DESCRIPTION

· The TC74VHC74 is a high-speed CMOS dual D-type flip-flop with preset and clear, fabricated using silicon gate C2MOS technology.
· It operates at speeds comparable to Bipolar Schottky TTL while maintaining low power dissipation.
· The D input signal is transferred to the Q output during the positive transition of the CK pulse.
· CLR and PR inputs are independent of CK and are activated by setting the appropriate input low.
· Input protection allows 0 to 5.5 V to be applied to input pins regardless of supply voltage.
· Suitable for interfacing 5 V to 3 V systems and battery backup applications.

FEATURES

· High speed: f max = 170 MHz (typ.) at V CC = 5 V.
· Low power dissipation: I CC = 2 μA (max) at Ta = 25°C.
· High noise immunity: V NIH = VNIL = 28% V CC (min).
· Power down protection on all inputs.
· Balanced propagation delays: t pLH ∼ − tpHL.
· Wide operating voltage range: V CC (opr) = 2 V to 5.5 V.
· Pin and function compatible with 74ALS74.

APPLICATIONS

· Suitable for high-speed digital systems.
· Ideal for low-power applications.
· Can be used in systems requiring interfacing between 5 V and 3 V.
· Useful in battery backup systems.
· Ensures device protection in mismatched supply and input voltage scenarios.