and from the ELM320 with 8 data bits, no parity, and 1 stop bit (8 N 1).Input low voltage V SS 0.15 V DDV Input high voltage V DD V 0.85 V DDOutput low voltage 0.6V Output high voltage VV DD - 0.7Current (sink) = 8.7mA Current (source) = 5.4mA see note 2see note 3Rx pin input current mA see note 4-0.5RS232 baud ratebaudsee note 59600+0.5The ELM320 accepts internal configuration commands in much the same manner that modems do. Any message received, at any time, that begins with the character ‘A’ followed by the character ‘T’ will be considered an internal configuration or ‘AT’command. These are executed upon receipt of the terminating carriage return character, and successful completion of the command is acknowledged by the printing of the characters ‘OK’.The ELM320 relies on a standard RS232 type serial connection to communicate with the user. The data rate is fixed at 9600 baud, with 8 data bits, no parity bit, 1 stop bit, and no handshaking (often referred to as 9600 8N1). All responses from the IC are terminated with only a single carriage return character, and no line feed character. Some users may wish to improve readability by configuring their software to insert linefeed characters at the end of each line.Properly connected and powered, the ELM320 will initially display the message:ELM320 v1.1>In addition to identifying the version of the IC,receipt of this string is a convenient way to be sure that the computer connections and the settings are correct. However, at this point no communications have taken place with the vehicle, so the state of that connection is still unknown.The ‘>’ character displayed above is the ELM320’s prompt character. It indicates that the device is in its idle state, ready to receive characters on the RS232port. Characters sent from the computer can either be intended for the ELM320’s internal use, or for reformatting and passing on to the vehicle’s OBD bus.Commands for the ELM320 are distinguished from those to the vehicle by always beginning with the characters ‘AT’ (as is common with modems), while commands for the OBD bus must contain only the ASCII characters for hexadecimal digits (0 to 9 and A to F). This allows the ELM320 to quickly determine where the received characters are to be directed.Whether an ‘AT’ type internal command or a hex string for the OBD bus, all messages to the ELM320must be terminated with a carriage return character (hex ‘0D’) before it will be acted upon. The one exception is when an incomplete string is sent and no carriage return appears. In this case, an internal timer will automatically abort the incomplete message after about 10 seconds, and the ELM320 will print a single question mark to show that the input was not understood (and was not acted upon).Messages that are misunderstood by the ELM320(syntax errors) will always be signalled by a single question mark (‘?’). These include incomplete messages, invalid AT commands, or invalid hexadecimal digit strings. It is not an indication of whether or not the message was understood by the vehicle. (The ELM320 is a protocol interpreter that makes no attempt to assess OBD messages for validity - it only ensures that an even number of hex digits were received, combined into bytes, and sent out the OBD port, so it cannot determine if the message sent to the vehicle is in error.)Incomplete or misunderstood messages can also occur if the controlling computer attempts to write to the ELM320 before it is ready to accept the next command (as there are no handshaking signals to control the data flow). To avoid a data overrun, users should always wait for the prompt character (‘>’)before issuing the next command.Finally, a few convenience items to note. The ELM320 is not case-sensitive, so ‘ATZ’ is equivalent to ‘atz’, and to ‘AtZ’. The device ignores space characters as well as control characters (tab, linefeed, etc.) in the input, so they can be inserted anywhere to improve readability and, finally, issuing only a single carriage return character will repeat the last command (making it easier to request updates on dynamic data such as engine rpm).Communications on the OBD bus can generally begin without requiring the issuance of any AT commands, as the factory default settings should be appropriate for most applications. Occasionally the user may wish to customize settings, such as turning the character echo off, etc. In these cases, AT commands must be issued.The following is a summary of the AT commands that are recognized by the current version of theIf the bytes received on the RS232 bus do not begin with the letters A and T, they are assumed to be commands for the vehicle’s OBD bus. The bytes will be tested to ensure that they are valid pairs of hexadecimal digits and, if they are, will be combined into bytes for transmitting. Recall that no checks are made as to the validity of the OBD command – data is simply retransmitted as received.OBD commands are actually sent to the vehicle embedded in a data message. The standards require that every message begin with three header bytes and end with a checksum byte, which the ELM320 adds automatically for the user (the header bytes never change in value, so are stored internally). To view the extra bytes that are received with the vehicle’s messages, issue an ATH1 internal command.Most OBD commands to the vehicle are one or two bytes in length, but some can be three or more bytes long. As the ELM320 is considered an experimenter’s circuit, it will only accept a maximum of three command bytes (or six hexadecimal digits) per message. Attempts to send more will result in a syntax error, with the entire command being ignored and a single question mark being printed.The use of hexadecimal digits for all of the data exchange was chosen as it is the most common data format used in the relevant SAE standards. It is consistent with mode request listings and is the most frequently used format for displaying results. With a little practice, it should not be very difficult to deal in hex numbers, but some people may want to obtain a conversion table or keep a calculator nearby. All users will be required to manipulate the results in some way,though (combine bytes and divide by 4 to obtain rpm, divide by 2 to obtain degrees of advance, etc.), and may find a software front-end helpful.As an example of sending a command to the vehicle, assume that A6 (or decimal 166) is the command that is required to be sent. In this case, the user would type the letter A, then the number 6, then would press the return key. These three characters would be sent to the ELM320 on the RS232 bus. The ELM320 would store the characters as they are received, and when the third character (the carriage return) is received, begin to assess the other two. It would see that they are both valid hex digits, and would convert them to a one byte value (decimal value is 166). Four header bytes would be added, and a total of five bytes would be sent to the vehicle. Note that the carriage return character is only a signal to the ELM320, and is not sent to the vehicle.After sending a command, the ELM320 listens on the OBD bus for any responses that are directed to it. Each received byte is converted to the equivalent hexadecimal pair of ASCII characters