MM74HCT74

  The MM74HCT74 utilizes advanced silicon-gate CMOS technology to achieve operation speeds similar to the equivalent LS-TTL part. It possesses the high noise immu-nity and low power consumption of standard CMOS inte-grated 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 compati-ble with the standard 74LS logic family. All inputs are pro-tected from damage due to static discharge by internal diode clamps to V  and ground.

  MM74HCT devices are intended to interface between TTL and NMOS components and standard CMOS devices.These parts are also plug-in replacements for LS-TTL devices and can be used to reduce power consumption in existing designs.