PAL20R8A-2ML/883B

Programmable Logic Device Pld Overview

The PAL20R8A-2ML/883B is a high-performance Programmable Array Logic (PAL) device manufactured by Advanced Micro Devices. It features a TTL-compatible architecture with a maximum propagation delay of 2 nanoseconds, designed for critical timing applications. The component utilizes a 20-pin Metal-Leaded Ceramic Dual In-Line Package (CDIP), ensuring robustness in demanding environments. Key electrical characteristics include an operating temperature range from -55°C to +125°C and a standard 5V supply voltage. This specific variant includes registered outputs, providing state retention capabilities essential for sequential logic designs.

Programmable Logic Device Pld Feature Summary

• Ultra-fast 2ns maximum propagation delay for high-speed signal processing
• Registered output architecture supporting sequential logic operations
• Military-grade ceramic DIP package rated for -55°C to +125°C operation
• TTL-compatible input/output levels simplifying interface design

Programmable Logic Device Pld Applications

• High-speed data acquisition systems requiring precise timing control
• Military and aerospace avionics logic circuits
• Industrial automation controllers operating in extreme temperatures
• Complex state machine implementations in communication equipment

Programmable Logic Device Pld Procurement Notes

Verify the authenticity of the /883B suffix, which indicates compliance with MIL-PRF-38534 standards. Confirm that the metal seal and ceramic construction match the specified CDIP package type. Ensure the vendor provides traceability documentation for military-grade components. Check for any specific screening reports required for space or defense applications. Validate the pinout configuration against the official AMD datasheet to prevent installation errors.

Programmable Logic Device Pld Selection Notes

Select this component when a 2ns speed grade is mandatory within a 20-pin footprint. Compare against the PAL20R8A-10 series if lower speed requirements allow for cost reduction. Consider the PAL20R8A-15L variant if lower power consumption is prioritized over maximum speed. Ensure the design accommodates the thermal dissipation requirements of the ceramic package at high ambient temperatures. Verify that the registered output polarity matches the system logic requirements.

Programmable Logic Device Pld Part Context

This part belongs to the PAL20R8A family, which represents the fastest generation of 20-pin registered PAL devices from AMD. It succeeds earlier PAL20R8 variants by offering improved switching speeds while maintaining the same physical footprint. The /883B designation distinguishes it as a screened military version, contrasting with commercial tape-and-reel or standard DIP versions. It serves as a bridge between discrete logic and complex programmable logic devices in legacy high-speed designs.

Programmable Logic Device Pld Replacement Considerations

Direct pin-to-pin replacements are limited due to the specific 2ns speed and registered output combination. The PAL20R8A-10L may serve as a slower substitute if timing margins allow. Cross-brand equivalents require careful verification of I/O structure and propagation delays. Ensure that any replacement maintains the same ceramic package dimensions for mechanical compatibility.