and transmitted on the RS232 port for the user. Rather than send control characters which are unprintable on most terminals, the digits are sent as numbers and letters (eg. the hex digit ‘A’ is transmitted as decimal value 65, and not 10).If there was no response from the vehicle, due to no data being available, or because the command is not supported, a ‘NO DATA’ message will be sent. See the error messages section for a description of this message and others.ELM320. Note that they are not case-sensitive, and that the character ‘0’ is the number ‘zero’:ATE0 and ATE1These commands control whether characters received on the RS232 port are retransmitted (or echoed) back to the host computer. To reduce traffic on the RS232 bus, users may wish to turn echoing off by issuing ATE0. Echo is initially on at powerup (default) and can be turned on at any time by issuing ATE1.ATH0 and ATH1These commands control whether or not the headerinformation is shown in the responses. All OBD messages have an initial (header) string of three bytes and a trailing check digit (CRC character) that is normally not displayed by the ELM320. To see this extra information, users should turn headers on by issuing ATH1. The default is H0 (headers off).ATZThis combination causes the chip to perform a complete reset as if power were cycled off and then on again. All settings are returned to their default values, and the chip will be put in the idle state, waiting for characters on the RS232 bus.The ELM320 cannot be directly connected to a vehicle as it is, but needs support circuitry as shown in the Example Applications section. Once incorporated into such a circuit, one need only use a terminal program to send bytes to, and receive them from the vehicle via the ELM320.SAE standards specify that command bytes sent to the vehicle must adhere to a set format. The first byte (known as the ‘mode’) always describes the type of data being requested, while the second, third, etc. bytes specify the actual information required (given by a ‘parameter identification’ or PID number). The modes and PIDs are described in detail in the SAE documents J1979 and J2190, and may also be expanded on by the vehicle manufacturers.Normally, one is only concerned with the nine diagnostic test modes described in J1979 (although there is provision for more). Note that it is not a requirement for all of them to be supported. These are the nine modes:01: show current data02: show freeze frame data03: show diagnostic trouble codes04: clear trouble codes and stored values05: test results, oxygen sensors06: test results, non-continuously monitored07: test results, continuously monitored08: special control mode09: request vehicle informationWithin each mode, PID 00 is normally reserved to show which PIDs are supported by that mode. Mode 01, PID 00 must be supported by all vehicles, and can be accessed as follows…Ensure that the ELM320 is properly connected to your vehicle, and powered. Most vehicles will not respond without the ignition key in the ON position, so turn the ignition on, but do not start the vehicle. At the prompt, issue the mode 01 PID 00 command:>01 00A typical response could be as follows:41 00 BE 1F B8 10The 41 00 signifies a response (4) from a mode 1 request from PID 00 (a mode 2, PID 00 request is answered with a 42 00, etc.). The next four bytes (BE, 1F, B8, and 10) represent the requested data, in this case a bit pattern showing which of PIDs 1 through 32 are supported by this mode (1=supported, 0=not).Although this information is not very useful for the casual user, it does serve to show that you are communicating with the vehicle.Another example requests the current engine coolant temperature (ECT). This is PID 05 in mode 01, and is requested as follows:>01 05The response will be of the form:41 05 7BThis shows a mode 1 response (41) from PID 05, with value 7B. Converting the hexidecimal 7B to decimal, one gets 7 x 16 + 11 = 123. This represents the current temperature in degrees Celsius, with the zero value offset to allow operation at subzero temperatures. To convert to the actual coolant temperature, simply subtract 40 from the value. In this case, then, the ECT is 123 - 40 = 83 deg C.A final example shows a request for the OBD requirements to which this vehicle was designed. This is PID 1C of mode 01, so at the prompt, type:>01 1CA typical response would be:41 1C 01The returned value (01) shows that this vehicle conforms to OBDII (California ARB) standards. The presently defined responses are :01: OBDII (California ARB)02: OBD (Federal EPA)03: OBD and OBDII04: OBD I05: not intended to meet any OBD requirements 06: EOBD (Europe)Some modes may provide multi-line responses (09, if supported, can display the vehicle’s serial number). The ELM320 will attempt to display all responses in these cases, but only if it is allowed sufficient time to process each. There may be occasions when the vehicle responds too quickly to allow time for reprocessing, and lines could be lost.Hopefully this has shown how typical requests proceed. It has not been meant to be a definitive source on modes and PIDs – this information can be obtained from the SAE (/), from the manufacturer of your vehicle, ISO (/), or from various other sources on the web.Likely the most common use that the ELM320 will be put to is in obtaining the current Diagnostic Trouble Codes or DTCs. Minimally, this requires that a mode 03 request be made, but first one should determine how many trouble codes are presently stored. This is done with a mode 01 PID 01 request as follows:>01 01To which a typical response might be:41 01 81 07 65 04The 41 01 signifies a response to our request, and the first data byte (81) is the result that we are looking for. Clearly there would not be 81(hex) or 129(decimal) trouble codes if the vehicle is operational. In fact, this byte does double duty, with the most significant bit being used to indicate that the malfunction indicator lamp (MIL, or ‘Check Engine’) has been turned on by one of this module’s codes (if there are more than one), while the other 7 bits provide the actual number of stored codes. To determine the number of stored codes then, one needs to subtract 128 (or 80 hex) from the number if it is greater than 128, and otherwise simply read the number of stored codes directly.The above response then indicates that there is one stored code, and it was the one that set the Check Engine Lamp or MIL on. The remaining bytes in the response provide information on the types of tests supported by that particular module (see SAE document J1979 for further information).In this instance, there was only one line to the response, but if there were codes stored in other modules, they each could have provided a line of response. To determine which module is reporting the trouble code, one would have to turn the headers on (ATH1) and then look at the third byte of the three byte header for the address of the module that sent the information.Having determined the number of codes stored, the next step is to request the actual trouble codes with a mode 03 request:>03A response to this could be:43 01 33 00 00 00 00The ‘43’ in the above response simply indicates that this is a response to a mode 03 request. The other 6 