SN74AVC16827资料
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FEATURES
DESCRIPTION
I OL - Output Current - mA
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I OH - Output Current - mA
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SN74AVC16827
20-BIT BUFFER/DRIVER
WITH3-STATE OUTPUTS
SCES176I–DECEMBER1998–REVISED JUNE2005
•Dynamic Drive Capability Is Equivalent to
Standard Outputs With I OH and I OL of±24mA •Member of the Texas Instruments Widebus™
at2.5-V V CC
Family
•Overvoltage-Tolerant Inputs/Outputs Allow •EPIC™(Enhanced-Performance Implanted
Mixed-Voltage-Mode Data Communications CMOS)Submicron Process
•I off Supports Partial-Power-Down Mode •DOC™(Dynamic Output Control)Circuit
Operation
Dynamically Changes Output Impedance,
Resulting in Noise Reduction Without Speed•Latch-Up Performance Exceeds100mA Per
Degradation JESD78,Class II
•Less Than2-ns Maximum Propagation Delay•Package Options Include Plastic Thin Shrink at2.5-V and3.3-V V CC Small-Outline(DGG)and Thin Very
Small-Outline(DGV)Packages
A Dynamic Output Control(DOC™)circuit is implemented,which,during the transition,initially lowers the output
impedance to effectively drive the load and,subsequently,raises the impedance to reduce noise.Figure1shows typical V OL vs I OL and V OH vs I OH curves to illustrate the output impedance and drive capability of the circuit.At the beginning of the signal transition,the DOC circuit provides a maximum dynamic drive that is equivalent to a high-drive standard-output device.For more information,refer to the TI application reports,AVC Logic Family Technology and Applications,literature number SCEA006,and Dynamic Output Control(DOC™)Circuitry Technology and Applications,literature number SCEA009.
Figure1.Output Voltage vs Output Current
This20-bit noninverting buffer/driver is operational at1.2-V to3.6-V V CC,but is designed specifically for1.65-V to
3.6-V V CC operation.
The SN74AVC16827is composed of two10-bit sections with separate output-enable signals.For either10-bit buffer section,the two output-enable(1OE1and1OE2or2OE1and2OE2)inputs must both be low for the corresponding Y outputs to be active.If either output-enable input is high,the outputs of that10-bit buffer section are in the high-impedance state.
To ensure the high-impedance state during power up or power down,OE should be tied to V CC through a pullup resistor;the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using I off.The I off circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
The SN74AVC16827is characterized for operation from–40°C to85°C.
Please be aware that an important notice concerning availability,standard warranty,and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus,EPIC,DOC are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date.Copyright©1998–2005,Texas Instruments Incorporated Products conform to specifications per the terms of the Texas
Instruments standard warranty.Production processing does not
necessarily include testing of all parameters.
元器件交易网
TERMINAL ASSIGNMENTS
DGG OR DGV PACKAGE
(TOP VIEW)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 2856 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29
