74HC/HCT126 Philips Semiconductors (Acquired by NXP), 74HC/HCT126 Datasheet - Page 3

• Manufacturer Part Number: 74HC/HCT126
• Description: Quad Buffer/line Driver; 3-state
• Manufacturer: Philips Semiconductors (Acquired by NXP)

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