bytes in the response have to be read in pairs to show the trouble codes (the above would be interpreted as 0133, 0000, and 0000). Note that there is only one trouble code here. The response has been padded with 00’s as is required by the standard, and the extra 0000’s do not represent actual trouble codes.As was the case when requesting the number of stored codes, the most significant bits of each trouble code also contain additional information. It is easiest to use the following table to interpret the first digit of trouble codes as follows:Taking the example trouble code (0133), the first digit (0) would then be replaced with P0, and the 0133 reported would become P0133 (which is the code for an ‘oxygen sensor circuit slow response’). As for further examples, if the response had been D016, the code would be interpreted as U1016, while a 1131 would be P1131.Had there been codes stored by more than one module, or more than three codes stored in the same module, the above response would have consisted of multiple lines. To determine which module is reporting each trouble would then require turning the headers on with an ATH1 command.When hardware or data problems are encountered, the ELM320 will respond with one of the following short messages. Here is a brief description of each:BUS BUSYThe ELM320 tried to send the mode command or request for about 0.5 seconds without success.Messages are all assigned priorities, which allows one message to take precedence over another.More important things may have been going on, so try re-issuing your request.BUS ERRORAn attempt was made to send a message, and the data bus voltage did not respond as expected. This could be because of a circuit short or open, so check all of your connections and try once more.DATA ERRORThere was a response from the vehicle, but the information could not be recovered. Most likely it did not contain enough bytes to be a validmessage, which can occur if a ‘Break’ signal is issued by another module.<DATA ERRORThe error check result (CRC byte) was not as expected, indicating a data error in the line pointed to (the ELM320 still shows you what it received).There could have been a noise burst which interfered, or a circuit problem. Try resending the request.NO DATAThere was no response from the vehicle. The mode requested may not be supported, so the vehicle ignored you, or possibly the key needs to be turned on. Try issuing a 01 00 command to be sure that the vehicle is ready to receive commands.?This is the standard response for a misunderstood command received on the RS232 bus. Usually it is due to a typing mistake.The ELM320 is quite capable of resetting diagnostic trouble codes, as this only requires issuing a mode 04 command. The consequences should always be considered before sending it, however, as more than the MIL (or ‘Check Engine’ lamp) will be reset. In fact, issuing a mode 04 will:- reset the number of trouble codes - erase any diagnostic trouble codes - erase any stored freeze frame data- erase the DTC that initiated the freeze frame - erase all oxygen sensor test data - erase mode 06 and 07 test resultsClearing of all of this information is not unique to the ELM320, as it occurs whenever a scan tool is used to reset your codes. Understand that the loss of this data could cause your car to run poorly for a short time as well, while the system recalibrates itself.To avoid inadvertently erasing stored information,the SAE specifies that scan tools must verify that a mode 04 is intended (“Are you sure?”) before actually sending it to the vehicle, as all trouble code information is immediately lost when the mode is sent.Recall that the ELM320 does not monitor the content of messages, so it will not know to ask for confirmation of the mode request - this would have to be the duty of a software interface if one is written.As stated, to actually erase diagnostic trouble codes, one need only issue a mode 04 command. A response of 44 from the vehicle indicates that the mode request has been carried out, the information erased, and the MIL turned off. Some vehicles may require a special condition to occur (the ignition on but the engine not running, etc.) before it will respond to a mode 04 command.That is all there is to clearing the codes. Once again, be very careful not to inadvertently issue an 04!The SAE J1962 standard dictates that all OBD compliant vehicles must provide a standard connector near the driver’s seat, the shape and pinout of which is shown in Figure 1 below. The circuitry described here will be used to connect to this plug without modification to your vehicle.The male J1962 connector required to mate with a vehicle’s connector may be difficult to obtain in some locations, and you could be tempted to improvise by making your own connections to the back of your vehicle’s connector. If doing so, we recommend that you do nothing which would compromise the integrity of your vehicle’s OBD network. The use of any connector which could easily short pins (such as an RJ11 type telephone connector) would definitely not be recommended.The circuit of Figure 2 on the next page shows how the ELM320 would typically be used. Circuit power has been obtained from the vehicle (via OBD pins 16 and 5) and, after some minor filtering, is presented to a five volt regulator. The output of this regulator powers several points in the circuit as well as an LED (for visual confirmation that power is present).The remaining two connections to the vehicle (OBD pins 2 and 10) are for the differential data system specified by the J1850 PWM standard. When no data is being transmitted, both wires are idle with the transistor drivers off, and the resistive pullup and pulldown allowing voltage levels to float to the supply levels. Note that the PNP driver transistor, and the 2.7K Ω pullup resistor both have series protection diodes to prevent backfeeds into the ELM320 circuitry.The ELM320 has only one OBD data ouput line (pin 7). It is an active low signal, so must be used to drive the open-collector ‘Bus +’ signal via the PNP transistor as shown. By using a portion of this same signal to drive the NPN transistor for the ‘Bus -’ signal,one obtains open collector differential drive.Data is received from the OBD bus and level shifted by the NPN/PNP transistor pair shown connected to pin 4 of the ELM320. The NPN transistor detects the differential data signal while allowing for the presence of common mode voltages, and the PNP transistor provides the 0 to 5 volt levels required by OBDIn.A very basic RS232 interface is shown connected to pins 5 and 6 of the ELM320. This circuit ‘steals’power from the host computer in order to provide a full swing of the RS232 voltages without the need for a negative supply. The RS232 pin connections shownare for a 25 pin connector. If you are using a 9 pin, the connections would be 2(RxD), 5(SG) and 3(TxD).RS232 data from the computer is directly connected to pin 5 of the IC through only a 47K Ωcurrent limiting resistor. This resistor allows for voltage swings in excess of the supply levels while preventing damage to the ELM320. A single 100K Ω resistor is also shown in this circuit so that pin 5 is not left floating if the computer is disconnected.Transmission of RS232 data is