DM54S241J/883

Overview

The DM54S241J/883 is a single 4-bit bus transceiver manufactured by National Semiconductor under the S-TTL logic family. It features bidirectional data flow control and three-state outputs for effective bus isolation. The device operates on a 5 V supply with a maximum power consumption of 5.5 mA. It is housed in a 14-pin ceramic flatpack (DFP) package, suitable for high-reliability applications requiring military-grade performance.

Feature Summary

• Bidirectional data transfer capability between two buses
• Three-state output design for bus line isolation
• Independent direction control input for traffic management
• Ceramic flatpack construction for environmental durability

Applications

• Military communication systems requiring robust signal integrity
• High-reliability aerospace data processing units
• Industrial control networks utilizing TTL logic standards
• Test and measurement equipment bus interfaces

Procurement Notes

Verify the specific suffix J/883B or J/883 to confirm the exact screening level and qualification status required for your application. Ensure the ceramic flatpack package matches your PCB footprint constraints. Confirm RoHS compliance status as older military-grade components may not meet current environmental directives. Request full traceability documentation for critical deployments.

Selection Notes

Select this component when bidirectional buffering with independent direction control is necessary within an S-TTL environment. The three-state outputs allow multiple devices to share a common data bus without interference. Consider the thermal characteristics of the ceramic package for high-temperature operational environments. Verify that the 5V supply voltage aligns with the system's power distribution network.

Part Context

This part belongs to the DM54 series of military-grade logic devices produced by National Semiconductor. The S-TTL family offers faster switching speeds compared to standard TTL variants. The /883 designation indicates compliance with MIL-PRF-38534 or similar military procurement specifications, ensuring enhanced reliability and screening procedures beyond commercial standards.

Replacement Considerations

Direct replacements include other National Semiconductor DM54S241 variants with compatible packaging. Cross-reference with equivalent military-specification bus transceivers from other manufacturers if sourcing constraints exist. Ensure pinout compatibility and electrical parameters match exactly before substitution.