
Absolute Maximum Ratings (Note 1)
Supply Voltage (VCC)b0.5V to a7.0V
DC Input Voltage (VIN)b0.5V to a7.0V
DC Output Voltage (VOUT)b0.5V to VCC a0.5V
Input Diode Current (IIK)b20 mA
Output Diode Current (IOK)g20 mA
DC Output Current (IOUT)g25 mA
DC VCC/GND Current (ICC)g50 mA
Storage Temperature (TSTG)b65§Ctoa
150§C
Lead Temperature (TL)
(Soldering, 10 seconds) 260§C
Note 1:
Absolute Maximum Ratings are values beyond
which the device may be damaged or have its useful life
impaired. The databook specifications should be met, with-
out exception, to ensure that the system design is reliable
over its power supply, temperature, and output/input load-
ing variables. National does not recommend operation out-
side databook specifications.
Recommended Operating
Conditions
Supply Voltage (VCC) 2.0V to a5.5V
Input Voltage (VIN)0Vto
a
5.5V
Output Voltage (VOUT) 0VtoV
CC
Operating Temperature (TOPR)
74VHC b40§Ctoa
85§C
DC Characteristics for ’VHC Family Devices
Symbol Parameter VCC
(V)
74VHC 74VHC
Units Conditions
TAe25§CT
A
eb
40§C
to a85§C
Min Typ Max Min Max
VIH High Level 2.0 1.70 1.70 V
Input Voltage 3.0–5.5 0.8 VCC 0.8 VCC
VIL Low Level 2.0 0.30 0.30 V
Input Voltage 3.0–5.5 0.20 VCC 0.20 VCC
VOH High Level 2.0 1.8 2.0 1.8 VIN eVIL IOH eb
50 mA
Output Voltage 3.0 2.7 3.0 2.7 V
4.5 4.0 4.5 4.0
3.0 2.58 2.48 VVIN eGND IOH eb
4mA
4.5 3.94 3.80 IOH eb
8mA
V
OL Low Level 2.0 0.0 0.2 0.2 VIN eVIH IOL e50 mA
Output Voltage 3.0 0.0 0.3 0.3 V
4.5 0.0 0.5 0.5
3.0 0.36 0.44 VVIN eVCC IOL e4mA
4.5 0.36 0.44 IOL e8mA
I
IN Input Leakage 0–5.5 g0.1 g1.0 mAV
IN e5.5V or GND
Current
ICC Quiescent 5.5 2.0 20.0 mAV
IN eVCC or GND
Supply Current
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