TLC2543引脚、功能及时序中文资料

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新型数转换器TLC2543的串行接口及其应用

图２串行外设接口一内部结构和数据流
（德州仪器公司）为接口的主要部分。微处理器可以用软件配置为ＳＩＰ的主机或从机。当作为主机，数据通过ＳＩ（ＯＩ从机输出主机输入）Ｒ管脚输＾到ＳＩＰ移位寄存器（ＰＤＴ。同时数据通过ｓＭ（５ＩＡ）ＩＯ从机输入主机输出）管脚从Ｓ］Ｐ移位寄存器（ＰＤＴ输出。ＳＩＡ）ＳＩＰ的功能如下。ＰＤＴＳＩＡ必须装Ａ要发送数据的第
一
个字节。样对这个字节的传送自动初始化在这个这
数据传送时间内，数据在另一个ＳＩＡ被接收。ＳＩＰＤＴＰ［ＴＦＡＮＬＧ定时被检查。当数据的最后一位被接收到，ＳＩＩＴＦＡ被置为１ＰＮＬＧ。这表示接收的数据字节可以
统，并给出三个主流ｕ８Ｃ１６Ｈ１，Ｍ３０的接（０５，８Ｃ１ＴＳ７）口电路。
２Ｌ２４简介．ＴＣ５３
● 串行数据同时输入和输出 ● 同步工作 ● 提供频率可编程的串行时钟 ● 数据传送结束标志图２示Ｓ１的结构。这个例子中用ＴＳ７Ｃｌ显ＰＭ３０ＯＯ
图４ＴＣ５３与６Ｈ１Ｅ微处理器接【Ｌ２４８Ｃ２１＝Ｊ
ＬＢ始）是否需要单极性（Ｓ开和二进制）或般极性（进制二
（Ｄ）具有ｌ位的分辨率，使用开关电容逐次逼近技ＡＣ，２术完成Ａ转换过程，提供的最大采样率为６ＫＰ，供Ｄ６ＳＳ

TLC2543 芯片资料

IMPORTANT NOTICETexas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability.TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements.CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK.In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards.TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.Copyright © 1998, Texas Instruments Incorporated。

tlc2543中文资料

PACKAGING INFORMATIONOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)5962-9688601QRA ACTIVE CDIP J201TBD A42N/A for Pkg Type TLC2543CDB ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDBG4ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIM TLC2543CDBLE OBSOLETE SSOP DB20TBD Call TI Call TITLC2543CDBR ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDBRG4ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDW ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDWG4ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDWR ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDWRG4ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CFN ACTIVE PLCC FN2046Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CFNG3ACTIVE PLCC FN2046Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CFNR ACTIVE PLCC FN201000Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CFNRG3ACTIVE PLCC FN201000Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CN ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeTLC2543CNE4ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeTLC2543IDB ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDBG4ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDBR ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDBRG4ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDW ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDWG4ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDWR ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDWRG4ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IFN ACTIVE PLCC FN2046Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543IFNG3ACTIVE PLCC FN2046Green(RoHS&CU SN Level-1-260C-UNLIMOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)no Sb/Br)TLC2543IFNR OBSOLETE PLCC FN20TBD Call TI Call TITLC2543IN ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeTLC2543INE4ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg Type TLC2543MJ ACTIVE CDIP J201TBD A42N/A for Pkg Type TLC2543MJB ACTIVE CDIP J201TBD A42N/A for Pkg Type (1)The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.(2)Eco Plan-The planned eco-friendly classification:Pb-Free(RoHS),Pb-Free(RoHS Exempt),or Green(RoHS&no Sb/Br)-please check /productcontent for the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.Pb-Free(RoHS):TI's terms"Lead-Free"or"Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all6substances,including the requirement that lead not exceed0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free(RoHS Exempt):This component has a RoHS exemption for either1)lead-based flip-chip solder bumps used between the die and package,or2)lead-based die adhesive used between the die and leadframe.The component is otherwise considered Pb-Free(RoHS compatible)as defined above.Green(RoHS&no Sb/Br):TI defines"Green"to mean Pb-Free(RoHS compatible),and free of Bromine(Br)and Antimony(Sb)based flame retardants(Br or Sb do not exceed0.1%by weight in homogeneous material)(3)MSL,Peak Temp.--The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications,and peak solder temperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary,and thus CAS numbers and other limited information may not be available for release.In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s)at issue in this document sold by TI to Customer on an annual basis.OTHER QUALIFIED VERSIONS OF TLC2543,TLC2543M:•Automotive:TLC2543-Q1•Enhanced Product:TLC2543-EPNOTE:Qualified Version Definitions:•Automotive-Q100devices qualified for high-reliability automotive applications targeting zero defects•Enhanced Product-Supports Defense,Aerospace and Medical ApplicationsTAPE AND REEL INFORMATION*All dimensions are nominalDevicePackage Type Package Drawing Pins SPQReel Diameter (mm)Reel Width W1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W (mm)Pin1Quadrant TLC2543CDBR SSOP DB 202000330.016.48.27.5 2.512.016.0Q1TLC2543IDBRSSOPDB202000330.016.48.27.52.512.016.0Q1*All dimensions are nominalDevice Package Type Package Drawing Pins SPQ Length(mm)Width(mm)Height(mm) TLC2543CDBR SSOP DB202000346.0346.033.0TLC2543IDBR SSOP DB202000346.0346.033.0IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries(TI)reserve the right to make corrections,modifications,enhancements,improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty.Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty.Except where mandated by government requirements,testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design.Customers are responsible for their products and applications using TI components.To minimize the risks associated with customer products and applications,customers should provide adequate design and operating safeguards.TI does not warrant or represent that any license,either express or implied,is granted under any TI patent right,copyright,mask work right, or other TI intellectual property right relating to any combination,machine,or process in which TI products or services are rmation published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement e of such information may require a license from a third party under the patents or other intellectual property of the third party,or a license from TI under the patents or other intellectual property of TI.Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties,conditions,limitations,and notices.Reproduction of this information with alteration is an unfair and deceptive business practice.TI is not responsible or liable for such altered rmation of third parties may be subject to additional restrictions.Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice.TI is not responsible or liable for any such statements.TI products are not authorized for use in safety-critical applications(such as life support)where a failure of the TI product would reasonably be expected to cause severe personal injury or death,unless officers of the parties have executed an agreement specifically governing such use.Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications,and acknowledge and agree that they are solely responsible for all legal,regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications,notwithstanding any applications-related information or support that may be provided by TI.Further,Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or"enhanced plastic."Only products designated by TI as military-grade meet military specifications.Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk,and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS16949requirements.Buyers acknowledge and agree that,if they use any non-designated products in automotive applications,TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:Products ApplicationsAmplifiers AudioData Converters AutomotiveDLP®Products BroadbandDSP Digital ControlClocks and Timers MedicalInterface MilitaryLogic Optical NetworkingPower Mgmt SecurityMicrocontrollers TelephonyRFID Video&ImagingRF/IF and ZigBee®Solutions WirelessMailing Address:Texas Instruments,Post Office Box655303,Dallas,Texas75265Copyright©2009,Texas Instruments Incorporated。

