JM54AC373SSA-RH

Latches Overview

The JM54AC373SSA-RH is a high-speed CMOS octal D-type transparent latch with three-state outputs, manufactured by National Semiconductor. It belongs to the AC series and features true output polarity. The device operates on a single 5 V supply and utilizes a 20-lead ceramic dual-in-line package (CDIP). It supports an operating temperature range from -55 °C to +125 °C. The component provides eight bits of data storage with one functional unit per package.

Latches Feature Summary

• Octal D-type transparent latch architecture for bus interface applications
• Three-state outputs allowing direct connection to system buses
• High-speed CMOS technology ensuring low power consumption
• Hermetic ceramic packaging suitable for harsh environments

Latches Applications

• Bus-oriented memory systems requiring data latching
• Military aerospace electronics demanding radiation hardness
• Harsh environment industrial control interfaces
• High-reliability communication equipment data buffers

Latches Procurement Notes

Verify the specific suffix 'RH' against the manufacturer's current standard microcircuit drawing or datasheet to confirm radiation hardening specifications and hermetic sealing requirements. Ensure the ordering information matches the exact CDIP20 package dimensions and material composition listed in official documentation. Cross-reference the part number with authorized distributors to confirm availability of genuine National Semiconductor or Texas Instruments stock.

Latches Selection Notes

Select this component when designing systems that require robust data retention in high-radiation or extreme temperature conditions. The AC series offers higher speed compared to older HC/HCT families while maintaining CMOS power efficiency. Verify that the 5 V logic levels are compatible with the rest of the system. Consider the hermetic package benefits if environmental sealing is critical for long-term reliability in space or defense applications.

Latches Part Context

This part is part of the 54AC/54ACT family designed for military and aerospace standards. National Semiconductor was acquired by Texas Instruments, which now manages these legacy product lines. The 54AC373 variant specifically provides octal latching capabilities with tri-state outputs, widely used in complex digital systems requiring high-speed data transfer and isolation.

Latches Replacement Considerations

Check for equivalent parts such as the SN54AC373J or other 54AC373 variants from Texas Instruments. Ensure any substitute maintains the same radiation hardness qualification and hermetic package type if required by the application.