MM74HCT74 Datasheet PDF - Fairchild

General Description

●The MM74HCT74 utilizes advanced silicon-gate CMOS technology to achieve operation speeds similar to the equivalent LS-TTL part. It possesses the high noise immunity and low power consumption of standard CMOS integrated circuits, along with the ability to drive 10 LS-TTL loads.

●This flip-flop has independent data, preset, clear, and clock inputs and Q and Q outputs. The logic level present at the data input is transferred to the output during the positive-going transition of the clock pulse. Preset and clear are independent of the clock and accomplished by a low level at the appropriate input.

●The 74HCT logic family is functionally and pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.

●Features

●■ Typical propagation delay: 20ns

●■ Low quiescent current: 40µA maximum (74HCT Series)

●■ Low input current: 1µA maximum

●■ Fanout of 10 LS-TTL loads

●■ Meta-stable hardened