AD转换器TLC2453与51单片机接口设计

TLC2543是TI公司的12位串行模数转换器，使用开关电容逐次逼近技术完成A/D转换过程。

由于是串行输入结构，能够节省51系列单片机I/O资源；且价格适中，分辨率较高，因此在仪器仪表中有较为广泛的应用。

2TLC2543的特点（1）12位分辩率A/D转换器；（2）在工作温度范围内10μs转换时间；（3）11个模拟输入通道；（4）3路内置自测试方式；（5）采样率为66kbps；（6）线性误差±1LSBmax；（7）有转换结束输出EOC；（8）具有单、双极性输出；（9）可编程的MSB或LSB前导；（10）可编程输出数据长度。

3TLC2543的引脚排列及说明TLC2543有两种封装形式：DB、DW或N封装以及FN封装，这两种封装的引脚排列如图1，引脚说明见表1。

图1TLC2543的封装4接口时序可以用四种传输方法使TLC2543得到全12位分辩率，每次转换和数据传递可以使用12或16个时钟周期。

一个片选（）脉冲要插到每次转换的开始处，或是在转换时序的开始处变化一次后保持为低，直到时序结束。

图2显示每次转换和数据传递使用16个时钟周期和在每次传递周期之间插入的时序，图3显示每次转换和数据传递使用16个时钟周期，仅在每次转换序列开始处插入一次时序。

表1TLC2543引脚说明5TLC2543在智能仪器仪表中的应用TLC2543是12位分辩率，与MAX186在功能上基本相同，但价格比MAX186低得多，因此TLC2543在便携式数据记录仪、医用仪器、电力检测仪表中具有广泛的应用。

下面主要讲述TLC2543在电力监控显示屏中的应用。

在电厂和变电站中，电网中的电压和电流由于多种原因常常处于波动状态，为了给工作人员提供有效数据，并在超值范围内采取有效措施，监测电网中电压和电流值是非常必要的。

该系统主要是采用TLC2543作A/D转换器，把电压和电流值转换成数字信号，GMS90C32作CPU，进行数字信号处理，PS7219作LED显示驱动器，把监测的电压和电流值显示出来，本文主要介绍TLC2543在电力监控显示屏中与单片机GMS90C32的接口部分，包括硬件和软件两部分。

