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74LVC257APW Datasheet(PDF) 3 Page - NXP Semiconductors

Part # 74LVC257APW
Description  Quad 2-input multiplexer with 5 Volt tolerant inputs/outputs 3-State
PDF  10 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74LVC257APW Datasheet(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVC257A
Quad 2-input multiplexer with 5 Volt tolerant
inputs/outputs (3-State)
1998 Jul 29
3
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
FUNCTION
1
S
Common data select input
2, 5, 11, 14
1l0 to 4l0
Data inputs from source 0
3, 6, 10, 13
1l1 to 4l1
Data outputs from source 1
4, 7, 9, 12
1Y to 4Y
3-State multiplexer outputs
8
GND
Ground (0 V)
15
OE
3-State output enable input (active
LOW)
16
VCC
Positive supply voltage
LOGIC SYMBOL (IEEE/IEC)
SV00638
EN
G1
15
1
7
4
9
12
6
5
3
2
MUX
1
11
10
14
13
1
FUNCTIONAL DIAGRAM
SV00639
OE
S
SELECTOR
3–STATE
MULTIPLEXER
OUTPUTS
1I0
1Y
2Y
3Y
4Y
1I1
2I0
2I1
3I0
3I1
4I0
4I1
115
7
4
9
12
6
5
2
3
11
10
14
13
FUNCTION TABLE
INPUTS
OUTPUTS
OE
S
nl0
nl1
nY
H
X
X
X
Z
L
H
X
L
L
L
H
X
H
H
L
L
L
X
L
L
L
H
X
H
NOTES:
H =
HIGH voltage level
L
=
LOW voltage level
X =
don’t care
Z =
high impedance OFF-state
LOGIC DIAGRAM
SV00640
OE
1Y
2Y
3Y
4Y
1I1
1I0
2I1
2I0
3I1
3I0
4I1
4I0
S



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