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M74HCT125
2/9
INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION
TRUTH TABLE
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
(*) 500mW at 65
°C; derate to 300mW by 10mW/°C from 65°C to 85°C
RECOMMENDED OPERATING CONDITIONS
PIN No SYMBOL NAME AND FUNCTION
1, 4, 10, 13 1G
TO 4G Output Enable Input
2, 5, 9, 12 1A TO 4A Data Inputs
3, 6, 8, 11 1Y TO 4Y Data Outputs
7 GND Ground (0V)
14
V
CC
Positive Supply Voltage
AG
Y
XHZ
LLL
HLH
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.5 to +7 V
V
I
DC Input Voltage -0.5 to V
CC
+ 0.5
V
V
O
DC Output Voltage -0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
± 20 mA
I
OK
DC Output Diode Current
± 20 mA
I
O
DC Output Current
± 35 mA
I
CC
or I
GND
DC V
CC
or Ground Current
± 70 mA
P
D
Power Dissipation
500(*) mW
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Symbol Parameter Value Unit
V
CC
Supply Voltage
4.5 to 5.5 V
V
I
Input Voltage 0 to V
CC
V
V
O
Output Voltage 0 to V
CC
V
T
op
Operating Temperature
-55 to 125 °C
t
r
, t
f
Input Rise and Fall Time (V
CC
= 4.5 to 5.5V)
0 to 500 ns
