CD54HC244F3A

The CD54HC244F3A is a high-speed CMOS octal buffer/line driver with 3-state outputs, manufactured by Texas Instruments. This device belongs to the 54HC logic family, rated for operation over the full military temperature range of -55°C to +125°C, and is enclosed in a hermetically sealed ceramic dual-in-line package (CDIP). It provides eight non-inverting buffer channels with three-state outputs controlled by two active-low output enable pins, enabling bidirectional bus driving and enhanced signal fan-out. HC-series components operate across a supply voltage range of 2 V to 6 V, combining low static power dissipation with balanced propagation delays and high noise immunity, characteristics that support reliable performance in electrically demanding environments.

Typical deployment scenarios include mission-critical defense electronics, aerospace flight systems, missile guidance, and ruggedized industrial controllers where data integrity must persist under severe temperature, vibration, and shock. The part commonly serves in memory address driving, clock distribution, and data bus buffering within high-reliability embedded designs. As a military-grade logic element housed in a CDIP package, it is frequently procured against MIL-PRF-38535 standards or /883 equivalent screening flows, which impose rigorous qualification and lot traceability. Procurement specialists should assess long-term availability with authorized sources, as military logic families, despite extended Texas Instruments support, may periodically undergo obsolescence notices. Hermetic ceramic packages are also increasingly targeted by counterfeit operations in the aftermarket, making supply-chain authentication a critical consideration for sustainment and new design buys.