PAL20R4-10/BLA

Programmable Logic Device Pld Overview

The PAL20R4-10/BLA is a programmable logic device from the Advanced Micro Devices (AMD) PAL16R8 family, housed in a 20-pin PLCC package. It features a PAL-type architecture with 10 inputs and 4 registered outputs. The component supports TTL logic levels and includes power-up reset and register preload capabilities for initialization and testability. Operating at a maximum clock frequency of 25 MHz, it utilizes an AND-OR array structure to implement complex combinational and sequential logic functions within a compact form factor suitable for high-performance digital applications.

Programmable Logic Device Pld Feature Summary

• PAL-type architecture with 10 inputs and 4 registered outputs
• Maximum propagation delay of 10 ns and clock frequency up to 25 MHz
• Power-up reset and register preload features for system initialization
• 20-pin PLCC (PLCC20) plastic package

Programmable Logic Device Pld Applications

• High-speed digital logic replacement
• Sequential circuit implementation
• System control logic

Programmable Logic Device Pld Procurement Notes

Verify the specific suffix '/BLA' against official AMD documentation to confirm package type and temperature range specifications. Ensure compliance with current environmental regulations as older components may not be RoHS compliant. Confirm availability through authorized distributors or surplus suppliers given the component's age.

Programmable Logic Device Pld Selection Notes

Select this component when a 20-pin PAL device with registered outputs is required. Compare performance metrics such as propagation delay and I/O count against alternatives like the PAL16R6 or PAL16R8 if different output configurations are needed. Ensure voltage levels match the target system's TTL requirements.

Programmable Logic Device Pld Part Context

This part belongs to the AMD PAL16R8 family, which includes variants like PAL16L8, PAL16R8, and PAL16R6. These devices are designed for high-speed applications and offer pin compatibility within the family. The PAL20R4 specifically provides four registered outputs, distinguishing it from combinatorial-only variants.

Programmable Logic Device Pld Replacement Considerations

Direct pin-compatible replacements include other members of the PAL16R8 family such as the PAL16R6 or PAL16R8, provided the output configuration matches the design requirements. Verify timing parameters to ensure the substitute meets the system's speed constraints.