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SN74HC139DRG4中文资料

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SN54HC139, SN74HC139DUAL 2ĆLINE TO 4ĆLINE DECODERS/DEMULTIPLEXERS

SCLS108D − DECEMBER 1982 − REVISED SEPTEMBER 2003

1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

DTargeted Specifically for High-Speed

Memory Decoders and Data-TransmissionSystemsDWide Operating Voltage Range of 2 V to 6 V

DOutputs Can Drive Up To 10 LSTTL Loads

DLow Power Consumption, 80-µA Max I

CC

DTypical t

pd = 10 ns

D±4-mA Output Drive at 5 V

DLow Input Current of 1 µA Max

DIncorporate Two Enable Inputs to Simplify

Cascading and/or Data Reception

description/ordering informationThe ’HC139 devices are designed forhigh-performance memory-decoding ordata-routing applications requiring very shortpropagation delay times. In high-performancememory systems, these decoders can minimizethe effects of system decoding. When employedwith high-speed memories utilizing a fast enablecircuit, the delay time of these decoders and theenable time of the memory usually are less thanthe typical access time of the memory. This meansthat the effective system delay introduced by thedecoders is negligible.

ORDERING INFORMATIONTAPACKAGE†PACKAGE†ORDERABLEPART NUMBERTOP-SIDEMARKING

PDIP − NTube of 25SN74HC139NSN74HC139NTube of 40SN74HC139DReel of 2500SN74HC139DRSOIC − DReel of 250SN74HC139DTHC139

°°SOP − NSReel of 2000SN74HC139NSRHC139−40C to 85CSSOP − DBReel of 2000SN74HC139DBRHC139Tube of 90SN74HC139PWReel of 2000SN74HC139PWRTSSOP − PWReel of 250SN74HC139PWTHC139

CDIP − JTube of 25SNJ54HC139JSNJ54HC139J°°CFP − WTube of 150SNJ54HC139WSNJ54HC139W−55C to 125CLCCC − FKTube of 55SNJ54HC139FKSNJ54HC139FK†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

32120199101112134

5678

1817161514

2A2BNC2Y02Y1

1B1Y0NC1Y11Y2

1A1GNC2Y32Y2V2G

1Y3GND

NC

SN54HC139...FK PACKAGE(TOP VIEW)

CC

NC − No internal connection

12345678161514131211109

1G1A1B1Y01Y11Y21Y3GNDVCC2G2A2B2Y02Y12Y22Y3

SN54HC139...J OR W PACKAGESN74HC139...D, DB, N, NS, OR PW PACKAGE(TOP VIEW)

Copyright  2003, Texas Instruments IncorporatedPRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily includetesting of all parameters.

On products compliant to MILĆPRFĆ38535, all parameters are tested

unless otherwise noted. On all other products, productionprocessing does not necessarily include testing of all parameters.

元器件交易网www.cecb2b.comSN54HC139, SN74HC139DUAL 2ĆLINE TO 4ĆLINE DECODERS/DEMULTIPLEXERS

SCLS108D − DECEMBER 1982 − REVISED SEPTEMBER 2003

2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

description/ordering information (continued)The ’HC139 devices comprise two individual 2-line to 4-line decoders in a single package. The active-low enable(G) input can be used as a data line in demultiplexing applications. These decoders/demultiplexers feature fullybuffered inputs, each of which represents only one normalized load to its driving circuit.

FUNCTION TABLEINPUTSSELECTOUTPUTS

GBAY0Y1Y2Y3

HXXHHHHLLLLHHHLLHHLHHLHLHHLHLHHHHHL

logic diagram (positive logic)

1G1Y0

1Y11Y21Y32Y02Y12Y22Y3

1A1B

2G2A2BPin numbers shown are for the D, DB, J, N, NS, PW, and W packages.

123

151413

45671211109

元器件交易网www.cecb2b.comSN54HC139, SN74HC139DUAL 2ĆLINE TO 4ĆLINE DECODERS/DEMULTIPLEXERS

SCLS108D − DECEMBER 1982 − REVISED SEPTEMBER 2003

3POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†Supply voltage range, VCC −0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous output current, IO (VO = 0 to VCC) ±25 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous current through VCC or GND ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Package thermal impedance, θJA (see Note 2):D package 73°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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MC74HC139A 双1-到-4解码器 多路解复用器 CMOS 芯片说明书

MC74HC139A 双1-到-4解码器 多路解复用器 CMOS 芯片说明书

© Semiconductor Components Industries, LLC, 2001June, 2001 – Rev. 81Publication Order Number:

MC74HC139A/D

MC74HC139ADual 1-of-4 Decoder/Demultiplexer

High–Performance Silicon–Gate CMOSThe MC74HC139A is identical in pinout to the LS139. The deviceinputs are compatible with standard CMOS outputs; with pull–upresistors, they are compatible with LSTTL outputs.This device consists of two independent 1–of–4 decoders, each ofwhich decodes a two–bit Address to one–of–four active–low outputs.Active–low Selects are provided to facilitate the demultiplexing andcascading functions. The demultiplexing function is accomplished byusing the Address inputs to select the desired device output, andutilizing the Select as a data input.

