SNJ54BCT245J

Overview

The SNJ54BCT245J is an octal bus transceiver with 3-state outputs designed for asynchronous communication between data buses. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an operating temperature range of -55°C to 125°C. The device features a direction-control input to manage data flow between the A and B buses, and an output-enable input for isolation. It utilizes TTL-compatible input and output levels.

Feature Summary

• Provides bidirectional data transmission between two 8-bit buses controlled by a single direction signal
• Features 3-state outputs that effectively isolate the buses when disabled
• Includes ESD protection exceeding JESD 22 specifications

Applications

• Asynchronous communication between data buses
• Driving bus lines
• Buffering memory address registers

Procurement Notes

Verify the specific military qualification status and package integrity upon receipt. Confirm that the component matches the SNJ54BCT245J designation and CDIP-20 form factor. Ensure all unused inputs are properly terminated during testing to maintain operational stability.

Selection Notes

Select this component for applications requiring wide temperature operation and high drive capability. The BCT series offers CMOS compatibility with TTL input levels. Consider the CDIP package for through-hole mounting requirements in rugged environments.

Part Context

This part belongs to the SN54BCT245 family, which includes variants like SNJ54BCT245W and SNJ54BCT245FK. These devices share identical electrical characteristics but differ in packaging. The SNJ54BCT245J specifically denotes the ceramic dual in-line package variant suitable for military and defense applications.

Replacement Considerations

SNJ54BCT245W (CFP-20) and SNJ54BCT245FK (LCCC-20) offer equivalent electrical performance with different physical footprints.