PAL20R4-12/BLA

Programmable Logic Device Pld Overview

The PAL20R4-12/BLA is a Programmable Array Logic (PAL) device manufactured by Advanced Micro Devices. It belongs to the PAL20R8 family, featuring a 20-pin PLCC package with plastic construction. The component operates with TTL input levels and provides a maximum propagation delay of 12 ns, corresponding to a maximum clock frequency of approximately 83 MHz. It includes 20 pins, comprising 16 inputs and 4 registered outputs. Key architectural features include power-up reset functionality, register preload capabilities for testability, and support for one external clock input.

Programmable Logic Device Pld Feature Summary

• Maximum propagation delay of 12 ns
• TTL-compatible logic levels
• 20-pin Plastic Leaded Chip Carrier (PLCC) package
• Power-up reset and register preload features

Programmable Logic Device Pld Applications

• High-speed TTL logic replacement
• Digital system state machines
• Address decoding circuits

Programmable Logic Device Pld Part Context

This part is a member of the PAL20R8 family, which also includes variants like PAL20R8, PAL20R6, and PAL20R10. These devices are designed as programmable replacements for standard high-speed TTL logic gates, offering flexibility in digital design while maintaining compatibility with existing pinouts and electrical characteristics.

Programmable Logic Device Pld Replacement Considerations

Direct pin-to-pin replacements within the same family include PAL20R8-12/BLA, PAL20R6-12/BLA, and PAL20R10-12/BLA, depending on the required number of registered outputs. Ensure that the specific output configuration matches the application requirements.