GAL20VP8B-15LJ

Programmable Logic Device Pld Overview

The GAL20VP8B-15LJ is a Generic Array Logic (GAL) device manufactured by Lattice Semiconductor. It utilizes high-performance E²CMOS technology to provide reprogrammable logic in a 24-pin DIP package. The component features eight output macrocells with programmable output polarity and active pull-ups on all pins. Electrical specifications include a maximum propagation delay of 15 ns and an operating temperature range from -40°C to +85°C. The device supports register preload and power-on reset functions for all registers, ensuring reliable initialization states upon power-up.

Programmable Logic Device Pld Feature Summary

• High-performance E²CMOS technology with 15 ns maximum propagation delay
• Eight output macrocells with programmable output polarity and active pull-ups
• Register preload and power-on reset capabilities for all registers
• Compatible with standard PAL fuse maps and parametric characteristics

Programmable Logic Device Pld Applications

• Replacement for legacy bipolar PAL devices in existing designs
• Complex combinational and registered logic implementations
• Address decoding and bus control circuits
• State machine design in industrial and commercial systems

Programmable Logic Device Pld Procurement Notes

This specific part number is discontinued. Product Change Notifications (PCNs) have been issued for the GAL20V8 device family, indicating that manufacturing has ceased. Verification of current stock availability through authorized distributors is required, as these components are no longer in active production. Designers should consider obsolescence management strategies when sourcing this item.

Programmable Logic Device Pld Selection Notes

Select the GAL20VP8B-15LJ when a direct pin-compatible replacement for older GAL or PAL devices is needed with reprogrammability. Ensure the design requires eight outputs and fits within the available product terms. Verify that the 15 ns speed grade meets the system timing requirements. For new designs, evaluate modern CPLD alternatives that offer higher density and updated packaging options.

Programmable Logic Device Pld Part Context

The GAL20V8 series represents Lattice's entry into the reprogrammable PLD market, bridging the gap between one-time programmable fuses and complex FPGAs. This family allows designers to iterate logic designs without mask costs. The GAL20VP8B variant specifically offers enhanced performance and voltage compatibility compared to earlier generations, maintaining electrical compatibility with industry-standard PAL devices.

Programmable Logic Device Pld Replacement Considerations

Direct pin-for-pin replacements may be limited due to discontinuation. Consider Lattice MachXO or iCE40 families for new designs, though pinouts will differ. Check for cross-reference equivalents from other manufacturers if immediate substitution is critical, ensuring logic function and timing parameters match.