via the single PNP transistor connected to pin 6. This transistor allows the output voltage to swing between +5V and the negative voltage stored on the 0.1µF capacitor (which is charged by the computer’s TxD line). Although it is a simple connection, it is quite effective for this type of application.Finally, the crystal shown connected between pins 2 and 3 is a common TV type that can be easily and inexpensively obtained. The 27pF crystal loading capacitors shown are typical only, and you may have to select other values depending on what is specified for the crystal you obtain.This completes the description of the circuit. While it is the minimum required to talk to an OBD equipped vehicle (it relies on such techniques as using the internal current limiting of the 78L05 for circuit protection, etc.), it is a fully functional circuit. As an experimenter, you may want to expand on it, though,providing more protection from faults and electrostatic discharge, or providing a different interface for the RS232 connection to the computer. Then perhaps a Basic program to make it easier to talk to the vehicle,and a method to log your findings, and…Figure 1. Vehicle Connector。
迈普网管产品
迈普网管产品系列目录MyPower M1000系列远程支援接入设备 (1)Maipu Masterplan迈普统一网络管理平台 (11)Maipu PolicyMaster迈普安全网络管理系统 (15)Maipu AAA Server迈普AAA服务器 (18)Maipu DeviceMaster迈普路由交换设备管理系统 (21)Maipu NetInspector迈普路由器故障分析与排除工具 (24)Maipu AccessManager迈普综合接入网络管理系统 (29)MyPower M1000系列远程支援接入设备MyPower M1000系列是迈普公司自主研发的集远程维护、带外网管、数据采集功能于一体的远程支援接入设备，适用于运营商无人值守基站、模块局以及各类金融机构、政府机构、能源机构、交通机构的大型机房，能够帮助用户解决无人值守环境下针对不同厂商、不同类型大量设备的配置和维护问题，能够通过网络实现设备远程的安全带外网管，能够实现远端数据的采集。
My Power M1008远程支援接入设备外观图My Power M1032远程支援接入设备外观图My Power M1048远程支援接入设备外观图MyPower M1000系列远程支援接入设备通过线缆与被管理设备的配置口或者带外管理口相联，配合中心的管理软件Conlinker能够对被管理设备的配置口进行直接访问。
MyPower M1000系列远程支援接入设备采用领先的IP网络数据仿真技术，具有适应性强、应用广泛、安全可靠、易于管理等优点，是运营商用户提高网络管理和维护水平的重要工具。
关键特性优化网络维护模式支持多种线路接入支持数据透传功能远程管理安全可靠支持光电隔离*支持多用户的访问支持分级授权功能支持日志纪录功能支持异步口状态探测*远端设备灵活的接入能力分级分布中文图形化管理产品特点优化网络维护模式MyPower M1000系列远程支援接入设备针解决传统SNMP网络管理系统失效时（比如网络中断、线路中断、配置丢失等）的网络管理及故障恢复问题。
迈兰奧克高性能网络开关介绍说明书
©2020 Mellanox Technologies. All rights reserved.†For illustration only. Actual products may vary.Mellanox provides the world’s smartest switch, enabling in-network computing through the Co-Design Scalable Hierarchical Aggregation and Reduction Protocol (SHARP)™ technology. QM8790 has the highest fabric performance available in the market with up to 16Tb/s of non-blocking bandwidth with sub-130ns port-to-port latency.SCALING-OUT DATA CENTERS WITH HDR 200G INFINIBANDFaster servers, combined with high-performance storage and applications that use increasingly complex computations are causing data bandwidth requirements to spiral upward. As servers are deployed with next generation processors, High-Performance Computing (HPC) environments and Enterprise Data Centers (EDC) will need every last bit of bandwidth delivered with Mellanox’s next generation of HDR InfiniBand, high-speed, smart switches.WORLD’S SMARTEST SWITCHBuilt with the Mellanox Quantum InfiniBand switch device, the QM8790 provides up to forty 200Gb/s ports, with full bi-directional bandwidth per port. These stand-alone switches are an ideal choice for top-of-rack leaf connectivity or for building small to extremely large sized clusters.QM8790 is the world’s smartest network switch, designed to enable in-network computing through the Co-Design Scalable Hierarchical Aggregation and Reduction Protocol (SHARP)™ technology. The Co-Design architecture enables the usage of all active data center devices to accelerate thecommunications frameworks using embedded hardware, resulting in an order of magnitude application performance improvements.QM8790 enables efficient computing with features such as static routing, adaptive routing, congestion control and enhanced VL mapping to enable modern topologies (SlimFly, Dragonfly+, 6DT). These ensure the maximum effective fabric bandwidth by eliminating congestion hot spots.The QM8790 switch has best-in-class design to support low power consumption. Power is further reduced upon partial port utilization.COLLECTIVE COMMUNICATION ACCELERATIONCollective communication describes communication patterns in which all members of a group ofcommunication endpoints participate. Collective communications are commonly used in HPC protocols such as MPI and SHMEM.40-port Non-blocking Externally Managed HDR 200Gb/s InfiniBand Smart SwitchQM8790Mellanox Quantum ™HDR Edge SwitchPRODUCT BRIEFSWITCH SYSTEM †350 Oakmead Parkway, Suite 100, Sunnyvale, CA 94085Tel: 408-970-3400 • Fax: © Copyright 2020. Mellanox Technologies. All rights reserved.Mellanox, Mellanox logo, and Connect-X are registered trademarks of Mellanox Technologies, Ltd. Mellanox Quantum and Scalable Hierarchical Aggregation and Reduction Protocol (SHARP) are trademarks of Mellanox Technologies, Ltd. All other trademarks are property of their respective owners.Mellanox QM8790 InfiniBand Switchpage 2The Mellanox Quantum switch improves the performance of selected collective operations by processing the data as it traverses the network, eliminating the need to send data multiple times between endpoints.It also supports the aggregation of large data vectors at wire speed to enable MPI large vector reduction operations, which are crucial for machine learning applications.HDR100QM8790 together with the Mellanox ConnectX ®-6 adapter card support HDR100. By utilizing two pairs of two lanes per port, the QM8790 can support up to 80 ports of 100G to create the densest TOR switchavailable in the market. This is a perfect solution for double dense racks with more than 40 servers per rack and also helps small-medium deployments with the need to scale to 3-level fat-tree, to lower power, latency and space.BUILDING EFFICIENT CLUSTERSQM8790 is the industry’s most cost-effective building block for deploying high performance clusters and data centers. Whether looking at price-to-performance or energy-to-performance, QM8790 offers superior performance, low power and scale, reducing capital and operating expenses, and providing the best return-on-investment.Mellanox QM8790–19’’ rack mountable 1U chassis –40 QSFP56 non-blocking ports with aggregate data throughput up to 16Tb/s (HDR)Switch Specifications–Compliant with IBTA 1.21 and 1.3 –9 virtual lanes:8 data + 1 management –256 to 4Kbyte MTU–Adaptive Routing –Congestion control –Port Mirroring –VL2VL mapping–4X48K entry linear forwarding databaseManagement Ports–I 2C (RJ45)–System reset buttonConnectors and Cabling–QSFP56 connectors–Passive copper or active fiber cables –Optical modulesIndicators–Per port status LED Link, Activity –System LEDs: System, fans, power supplies –Unit ID LEDPower Consumption–Contact Mellanox SalesPower Supply–Dual redundant slots –Hot plug operation –Input range:100-127VAC, 200-240VAC–Frequency: 50-60Hz, single phase AC, 4.5A, 2.9ACooling–Front-to-rear or rear-to-front cooling option–Hot-swappable fan unitFEATURESSafety–CB –cTUVus –CE –CUEMC (Emissions)–CE –FCC –VCCI –ICES –RCMOperating Conditions–Temperature:–Operating 0ºC to 40ºC–Non-Operating -40ºC to 70ºC –Humidity:–Operating 10% to 85% non-condensing–Non-Operating 10% to 90% non-condensing–Altitude: Up to 3200mAcoustic–ISO 7779 –ETS 300 753Others–RoHS compliant –Rack-mountable, 1U –1-year warrantyCOMPLIANCETable 1 - Part Numbers and Descriptions53778PB Rev 2.1。
