SNJ54HC245J

Overview

The SNJ54HC245J is an octal bus transceiver with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 6 V and supports bidirectional data transmission between two 8-bit buses (A and B). The device features direction control via the DIR input and output isolation via the OE input. It utilizes HC CMOS technology, providing high-current outputs capable of driving up to 15 LSTTL loads. The component is housed in a 20-pin ceramic dual in-line package (CDIP) and is rated for operation across a temperature range of -55°C to 125°C.

Feature Summary

• Bidirectional data transfer capability controlled by logic levels at the DIR pin
• Three-state outputs allowing effective bus isolation when OE is asserted
• Wide operating voltage range from 2 V to 6 V with low power consumption
• High-current outputs designed to drive bus lines directly or multiple LSTTL loads

Applications

• Servers
• PCs and Notebooks
• Network Switches
• Wearable Health and Fitness Devices
• Telecom Infrastructures

Procurement Notes

Verify that the specific ordering suffix 'J' corresponds to the CDIP-20 package variant. Confirm compliance requirements such as MIL-PRF-38535 if applicable, noting that parameter testing may vary based on production processing standards. Ensure the procurement channel provides documentation regarding the RoHS status and lead finish specifications for this military-grade ceramic package.

Selection Notes

Select this component for applications requiring asynchronous two-way communication between data buses where wide voltage flexibility is necessary. The HC series offers balanced output drive suitable for minimizing overshoot and undershoot. Consider the thermal resistance characteristics of the CDIP package during layout planning to ensure reliable operation within the specified temperature limits.

Part Context

This part belongs to the SNx4HC245 family of octal bus transceivers. It shares functional similarities with other variants like SNJ54LS245J but differs in technology and performance metrics. The 'SNJ' prefix indicates a military-grade qualification level, while the 'HC' designation specifies High-speed CMOS technology. This places it within the broader category of digital logic bus drivers used in complex electronic systems.

Replacement Considerations

Public confirmed substitute part numbers include SNJ54LS245J and SNJ54ALS245AJ.