8-bit D-type register with master reset — military-grade bus latch
The SN54LS377WB is an 8-bit D-type flip-flop with master reset, positive-edge triggered, non-inverted outputs. Clock frequency is 40 MHz. Output high is 8 mA, output low is 400 µA.
40 MHz clock and 27 ns propagation delay — timing margin on a 5 V bus
Clock frequency is 40 MHz. Max propagation delay is 27 ns at 5 V and 15 pF. Quiescent current is 28 mA.
20-CFlatpack — hermetic surface-mount for harsh environments
The 20-CFlatpack is a ceramic, hermetic surface-mount package. Unlike plastic SOIC or TSSOP, the ceramic body resists moisture absorption and thermal shock, making it suitable for military avionics, satellite payloads, downhole tools, and other sealed or high-vibration assemblies. The flat leads require a reflow profile compatible with ceramic — typically a slower ramp rate than plastic packages to avoid thermal stress. Board layout should follow the supplier device package footprint for the 20-CFlatpack; lead pitch is standard for this form factor.