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CD74ACT157M датащи(PDF) 3 Page - Texas Instruments

номер детали CD74ACT157M
подробное описание детали  CD74ACT157 Quadruple 2-Line to 1-Line Data Selector/Multiplexer
PDF  32 Pages
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производитель  TI2 [Texas Instruments]
домашняя страница  https://www.ti.com
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CD74ACT157M датащи(HTML) 3 Page - Texas Instruments

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4 Pin Configuration and Functions
1A
1B
1Y
2A
2B
2Y
GND
G
4A
4B
4Y
3A
3Y
3B
PAD
A/B
V
CC
2
3
4
5
6
7
8
15
14
13
12
11
10
9
1
16
Figure 4-1. CD74ACT157 BQB Package (Top View)
1
2
3
7
4
5
6
14
13
12
8
11
10
9
GND
4A
4Y
3A
V
CC
15
16
A/B
1A
1B
1Y
2A
2B
G
3Y
4B
3B
2Y
Figure 4-2. CD74ACT157 D , N , PW Package (Top
View)
Pin Functions
PIN
TYPE(1)
DESCRIPTION
NAME
NO.
A/B
1
I
Address select
1A
2
I
Channel 1, data input A
1B
3
I
Channel 1, data input B
1Y
4
I
Channel 1, data output
2A
5
O
Channel 2, data input A
2B
6
O
Channel 2, data input B
2Y
7
I
Channel 2, data output
GND
8
G
Ground
3Y
9
I
Channel 3, data output
3B
10
I
Channel 3, data input B
3A
11
I
Channel 3, data input A
4Y
12
I
Channel 4, data output
4B
13
I
Channel 4, data input B
4A
14
I
Channel 4, data input A
G
15
I
Output strobe, active low
VCC
16
P
Positive supply
Thermal Pad(2)
—
The thermal pad can be connected to GND or left floating. Do not connect to any other
signal or supply.
(1)
Signal Types: I = Input, O = Output, G = Ground, P = Power.
(2)
BQB package only.
www.ti.com
CD74ACT157
SCHS340D – MARCH 2003 – REVISED JULY 2025
Copyright © 2025 Texas Instruments Incorporated
Submit Document Feedback
3
Product Folder Links: CD74ACT157



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