TLC2543在波导损耗测量系统中的应用

摘要：文介绍了ｌ数模转换芯片ＴＣ５３光波导损耗测试系统中的具体应本２位Ｌ２４在
用。利用８Ｃ１９５单片机、ＴＣ５３Ｒ２２信接口构成的数据采集实时显示系统，Ｌ２４和Ｓ３通在波导损耗测量系统中具有易实现、易编程、精度高等优点，具有良好的推广价值。关键词：波导损耗；ＴＣ５３Ｌ２４；数据采集中图分类号：Ｔ２２文献标识码：ＡＮ５
（ｃｏｌｆｐｏｌｔｎｃｎｏｍａｉ，ＥＴ，ｈｎｄ１０４ＣｉａＳｈｏｏｔ－ｅｒｉＩｆｒｔｎＵＳＣＣｅｇｕ６０５，ｈｎ）Ｏｅｃｏｏ
ＡｂｔａｔＩｈａｅ，ｈａｔｕａｐｌａｉｆＬ２４，２ｉＡＤｃｎｅｔｒｃｉｉｓｒｃ：ｎｔｉｐｐｒｔｅｐｒｉｌａｐｉｔｎｏＣ５３ａ１ｂｔ／ｏｖｒｈｐｎａｓｃｒｃｏＴｅ
ｍｅｓｒｍｅｔｓｓｅｆｏｉａｔｅｕｔｏｎｖｇｕｄｓｐｅｅｔｄ．Ａａａａｑｉｉｉｎａｅｌｔｍｅａｕｅｎｙｔｍｏｐｔｃｌａｔｎａｉｎｉｗａｅｉｅｉｒｓｎｅｄｔｃｕｓｔｏｎｄｒａｉ
ｄｐａｙｔｍｉｃｎｔｕｔｄｏ９５ｉｇｈｐｍｉｏｏｕｅ，Ｌ２４Ｄｃｎｅｅｈｐｉｌｓｓｏｓｃｅｆ８Ｃ１ｓｌｃｉｃｃｍｐｔｒａＴＣ５３Ａ／ｏｖｒｒｉｓｙｅｓｒａｎｅｒｔｃ

TLC2543规格书

PACKAGING INFORMATIONOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)5962-9688601QRA ACTIVE CDIP J201TBD A42N/A for Pkg Type TLC2543CDB ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDBG4ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIM TLC2543CDBLE OBSOLETE SSOP DB20TBD Call TI Call TITLC2543CDBR ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDBRG4ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDW ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDWG4ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDWR ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CDWRG4ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543CFN ACTIVE PLCC FN2046Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CFNG3ACTIVE PLCC FN2046Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CFNR ACTIVE PLCC FN201000Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CFNRG3ACTIVE PLCC FN201000Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543CN ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeTLC2543CNE4ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeTLC2543IDB ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDBG4ACTIVE SSOP DB2070Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDBR ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDBRG4ACTIVE SSOP DB202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDW ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDWG4ACTIVE SOIC DW2025Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDWR ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IDWRG4ACTIVE SOIC DW202000Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMTLC2543IFN ACTIVE PLCC FN2046Green(RoHS&no Sb/Br)CU SN Level-1-260C-UNLIMTLC2543IFNG3ACTIVE PLCC FN2046Green(RoHS&CU SN Level-1-260C-UNLIMOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)no Sb/Br)TLC2543IFNR OBSOLETE PLCC FN20TBD Call TI Call TITLC2543IN ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeTLC2543INE4ACTIVE PDIP N2020Pb-Free(RoHS)CU NIPDAU N/A for Pkg Type TLC2543MJ ACTIVE CDIP J201TBD A42N/A for Pkg Type TLC2543MJB ACTIVE CDIP J201TBD A42N/A for Pkg Type (1)The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.(2)Eco Plan-The planned eco-friendly classification:Pb-Free(RoHS),Pb-Free(RoHS Exempt),or Green(RoHS&no Sb/Br)-please check /productcontent for the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.Pb-Free(RoHS):TI's terms"Lead-Free"or"Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all6substances,including the requirement that lead not exceed0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free(RoHS Exempt):This component has a RoHS exemption for either1)lead-based flip-chip solder bumps used between the die and package,or2)lead-based die adhesive used between the die and leadframe.The component is otherwise considered Pb-Free(RoHS compatible)as defined above.Green(RoHS&no Sb/Br):TI defines"Green"to mean Pb-Free(RoHS compatible),and free of Bromine(Br)and Antimony(Sb)based flame retardants(Br or Sb do not exceed0.1%by weight in homogeneous material)(3)MSL,Peak Temp.--The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications,and peak solder temperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary,and thus CAS numbers and other limited information may not be available for release.In no event shall 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TLC2543在89C51单片机数据采集系统中的应用[1]