1OE1 1Y1 1Y2 GND 1Y3 1Y4 V CC 1Y5 1Y6 1Y7 GND 1Y8 1Y9 1Y10 2Y1 2Y2 2Y3 GND 2Y4 2Y5 2Y6 V CC 2Y7 2Y8 GND 2Y9 2Y10 2OE11OE2 1A1 1A2 GND 1A3 1A4 V CC 1A5 1A6 1A7 GND 1A8 1A9 1A10 2A1 2A2 2A3 GND 2A4 2A5 2A6 V CC 2A7 2A8 GND 2A9 2A10 2OE2
SN74AVC16827
20-BIT BUFFER/DRIVER
WITH3-STATE OUTPUTS
SCES176I–DECEMBER1998–REVISED JUNE2005
FUNCTION TABLE
(EACH10-BIT BUFFER/DRIVER)
INPUTS OUTPUT
Y
OE1OE2A
L L L L
L L H H
H X X Z
X H X Z 2
元器件交易网
2OE22OE11OE21OE1
1A11A21A31A41A51Y11Y21Y31Y41Y5
1A61A71A81A91A101Y61Y71Y81Y91Y102A12A22A32A42A52Y12Y22Y32Y42Y52A62A72A82A92A10
2Y62Y72Y82Y92Y10
(1) This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1Y12A1
2Y1
2OE1
2OE2
To Nine Other Channels To Nine Other Channels
SN74AVC16827
20-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
SCES176I–DECEMBER 1998–REVISED JUNE 2005
LOGIC SYMBOL (1)
LOGIC DIAGRAM (POSITIVE LOGIC)
3
元器件交易网
Absolute Maximum Ratings (1)
Recommended Operating Conditions
SN74AVC16827
20-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES176I–DECEMBER 1998–REVISED JUNE 2005
over operating free-air temperature range (unless otherwise noted)
MIN
MAX UNIT V CC Supply voltage range –0.5 4.6V V I Input voltage range (2)
–0.5 4.6V V O Voltage range applied to any output in the high-impedance or power-off state (2)–0.5 4.6V V O Voltage range applied to any output in the high or low state (2)(3)–0.5
V CC +0.5
V I IK Input clamp current V I <0–50mA I OK Output clamp current V O <0
–50mA I O
Continuous output current
±50mA Continuous current through each V CC or GND
±100mA DGG package 64θJA Package thermal impedance (4)°C/W DGV package
48T stg Storage temperature range
–65
150
°C
(1)Stresses beyond those listed under "absolute maximum ratings"may cause permanent damage to the device.These are stress ratings only,and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions"is not implied.Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.(2)The input negative-voltage and output ratings may be exceeded if the input and output current ratings are observed.(3)This value is limited to 4.6V maximum.
(4)
The package thermal impedance is calculated in accordance with JESD 51.
MIN
MAX UNIT V CC
Supply voltage
1.2 3.6
V
V CC =1.2V V CC
V CC =1.4V to 1.6V
0.65×V CC V IH
High-level input voltage
V CC =1.65V to 1.95V 0.65×V CC
V
V CC =2.3V to 2.7V 1.7V CC =3V to 3.6V 2
V CC =1.2V GND V CC =1.4V to 1.6V
0.35×V CC V IL
Low-level input voltage
V CC =1.65V to 1.95V 0.35×V CC
V V CC =2.3V to 2.7V 0.7V CC =3V to 3.6V
0.8V I Input voltage 0 3.6V Active state 0V CC V O
Output voltage
V 3-state
0 3.6V CC =1.4V to 1.6V
–2V CC =1.65V to 1.95V –4I OHS
Static high-level output current (1)
mA V CC =2.3V to 2.7V –8V CC =3V to 3.6V –12V CC =1.4V to 1.6V
2V CC =1.65V to 1.95V 4I OLS
Static low-level output current (1)
mA V CC =2.3V to 2.7V 8V CC =3V to 3.6V
12∆t/∆v Input transition rise or fall rate V CC =1.4V to 3.6V
5ns/V T A Operating free-air temperature
–4085
°C (1)
Dynamic drive capability is equivalent to standard outputs with I OH and I OL of ±24mA at 3.3-V V CC .See Figure 1for V OL vs I OL and V OH vs I OH characteristics.Refer to the TI application reports,AVC Logic Family Technology and Applications ,literature number SCEA006,and Dynamic Output Control (DOC™)Circuitry Technology and Applications ,literature number SCEA009.
