GAL20V8B-25LJ

Programmable Logic Device Pld Overview

The GAL20V8B-25LJ is a discontinued Electrically Erasable Programmable Logic Device (PLD) from Lattice Semiconductor. It utilizes E2CMOS technology and features an industrial temperature range of -40°C to +85°C. The device provides 10 inputs, 8 I/Os, and 8 Output Logic Macrocells (OLMCs). Key electrical parameters include a maximum propagation delay of 25 ns, a typical operating supply current of 75 mA for the Low Power variant, and a maximum clock frequency of 37 MHz with external feedback. It supports registered, complex, and simple logic modes.

Programmable Logic Device Pld Feature Summary

• E2CMOS technology enabling high-speed reprogramming with less than 100 ms erase times.
• Configurable Output Logic Macrocells supporting Registered, Complex, and Simple modes.
• Active pull-ups on all pins and programmable output polarity.
• 64-bit reprogrammable electronic signature for identification.

Programmable Logic Device Pld Applications

• DMA Control
• State Machine Control
• High Speed Graphics Processing
• Standard Logic Speed Upgrade

Programmable Logic Device Pld Procurement Notes

This component has been officially discontinued by Lattice Semiconductor per Product Change Notification PCN#13-10. Verification of availability requires checking secondary market distributors or authorized liquidators such as Rochester Electronics. No new production units are available directly from the manufacturer.

Programmable Logic Device Pld Selection Notes

Select this part only if legacy compatibility with specific PAL architectures (e.g., 20R8, 20L8) is required. Ensure designs accommodate the 25 ns speed grade and 75 mA typical current consumption. Verify that the PLCC package footprint matches existing PCB layouts, as DIP alternatives exist but differ in pinout.

Programmable Logic Device Pld Part Context

The GAL20V8B series represents the second generation of Generic Array Logic devices from Lattice. The 'B' suffix denotes the use of E2CMOS technology, allowing for electrical erasure and reprogramming, unlike earlier fuse-based GAL devices. This family bridges the gap between fixed logic gates and modern CPLDs.

Programmable Logic Device Pld Replacement Considerations

Public confirmed substitute part numbers: None listed in the datasheet. Refer to PCN#13-10 for official discontinuation details.