SNJ54BCT245W

Overview

The SNJ54BCT245W 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 free-air temperature range from -55°C to 125°C. The device features TTL input and output levels, with low-level output currents reaching up to 48 mA on the B port. Propagation delays are specified at a maximum of 7 ns under standard test conditions.

Feature Summary

• Provides bidirectional data transmission between two 8-bit buses controlled by a single direction input
• Features 3-state outputs that effectively isolate buses when disabled via the output-enable input
• Includes ESD protection exceeding JESD 22 specifications for human-body model reliability

Applications

• Asynchronous communication between data buses
• Driving bus lines requiring high current drive capabilities
• Buffering memory address registers in military or defense applications

Procurement Notes

Verify the specific ordering suffix 'W' corresponds to the CFP package configuration. Confirm that the component meets MIL-PRF-38535 requirements if QML certification is necessary for the intended application. Ensure all unused inputs are tied to VCC or GND to maintain proper operation.

Selection Notes

Select this component for systems requiring wide temperature stability and robust ESD protection. The BCT logic family offers higher drive strength compared to standard CMOS families. Verify compatibility with existing TTL-compatible signal levels in the target circuit design.

Part Context

This part belongs to the SN54BCT245 series, which includes variants like SNJ54BCT245FK and SNJ54BCT245J. These devices share identical electrical characteristics but differ in physical packaging. The SNJ prefix indicates a military-grade qualification level distinct from the commercial SN74 series.

Replacement Considerations

• SNJ54BCT245FK
• SNJ54BCT245J