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SN74LVC257APWLE Datasheet(PDF) 4 Page - Texas Instruments

Part # SN74LVC257APWLE
Description  Quadruple 2-Line to 1-Line Data Selectors
PDF  30 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

SN74LVC257APWLE Datasheet(HTML) 4 Page - Texas Instruments

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3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
4B
NC
4Y
3A
1B
1Y
NC
2A
2B
1
16
8
9
2
3
4
5
6
7
15
14
13
12
11
10
OE
4A
4B
4Y
3A
3B
1A
1B
1Y
2A
2B
2Y
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A/B
1A
1B
1Y
2A
2B
2Y
GND
VCC
OE
4A
4B
4Y
3A
3B
3Y
SN54LVC257A, SN74LVC257A
SCAS294O – JANUARY 1993 – REVISED JUNE 2015
www.ti.com
6 Pin Configuration and Functions
D, DB, NS, J, W, or PW Package
RGY Package
16-Pin SOIC, SSOP, SO, CDIP, CFP, or TSSOP
16-Pin VQFN with Exposed Thermal Pad
Top View
Top View
FK Package
20-Pin LCCC
Top View
Pin Functions
PIN
SOIC, SSOP, SO,
I/O
DESCRIPTION
NAME
CDIP, CFP,
LCCC
TSSOP, or VQFN
A/B
1
2
I
Select Pin, Low selects A, High selects B
1A
2
3
I/O
Multiplexer Signal Input
1B
3
4
I/O
Multiplexer Signal Input
1Y
4
5
I/O
Multiplexer Output
2A
5
7
I/O
Multiplexer Signal Input
2B
6
8
I/O
Multiplexer Signal Input
2Y
7
9
I/O
Multiplexer Output
3A
11
14
I/O
Multiplexer Signal Input
3B
10
13
I/O
Multiplexer Signal Input
3Y
9
12
I/O
Multiplexer Output
4A
14
18
I/O
Multiplexer Signal Input
4B
13
17
I/O
Multiplexer Signal Input
4Y
12
15
I/O
Multiplexer Output
GND
8
10
—
Ground
NC(1)
—
1, 6, 11, 16
—
No connect
OE
15
19
I/O
Active low Output enable
VCC
16
20
—
Power pin
(1)
NC – no internal connection
4
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Copyright © 1993–2015, Texas Instruments Incorporated
Product Folder Links: SN54LVC257A SN74LVC257A



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