OPPO V3电路原理图
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明纬LED显示屏专用电源产品介绍说明书
图片来源：2020February明纬[MEAN WELL]成立于1982年，为世界标准交换式电源供应器领导品牌制造商之一。
目前在全球设有共三座生产基地（台湾、广州花都区、苏州）及五家财务独立之关联企业（台湾、美国、欧州、广州与苏州）。
明纬产品包含：AC/DC交换式电源、DC/DC转换器、LED防水电源、适配器（Adaptor）、电池充电器（Charger）以及DC/AC逆变器（Inverter）。
目前已超过10000种标准电源机型，广泛应用于医疗、工业自动化、电子、通讯、LED照明等领域。
明纬累积近40年经验，产品已经大量并广泛地被使用在LED显示屏,同时因其产品具备高信赖性及最佳性价比等特点，在客户端已经取得良好的品牌声誉及市场占有率。
多年来更致力于研发绿色节能电源产品。
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UM220模块硬件电路设计
1. 最小系统参考电路提供3.3V电源VCC将模块所有GND引脚接地连接GNSS_ANT信号至天线，注意线路50欧姆阻抗匹配如果采用非+2.85v的有源天线，用户需为天线提供馈电串口1连到用户的处理器，用户通过串口1来控制模块，并从模块收NMEA数据 模块只能通过串口3升级，确保串口3可以通过接口与PC互连PIN49脚为复位引脚，具体使用参考章节2UM220 硬件电路设计Figure 1 最小系统参考电路2. 复位电路设计参考电路UM220模块的PIN49脚（RST）为复位引脚，为确保复位有效，提供两种参考设计方案：方案一，连接RST引脚至应用处理器的GPIO，上电后，应用处理器通过GPIO拉低RST 引脚复位UM220模块，要求低电平持续时间大于5ms；方案二，不连接RST引脚至应用处理器的GPIO的情况下，需在模块的+3.3V供电电源上添加一个电源监测芯片MAX811，并将其输出接到RST引脚上，如下图所示：Figure 2 复位电路参考设计3UM220 硬件电路设计3. 天线状态检测参考电路天线状态检测利用馈电电流检测原理，当天线无馈电时不支持天线状态检测功能。
UM220 模块内部未集成天线状态的检测电路，天线状态检测功能可通过外部电路实现，建议添加如下设计至天线馈电电路。
Figure 3 天线检测参考电路5UM220 硬件电路设计上图中最左端为天线的供电电源，右上方的“To antenna”连接至天线提供电源。
右下方为天线状态输出的状态指示信号“OPEN”和“SHORT”，对应描述如下表:Table 1 天线状态对应输出指示信号：使用时请注意如下事项：参考电路中天线供电电压为5V，供电电流不超过80mA，如需其它供电电压或供电电流，需调整电路参数，确保SHORT和OPEN信号符合上表中的状态值 UM220只接受3.3V LVTTL电平，需确保连接到UM220模块管脚的OPEN和SHORT 信号为3.3V LVTTL电平UM220模块可以在PIN 46和PIN 14上检测天线状态，这需要固件支持，请确保您所使用的固件版本支持该功能。
NSVR0320MW2T1G;中文规格书,Datasheet资料
Characteristic Total Capacitance (VR = 5.0 V, f = 1.0 MHz) Reverse Leakage (VR = 15 V) Reverse Leakage (VR = 2.0 V @ 85C) Reverse Leakage (VR = 15.0 V @ 85C) Forward Voltage (IF = 10 mA) Forward Voltage (IF = 100 mA) Forward Voltage (IF = 900 mA) Symbol CT IR IR IR VF VF VF Min − − − − − − − Typ 25 10 200 450 0.24 0.30 0.45 Max 29 50 300 1000 0.27 0.35 0.50 Unit pF mA mA mA V V V
Semiconductor Components Industries, LLC, 2011
November, 2011 − Rev. 4
Publication Order Number: NSR0320MW2T1/D
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NSR0320MW2T1G, NSVR0320MW2T1G, NSR0320MW2T3G
VR, REVERSE VOLTAGE (V)
Figure 3. Total Capacitance
2
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NSR0320MW2T1G, NSVR0320MW2T1G, NSR0320MW2T3G
PACKAGE DIMENSIONS
SOD−323 CASE 477−02 ISSUE H
NSR0320MW2T1G;NSR0320MW2T3G;中文规格书,Datasheet资料
© Semiconductor Components Industries, LLC, 2011November, 2011 − Rev. 4Publication Order Number:NSR0320MW2T1/DNSR0320MW2T1G,NSVR0320MW2T1G,NSR0320MW2T3G Schottky Barrier DiodesThese Schottky barrier diodes are designed for high current,handling capability, and low forward voltage performance.Features∙Low Forward V oltage − 0.24 V olts (Typ) @ I F = 10 mAdc ∙High Current Capability ∙ESD Rating:♦Human Body Model: CLASS 3B ♦Machine Model: C∙AEC Qualified and PPAP Capable∙NSV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements∙These Devices are Pb −Free, Halogen Free/BFR Free and are RoHS Compliant*MAXIMUM RATINGS (T J = 125︒C unless otherwise noted)RatingSymbol Value Unit Reverse Voltage V R 20Vdc Peak Revese VoltageV RM 23V Forward Power Dissipation @ T A = 25︒CDerate above 25︒C PF2002.0mW mW/︒C Forward Current (DC)ContinuousI F 1A Forward Currentt = 8.3 ms Half Sinewave I F 5A Junction Temperature Range T J −55 to +125︒C Storage Temperature RangeT stg−55 to +150︒CStresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.*For additional information on our Pb −Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.RD = Specific Device Code M = Date Code G = Pb −Free Package MARKING DIAGRAMHIGH CURRENTSCHOTTKY BARRIER DIODE12DevicePackage Shipping †ORDERING INFORMATIONSOD −323CASE 477STYLE 1†For information on tape and reel specifications,including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.NSR0320MW2T1G SOD −323(Pb −Free)3,000 / Tape & Reel NSR0320MW2T3GSOD −323(Pb −Free)10,000 / Tape & Reel(Note: Microdot may be in either location)NSVR0320MW2T1G SOD −323(Pb −Free)3,000 / Tape & Reel2ELECTRICAL CHARACTERISTICS (T A = 25︒C unless otherwise noted)CharacteristicSymbol Min Typ Max Unit Total Capacitance (V R = 5.0 V, f = 1.0 MHz)C T −2529pF Reverse Leakage (V R = 15 V)I R −1050m A Reverse Leakage (V R = 2.0 V @ 85︒C)I R −200300m A Reverse Leakage (V R = 15.0 V @ 85︒C)I R −4501000m A Forward Voltage (I F = 10 mA)V F −0.240.27V Forward Voltage (I F = 100 mA)V F −0.300.35V Forward Voltage (I F = 900 mA)V F−0.450.50V1101001000VF, FORWARD VOLTAGE (V)I F , F O R W A R D C U R R E N T (m A )Figure 1. Forward Voltage 110100100010000VR, REVERSE VOLTAGE (V)Figure 2. Leakage CurrentI R , R E V E R S E C U R R E N T (m A )02040608010012014005101520VR, REVERSE VOLTAGE (V)C T , C A P A C I T A N C E (p F )Figure 3. Total CapacitancePACKAGE DIMENSIONSSOD −323CASE 477−02ISSUE HSTYLE 1:PIN 1.CATHODE2.ANODE*For additional information on our Pb −Free strategy and solderingdetails, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.SOLDERING FOOTPRINT*ǒmm inchesǓSCALE 10:1H E NOTES:1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETERS.3.LEAD THICKNESS SPECIFIED PER L/F DRAWING WITH SOLDER PLATING.4.DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.5.DIMENSION L IS MEASURED FROM END OF RADIUS.NOTE 3DIM MIN NOM MAX MILLIMETERSA 0.800.90 1.00A10.000.050.10A30.15 REF b 0.250.320.4C 0.0890.120.177D 1.60 1.70 1.80E 1.15 1.25 1.350.082.30 2.50 2.70L 0.0310.0350.0400.0000.0020.0040.006 REF0.0100.0120.0160.0030.0050.0070.0620.0660.0700.0450.0490.0530.0030.0900.0980.105MIN NOM MAX INCHESON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.PUBLICATION ORDERING INFORMATION分销商库存信息:ONSEMINSR0320MW2T1G NSR0320MW2T3G。
2SP0320T_Manual_2010-11-23_CN_中文说明书
图 1 2SP0320T用螺丝固定到PrimePACKTM IGBT模块上
PrimePACK是Infineon Technologies AG, Munich的商标
第1页
2SP0320T 描述与应用手册
目录
系统概述 ............................................................................................................................................. 4 使用方法 ............................................................................................................................................. 5
概述 ..................................................................................................................................... 8 VCC 端子 .............................................................................................................................. 8 VDC 端子 .............................................................................................................................. 9 MOD（模式选择） ................................................................................................................ 9 INA、INB（驱动输入端，例如 PWM 信号） .......................................................................... 10 SO1、SO2（状态输出） ...................................................................................................... 10 TB（阻断时间 Tb 设定端） .................................................................................................. 10
华芯微特科技有限公司 SWM150 系列 ARM Cortex-M0 32 位微处理器数据手册说明书