4
元器件交易网
Electrical Characteristics
Switching Characteristics Switching Characteristics(1) Operating Characteristics
SN74AVC16827
20-BIT BUFFER/DRIVER
WITH3-STATE OUTPUTS SCES176I–DECEMBER1998–REVISED JUNE2005
over recommended operating free-air temperature range(unless otherwise noted)
PARAMETER TEST CONDITIONS V CC MIN TYP(1)MAX UNIT
I OHS=–100µA,V IH=V CC 1.4V to3.6V V CC–0.2
I OHS=–2mA,V IH=0.91V 1.4V 1.05
V OH I OHS=–4mA,V IH=1.07V 1.65V 1.2V
I OHS=–8mA,V IH=1.7V 2.3V 1.75
I OHS=–12mA,V IH=2V3V 2.3
I OLS=100µA 1.4V to3.6V0.2
I OLS=2mA,V IL=0.49V 1.4V0.4
V OL I OLS=4mA,V IL=0.57V 1.65V0.45V
I OLS=8mA,V IL=0.7V 2.3V0.55
I OLS=12mA,V IL=0.8V3V0.7
I I V I=V CC or GND 3.6V±2.5µA I off V I or V O=3.6V0±10µA I OZ V O=V CC or GND,V IH=V CC 3.6V±12.5µA
I CC V I=V CC or GND,I O=0 3.6V40µA
2.5V4
Control inputs V I=V CC or GND
3.3V4
C i pF
2.5V 2.5
Data inputs V I=V CC or GND
3.3V 2.5
2.5V 6.5
C o Outputs V O=V CC or GN
D pF
3.3V 6.5
(1)Typical values are measured at T A=25°C.
over recommended operating free-air temperature range(unless otherwise noted)(see Figure2through Figure5)
V CC=1.5V V CC=1.8V V CC=2.5V V CC=3.3V
V CC=1.2V
FROM TO±0.1V±0.15V±0.2V±0.3V PARAMETER UNIT (INPUT)(OUTPUT)
TYP MIN MAX MIN MAX MIN MAX MIN MAX t pd A Y30.4 3.20.9 2.90.8 1.90.5 1.7ns t en OE Y8.7 2.39.1 2.18 1.4 5.6 1.2 5.1ns t dis OE Y7.5 2.78.3 2.57.30.9 4.91 4.7ns
T A =0°C to85°C,C
L
=0pF
V CC=3.3V
FROM TO±0.15V PARAMETER UNIT
(INPUT)(OUTPUT)
MIN MAX t pd A Y0.090.67ns
(1)Texas Instruments SPICE simulation data
T
A
=25°C
V CC=1.8V V CC=2.5V V CC=3.3V
PARAMETER TEST CONDITIONS UNIT
TYP TYP TYP
Outputs enabled313540 Power dissipation
C pd C L=0,f=10MHz pF
capacitance Outputs disabled666
5元器件交易网
PARAMETER MEASUREMENT INFORMATION
V OH V OL
From Output Under Test
C L LOA
D CIRCUIT
Open Output Control (low-level enabling)
Output Waveform 1S1 at 2 × V CC (see Note B)
Output Waveform 2S1 at GND (see Note B)0 V
0 V
V CC 0 V
0 V
V CC
V CC
VOLTAGE WAVEFORMS SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS PULSE DURATION
VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES
Timing Input
Data Input
Input
t pd t PLZ /t PZL t PHZ /t PZH
Open 2 × V CC GND
TEST S1NOTES: A.C L includes probe and jig capacitance.
B.Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.C.All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z O = 50 Ω, t r ≤ 2 ns, t f ≤ 2 ns.D.The outputs are measured one at a time, with one transition per measurement.E.t PLZ and t PHZ are the same as t dis .F.t PZL and t PZH are the same as t en .G.t PLH and t PHL are the same as t pd .
0 V
V CC
Input
Output
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
× V CC
V CC
SN74AVC16827
20-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES176I–DECEMBER 1998–REVISED JUNE 2005
V CC =1.2V AND 1.5V ±0.1V
Figure 2.Load Circuit and Voltage Waveforms
6
元器件交易网
PARAMETER MEASUREMENT INFORMATION
V OH
V OL C L LOAD CIRCUIT
Open Output Control (low-level enabling)
Output Waveform 1S1 at 2 × V CC (see Note B)
Output Waveform 2S1 at GND (see Note B)0 V
0 V
V CC 0 V
0 V
V CC
V CC
VOLTAGE WAVEFORMS SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS PULSE DURATION
VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES
Timing Input
Data Input
Input
t pd t PLZ /t PZL t PHZ /t PZH
Open 2 × V CC GND
TEST S1NOTES: A.C L includes probe and jig capacitance.
