The TC74VHC74 is an advanced high speed CMOS D - FLIP
FLOP fabricated with silicon gate CEMOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation.
The signal level applied to the D INPUT is transferred to Q
OUTPUT during the positive going transition of the CK
pulse.
CLR and PR are independent of the CK and are
accomplished by setting the appropriate input low.
An input protection circuit ensures that 0 to 7V can be
applied to the input pins without regard to the supply
voltage. This device can be used to interface 5V to 3V
systems and two supply systems such as battery back up.
This circuit prevents device destruction due to mismatched
supply and input voltages.

FEATURES:
• High Speed...
fMAX=170MHz(typ.)
• Low Power Dissipation
at Vcc=5V
Icc=2/A(Max.) at Ta = 25°C
VNIH VNIL = 28% Vcc (Min.)
• Power Down Protection is provided on all inputs.
• High Noise Immunity
Balanced Propagation Delays tpLH=tpHL
• Wide Operating Voltage Range: Vcc (opr) = 2V~5.5V
• Pin and Function Compatible with 74ALS74