T LC2543在89C51单片机数据采集系统中的应用ΞApplication of T LC2543in MCU Data Acquisition System姚　远1,王　赛2,凌毓涛1(1.华中师范大学信息技术系　湖北武汉430079;2.华中师范大学计算机科学系　湖北武汉430079)【摘　要】　介绍了单片机数据采集系统的硬件原理和软件设计。

该系统以89C51单片机为核心,以12位TLC2543为串行模数转换器,由MC14489构成采集数据实时显示系统,带有RS2232通信接口,系统具有易实现、易编程、可移植、体积小、功耗低等优点,具有良好的推广与应用价值。

关键词:TLC2543,单片机,数据采集【Abstract】　The paper introduces the hardware principle and the software design of the MCU data acquisition system based on89C51,in which the12bit TLC2543acts as the serial A/D converter and the RS2232as the communication interface,and the real2time displaying system is constructed by MC14489. The system has the advantages of easily realize,program and transplant,and it has the small volume and low power,etc..It is therefore very promising and valuable.K eyw ords:TLC2543,MCU,data acquisition1　T LC2543芯片介绍TLC2543是TI公司的具有11个通道的12位开关电容逐次逼近串行A/D转换器,采样率为66kbit/ s,采样和保持由片内采样保持电路自动完成。

TLC2543

摘要：TLC2543是德州仪器公司生产的12位开关电容型逐次逼近模数转换器,它具有三个控制输入端,采用简单的3线SPI串行接口可方便地与微机进行连接,是12位数据采集系统的最佳选择器件之一。

本文介绍了该芯片的功能、时序,并给出了8051单片机的接口电路。

关键词：模数转换器; SPI串行接口; TLC25431. 概述A/D、D/A转换器是过程及仪器仪表、设备等检测与控制装置中应用比较广泛的器件。

随着大规模集成电路技术的发展,各种高精度、低功耗、可编程、低成本的A/D转换器不断推出,使得微机控制系统的电路更加简洁,可靠性更高。

TLC2543与外围电路的连线简单,三个控制输入端为CS(片选)、输入/输出时钟(I/O CLOCK)以及串行数据输入端(DATA INPUT)。

片内的14通道多路器可以选择11个输入中的任何一个或3个内部自测试电压中的一个,采样－保持是自动的,转换结束,EOC输出变高。

TLC2543的主要特性如下：●11个模拟输入通道;●66ksps的采样速率;●最大转换时间为10μs;●SPI串行接口;●线性度误差最大为±1LSB;●低供电电流(1mA典型值);●掉电模式电流为4μA。

2. TLC2543引脚功能与接口时序2.1 TLC2543引脚排列TLC2543的引脚排列如图1所示。

引脚功能说明如下：AIN0～AIN10：模拟输入端,由内部多路器选择。

对4.1MHz的I/O CLOCK,驱动源阻抗必须小于或等于50Ω;CS：片选端,CS由高到低变化将复位内部计数器,并控制和使能DATA OUT、DATA INPUT 和I/O CLOCK。

CS由低到高的变化将在一个设置时间内禁止DATA INPUT和I/O CLOCK;DATA INPUT：串行数据输入端,串行数据以MSB为前导并在I/O CLOCK的前4个上升沿移入4位地址,用来选择下一个要转换的模拟输入信号或测试电压,之后I/O CLOCK将余下的几位依次输入;DATA OUT：A/D转换结果三态输出端,在CS为高时,该引脚处于高阻状态;当CS为低时,该引脚由前一次转换结果的MSB值置成相应的逻辑电平;EOC：转换结束端。

TLC2543 中文资料

TLC2543 中文资料TLC2543是TI公司的12位串行模数转换器，使用开关电容逐次逼近技术完成A/D转换过程。

由于是串行输入结构，能够节省51系列单片机I/O资源；且价格适中，分辨率较高，因此在仪器仪表中有较为广泛的应用。

2 TLC254 ...TLC2543是TI公司的12位串行模数转换器，使用开关电容逐次逼近技术完成A/D 转换过程。

由于是串行输入结构，能够节省51系列单片机I/O资源；且价格适中，分辨率较高，因此在仪器仪表中有较为广泛的应用。

2 TLC2543的特点（1）12位分辩率A/D转换器；（2）在工作温度范围内10μs转换时间；（3）11个模拟输入通道；（4）3路内置自测试方式；（5）采样率为66kbps；（6）线性误差±1LSBmax；（7）有转换结束输出EOC；（8）具有单、双极性输出；（9）可编程的MSB或LSB前导；（10）可编程输出数据长度。

