CD54HCT374F3A

The Texas Instruments CD54HCT374F3A is a high-speed CMOS octal D-type flip-flop with 3-state outputs, engineered for military and high-reliability environments. Part of the HCT logic family, it integrates CMOS power efficiency with TTL-compatible input thresholds, simplifying interface to 5 V TTL systems. The device contains eight edge-triggered flip-flops sharing a common clock and an active-low output enable, and its 3-state outputs support bidirectional bus structures without external pull-ups. Housed in a hermetic ceramic dual in-line package (CDIP), the component operates reliably across the full military temperature range, delivering the noise immunity and deterministic timing required by mission-critical hardware.

Typical deployment includes data latching, register buffering, and bus interfacing in avionics computers, radar signal processing, navigation and guidance systems, and ruggedized industrial controllers where precise edge-sensitive capture is mandatory. The CDIP construction and military-grade qualification align with long-life defense and aerospace program requirements, but procurement specialists should monitor the mature HCT logic family for potential extended lead times and lifecycle management constraints. Authentic sourcing demands traceable authorized distribution and may involve export compliance steps, given the high-reliability designation and hermetic packaging associated with the CD54HCT series.