SNJ54LS393FK

The Texas Instruments SNJ54LS393FK is a dual 4-bit binary counter integrated circuit. It belongs to the LS (Low-power Schottky) technology family and offers high-speed operation with propagation delays typically between 10-50ns. Each package contains eight master-slave flip-flops and additional gating to implement two independent four-bit binary counters, each with a clear and a clock input. This design allows for the implementation of N-bit binary counters, providing a capability of divide-by-256. The SNJ54LS393FK is rated for a military operating temperature range of -55°C to 125°C. It is available in LCCC (FK), CFP (W), and CDIP (J) package types. The dual 4-bit versions can significantly improve system densities by reducing counter package count by 50%. Buffered outputs reduce the possibility of collector commutation.

This component is suitable for applications requiring precise counting and division functions within demanding environmental conditions. Its architecture supports flexible counter configurations, making it adaptable for various digital systems. The high-speed performance and military-grade rating make it a reliable choice for critical applications.