3TLC2543的引脚图（管脚图）及说明TLC2543有两种封装形式：DB、DW或N封装以及FN封装，这两种封装的引脚排列如图1，引脚说明见表1。

表1 TLC2543引脚说明引脚号名称I/O 说明1～9,11,12 AIN0～AIN10 I 模拟量输入端。

11路输入信号由内部多路器选通。

对于4.1MHz的I/OCLOCK，驱动源阻抗必须小于或等于50Ω，而且用60pF电容来限制模拟输入电压的斜率15 I 片选端。

在端由高变低时，内部计数器复位。

由低变高时，在设定时间内禁止DATAINPUT和I/O CLOCK17 DATAINPUT I 串行数据输入端。

由4位的串行地址输入来选择模拟量输入通道16 DATA OUT O A/D转换结果的三态串行输出端。

为高时处于高阻抗状态，为低时处于激活状态19 EOC O 转换结束端。

在最后的I/OCLOCK下降沿之后，EOC从高电平变为低电平并保持到转换完成和数据准备传输为止10 GND 地。

关于TLC2543的总结

关于TLC2543的一些问题TLC2543是我调的第四个模块，严格意义上说第三个，因为A/D与D/A是相互配合使用的，在原理上有很多相同的地方。

比如逐次逼近式的A/D转换芯片，内部就存在一个D/A转换器。

总之二者在原理上有相通的地方，下面是我在调试芯片过程中遇到的一些问题：1、下面是它的管脚图以及结构框图：图1、TLC2543NC管脚图图2、2543的结构框图2、它有0~10共11个输入端口，也就是有11个通道，这11个通道是由DA TA IN的高四位决定的，而DA TA IN的低四位决定了是采用8位、12位还是16位数据输出格式，以及输出是单极性输出还是双极性输出，详见表1.需要注意的是这里的DATA IN并不是用于转换的输入数据，而是对输入通道，及一些相关格式的选择数据，相当于命令数据。

DATA OUT是一个串行的输出端，将输入的模拟量转换为数字量后，一位一位输出出来。

转换结束的信号是由EOC决定的，当它为低时表示转换结束，为高时表示正在转换，这里需要注意的是，现在转换的信号，并须在下一次有效输出信号来临时，才被输出；而当前输出的数据世上一次操作转换的结果，所以要输出当前的转换结果，至少要执行两次有效输出，才能得到正确结果。

表1、2543的输入数据功能表3、下面是2543在使用时的两种不同模式，一种是使用~CS端进行控制，一种是不使用。

很显然，第二种，2543时刻都被选通，时刻都在准备进行数据的转换，这样必然会有一定的功耗，所以如果能合理地设计~CS的选通状态，就可以减少电路的功耗。

同样的，还有以8位数据及16位数据格式输出，原理及时序图都与12位的相同，只有输出结果的位数不同，当然，相应的精度也就不同。

可根据具体需要，进行设置。

图3、采用12位输出数据并使用~CS时的序图图4、采用12位输出数据并不使用~CS时的序图。

TL2543

图3.5TLC2543芯片引脚图图3.6内部结构图3.6 TLC2543芯片引脚及内部结构TLC2543是德州仪器公司生产的12位开关电容型逐次逼近模数转换器，最大转换时间10us，11个模拟输入通道，3路内置自测试方式，采样率为66KSPS，线性误差±1LSBmax，有转换结束输出EOC，具有单极、双极性输出，可编程的MSB或LSB前导，可编程输出数据长度。

它具有三个控制输入端，采用简单三线SPI串行接口可方便的与微机进行连接，图3.5和图3.6分别是TLC2543的引脚排列图和内部结构图。

表3.2是TLC2543的引脚功能说明。

3.7 TLC2543的工作方式和输入通道的选择TLC2543是一个多通道和多工作方式的模数转换器件。

图3.5为其芯片引脚图，图3.6是它的内部结构图。

其工作方式和输入通道的选择是通过向TLC2543的控制寄存器写入一个八位的控制字来实现的。

这个八位控制字由四个部分组成：D7D6D5D4选择输入通道，D3D2选择输出数据长度，D1选择输出数据顺序，D0选择转换结果的极性。

八位控制字的各位的含义如表3.3所示。

主机以MSB为前导方式将控制字写入TLC2543的控制寄存器，每个数据位都是在CLOCK序列的上升沿被写入控制器。

表3.2引脚功能说明3.7.1 TLC2543的读写时序当片选信号/CS为高电平时，CLOCK和DATA-IN被禁止、DATA-OUT为高阻状态，以便SPI总线上的其它器件让出总线。

在片选信号/CS的下降沿，A/D转换结果的第一位数据出现在DATA-OUT引脚上，A/D转换结果的其他数据位在时钟信号CLOCK的下降沿被串行输出到DATA-OUT。

