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74F525 Datasheet, PDF (6/10 Pages) National Semiconductor (TI) – Programmable Counter
Absolute Maximum Ratings (Note 1)
Storage Temperature
b65 C to a150 C
Ambient Temperature under Bias
b55 C to a125 C
Junction Temperature under Bias
Plastic
b55 C to a175 C
b55 C to a150 C
VCC Pin Potential to
Ground Pin
b0 5V to a7 0V
Input Voltage (Note 2)
b0 5V to a7 0V
Input Current (Note 2)
b30 mA to a5 0 mA
Voltage Applied to Output
in HIGH State (with VCC e 0V)
Standard Output
TRI-STATE Output
b0 5V to VCC
b0 5V to a5 5V
Current Applied to Output
in LOW State (Max)
twice the rated IOL (mA)
Note 1 Absolute maximum ratings are values beyond which the device may
be damaged or have its useful life impaired Functional operation under
these conditions is not implied
Note 2 Either voltage limit or current limit is sufficient to protect inputs
Recommended Operating
Conditions
Free Air Ambient Temperature
Commercial
0 C to a70 C
Supply Voltage
Commercial
a4 5V to a5 5V
DC Electrical Characteristics
Symbol
Parameter
74F
Units VCC
Min Typ Max
Conditions
VIH
Input HIGH Voltage
20
VIL
Input LOW Voltage
VCD
Input Clamp Diode Voltage
VOH
Output HIGH
Voltage
74F 10% VCC 2 5
74F 5% VCC
27
VOL
Output LOW
Voltage
74F 10% VCC
V
Recognized as a HIGH Signal
08
V
Recognized as a LOW Signal
b1 2
V
Min IIN e b18 mA
V
Min IOH e b1 mA
IOH e b1 mA
05
V
Min IOL e 20 mA
IIH
Input HIGH
74F
Current
50
mA
Max VIN e 2 7V
IBVI
Input HIGH Current 74F
Breakdown Test
70
mA
Max VIN e 7 0V
ICEX
Output HIGH
74F
Leakage Current
50
mA
Max VOUT e VCC
VID
Input Leakage
74F
4 75
Test
V
00
IID e 1 9 mA
All Other Pins Grounded
IOD
Output Leakage
74F
Circuit Current
3 75
mA
00
VIOD e 150 mV
All Other Pins Grounded
IIL
IOS
ICCH
ICCL
Input LOW Current
Output Short-Circuit Current
Power Supply Current
Power Supply Current
b0 6
mA
Max VIN e 0 5V (D0 – D15)
b1 2
VIN e 0 5V (CP XTR)
b60
b150
mA
Max VOUT e 0V
106 160
mA Max VO e HIGH
106 160
mA Max VO e LOW
6