ARM®Cortex TM-M032位微处理器SWM150系列MCU数据手册华芯微特科技有限公司Synwit Technology Co., Ltd.目录1概述 (5)2特性 (5)3选型指南 (6)4功能方框图 (7)5管脚配置 (8)5.1TQFP48 (8)5.2LQFP64 (9)5.3管脚描述 (9)6功能描述 (13)6.1存储器映射 (13)6.2中断控制器 (15)6.3系统定时器 (20)6.4系统控制器 (21)6.5系统管理（SYSCON） (23)6.6通用I/O（GPIO） (49)6.7通用型定时器（TIMER） (55)6.8专用定时器（TIMERSE） (58)6.9看门狗定时器（WDT） (64)6.10UART接口控制器（UART） (67)6.11串行外设接口（SPI）控制器 (75)6.12脉冲宽度调制（PWM）发生器 (89)6.13模拟数字转换器（ADC） (101)6.14正交编码器（QEI） (110)6.15比较器/放大器（CMP） (119)6.16ISP及FLASH操作 (123)7典型应用电路 (125)8电气特性 (125)8.1绝对最大额定值 (125)8.2DC电气特性 (125)8.3AC电气特性 (126)8.4模拟器件特性 (127)9封装信息 (128)9.1TQFP48 (128)9.2LQFP64 (129)10版本记录 (130)图目录图4-1功能方框图 (7)图5-1 LQFP64封装管脚配置 (8)图5-2 LQFP64封装管脚配置 (9)图6-2 I/O引脚示意图 (26)图6-3 FLASH接口示意图 (27)图6-4 端口E滤波示意图 (50)图6-5 脉冲捕捉示意图 (59)图6-6 占空比捕捉示意图 (60)图6-7 UART结构图 (67)图6-8 串行数据格式 (68)图6-9 UART配置流程 (68)图6-10 SPI单个数据传输帧格式（SCPH=0） (77)图6-11 SPI连续数据传输帧格式（SCPH=0） (77)图6-12 SPI单个数据传输帧格式（SCPH=1） (78)图6-13 SPI连续数据传输帧格式（SCPH=1） (78)图6-14 Microwire不连续数据传输帧格式（不连续读数据） (79)图6-15 Microwire连续数据传输帧格式（连续读数据） (79)图6-16 Microwire单个数据传输帧格式（写数据） (80)图6-17 SSP单个数据传输帧格式 (80)图6-18 SSP多个数据连续传输帧格式 (80)图6-19 PWM结构示意图 (90)图6-20 死区发生示意图 (91)图6-21 PWM普通模式波形示意图 (91)图6-22 未开启死区的互补模式 (92)图6-23 开启死区的互补模式 (92)图6-24 中心对称模式 (93)图6-25 ADC结构示意图 (102)图6-26 ADC中断示意图 (104)图6-27 增量式正交编码盘示意图 (110)图6-28 三相信号正向/反向旋转时序关系 (111)图6-29 QEI结构示意图 (111)图6-30 x4计数模式 (112)图6-31 x2计数模式 (112)图6-32 可编程数字噪声滤波器结构框图 (113)图6-33 信号通过滤波器传播 (113)图6-34 索引复位模式 (113)图6-35 计数匹配复位模式 (114)图6-36 比较器/放大器结构示意图 (119)图7-1 典型应用电路图 (125)图9-1 TQFP48封装 (128)图9-2 LQFP64封装 (129)表格目录表格3-1 SWM240系列MCU选型表 (6)表格6-2 中断编号及对应外设 (15)表格8-1绝对最大额定值 (125)表格8-2 DC电气特性( Vdd-Vss = 3.3V, Tw =25℃) (125)表格8-3 内部振荡器特征值 (126)表格8-4 SAR ADC特征值 (127)表格8-5 比较器/放大器特性 (127)1概述SWM150系列MCU是基于ARM® Cortex TM-M0的32位微控制器。
WFM200S Wi-Fi Expansion Kit 用户指南说明书
UG407: WFM200S Wi-Fi® Expansion Kit User's GuideThe WFM200S Wi-Fi Expansion Kit is an excellent way to ex-plore and evaluate the WFM200S Wi-Fi Transceiver Module with a Raspberry Pi or an EFM32 MCU for your embedded applica-tion.The WFM200S Wi-Fi Transceiver Module is an easy to use and easy to interface Wi-Fi Network Co-Processor (NCP). Most of the associated complexity of Wi-Fi and the pro-tocol stack is offloaded to the NCP and allows for easy Wi-Fi integration into any em-bedded system.The kit easily integrates and brings Wi-Fi connectivity to a compatible Silicon Labs MCU Starter Kit through the EXP header. The WFM200S Wi-Fi Expansion Kit has also been designed after the Raspberry Pi Hardware Attached on Top (HAT) board specifi-cation, allowing the WFM200S Wi-Fi Expansion Kit to connect to a Raspberry Pi.WFM200S EXPANSION BOARD FEATURES•Selectable SPI or SDIO host interface •EXP connector for interfacing Silicon Labs Starter Kits•Allows board detection andidentification•Raspberry Pi compatible HAT•40-pin header•HAT EEPROM for identificationTable of Contents1. Introduction (3)1.1 Kit Contents (4)2. Hardware Overview (5)2.1 Hardware Layout (5)3. WFM200S Wi-Fi NCP Expansion Kit (6)3.1 Host Interfaces (6)3.2 Power-on and Manual Reset Circuit (7)4. Connectors (8)4.1 EXP Header (9)4.1.1 Pass-through EXP Header (9)4.1.2 EXP Header Pinout (10)4.2 Raspberry Pi Connector (11)4.2.1 Raspberry Pi Connector Pinout (12)4.3 External FEM Connector (13)4.3.1 External FEM Connector Pinout (13)4.4 PTA Connector (14)4.4.1 PTA Connector Pinout (14)4.5 Secondary RF Connector (14)4.6 Power Supply (15)5. Schematics, Assembly Drawings, and BOM (16)6. Kit Revision History (17)6.1 SLEXP8023A Revision History (17)6.2 SLEXP8023C Revision History (17)7. Document Revision History (18)1. IntroductionThis user guide describes the WFM200S Wi-Fi Expansion Kit. The kit connects to either a Silicon Labs EFM32 MCU starter kit (STK), a Silicon Labs EFR32 wireless starter kit (WSTK) or a Raspberry Pi equipped with the 40-pin Raspberry Pi hardware-attached-on-top (HAT) connector. SDIO support is available only with selected hosts.Figures 1.1 and 1.2 shows the kit connected to a Silicon Labs MCU STK through the Expansion Header and a Raspberry Pi, respec-tively.Figure 1.1. WFM200S Wi-Fi Expansion Kit Connected to a Silicon Labs EFM32GG11 MCU STKFigure 1.2. WFM200S Wi-Fi Expansion Kit Connected to a Raspberry Pi Note: Do not connect the kit to both a Silicon Labs MCU STK and a Raspberry Pi at the same time.1.1 Kit ContentsThe WFM200S Wi-Fi Expansion Kit comes in two versions, which differs in what's included in the box:•SLEXP8023A:•BRD8023A WFM200S Wi-Fi EXP Board•8 GB Micro-SD card with software image for Raspberry Pi 2•SLEXP8023C:•BRD8023A WFM200S Wi-Fi EXP Board•8 GB Micro-SD card with software image for Raspberry Pi 2•Raspberry Pi 2 Model B Single-Board Computer•Raspberry Pi Power Supply 5.1 V, 2.5 A2. Hardware Overview2.1 Hardware LayoutThe layout of the WFM200S Wi-Fi Expansion Kit is shown in the figure below.EXP-header for Starter Kits Power source select switchPass-through EXP-header Not mountedRaspberry Pi connectorOn bottom sideCurrent consumptionmeasurement headerNot mountedWFM200S Wi-FiExpansion BoardHost interfaceselect switchSecondary RF outputcoaxial connectorExternal FEM headerNot mountedPTA headerNot mountedReset buttonFigure 2.1. WFM200S Wi-Fi Expansion Kit Hardware LayoutHardware Overview3. WFM200S Wi-Fi NCP Expansion KitThe WFM200S Wi-Fi Transceiver Module is a Wi-Fi Network Co-Processor (NCP) transceiver from Silicon Labs.3.1 Host InterfacesSPI and SDIO are the two available host interfaces (HIF) on the WFM200S Wi-Fi Expansion Kit. A slide switch, whose state is sampled during power-on reset or manually issued reset is used to select the interface. The slide switch must remain in the same position throughout the duration of the session since it also controls HIF selection multiplexer circuits.When the WFM200S Wi-Fi Expansion Kit is connected to an EFM32/EFR32 starter kit through the EXP header, the state of the HIF selection switch can be read (but not controlled) by the kit mcu through a GPIO pin.The WFM200S Wi-Fi Expansion Kit incorporates a set of multiplexer circuits which allows the user to use the same kit for evaluating the WFM200S in both applications requiring SPI or SDIO connectivity to the host. These circuits will normally not be needed in an end-user application since in most cases the interface to use will be fixed.A simplified circuit diagram showing the host interface multiplexer circuits is shown below. The EXP_HEADER9 signal is connected to pin 9 on the EXP header, while the HIF_OEn output enable signal is controlled by the power-on reset circuit (explained later).Figure 3.1. Host Interface Multiplexer Circuit3.2 Power-on and Manual Reset CircuitTo ensure that the state of the host interface selection signal is sampled correctly at the rising edge of the WFM200S RESETn signal, a power-on reset circuit has been added to the WFM200S Wi-Fi Expansion Kit. This circuit achieves this by•Adding a delay of 1ms to the rising edge of the RESETn signal with respect to the rising edge of the power supply•Isolating the host from the WFM200S DAT2/HIF_SEL pin during the rising edge of the RESETn signalThe figure below shows the circuit diagram for the power-on and manual reset circuit. Its functionality is as follows:•NCP_RESETn is the active-low reset signal of the WFM200S. The WFM200S RESETn pin has an internal pull-up of approximately43 kOhms. The on-board reset button is connected to this signal.