在片选信号/CS下降以后，时钟信号CLOCK的前八个上升沿将八位控制字从DATA_IN引脚串行输入到TLC2543的控制寄存器。

在片选信号/CS下降以后，经历8个(12个或16个)时钟信号完成对A/D转换器的一次读写。

TLC2543的特性

摘要介绍TI公司的TLC2543的特性，与51系列单片机的接口以及在仪器仪表中的应用。

关键词串行A/D应用1引言TLC2543是TI公司的12位串行模数转换器，使用开关电容逐次逼近技术完成A/D转换过程。

由于是串行输入结构，能够节省51系列单片机I/O资源；且价格适中，分辨率较高，因此在仪器仪表中有较为广泛的应用。

3TLC2543的引脚排列及说明TLC2543有两种封装形式：DB、DW或N封装以及FN封装，这两种封装的引脚排列如图1，引脚说明见表1。

图1TLC2543的封装i表1TLC2543引脚说明4接口时序可以用四种传输方法使TLC2543得到全12位分辩率，每次转换和数据传递可以使用12或16个时钟周期。

一个片选（）脉冲要插到每次转换的开始处，或是在转换时序的开始处变化一次后保持为低，直到时序结束。

图216时钟传送时序图（使用，MSB在前）图316时钟传送时序图（不使用，MSB在前）5TLC2543在智能仪器仪表中的应用TLC2543是12位分辩率，与MAX186在功能上基本相同，但价格比MAX186低得多，因此TLC2543在便携式数据记录仪、医用仪器、电力检测仪表中具有广泛的应用。

下面主要讲述TLC2543在电力监控显示屏中的应用。

12位TLC2543模数转换总结

Lcd_wcd(1,0x30+bai);
Lcd_wcd(1,0x2e);
Lcd_wcd(1,0x30+shi);
Lcd_wcd(1,0x30+ge);
Lcd_wcd(1,0x30+xiao);
/*for(i=0;i<SUM;i++)
{
temp1+=redad(0x01);//选择通道1，并读取AD转换的数
GND
地。GND是内部电路的地回路端。除另有说明外，所有电压测量都相对GND而言
18
I/O CLOCK
I
输入/输出时钟端。I/OCLOCK接收串行输入信号并完成以下四个功能：（1）在I/O CLOCK的前8个上升沿，8位输入数据存入输入数据寄存器。（2）在I/OCLOCK的第4个下降沿，被选通的模拟输入电压开始向电容器充电，直到I/OCLOCK的最后一个下降沿为止。（3）将前一次转换数据的其余11位输出到DATA OUT端，在I/OCLOCK的下降沿时数据开始变化。（4）I/OCLOCK的最后一个下降沿，将转换的控制信号传送到内部状态控制位
//uchar code dis1[]={"采集电压：000 v"};
/*************延时**************/
void delay(uint z)
{//一毫秒
uint y;
for(;z>0;z--)
for(y=110;y>0;y--) ;
}
void delay_us(uchar n)//微秒
shi=x/1000%10;
ge=x/100%10;
xiao=x/10%10;
}
/****************主函数****************/

TLC2543资料c语言

举例说明：设采集第6通道、输出数据为12位、高位先送出、输出数据的格式为二进制，则控制字为：0110 0000，用十六进制表示即为60H，本文基于此格式说明转换过程。
2.2TLC2543的内部寄存器
从编程角度看，TLC2543内部寄存器有输入数据寄存器与输出数据寄存器。输入数据寄存器存放从DATA INPUT端移入的控制字。输出数据寄存器存放转换好的数据，以供从DATA OUT端移出。
(4)控制字输入引脚
DATA TNPUT,17脚：控制字输入端，选择通道及输出数据格式的控制字由此输入。
(5)转换数据输出引脚
DATA OUT,16脚：A/D转换结果输出的3态串行输出端。
2TLC2543的编程要点
2.1控制字的格式
控制字为从DATA INPUT端串行输入TLC2543芯片内部的8位数据，它告诉TLC2543要转换的模拟量通道、转换后的输出数据长度、输出数据的格式。其中高4位(D7～D4)决定通道号，对于0通道至10通道，该4位分别为0000、0001、…、1010，该4位为其它数字时的功能，用于检测校正，本文不作具体介绍。低4位决定输出数据长度及格式，其中D3、D2决定输出数据长度，TLC2543的输出数据长度有8位、12位、16位，但由于TLC2543为12位A/D转换芯片，经过分析可以看出，8位、16位输出对TLC2543的应用意义不大，宜定在12位输出，D3、D2两位为00即可。D1决定输出数据是高位先送出，还是低位先送出，若为高位先送出，该位为0，反之为1。D0决定输出数据是单极性(二进制)还是双极性(2的补码)，若为单极性，该位为0，反之为1。
关键词：A/D转换；TLC2543芯片；51系列单片机；接口技术
中图法分类号：TP334.7文献识别码：B

