CD4027BF3A

The CD4027BF3A is a military-grade CMOS dual J-K master-slave flip-flop manufactured by Texas Instruments, belonging to the CD4027B logic family and supplied in a 16-pin ceramic dual in-line package (CDIP). This device integrates two independent flip-flops with complementary Q and Q̅ outputs, individual set and reset functions, and a shared clock input for edge-triggered operation. Typical of the 4000-series CMOS technology, it supports a wide supply voltage range from 3V to 18V and delivers high noise immunity, low quiescent current, and fully static logic levels. The hermetic ceramic package and military temperature range rating ensure robust performance under extreme environmental stress, making the part suitable for high-reliability systems where deterministic toggling and data storage are critical.

Typical applications include timing generation, frequency division, shift register stages, and latching control logic within aerospace guidance, defense communications, and industrial automation equipment. The part is frequently deployed in mission-critical embedded systems where signal integrity and long-term stability under temperature cycling or mechanical shock are mandatory. From a procurement perspective, the “F3A” suffix denotes a military processing flow, likely in accordance with MIL-STD-883 or equivalent screening, elevating the component’s traceability and reliability pedigree. As with many legacy CMOS logic devices in ceramic packages, availability may be constrained by limited production runs or pending end-of-life notices. Design and supply chain teams should confirm active life cycle status and consider qualification of alternative military-grade logic families or approved second-source manufacturers to mitigate obsolescence risk.