•HIF_SEL_CTRL is the signal from the HIF selection switch•HIF_OEn is the active-low output enable signal of the HIF multiplexer circuits•WF_DAT2_HIF_SEL is the combined SDIO DAT2 signal and HIF selection signal of the WFM200S•U114 is an open-drain active low output reset monitor which with the installed capacitor connected to the CD pin keeps NCP_RE-SETn tied to ground for about 1 ms after VMCU_NCP has exceeded the threshold voltage of 0.9 V•U115 is a tri-state output buffer with an active low output enable signal connected to NCP_RESETn which pulls the CD pin of U116 low while NCP_RESETn is low•U116 is a push-pull active high output reset monitor which drives HIF_OEn high for 1 ms after the output of U115 is disabled•U109 is a tri-state output buffer with an active high output enable signal which connects the HIF_SEL_CTRL signal to the WF_DAT2_HIF_SEL signal as long as HIF_OEn is highThe NCP_RESETn signal is available on both the EXP header and the Raspberry Pi connector and can be used for issuing a manual reset sequence by pulling it low for at least 1 ms.Note: Reset button is effective when board is not connected to MCU or Raspberry Pi boards. When connected, change of host inter-face is effective after reboot.Figure 3.2. Power-on and Manual Reset Circuit Diagram4. ConnectorsThis chapter gives an overview of the WFM200S Wi-Fi Expansion Kit connectivity and power connections.Pass-through EXP Header(Bottom side)External FEM connector Figure 4.1. WFM200S Wi-Fi Expansion Kit Connector Layout4.1 EXP HeaderOn the left-hand side of the WFM200S Wi-Fi Expansion Kit, a right-angle female 20-pin EXP header is provided to connect to one of Silicon Labs’ supported Starter Kits. The EXP header on the Starter Kits follows a standard which ensures that commonly used periph-erals such as an SPI, a UART, and an I 2C bus, are available on fixed locations on the connector. Additionally, the VMCU, 3V3 and 5 V power rails are also available on the expansion header. For detailed information regarding the pinout to the expansion header on a specific Starter Kit, consult the accompanying user’s guide.The figure below shows how the WFM200S Wi-Fi Transceiver Module is connected to the connector and the peripheral functions that are available.VMCUSPI_MOSI / SDIO_DAT1SPI_MISO / SDIO_DAT0SPI_SCLK / SDIO_CMD SPI_CS / SDIO_CLK SPI_WIRQ / SDIO_DAT3SDIO_DAT2Not Connected (NC)5V3V3GNDGPIO_WUP Not Connected (NC)RESETnHIF_SEL_CTRL Not Connected (NC)Not Connected (NC)Not Connected (NC)BOARD_ID_SDA BOARD_ID_SCL Reserved (Board Identification)WFM200S I/O PinFigure 4.2. Expansion Header4.1.1 Pass-through EXP HeaderThe WFM200S Wi-Fi Expansion Kit features a footprint for a secondary EXP header. All signals from the EXP header, including those that are not connected to any features on the WFM200S Wi-Fi Expansion Kit, are directly tied to the corresponding pins in the footprint,allowing daisy-chaining of additional expansion boards if a connector is soldered in.4.1.2 EXP Header PinoutThe table below shows the pin assignments of the EXP header.Table 4.1. EXP Header Pinout4.2 Raspberry Pi ConnectorOn the bottom side of the WFM200S Wi-Fi Expansion Kit, a dual row, female socket, 0.1" pitch connector is installed to allow the WFM200S Wi-Fi Expansion Kit to act as a Raspberry Pi Hardware Attached on Top (HAT) board.The figure below shows how the WFM200S Wi-Fi Transceiver Module is connected to the connector and the peripheral functions that are available.Reserved (Board Identification)WFM200S I/O PinGNDSDIO_DAT2Not Connected (NC)RESETnGPIO_WIRQNot Connected (NC)RPI_ID_SDGND SPI_SCLKSPI_MISO Not Connected (NC)Not Connected (NC)SPI_WIRQGNDGPIO_WUP GNDRPI_ID_SC Not Connected (NC)SDIO_DAT1SPI_CSSPI_MOSI 3V3SDIO_CLKSDIO_DAT3 Not Connected (NC)GNDNot Connected (NC)Not Connected (NC) Not Connected (NC)3V3GNDSDIO_DAT0SDIO_CMD GNDNot Connected (NC)GPIO_FEM_5GPIO_FEM_6GND5V 5VFigure 4.3. Raspberry Pi Connector4.2.1 Raspberry Pi Connector PinoutThe table below shows the pin assignments of the Raspberry Pi connector, and the port pins and peripheral functions that are available on the WFM200S Wi-Fi Expansion Kit.Table 4.2. Raspberry Pi Connector Pinout4.3 External FEM ConnectorThe WFM200S Wi-Fi Expansion Kit features a 2x5-pin 0.1" pitch connector exposing the WFM200S Wi-Fi Transceiver Module's exter-nal front-end module (FEM) interface, which allows the connection of an external FEM board using a ribbon cable.The WFM200S Wi-Fi Expansion Kit also features a TX/RX activity indicator LED which is connected to the FEM_5 signal. By default, to optimize power consumption, TX/RX activity LED is not enabled. PDS sections PROG_PINS_CFG and FEM_CFG should be updated to enable this functionality.The pinout of the connector is illustrated in the figure below.GNDFEM_PDETFEM_6FEM_5VMCU_NCPFEM_4FEM_3VMCU_NCPFEM_2FEM_1Figure 4.4. External FEM Connector4.3.1 External FEM Connector PinoutThe pin assignment of the external FEM connector on the board is given in the table below.Table 4.3. External FEM Connector Pin Descriptions4.4 PTA ConnectorThe WFM200S' packet transfer arbitration (PTA) interface for managing coexistence in a multi-transceiver application is exposed on a 1x5-pin 0.1" pitch header on the WFM200S Wi-Fi Expansion Kit.The pinout of the connector is illustrated in the figure below.PTA_STATUS / PRIORITY PTA_RF_ACT / REQUESTPTA_FREQ / RHOPTA_TX_CONF / GRANT GNDFigure 4.5. PTA Connector4.4.1 PTA Connector PinoutThe pin assignment of the PTA connector on the board is given in the table below.Table 4.4. PTA Connector Pin Descriptions4.5 Secondary RF ConnectorThe WFM200S' secondary RF output is exposed on the WFM200S Wi-Fi Expansion Kit through a Hirose u.FL coaxial connector.For connecting the secondary RF output to an RF measurement instrument, 50 ohms resistor R641 shall be removed and a u.FL to SMA adapter cable (not included with the kit) can be used. Examples of such adapter cables are the Taoglas CAB.721 (100 mm) or CAB.720 (200 mm) cable assemblies.4.6 Power SupplyThere are two ways to provide power to the kit:•The kit can be connected to, and powered by, a Silicon Labs MCU STK •The kit can be connected to, and powered by, a Raspberry PiNote: Connecting the WFM200S Wi-Fi Expansion Kit to both an EFM32/EFR32 STK and a Raspberry Pi at the same time is not a valid option.When connected to a Silicon Labs MCU STK, the WFM200S Wi-Fi Transceiver Module can either be powered by the VMCU rail present on the EXP header or through an LDO regulator on board the WFM200S Wi-Fi Expansion Kit. If connected to the VMCU rail of the starter kit, the current consumption of the WFM200S Wi-Fi Transceiver Module will be included in the starter kit's on-board Ad-vanced Energy Monitor (AEM) measurements. The LDO regulator draws power from the 5V net, and, hence, the power consumption of the WFM200S Wi-Fi Transceiver Module will not be included in any AEM measurements performed by the MCU STK.A mechanical power switch on the WFM200S Wi-Fi Expansion Kit is used to select between Low Power (AEM) mode and High Power (LDO) mode. When the switch is set to Low Power (AEM) mode, the WFM200S Wi-Fi Transceiver Module is connected to the VMCU net on the Expansion Header. When the switch is set to High Power (LDO) mode, the WFM200S Wi-Fi Transceiver Module is connec-ted to the output of the LDO. For applications requiring high power consumption or when the WFM200S Wi-Fi Expansion Kit is connec-ted to a Raspberry Pi, the power switch must be set to High Power (LDO) mode.A 