74HC125 Philips, 74HC125 Datasheet - Page 3

• Manufacturer Part Number: 74HC125
• Description: Quad buffer/line driver 3-state
• Manufacturer: Philips

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
outputs enable inputs (active LOW)
data inputs
data outputs
ground (0 V)
positive supply voltage
3
(a)
Fig.3 IEC logic symbol.
FUNCTION TABLE
Note
1. H = HIGH voltage level
nOE
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
H
L
L
INPUTS
74HC/HCT125
Product specification
nA
H
L
X
(b)
OUTPUT
nY
H
L
Z