SDFS077A - D2932, MARCH 1987 - REVISED OCTOBER 1993
These 8-bit flip-flops feature 3-state outputs designedspecifically for driving highly capacitive or relativelylow-impedance loads. They are particularly suitable for implementingbuffer registers, I/O ports, bidirectional bus drivers, and workingregisters.
The eight flip-flops of the ´F374 are edge-triggered D-typeflip-flops. On the positive transition of the clock (CLK) input, theQ outputs are set to the logic levels that were set up at the data(D) inputs.
A buffered output enable (
) input can be used to place the eight outputs in eithera normal logic state (high or low) or a high-impedance state. In thehigh-impedance state, the outputs neither load nor drive the buslines significantly. The high-impedance state and the increased driveprovide the capability to drive bus lines without need for interfaceor pullup components.
The output enable ()input does not affect internal operations of the flip-flop. Old datacan be retained or new data can be entered while the outputs are inthe high-impedance state.
The SN74F374 is available in TI's shrink small-outline package(DB), which provides the same I/O pin count and functionality ofstandard small-outline packages in less than half theprinted-circuit-board area.
The SN54F374 is characterized for operation over the full militarytemperature range of -55°C to 125°C. The SN74F374 ischaracterized for operation from 0°C to 70°C.
View more information about generic part numbers:SN54F374, SN74F374
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