DM54173J/B

Overview

The DM54173J/B is a high-reliability, military-grade 8-bit D-type flip-flop manufactured by Rochester Electronics. It features separate clock inputs for the upper and lower nibbles to prevent race conditions during data transitions. The device operates within a supply voltage range of 5V ±10% and supports a wide operating temperature range from -55°C to 125°C. Packaged in a ceramic dual-in-line (DIP) format, it ensures robust performance in harsh environments requiring stringent reliability standards.

Feature Summary

• Separate clock inputs for upper and lower nibbles to eliminate race conditions
• Military-grade construction with hermetic ceramic packaging
• Wide operating temperature range suitable for extreme environments

Applications

• Military avionics systems
• Spacecraft data storage registers
• High-reliability industrial control logic

Procurement Notes

Verify that the component meets specific military qualification standards such as MIL-PRF-38534 or equivalent. Confirm the presence of manufacturer traceability documentation and lot test reports. Ensure the package integrity matches the required hermetic seal specifications for the intended application environment.

Selection Notes

Select this component when race-free operation of 8-bit data is critical in high-stress environments. It is appropriate for designs requiring certified military-grade reliability and wide thermal tolerance. Consider the DIP package constraints and manual handling requirements associated with ceramic packages.

Part Context

This part belongs to the SN54173 family of high-speed ECL-compatible flip-flops. It provides non-inverting outputs and is designed for use in complex digital logic circuits where timing integrity is paramount. The device serves as a fundamental building block for registers and memory arrays in defense applications.

Replacement Considerations

Public confirmed substitute part numbers: SN54173J/B.