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| 型号： | IN74HC138 |
| 厂商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| 中文描述： | 1 - 8解码器/解复用器高性能硅栅CMOS |
| 文件页数： | 1/5页 |
| 文件大小： | 103K |
| 代理商： | IN74HC138 |
TECHNICAL DATA
141
1-of-8 Decoder/Demultiplexer
High-Performance Silicon-Gate CMOS
The IN74HC138A is identical in pinout to the LS/ALS138. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The IN74HC138A 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
High Noise Immunity Characteristic of CMOS Devices
IN74HC138A
ORDERING INFORMATION
IN74HC138AN Plastic
IN74HC138AD SOIC
T
A
= -55
°
to 125
°
C for all packages
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
Outputs
CS1 CS2 CS3
A2 A1 A0
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
X X H
X H X
L X X
X X X
X X X
X X X
H 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 L
H L L
H L L
H L L
L L L
L L H
L H L
L 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 L L
H L L
H L L
H L L
H L L
H L H
H H L
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 = high level (steady state)
L = low level (steady state)
X = don’t care
LOGIC DIAGRAM
PIN 16 =V
CC
PIN 8 = GND
相关PDF资料 |
PDF描述 |
|---|---|
| IN74HC138A | 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| IN74HC138AN | 1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| IN74HC139A | Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| IN74HC14A | Hex Schmitt-Trigger Inverter High-Performance Silicon-Gate CMOS |
| IN74HC14AD | Hex Schmitt-Trigger Inverter High-Performance Silicon-Gate CMOS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IN74HC138A | 制造商:INTEGRAL 制造商全称:INTEGRAL 功能描述:1-of-8 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| IN74HC138AD | 制造商:IKSEMICON 制造商全称:IK Semicon Co., Ltd 功能描述:1-of-8 Decoder/Demultiplexer |
| IN74HC138AN | 制造商:IKSEMICON 制造商全称:IK Semicon Co., Ltd 功能描述:1-of-8 Decoder/Demultiplexer |
| IN74HC139A | 制造商:INTEGRAL 制造商全称:INTEGRAL 功能描述:Dual 1-of-4 Decoder/Demultiplexer High-Performance Silicon-Gate CMOS |
| IN74HC139AD | 制造商:IKSEMICON 制造商全称:IK Semicon Co., Ltd 功能描述:Dual 1-of-4 Decoder/Demultiplexer |
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