SNJ54AHC245W

Overview

The SNJ54AHC245W is an octal bus transceiver with three-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 5.5V and supports an operating temperature range from -55°C to 125°C. The device utilizes CMOS technology and features bidirectional data transmission between two eight-bit buses controlled by DIR and OE inputs. It is housed in a 20-lead Ceramic Flat Package (CFP).

Feature Summary

• Designed for asynchronous two-way communication between data buses.
• Allows down voltage translation from 5V to 3.3V systems.
• Slow edge rates minimize output ringing and overshoot.

Applications

• Servers
• PCs and notebooks
• Network switches

Procurement Notes

Verify the specific ordering suffix 'W' corresponds to the CFP package variant. Confirm MIL-PRF-38535 compliance status if required, as production processing may not include testing of all parameters on non-compliant products. Ensure input pins are tied to VCC or GND to prevent undefined states.

Selection Notes

Select this component for applications requiring robust bidirectional bus interfacing with high noise immunity. The slow edge rate feature makes it suitable for environments where output ringing is a concern. Verify that the 2V to 5.5V supply range aligns with system power requirements.

Part Context

This part belongs to the SNx4AHC245 family of octal bus transceivers. It shares functional characteristics with other variants in the series but differs in packaging and environmental ratings. The 'SNJ' prefix indicates a military-grade qualification level compared to commercial 'SN74' counterparts.

Replacement Considerations

Public confirmed substitute part numbers: SNJ54AHC245J, SNJ54AHC245FK.