0.1 ohm current sense resistor accompanied by a 2x2-pin 0.1" unpopulated header is provided to measure the current consumption of the WFM200S Wi-Fi Transceiver Module whenever AEM is not available or when the current consumption exceeds the measure-ment range of AEM.The power topology is illustrated in the figure below.Expansion HeaderRaspberry Pi ConnectorFigure 4.6. WFM200S Wi-Fi Expansion Kit Power TopologySchematics, Assembly Drawings, and BOM 5. Schematics, Assembly Drawings, and BOMSchematics, assembly drawings, and bill of materials (BOM) are available through Simplicity Studio when the kit documentation pack-age has been installed. They are also available from the Silicon Labs website and kit page.6. Kit Revision HistoryThe kit revision can be found printed on the kit packaging label, as outlined in the figure below.SLEXP8023A WFM200S Wi-Fi Expansion Kit194000022401-11-19A01Figure 6.1. Kit Label6.1 SLEXP8023A Revision History6.2 SLEXP8023C Revision History Kit Revision HistoryDocument Revision History 7. Document Revision HistoryRevision 1.02019-11-01•Initial document revision.Simplicity StudioOne-click access to MCU and wireless tools, documentation, software, source code libraries & more. Available for Windows, Mac and Linux!IoT Portfolio /IoTSW/HW/simplicityQuality/qualitySupport and CommunitySilicon Laboratories Inc.400 West Cesar ChavezAustin, TX 78701USADisclaimerSilicon Labs intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Labs products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Labs reserves the right to make changes without further notice to the product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Without prior notification, Silicon Labs may update product firmware during the manufacturing process for security or reliability reasons. Such changes will not alter the specifications or the performance of the product. Silicon Labs shall have no liability for the consequences of use of the information supplied in this document. This document does not imply or expressly grant any license to design or fabricate any integrated circuits. The products are not designed or authorized to be used within any FDA Class III devices, applications for which FDA premarket approval is required or Life Support Systems without the specific written consent of Silicon Labs. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant personal injury or death. Silicon Labs products are not designed or authorized for military applications. Silicon Labs products shall under no circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons. Silicon Labs disclaims all express and implied warranties and shall not be responsible or liable for any injuries or damages related to use of a Silicon Labs product in such unauthorized applications.Trademark InformationSilicon Laboratories Inc.® , Silicon Laboratories®, Silicon Labs®, SiLabs® and the Silicon Labs logo®, Bluegiga®, Bluegiga Logo®, Clock B uilder®, CMEMS®, DSPLL®, EFM®, EFM32®, EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®, Gecko®, Gecko OS, Gecko OS Studio, ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress® , Zentri, the Zentri logo and Zentri DMS, Z-Wave®, and others are trademarks or registered trademarks of Silicon Labs. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings. Keil is a registered trademark of ARM Limited. Wi-Fi is a registered trademark of the Wi-Fi Alliance. All other products or brand names mentioned herein are trademarks of their respective。
深圳市汉韬科技有限公司 NS-3102C 二路 0-20mA 模拟量输出模块 产品说明书
NS-3102C二路0-20mA模拟量输出模块产品说明书目录一、产品概述 (2)二、功能特点 (2)三、规格参数 (2)四、接口及功能说明 (3)4.1、电源接口 (4)4.2、通信接口 (4)4.3、设置按键 (4)4.4、指示灯 (4)4.5、典型应用接线方法 (4)4.6、尺寸图 (5)五、配置软件操作说明 (5)六、寄存器参数 (7)6.1、寄存器参数表 (7)6.2、寄存器操作说明 (7)七、RS485通信布线规范及注意事项 (9)7.1、RS485总线布线规范 (9)7.2、RS485布线注意事项 (10)线材选型推荐表 (10)常见故障排除 (10)重要说明 (10)一、产品概述NS-3102C为12位2路模拟量输出模块，隔离RS-485通讯接口，Modbus RTU 协议，配备良好的人机交互界面，使用方便，性能稳定，可以用DIN导轨安装方式。
带Fail-safe功能，模块通讯异常也能输出安全数值。
本产品适用于自动化控制系统、变频器、阀门、LED调光等综合RS-485通信系统。
二、功能特点电源输入DC15-36V具有过流和反接保护隔离RS485通讯接口MODBUS RTU协议信号接口有静电、雷击、浪涌保护两孔/卡扣固定安装带Fail-safe功能（通讯失效时，电流输出安全值）三、规格参数模块参数项目参数型号NS-3102CDC15-36V≤100mA2路电流工作电压工作电流输出类型输出量程分辨率0-20mA,4-20mA12位输出精度电流负载电阻温漂±0.5%600R（最大）±25ppm/℃产品尺寸产品重量使用环境100x54x32mm75g（净重）100g（毛重，含配件及盒子）-40℃到85℃，相对湿度5%-95%通讯参数项目参数通信类型通信协议通信距离波特率隔离型RS-485（隔离电压2500V）Modbus RTU1200米1200-115200bps，默认9600（8,n,1）停止位可设置，校验位可设置RS-485接口每线600W的防雷浪涌保护，±15KV ESD保护其他保护等级四、接口及功能说明485接口电源输入电流输出通道1电流输出通道2接口定义输入端输出端端子标识VCC 定义端子标识1+定义1 2 3 4电源15-36V电源负极0V123456电流输出通道1 GND485A485B1-2+RS-485通讯电流输出通道22-NCSET不接复位按键4.1、电源接口DC15-36V供电输入，电源电流大于等于80mA即可。
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NSR0320MW2T1Schottky Barrier DiodesThese Schottky barrier diodes are designed for high current, handling capability, and low forward voltage performance.Features•Low Forward V oltage − 0.24 V olts (Typ) @ I F = 10 mAdc •High Current Capability•ESD Rating− Human Body Model: CLASS 3B− Machine Model: C•Pb−Free Packages are AvailableMAXIMUM RATINGS(T J = 125°C unless otherwise noted)Rating Symbol Value Unit Reverse Voltage V R20Vdc Peak Revese Voltage VRM23V Forward Power Dissipation@ T A = 25°CDerate above 25°C P F2002.0mWmW/°CForward Current (DC) Continuous I F1AForward Currentt = 8.3 ms Half Sinewave I F5AJunction Temperature T J125 Max°CStorage Temperature Range T stg−55 to +150°C Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected.RD= Specific Device CodeM= Date CodeG= Pb−Free Package(Note: Microdot may be in either location)MARKINGDIAGRAMDevice Package Shipping†ORDERING INFORMATIONNSR0320MW2T1SOD−3233000/T ape & Reel SOD−323CASE 477STYLE 1M†For information on tape and reel specifications, including part orientation and tape sizes, pleaserefer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.NSR0320MW2T1G SOD−323(Pb−Free)3000/T ape & ReelNSR0320MW2T3G SOD−323(Pb−Free)10,000/T ape & ReelELECTRICAL CHARACTERISTICS (T A = 25°C unless otherwise noted)CharacteristicSymbol Min Typ Max Unit Total Capacitance (V R = 5.0 V, f = 1.0 MHz)C T −2529pF Reverse Leakage (V R = 15 V)I R −1050m Adc Reverse Leakage (V R = 2.0 V @ 85° C)I R −200300m A Reverse Leakage (V R = 15.0 V @ 85° C)I R −4501000m A Forward Voltage (I F= 10 mAdc)V F −0.240.27Vdc Forward Voltage (I F = 100 mAdc)V F −0.300.35Vdc Forward Voltage (I F = 900 mAdc)V F−0.450.50Vdc1101001000I F , F O R W A R D C U R R E N T (m A )VR, REVERSE VOLTAGE (V)Figure 3. Total CapacitancePACKAGE DIMENSIONSSOD−323CASE 477−02ISSUE GSTYLE 1:PIN 1.CATHODE2.ANODE*For additional information on our Pb−Free strategy and solderingdetails, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.SOLDERING FOOTPRINT*ǒmm inchesǓSCALE 10:1H E NOTES:1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETERS.3.LEAD THICKNESS SPECIFIED PER L/F DRAWING WITH SOLDER PLATING.4.DIMENSIONS A AND B DO NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS.5.DIMENSION L IS MEASURED FROM END OF RADIUS.NOTE 3DIM MIN NOM MAX MILLIMETERSA 0.800.90 1.00A10.000.050.10A30.15 REF b 0.250.320.4C 0.0890.120.177D 1.60 1.70 1.80E 1.15 1.25 1.350.082.30 2.50 2.70L 0.0310.0350.0400.0000.0020.0040.006 REF0.0100.0120.0160.0030.0050.0070.0620.0660.0700.0450.0490.0530.0030.0900.0980.105MIN NOM MAX INCHESON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.PUBLICATION ORDERING INFORMATION。