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參數(shù)資料
| 型號(hào)： | IN74AC138 |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | 1-OF-8 DECODER/DEMULTIPLEXER High-Speed Silicon-Gate CMOS |
| 中文描述： | 1 - 8譯碼器/解復(fù)用器高速硅柵CMOS |
| 文件頁數(shù)： | 1/5頁 |
| 文件大小： | 164K |
| 代理商： | IN74AC138 |
IN74AC138
1
1-
OF
-8
D
ECODER
/D
EMULTIPLEXER
High-Speed Silicon-Gate CMOS
The IN74AC138 is identical in pinout to the LS/ALS138,
HC/HCT138. The device inputs are compatible with standard
CMOS outputs; with pullup resistors, they are compatible with
LS/ALS outputs.
The IN74AC138 decodes a three-bit Address to one-of-eight
active-low 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.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0
μ
A; 0.1
μ
A @ 25
°
C
High Noise Immunity Characteristic of CMOS Devices
Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74AC138N Plastic
IN74AC138D SOIC
T
A
= -40
°
to 85
°
C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IN74AC193 | PRESETTABLE 4 - BIT BINARY UP / DOWN COUNTER HIGH - SPEED SILICON - GATE CMOS |
| IN74AC193D | PRESETTABLE 4 - BIT BINARY UP / DOWN COUNTER HIGH - SPEED SILICON - GATE CMOS |
| IN74AC193N | PRESETTABLE 4 - BIT BINARY UP / DOWN COUNTER HIGH - SPEED SILICON - GATE CMOS |
| IN74AC20 | DUAL 4-INPUT NAND GATE High-Speed Silicon-Gate CMOS |
| IN74AC20D | DUAL 4-INPUT NAND GATE High-Speed Silicon-Gate CMOS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IN74AC138D | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:1-of-8 Decoder/Demultiplexer High-Speed Silicon-Gate CMOS |
| IN74AC138N | 制造商:IKSEMICON 制造商全稱:IK Semicon Co., Ltd 功能描述:1-of-8 Decoder/Demultiplexer High-Speed Silicon-Gate CMOS |
| IN74AC139 | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:Dual 1-of-4 Decoder/Demultiplexer High-Speed Silicon-Gate CMOS |
| IN74AC139D | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:Dual 1-of-4 Decoder/Demultiplexer High-Speed Silicon-Gate CMOS |
| IN74AC139N | 制造商:INTEGRAL 制造商全稱:INTEGRAL 功能描述:Dual 1-of-4 Decoder/Demultiplexer High-Speed Silicon-Gate CMOS |
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