B.Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.C.All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z O = 50 Ω, t r ≤ 2 ns, t f ≤ 2 ns.D.The outputs are measured one at a time, with one transition per measurement.E.t PLZ and t PHZ are the same as t dis .F.t PZL and t PZH are the same as t en .G.t PLH and t PHL are the same as t pd .
0 V
V CC
Input
Output
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
× V CC V CC
SN74AVC16827
20-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
SCES176I–DECEMBER 1998–REVISED JUNE 2005
V CC =1.8V ±0.15V
Figure 3.Load Circuit and Voltage Waveforms
7
元器件交易网
PARAMETER MEASUREMENT INFORMATION
V OH
V OL C L LOAD CIRCUIT
Open Output Control (low-level enabling)
Output Waveform 1S1 at 2 × V CC (see Note B)
Output Waveform 2S1 at GND (see Note B)0 V
0 V
V CC 0 V
0 V
V CC
V CC
VOLTAGE WAVEFORMS SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS PULSE DURATION
VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES
Timing Input
Data Input
Input
t pd t PLZ /t PZL t PHZ /t PZH
Open 2 × V CC GND
TEST S1NOTES: A.C L includes probe and jig capacitance.
B.Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.C.All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z O = 50 Ω, t r ≤ 2 ns, t f ≤ 2 ns.D.The outputs are measured one at a time, with one transition per measurement.E.t PLZ and t PHZ are the same as t dis .F.t PZL and t PZH are the same as t en .G.t PLH and t PHL are the same as t pd .
0 V
V CC
Input
Output
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
× V CC
V CC
SN74AVC16827
20-BIT BUFFER/DRIVER
WITH 3-STATE OUTPUTS
SCES176I–DECEMBER 1998–REVISED JUNE 2005
V CC =2.5V ±0.2V
Figure 4.Load Circuit and Voltage Waveforms
8
元器件交易网
PARAMETER MEASUREMENT INFORMATION
V OH V OL
C L LOA
D CIRCUIT × V CC
Open Output Control (low-level enabling)
Output Waveform 1S1 at 2 × V CC (see Note B)
Output Waveform 2S1 at GND (see Note B)
0 V
0 V
V CC
0 V
0 V
V CC
0 V
V CC
V CC
V CC
VOLTAGE WAVEFORMS SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS PULSE DURATION
VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES
Timing Input
Data Input
Input
t pd t PLZ /t PZL t PHZ /t PZH
Open 2 × V CC GND
TEST S1NOTES: A.C L includes probe and jig capacitance.
B.Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.C.All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z O = 50 Ω, t r ≤ 2 ns, t f ≤ 2 ns.D.The outputs are measured one at a time, with one transition per measurement.E.t PLZ and t PHZ are the same as t dis .F.t PZL and t PZH are the same as t en .G.t PLH and t PHL are the same as t pd .
SN74AVC16827
20-BIT BUFFER/DRIVER WITH 3-STATE OUTPUTS
SCES176I–DECEMBER 1998–REVISED JUNE 2005
V CC =3.3V ±0.3V
Figure 5.Load Circuit and Voltage Waveforms
9
元器件交易网
PACKAGING INFORMATION
Orderable Device Status (1)Package Type Package Drawing Pins Package Qty Eco Plan (2)
Lead/Ball Finish MSL Peak Temp (3)74AVC16827DGGRE4ACTIVE TSSOP DGG 562000Green (RoHS &
no Sb/Br)CU NIPDAU Level-1-260C-UNLIM 74AVC16827DGVRE4ACTIVE TVSOP DGV 562000Green (RoHS &
no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AVC16827DGGR ACTIVE TSSOP DGG 562000Green (RoHS &
no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AVC16827DGVR
ACTIVE
TVSOP
DGV
56
2000Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
(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)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 all 6substances,including the requirement that lead not exceed 0.1%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.
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 exceed 0.1%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.
PACKAGE OPTION ADDENDUM
5-Sep-2005
Addendum-Page 1
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元器件交易网
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