74LV125_3 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 03 — 7 April 2009 3 of 15
NXP Semiconductors
74LV125
Quad buffer/line driver; 3-state
5.2 Pin description
6. Functional description
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For DIP14 packages: above 70 °C the value of P
tot
derates linearly with 12 mW/K.
For SO14 packages: above 70 °C the value of P
tot
derates linearly with 8 mW/K.
For (T)SSOP14 packages: above 60 °C the value of P
tot
derates linearly with 5.5 mW/K.
Table 2. Pin description
Symbol Pin Description
1
OE, 2OE, 3OE, 4OE, 1, 4, 10, 13 output enable input (active LOW)
1A, 2A, 3A, 4A 2, 5, 9, 12 data input
1Y, 2Y, 3Y, 4Y 3, 6, 8, 11 data output
GND 7 ground (0 V)
V
CC
14 supply voltage
Table 3. Function table
[1]
Control Input Output
nOE nA nY
LLL
LHH
HXZ
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage −0.5 +7.0 V
I
IK
input clamping current V
I
< −0.5 V or V
I
>V
CC
+ 0.5 V
[1]
- ±20 mA
I
OK
output clamping current V
O
< −0.5 V or V
O
>V
CC
+ 0.5 V
[1]
- ±50 mA
I
O
output current V
O
= −0.5 V to (V
CC
+ 0.5 V) - ±35 mA
I
CC
supply current - 70 mA
I
GND
ground current −70 - mA
T
stg
storage temperature −65 +150 °C
P
tot
total power dissipation T
amb
= −40 °C to +125 °C
[2]
DIP14 - 750 mW
SO14, SSOP14, TSSOP14 - 500 mW
