SNJ54BCT646FK

Overview

The SNJ54BCT646FK is a military-grade octal bus transceiver and register featuring three-state outputs, manufactured by Texas Instruments. It utilizes BCT technology to ensure TTL-voltage compatibility while maintaining low power consumption. The device operates within a temperature range of -55°C to 125°C and is housed in a 28-lead ceramic flatpack (FK) package. Key electrical characteristics include a typical propagation delay of 12 ns and an output drive capability of ±6 mA at 5 V.

Feature Summary

• Octal bus transceiver functionality with registered data storage capabilities
• Three-state outputs for effective bus line driving and isolation
• TTL-voltage compatible inputs for broad interface interoperability
• Military-grade construction designed for extreme environmental reliability

Applications

• High-reliability military communication systems requiring robust signal buffering
• Aerospace computing architectures utilizing wide temperature operational ranges
• Industrial control networks necessitating isolated bidirectional data transfer
• Defense electronics demanding radiation-hardened or high-stability logic components

Procurement Notes

Verify the specific suffix FK against official Texas Instruments documentation to confirm the 28-lead ceramic flatpack package configuration. Ensure the component meets all required military qualification standards and screening levels specified in the datasheet before integration into final assemblies.

Selection Notes

Select this component when designing systems that require octal data buffering with registered outputs under harsh environmental conditions. The BCT technology offers a balance of speed and power efficiency suitable for complex digital interfaces where TTL compatibility is essential for seamless system integration.

Part Context

This part belongs to the SN54BCT series of octal bus transceivers and registers. It shares functional similarities with other members like the SN54ABT646 but distinguishes itself through specific voltage compatibility and power profiles tailored for military applications. The family provides standardized solutions for bidirectional data flow management in critical electronic systems.

Replacement Considerations

Consult official substitution guides for equivalent parts such as the SN54BCT646JT or SN54HCT646JT. Verify pinout compatibility and electrical specifications carefully, as variations in package type or voltage thresholds may impact circuit performance.