74HC126 데이터 시트보기 (PDF) - Philips Electronics
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74HC126 Datasheet PDF : 6 Pages
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Philips Semiconductors
Quad buffer/line driver; 3-state
Product specification
74HC/HCT126
PIN DESCRIPTION
PIN NO.
1, 4, 10, 13
2, 5, 9, 12
3, 6, 8, 11
7
14
SYMBOL
1OE to 4OE
1A to 4A
1Y to 4Y
GND
VCC
NAME AND FUNCTION
output enable inputs (active HIGH)
data inputs
data outputs
ground (0 V)
positive supply voltage
Fig.1 Pin configuration.
Fig.4 Functional diagram.
Fig.2 Logic symbol.
(a)
(b)
Fig.3 IEC logic symbol.
Fig.5 Logic diagram (one buffer).
FUNCTION TABLE
INPUTS
OUTPUT
nOE nA
nY
H
L
L
H
H
H
L
X
Z
Note
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
December 1990
3
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