串行A_D转换器TLC2543原理及应用

则转换数据的第一位即出现在 =>?> :@?A@? 管脚上，如图 ! 所示。
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TLC2543中文资料

串行A D转换器T L C2543中文资料T L C2543是T I公司的12位串行模数转换器，使用开关电容逐次逼近技术完成A/D转换过程。

由于是串行输入结构，能够节省51系列单片机I/O资源；且价格适中，分辨率较高，因此在仪器仪表中有较为广泛的应用。

2T L C2543的特点（1）12位分辩率A/D转换器；（2）在工作温度范围内10μs转换时间；（3）11个模拟输入通道；（4）3路内置自测试方式；（5）采样率为66k b p s；（6）线性误差±1L S B m a x；（7）有转换结束输出E O C；（8）具有单、双极性输出；（9）可编程的M S B或L S B前导；（10）可编程输出数据长度。

3T L C2543的引脚排列及说明T L C2543有两种封装形式：D B、D W或N封装以及F N封装，这两种封装的引脚排列如图1，引脚说明见表1。

图1T L C2543的封装4接口时序可以用四种传输方法使T L C2543得到全12位分辩率，每次转换和数据传递可以使用12或16个时钟周期。

一个片选（）脉冲要插到每次转换的开始处，或是在转换时序的开始处变化一次后保持为低，直到时序结束。

引脚号名称I/O说明1～9,11,12AIN0～AIN10I模拟量输入端。

11路输入信号由内部多路器选通。

对于4.1MHz的I/OCLOCK，驱动源阻抗必须小于或等于50Ω，而且用60pF电容来限制模拟输入电压的斜率15I片选端。

在端由高变低时，内部计数器复位。

由低变高时，在设定时间内禁止DATAINPUT和I/O CLOCK17DATAINPUT I串行数据输入端。

由4位的串行地址输入来选择模拟量输入通道16DATA OUT O A/D转换结果的三态串行输出端。

SPI串行接口AD转换器TLC2543

SPI串行接口AD转换器TLC2543的应用作者: 来源:mcuzb//-----------------------函数声明，变量定义--------------------------------------------------------#include <reg51.h>#include <intrins.h>//-------------------------------------------------------------------------------------------------- // 2543控制引脚宏定义//-------------------------------------------------------------------------------------------------- sbit SS1=P1^0; // 将p1.0口模拟片选sbit SCK=P1^1; // 将p1.1口模拟时钟输出sbit MOSI=P1^2; // 将p1.2口模拟主机输出sbit MISO=P1^3; // 将p1.3口模拟主机输入//-----------------------预定义控制字--------------------------------------------------------#define CONTROL_WORD 0x00 //选择通道0，输出数据长度12bit，MSB，单极性二进制数//-------------------------------------------------------------------------------------------------- // 函数名称：delay// 入口参数：N// 函数功能：延时子程序，实现(16*N+24)us的延时// 系统采用11.0592MHz的时钟时,延时满足要求,其它情况需要改动//-------------------------------------------------------------------------------------------------- void delay(unsigned int N){int i;for(i=0;i<N;i++);}//-------------------------------------------------------------------------------------------------- // 名称：read2543// 功能：TLC2543驱动模块// 输入参数：CON_WORD控制字// 输出参数：ad转换值//-------------------------------------------------------------------------------------------------- unsigned int read2543(unsigned char CON_WORD){unsigned int ad=0,i;SCK=0;SS1=0;for(i=0;i<12;i++){if(MISO) ad|=0x01;MOSI=(bit)(CON_WORD&0x80);SCK=1;delay(3);SCK=0;delay(3);CON_WORD<<=1;ad<<=1;}SS1=1;ad>>=1;return(ad);}//-------------------------------------------------------------------------------------------------- // 名称：main// 功能：主函数// 输入参数：无// 输出参数：无//--------------------------------------------------------------------------------------------------void main(){unsigned int ad;while(1){ad=read2543(CONTROL_WORD); }}。

TLC2543引脚、功能及时序中文资料转

TLC2543引脚、功能及时序中文资料(转)应用2010-01-26 10:03:30 阅读825 评论0 字号：大中小一、引脚：TLC2543为20脚DIP封装，引脚图如下图所示。

TLC2543具有4线制串行接口，分别为片选端(CS)，串行时钟输入端(I/O CLOCK)，串行数据输入端(DATA IN)和串行数据输出端(DATA OUT)。

