NXP Semiconductors
74HC125; 74HCT125
Quad buffer/line driver; 3-state
5.2 Pin description
Table 2.
Symbol
1OE, 2OE, 3OE, 4OE
1A, 2A, 3A, 4A
1Y, 2Y, 3Y, 4Y
GND
V
CC
Pin description
Pin
1, 4, 10, 13
2, 5, 9, 12
3, 6, 8, 11
7
14
Description
output enable input (active LOW)
data input
data output
ground (0 V)
supply voltage
6. Functional description
Table 3.
Control
nOE
L
H
[1]
Function table
Input
nA
L
H
X
Output
nY
L
H
Z
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
P
tot
Parameter
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
DIP14 package
SO14 and (T)SSOP14
packages
[1]
[2]
Conditions
V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V
V
O
<
0.5
V or V
O
> V
CC
+ 0.5 V
V
O
=
0.5
V to (V
CC
+ 0.5 V)
Min
0.5
-
-
-
-
-
65
-
-
Max
+7
20
20
35
+70
70
+150
750
500
Unit
V
mA
mA
mA
mA
mA
C
mW
mW
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For DIP14 package: P
tot
derates linearly with 12 mW/K above 70
C.
For SO14 package: P
tot
derates linearly with 8 mW/K above 70
C.
For (T)SSOP14 packages: P
tot
derates linearly with 5.5 mW/K above 60
C.
74HC_HCT125
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 4 — 10 January 2013
3 of 17
PHILIPS [ NXP SEMICONDUCTORS ]