•Output Drive Capability: 10 LSTTL Loads

•Outputs Directly Interface to CMOS, NMOS and TTL

SN74LS139N中文资料

SN74LS139N中文资料


4
5
6
7
12 11 10 9
VCC = PIN 16 GND = PIN 8
4
5
6
7
12
11
10
9
O0a
O1a
O2a
O3a
O0b
O1b
O2b
ቤተ መጻሕፍቲ ባይዱ
O3b
FAST AND LS TTL DATA 5-235
元器件交易网
SN54/74LS139
FUNCTIONAL DESCRIPTION The LS139 is a high speed dual 1-of-4 decoder/demultiplexer fabricated with the Schottky barrier diode process. The device has two independent decoders, each of which accept two binary weighted inputs (A0, A1) and provide four mutually exclusive active LOW outputs (O0 – O3). Each decoder has an active LOW Enable (E). When E is HIGH all outputs are forced HIGH. The enable can be used as the data input for a 4-output demultiplexer application. Each half of the LS139 generates all four minterms of two variables. These four minterms are useful in some applications, replacing multiple gate functions as shown in Fig. a, and thereby reducing the number of packages required in a logic network.
74HC04中文资料_数据手册_参数

74HC04中文资料_数据手册_参数


Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
MM74HC04SJ
M14D Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Units
ns ns ns ns ns ns pF
pF
3

MM74HC04
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M14A
Output Voltage
|IOUT| ≤ 20 µA
2.0V
2.0
1.9
1.9
4.5V
4.5
4.4
4.4
1.9
V
4.4
V
6.0V
6.0
5.9
5.9
5.9
V
VIN = VIL
|IOUT| ≤ 4.0 mA
|IOUT| ≤ 5.2 mA
VOL
Maximum LOW Level VIN = VIH
Output Voltage
Input Voltage
2.0V 4.5V
1.5
1.5
3.15
3.ห้องสมุดไป่ตู้5
1.5
V
3.15
V
6.0V
74hc14中文资料

74hc14中文资料

74HC14中文资料74HC14的作用：六反相斯密特触发器真值表：Y=AInput输入output输出A YL HH L图1引脚功能极限参数：Supply Voltage电源电压7VInput Voltage输入电压7VOperating Free Air Temperature Range自由空气温度范围0℃to+70℃Storage Temperature Range储存温度范围-65℃to+150℃Recommended Operating Conditions建议操作条件Symbol 符号Parameter参数最小典型最大UNIT单位VCC Supply Voltage电源电压 4.755 5.25V VT+Positive-Going Input Threshold Voltage正向输入阈值电压(Note2)1.4 1.6 1.9VVT-Negative-Going Input Threshold Voltage反向输入阈值电压(Note2)0.50.81VHYS Input Hysteresis输入滞后(Note2)0.40.8-V IOH HIGH Level Output Current高电平输出电流---0.4mA IOL LOW Level Output Current低电平输出电流--8mA TA Free Air Operating Temperature工作温度0-70℃Note2:VCC=5V.Electrical Characteristics电气特性over recommended operating free air temperature range(unless otherwise noted)Symbol 符号Parameter参数Conditions条件最小典型最大UNIT单位VI Input Clamp Voltage输入钳位电压VCC=最小,II=-18mA---1.5VVOH HIGH Level Output Voltage输出高电平电压VCC=最小,IOH=最大VIL=最大2.73.4-VVOL LOW Level输出低电平电压VCC=最小,IOL=最大-0.350.5--Output Voltage输出电压VIH=最小---V VCC=最小,IOL=4mA-0.250.4IT+Input Current at Positive-GoingThreshold正向阈值输入电流VCC=5V,VI=VT+--0.14-mAIT-Input Current at Negative-GoingThreshold反向阈值输入电流VCC=5V,VI=VT---0.18-mAII Input Current@MAX Input Voltage输入电流@最大输入电压VCC=最大,VI=7V--0.1mAIIH HIGH Level Input Current输入高电平电流VCC=最大,VI=2.7V--20μAIIL LOW Level Input Current输入低电平电流VCC=最大,VI=0.4V---0.4mAIOS Short Circuit Output Current短路输出电流VCC=最大(Note4)-20--100mAICCH Supply Current with Out puts HIGH高电平输出电源电流VCC=最大-8.616mAICCL Supply Current with Outputs LOW低电平输出电源电流VCC=最大-1221mANote3:VCC=5V,TA=25℃.Note4:Not more than one output should be shorted at a time,and the duration should not exceed one second.Switching Characteristics开关特性at VCC=5V and TA=25℃Switching Characteristics开关特性at VCC=5V and TA=25℃Symbol 符号Parameter参数RL=2kΩUNIT单位CL=15pF CL=50pF最小最大最小最大tPLH Propagation Delay Time LOW-to-HIGH Level Output低到高电平输出传递延迟时间522825nstPHL Propagation Delay Time HIGH-to-LOW Level Output高到低电平输出传递延迟时间5221033ns应用电路：图2光电藕合器接收整形电路图3方波振荡器。