PAL20R4A-2ML/883B

Programmable Logic Device Pld Overview

The PAL20R4A-2ML/883B is a high-speed Programmable Array Logic (PAL) device manufactured by Advanced Micro Devices. It features a TTL-compatible architecture with 20 dedicated inputs and 4 registered outputs, housed in a 20-pin ceramic flatpack (CDFP). The component operates within an extended temperature range of -55°C to +125°C and supports a maximum clock frequency of 25 MHz. With a typical propagation delay of 2 ns, it provides fast combinatorial and registered logic functions suitable for demanding digital applications.

Programmable Logic Device Pld Feature Summary

• 20 dedicated inputs and 4 registered outputs
• 2 ns maximum propagation delay
• 25 MHz maximum clock frequency
• Military-grade temperature range (-55°C to +125°C)
• Ceramic flatpack package

Programmable Logic Device Pld Applications

• High-speed digital logic control systems
• Military and aerospace signal processing
• Industrial automation controllers
• Memory address decoding circuits

Programmable Logic Device Pld Procurement Notes

Verify the authenticity of the /883B suffix, which indicates compliance with MIL-PRF-38534 standards. Confirm the specific speed grade corresponding to the '2' designation in the part number. Ensure the ceramic flatpack package condition is inspected for seal integrity before installation.

Programmable Logic Device Pld Selection Notes

Select this component when registered output functionality is required alongside high-speed performance. The 20R4 configuration offers a balance of input capacity and output feedback. Consider the thermal management requirements associated with the military temperature rating and ceramic packaging.

Programmable Logic Device Pld Part Context

This part belongs to the PAL20R4 family of registered PLDs from AMD. It shares architectural similarities with other members like the PAL20R6 and PAL20R8 but differs in output count and pin assignment. The /883B variant ensures reliability for harsh environments compared to commercial equivalents.

Programmable Logic Device Pld Replacement Considerations

Direct replacements must match the 20-pin CDFP footprint and registered output configuration. Verify timing parameters against the original design specifications. Cross-reference with other manufacturers offering MIL-spec PAL devices if availability is constrained.