參數(shù)資料
型號(hào): MC74F157A
廠商: Motorola, Inc.
英文描述: QUAD 2-INPUT MULTIPLEXER
中文描述: 四2輸入多路復(fù)用器
文件頁(yè)數(shù): 1/2頁(yè)
文件大小: 57K
代理商: MC74F157A
4-67
FAST AND LS TTL DATA
QUAD 2-INPUT MULTIPLEXER
The MC74F157A is a high-speed quad 2-input multiplexer. Four bits of data
from two sources can be selected using the common Select and Enable in-
puts. The four buffered outputs present the selected data in the true (non-in-
verted) form. The F157A can also be used to generate any four of the 16 differ-
ent functions to two variables.
AC Enhanced Version of the F157
Zc
CONNECTION DIAGRAM DIP
(TOP VIEW)
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
E
I0c
I1c
Zc
I0d
I1d
Zd
S
I0a
I1a
Za
I0b
I1b
Zb
GND
LOGIC DIAGRAM
I0a
I1a
I0b
I0c
I1b
I1c
I0d
S
E
I1d
Za
Zb
Zd
FUNCTION TABLE
Inputs
Output
E
S
I0
X
I1
X
Z
H
X
L
L
H
X
L
L
L
H
X
H
H
L
L
L
X
L
L
L
H
X
H
H = HIGH Voltage Level; L = LOW Voltage Level; X = Don’t Care
MC74FXXXJ
MC74FXXXN
MC74FXXXD
Ceramic
Plastic
SOIC
MC74F157A
QUAD 2-INPUT
MULTIPLEXER
FAST
SHOTTKY TTL
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
12
13
11
14
15
2
3
5
6
1
4
7
10
9
Za
Zb
Zc
Zd
I1a
I0b
I1b
I0a
E
I0c
I1c
I0d
I1d
VCC = PIN 16
GND = PIN 8
S
相關(guān)PDF資料
PDF描述
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