74HC/HCT126 Philips Semiconductors (Acquired by NXP), 74HC/HCT126 Datasheet - Page 3
74HC/HCT126
Manufacturer Part Number
74HC/HCT126
Description
Quad Buffer/line Driver; 3-state
Manufacturer
Philips Semiconductors (Acquired by NXP)
Datasheet
1.74HCHCT126.pdf
(6 pages)
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