它可以直接与SPI器件进行连接，不需要其他外部逻辑。

同时，它还在高达4MHz的串行速率下与主机进行通信。

TLC2543除了具有高速的转换速度外，片内还集成了14路多路开关。

其中n路为外部模拟量输入，3路为片内自测电压输入。

在转换结束后，EOC引脚变为高电平，转换过程中由片内时钟系统提供时钟，无需外部时钟。

在AD转换器空闲期间，可以通过编程方式进入断电模式，此时器件耗电只有25pA。

二、控制字：TLC2543的工作过程如下：首先在8、12或16时钟周期里向片内控制寄存器写入8位的控制字，控制字中的2位决定时钟长度，在最后一个时钟周期的下降沿启动AD转换过程，经过一段转换时间，在随后的8、12或16个时钟周期里，从DATA OUT脚读出数据。

控制字的定义见下表：控制字的前四位(D7-D4)代表11个模拟通道的地址；当其为1100-1110时，选择片内检测电压；当其为1111时，为软件选择的断电模式，此时，AD转换器的工作电流只有25uA.控制字的第3位和第4位(D3一D2)决定输出数据的长度，01表示输出数据长度为8位；11表示输出数据长度为16位；X1表示输出数据长度为12位，X可以为1或0。

控制字的第2位(D1)决定输出数据的格式，0表示高位在前，1表示低位在前。

控制字的第1位(D0)决定转换结果输出的格式。

当其为0时，为无极性输出(无符号二进制数)，即模拟电压为Vnef+，时，转换的结果为0FFFH；模拟电压为Vnef-时，转换的结果为0000H。

当其为1时，为有极性输出(有符号二进制数)，即模拟电压高于(Vnef+-Vnef-)/2时符号位为0；模拟电压低于(Vnef+-Vnef-)/2时符号位为1；模拟电压为Vnef+时，转换的结果为03FFH；模拟电压为Vnef-时，转换的结果为0800H。

关于tlc2543输入通道的解释和程序

书上和网上的相关程序很多，但是有一个问题大家可能会遇到，就是读出的数不是想要的通道的数值，我就谈谈这个的问题。

见网上有人问到TLC2543多路转换时出现通道之间串位的问题，我也遇到了，例如：输入的是通道0，读的数却是通道1，等等。

我分析了一下，出现问题的原因如下：书上印的、网上传的关于TLC2543转换输出12位的子函数的形参大多是uchar型的，如调取子函数：read(uchar port)。

调取子函数时以十六进制表示输入的通道数，如通道0为0x00，通道1为ox10等等，可是子函数里有一条是port<<=4;这让只有八位的uchar port向左移四位之后，原来的包含通道信息的高四位被舍弃，变为原来的低四位，通道数肯定不是你想要的那个通道了。

以uchar为形参，用十六进制表示通道数时去掉port<<=4;才是正确的。

如果你非要加上port<<=4;也可以，此时形参设定为uchar，那你就输入十进制的通道数，如通道0为0，通道1为1，如通道1，写为二进制是0001，那么port就是0000 0001，左移4位正好变为0001 0000，也是对的。

而偏偏有人输入的是十进制的通道数，再加上1条左移，那读出的数肯定就不对了。

如果设定通道变量为uint port，这时port为16位整型，port的高8位都是0，左移4位之后剩下的高4位仍然是0，此时余下的12位加上左移补上的4个0，12位输出的同时正好把前12位同步输入。

这个时候，左移4位这条指令也是必不可少的。

#include<reg52.h>#include<intrins.h>#define uint unsigned int#define uchar unsigned charsbit ADout=P1^0;sbit ADin=P1^1;sbit CS=P1^2;sbit CLK=P1^3;sbit EOC=P1^4;sbit LE1=P1^6;sbit LE2=P1^7;uchar duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x7c};uchar D=0,wei[]={0xfe,0xfd,0xfb,0xf7,0xdf,0xef};float k,z;uint n;//////////延时子函数void delay(uint us){uchar i;for(i=0;i<us;i++) _nop_();}////////数码管显示子函数void display(uint AD){uchar q,b,s,g; //////千位、百位、十位、个位q=AD/1000;b=AD/100%10;s=AD/10%10;g=AD%10;P0=0xff;LE1=1;P0=wei[0];LE1=0;LE2=1;P0=duan[q];LE2=0;delay(10);P0=0xff;LE1=1;P0=wei[1];LE1=0;LE2=1;P0=duan[b];LE2=0;delay(10);P0=0xff;LE1=1;P0=wei[2];LE1=0;LE2=1;P0=duan[s];LE2=0;delay(10);P0=0xff;LE1=1;P0=wei[3];LE1=0;LE2=1;P0=duan[g];LE2=0;delay(10);}///////TLC2543转换和读取子函数，只转换了三路模拟电压信号。