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參數(shù)資料
| 型號： | IN74HCT138AN |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | Octal Registered Transceivers With 3-State Outputs 24-PDIP -40 to 85 |
| 中文描述： | 1 - 8譯碼器/解復(fù)用器 |
| 文件頁數(shù)： | 1/5頁 |
| 文件大?。?/td> | 144K |
| 代理商： | IN74HCT138AN |
IN74HCT138A
1
1-
OF
-8
D
ECODER
/D
EMULTIPLEXER
High-Performance Silicon-Gate CMOS
The IN74HCT138A is identical in pinout to the LS/ALS138.
The IN74HCT138A may be used as a level converter for
interfacing TTL or NMOS outputs to High Speed CMOS inputs.
The IN74HCT138A decodes a three-bit Address to one-of-
eight active-lot outputs. This device features three Chip Select
inputs, two active-low and one active-high to facilitate the
demultiplexing, cascading, and chip-selecting functions. The
demultiplexing function is accomplished by using the Address
inputs to select the desired device output; one of the Chip
Selects is used as a data input while the other Chip Selects are
held in their active states.
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0
μ
A
ORDERING INFORMATION
IN74HCT138AN Plastic
IN74HCT138AD SOIC
T
A
= -55
°
to 125
°
C for all
packages
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
Outputs
CS1 CS2 CS3
X X H
X H X
L X X
H L L
H L L
H L L
H L L
H L L
H L L
H L L
H L L
H = high level (steady state)
L = low level (steady state)
X = don’t care
A2 A1 A0
X X X
X X X
X X X
L L L
L L H
L H L
L H H
H L L
H L H
H H L
H H H
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
H H H H H H H H
H H H H H H H H
H H H H H H H H
L H H H H H H H
H L H H H H H H
H H L H H H H H
H H H L H H H H
H H H H L H H H
H H H H H L H H
H H H H H H L H
H H H H H H H L
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IN74HCT139A | Octal Registered Transceivers With 3-State Outputs 24-PDIP -40 to 85 |
| IN74HCT139AD | DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| IN74HCT139AN | Octal Transparent D-Type Latches With 3-State Outputs 20-TSSOP -40 to 85 |
| IN74HCT14A | HEX SCHMITT-TRIGGER INVERTER |
| IN74HCT14AD | HEX SCHMITT-TRIGGER INVERTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IN74HCT139A | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| IN74HCT139AD | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:DUAL 1-OF-4 DECODER/DEMULTIPLEXER |
| IN74HCT139AN | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| IN74HCT14A | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:HEX SCHMITT-TRIGGER INVERTER |
| IN74HCT14AD | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:HEX SCHMITT-TRIGGER INVERTER |
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