JM54AC299BSA

Shift Registers Overview

The JM54AC299BSA is a military-grade universal shift register manufactured by National Semiconductor. It features an 8-bit serial-in/parallel-out architecture with bidirectional capability, designed for high-reliability applications in harsh environments. The device operates within a temperature range of -55°C to +125°C and utilizes CMOS technology for low power consumption. It supports parallel load operations and includes clock enable functionality for precise data synchronization. The component is housed in a ceramic dual in-line package (CDIP) suitable for space-constrained and high-thermal-stress systems.

Shift Registers Feature Summary

• Military-grade reliability with extended temperature operation
• Bidirectional 8-bit serial-in/parallel-out shift register
• Parallel load capability for rapid data initialization
• Clock enable control for synchronized data shifting

Shift Registers Applications

• Military communication systems requiring robust data handling
• Avionics signal processing and telemetry
• Spacecraft instrumentation and control units
• High-reliability industrial automation controllers

Shift Registers Procurement Notes

Verify the manufacturer source carefully, as National Semiconductor was acquired by Texas Instruments. Ensure the part number suffix matches the specific military grade and package variant required. Confirm that the ceramic package integrity meets aerospace or defense specifications. Request full traceability documentation including lot codes and material declarations. Validate compatibility with existing system voltage levels and thermal management requirements before procurement.

Shift Registers Selection Notes

Select this component when military-grade environmental tolerance is mandatory. Compare pinout compatibility with existing PCB layouts due to the CDIP package form factor. Evaluate power supply stability requirements given the CMOS input characteristics. Consider replacement options only if verified equivalent military parts are available. Ensure design margins account for the specified operating temperature extremes.

Shift Registers Part Context

This component belongs to the 54AC series of logic devices, which are characterized by their military qualification and AC-speed performance. The 54-series designation indicates radiation-hardened or enhanced reliability features compared to commercial 74-series counterparts. National Semiconductor originally developed this line for defense applications before its acquisition by Texas Instruments, which continues to support legacy military parts through specific distribution channels.

Shift Registers Replacement Considerations

Verify direct replacements such as SN54AC299BSA or SN54AC299BSC from Texas Instruments, ensuring the military suffix matches. Check for cross-reference equivalents from other qualified military suppliers like Raytheon or L3Harris if available. Confirm that any substitute maintains the same ceramic package and temperature rating.