GAL20V8B-15LJN

Programmable Logic Device Pld Overview

The GAL20V8B-15LJN is a discontinued Generic Array Logic (GAL) device manufactured by Lattice Semiconductor. It utilizes high-performance E2CMOS technology, providing electrically erasable and reprogrammable logic capabilities with a maximum propagation delay of 15 ns. The component features eight Output Logic Macrocells (OLMCs), allowing flexible configuration in registered, complex, or simple modes. It operates within an industrial temperature range of -40°C to +85°C and supports up to 100 erase/write cycles with over 20 years of data retention.

Programmable Logic Device Pld Feature Summary

• High Performance E2CMOS Technology: Features a 15 ns maximum propagation delay and active pull-ups on all pins.
• Reconfigurable Architecture: Supports Registered, Complex, and Simple OLMC modes for versatile logic implementation.
• E2 Cell Technology: Offers 100% tested yields, fast electrical erasure (<100ms), and 20-year data retention.
• Industrial Grade Reliability: Operates reliably across the -40°C to +85°C ambient temperature range.

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 part number is officially discontinued per Product Change Notification PCN#06-07. No new production units are available from Lattice Semiconductor. Verification of availability should be restricted to existing inventory held by third-party distributors or specialized surplus suppliers. Designers must account for the obsolescence status when planning long-term supply chains.

Programmable Logic Device Pld Selection Notes

Select this component only if legacy compatibility with specific PAL fuse maps or parametric characteristics is required. The 'L' suffix indicates Low Power consumption, while 'JN' denotes a lead-free PLCC package. Ensure that the design software compiler supports the GAL20V8 device type to correctly configure the architecture bits for the desired macrocell mode.

Programmable Logic Device Pld Part Context

The GAL20V8 series represents a generation of Electrically Erasable Programmable Logic Devices (EPLDs) designed to replace hardwired bipolar logic. This specific model belongs to the GAL20V8B product line, which offers improved performance over earlier iterations. It serves as a bridge between fixed-function PALs and modern CPLDs, offering user-reprogrammability without the complexity of larger FPGA architectures.

Programmable Logic Device Pld Replacement Considerations

No direct public substitute part numbers are listed in the datasheet. Discontinued devices in this family may require evaluation of modern CPLD alternatives from Lattice or other manufacturers that match the pin count and I/O requirements.

Programmable Logic Device Pld FAQ

What does the 'LJN' suffix indicate for this part?

The 'L' indicates Low Power consumption. The 'J' signifies the PLCC package type. The 'N' denotes that the package is lead-free compliant.

Can the GAL20V8B-15LJN emulate standard PAL devices?

Yes, the device can emulate various 24-pin PAL architectures, including 20R8, 20L8, and 14L8, with full function, fuse map, and parametric compatibility depending on the selected OLMC mode.

How many erase/write cycles are supported?

The device specifies a minimum of 100 electrical erase/write cycles.