54L164DM

Overview

The 54L164DM is a high-speed low-power Schottky (LS) series shift register manufactured by Rochester Electronics, LLC. It features a 9-bit serial-in, parallel-out architecture with asynchronous clear functionality. The device is housed in a 14-pin ceramic dual in-line package (CDIP-14). It is characterized for operation over the full military temperature range of -55°C to 125°C. Key electrical parameters include a propagation delay of 15 ns and compliance with lead-free and RoHS standards. The component utilizes TTL logic levels and is designed for reliable performance in demanding environments.

Feature Summary

• Provides 9-bit serial-to-parallel data conversion capability
• Features asynchronous clear function for immediate output reset
• Constructed with ceramic dual in-line packaging for durability

Applications

• Military aerospace electronic systems
• High-reliability industrial control equipment
• Defense communication hardware

Procurement Notes

Verify that the specific part number matches the required military grade specifications. Confirm the package type is ceramic DIP-14 as opposed to plastic variants. Ensure the supplier provides traceability documentation consistent with Rochester Electronics manufacturing standards. Check for any specific lot code requirements relevant to your procurement contract.

Selection Notes

Select this component when a 9-bit shift register is required for harsh environment applications. The ceramic package offers superior thermal and mechanical stability compared to plastic alternatives. Consider the 15 ns propagation delay for timing constraints. Verify compatibility with existing TTL logic interfaces within the system design.

Part Context

Rochester Electronics specializes in authorized continuing source solutions for end-of-life and obsolete semiconductors. The 54L164DM is part of their portfolio of recreated components manufactured using original IP or purchased dies. These parts are tested to meet or exceed original manufacturer specifications, ensuring reliability for legacy system maintenance.

Replacement Considerations

Direct substitutes may include other SN54L164 variants from different manufacturers if pin-compatible. Verify functional equivalence regarding the 9-bit architecture and asynchronous clear. Ensure the replacement also meets the -55°C to 125°C operating temperature range.