Functional Description
• Octal D-Type Flip Flop with 3-State Outputs
General
The 74HC374D is a high speed CMOS OCTAL FLIP-FLOP with 3-STATE OUTPUT fabricated with silicon gate
C2MOS technology.
It achieves the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power
dissipation.
These 8-bit D-type flip-flops are controlled by a clock input (CK) and an output enable input (OE).
When the input is high, the eight outputs are in a high impedance state.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features
(1) High speed: fMAX = 90 MHz (typ.) at VCC = 6.0 V
(2) Low power dissipation: ICC = 4.0 μA (max) at Ta = 25 
(3) Balanced propagation delays: tPLH ≈ tPHL
(4) Wide operating voltage range: VCC(opr) = 2.0 V to 6.0 V