參數(shù)資料
型號: MC74AC139D
廠商: MOTOROLA INC
元件分類: 通用總線功能
英文描述: DUAL 1-OF-4 DECODER/DEMULTIPLEXER
中文描述: AC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
封裝: PLASTIC, SOIC-16
文件頁數(shù): 1/6頁
文件大小: 180K
代理商: MC74AC139D
5-1
FACT DATA
The MC74AC139/74ACT139 is a high-speed, dual 1-of-4 decoder/demultiplexer.
The device has two independent decoders, each accepting two inputs and providing
four mutually-exclusive active-LOW outputs. Each decoder has an active-LOW
Enable input which can be used as a data input for a 4-output demultiplexer. Each
half of the MC74AC139/74ACT139 can be used as a function generator providing
four minterms of two variables.
Multifunction Capability
Two Completely Independent 1-of-4 Decoders
Active LOW Mutually Exclusive Outputs
Outputs Source/Sink 24 mA
ACT139 Has TTL Compatible Inputs
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
Eb
A0b
A1b
Ea
GND
O0b
O1b
O2b
O3b
A0a
A1a
O0a
O1a
O2a
O3a
PIN NAMES
A0, A1
E
O0–O3
Address Inputs
Enable Inputs
Outputs
TRUTH TABLE
Inputs
Outputs
E
A0
X
L
H
L
H
A1
X
L
L
H
H
O0
H
L
H
H
H
O1
H
H
L
H
H
O2
H
H
H
L
H
O3
H
H
H
H
L
H
L
L
L
L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
DUAL 1-OF-4
DECODER/DEMULTIPLEXER
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
E
A0
A1
O0O1O2O3
DECODER a
LOGIC SYMBOL
E
A0
A1
O0O1O2O3
DECODER b
相關PDF資料
PDF描述
MC74ACT139D DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74ACT139DR2 DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74ACT139DT DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74ACT139N DUAL 1-OF-4 DECODER/DEMULTIPLEXER
MC74AC139N DUAL 1-OF-4 DECODER/DEMULTIPLEXER
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