SNJ54BCT623J

Overview

The SNJ54BCT623J is an octal bus transceiver utilizing state-of-the-art BiCMOS technology, designed for asynchronous communication between data buses. It features bidirectional data transmission with dual output-enable inputs (OEAB and OEBA) that allow flexible timing control and true data outputs. The device supports simultaneous enabling of both directions to store data by reinforcing inputs when other sources are high impedance. Packaged in a 20-pin Ceramic Dual In-Line Package (CDIP), it is characterized for operation over the full military temperature range of -55 °C to 125 °C.

Feature Summary

• State-of-the-art BiCMOS design significantly reduces quiescent current
• Dual output-enable configuration allows data storage capability
• ESD protection exceeds 2000 V per MIL-STD-883C Method 3015

Applications

• Asynchronous communication between data buses
• Bidirectional bus driving applications requiring flexible timing
• Military systems operating within the -55 °C to 125 °C temperature range

Procurement Notes

Verify the specific ordering suffix 'J' corresponds to the ceramic DIP package and military temperature rating. Confirm RoHS status as indicated in packaging documentation. Ensure compatibility with system voltage requirements of 4.5 V to 5.5 V. Check lead finish specifications against assembly processes. Validate supply chain authenticity through authorized channels.

Selection Notes

Select this component for applications requiring octal bidirectional bus interfacing with low power consumption. The dual enable inputs provide isolation and data latching capabilities not found in single-enable devices. Consider the military temperature range if environmental conditions exceed commercial limits. Verify pinout compatibility with existing PCB layouts before integration.

Part Context

This part belongs to the Texas Instruments BCT series, which combines BiCMOS performance with CMOS compatibility. The 'SNJ' prefix denotes the military grade version in a ceramic package. It serves as a robust solution for high-reliability digital systems where signal integrity and low power are critical constraints.

Replacement Considerations

Direct replacements must match the octal bidirectional transceiver function, 20-pin CDIP package, and -55 °C to 125 °C operating range. Verify electrical characteristics such as output drive strength and propagation delays. Ensure control logic compatibility with OEAB and OEBA inputs.