54LS164J/883

Overview

The SN54LS164J/883 is an 8-bit serial-in, parallel-out shift register manufactured by National Semiconductor under the MIL-STD-883 Class C specification. It utilizes Low-Power Schottky TTL logic and features a ceramic DIP-14 package with independent control. The device operates within a temperature range of -55 °C to 125 °C and requires a nominal 5 V supply. Key electrical characteristics include a maximum propagation delay of 20 ns at 5 V and a maximum power supply current of 2.8 mA.

Feature Summary

• Provides eight-bit serial-to-parallel data conversion using Low-Power Schottky technology for reduced power consumption.
• Features dual serial inputs (A and B) that function as an AND gate to enable clocking only when both are high.
• Includes a dedicated clear input that asynchronously resets all outputs to a low state upon activation.

Applications

• Military-grade data storage and buffering in aerospace systems
• Parallel output expansion for serial communication interfaces
• High-reliability industrial control logic circuits

Procurement Notes

Verify the presence of the MIL-STD-883 Class C screening level on documentation to ensure compliance with military reliability standards. Confirm the J suffix indicates a ceramic DIP-14 package and validate the manufacturer origin as National Semiconductor or authorized successor entities. Ensure the component meets the specified -55 °C to 125 °C operating temperature range for your application environment.

Selection Notes

Select this component when a ruggedized, 8-bit shift register is required for harsh environments. It is suitable for designs needing asynchronous clearing and dual serial input gating. Consider the 20 ns propagation delay and 2.8 mA current draw against system timing and power budgets. Verify compatibility with existing TTL logic levels and ceramic packaging constraints.

Part Context

This part belongs to the SN54LS family, designed for military specifications. It differs from commercial variants through enhanced thermal stability and rigorous screening. The /883 suffix denotes adherence to MIL-STD-883 test methods, ensuring higher reliability than standard industrial counterparts.

Replacement Considerations

Public confirmed substitute part numbers: SN54LS164J/883B, DM54LS164J/883C.