GAL20V8B-25LJI

Programmable Logic Device Pld Overview

The GAL20V8B-25LJI is a discontinued Generic Array Logic (GAL) device manufactured by Lattice Semiconductor. It utilizes high-performance E2CMOS technology to provide electrically erasable and reprogrammable logic capabilities. The component features an industrial temperature range of -40°C to +85°C and operates within a supply voltage window of +4.50V to +5.50V. Key electrical specifications include a maximum propagation delay of 25 ns, a typical operating power supply current of 130 mA, and a maximum clock frequency of 41.6 MHz with external feedback. The device is housed in a 28-pin PLCC package.

Programmable Logic Device Pld Feature Summary

• High Performance E2CMOS Technology: Supports up to 25 ns maximum propagation delay and 41.6 MHz maximum clock frequency with external feedback.
• Electrically Erasable Architecture: Features 100% tested/100% yields, high-speed electrical erasure (<100ms), and over 20 years data retention.
• Flexible Output Logic Macrocells (OLMC): Eight OLMCs support registered, complex, and simple modes, emulating various PAL architectures like 20R8 and 20L8.
• Active Pull-ups on All Pins: Enhances signal integrity and reduces noise susceptibility across all input/output pins.

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 specific part number has been officially discontinued by the manufacturer as per Product Change Notification PCN#13-10. Verification of availability requires checking authorized distributors for remaining stock or contacting secondary market suppliers such as Rochester Electronics. Ensure that any sourced units are verified for authenticity and storage conditions prior to integration into designs.

Programmable Logic Device Pld Selection Notes

When selecting this component, verify compatibility with the required speed grade (-25 ns) and industrial temperature range (-40°C to +85°C). Confirm that the design utilizes the PLCC-28 package footprint. Consider the power consumption profile, noting the typical ICC of 130 mA at 15MHz toggle rate. Evaluate if the eight OLMC configuration options meet the logic density requirements before finalizing the selection.

Programmable Logic Device Pld Part Context

The GAL20V8B-25LJI belongs to the GAL20V8B product line, which represents the standard bipolar-compatible performance tier of the GAL20V8 family. The 'B' suffix denotes the standard performance variant, while 'LJI' indicates Low Power consumption, Industrial temperature grade, and PLCC-28 Lead-free packaging. This series was designed to replace older bipolar PAL devices with lower power CMOS alternatives.

Programmable Logic Device Pld Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation due to the discontinuation status. Designers should consult Lattice Semiconductor's official transition guides or contact authorized partners for recommended modern equivalents or legacy inventory sources.