PAL20R4BML/883B

Programmable Logic Device Pld Overview

The PAL20R4BML/883B is a high-speed Programmable Array Logic (PAL) device manufactured by Advanced Micro Devices. It features a TTL-compatible architecture with 20 pins and operates within an extended temperature range of -55°C to +125°C. The component provides four registered outputs and supports propagation delays as low as 15ns, ensuring reliable performance in demanding environments. Its ceramic metal-sealed cofired package design ensures durability for military and aerospace applications requiring high reliability.

Programmable Logic Device Pld Feature Summary

• TTL-compatible logic levels for direct interfacing with standard digital systems
• Registered output structure providing stable state retention
• Extended industrial/military temperature range from -55°C to +125°C
• Ceramic DIP-20 package suitable for harsh environment deployment

Programmable Logic Device Pld Applications

• Military avionics control systems
• Aerospace data processing units
• High-reliability industrial automation controllers

Programmable Logic Device Pld Part Context

This part belongs to the PAL20R family of programmable logic devices from AMD. The '/883B' suffix indicates compliance with MIL-PRF-38534 Class B specifications, denoting a high-reliability ceramic package variant intended for defense and space applications rather than commercial consumer electronics.

Programmable Logic Device Pld Replacement Considerations

Direct pin-for-pin replacements include other PAL20R4 variants from different manufacturers such as Texas Instruments or National Semiconductor, provided they meet the same timing and voltage requirements. Verify that any substitute also carries the necessary radiation hardness or thermal stability certifications if used in original 883B contexts.