JM54AC373SRA-RH

Latches Overview

The JM54AC373SRA-RH is a high-speed CMOS octal D-type transparent latch with three-state outputs, manufactured by National Semiconductor. It belongs to the 54AC series, designed for radiation-hardened aerospace applications. The device features eight latches that appear transparent when the Latch Enable (LE) signal is HIGH and capture data meeting setup times when LE is LOW. Outputs enter a high-impedance state when Output Enable (OE) is HIGH. It operates within a supply voltage range of 2V to 6V and supports an extended temperature range from -55°C to +125°C.

Latches Feature Summary

• Radiation hardness qualification ensuring reliability in space environments
• Immunity to single event latch-up and single event upset
• Three-state outputs for efficient bus interfacing
• Transparent latch operation controlled by dedicated enable signals

Latches Applications

• Aerospace bus interface systems
• Spacecraft data storage registers
• Radiation-tolerant digital logic circuits
• Military-grade electronic control units

Latches Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor is now part of Texas Instruments. Confirm the specific suffixes match the required radiation hardening and hermetic packaging specifications. Ensure the component meets current military standards if applicable. Cross-reference with official datasheets to validate pinout and electrical characteristics against original documentation.

Latches Selection Notes

Select this component for applications requiring robust performance in high-radiation environments. It is suitable where standard commercial parts may fail due to single-event effects. Consider the hermetic package for long-term stability in extreme temperatures. Evaluate system requirements for speed and power consumption against the AC series capabilities.

Latches Part Context

This part is part of the 54AC series, which includes various high-speed CMOS functions like gates, flip-flops, and counters. These components are specifically engineered to meet the stringent radiation requirements of the aerospace industry. The series offers a comprehensive set of logic functions housed in durable packages suitable for harsh conditions.

Latches Replacement Considerations

Direct replacements include other radiation-hardened octal latches from manufacturers like STMicroelectronics or Texas Instruments. Verify compatibility with existing board layouts and electrical specifications. Ensure substitute parts maintain similar radiation tolerance levels and operating temperature ranges.