GAL20V8B-25QPI

Programmable Logic Device Pld Overview

The GAL20V8B-25QPI is a discontinued Electrically Erasable Programmable Logic Device (EPLD) manufactured by Lattice Semiconductor. It utilizes E2CMOS technology and features an industrial temperature range of -40°C to +85°C with a 5V supply voltage. The device provides 10 dedicated inputs, 8 I/O lines, and 8 Output Logic Macrocells within a 28-pin PLCC package. Key electrical specifications include a maximum propagation delay of 25 ns, a typical operating current of 65 mA for the quarter-power variant, and a maximum clock frequency of 37 MHz.

Programmable Logic Device Pld Feature Summary

• High-performance E2CMOS technology with 25 ns maximum propagation delay
• Reprogrammable architecture supporting registered, complex, and simple modes
• Active pull-ups on all pins and programmable output polarity
• Emulates standard PAL devices with full function and parametric compatibility

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 per Product Change Notification PCN#13-10. No new production units are available from Lattice Semiconductor. Verification of authenticity is critical when sourcing from secondary markets, as availability is limited to existing inventory or surplus stock.

Programmable Logic Device Pld Selection Notes

Designers should evaluate the GAL20V8C series for updated performance metrics, such as reduced 5 ns propagation delays. For modern replacements, consider Lattice's MachXO or ICE40 families which offer higher density, lower power consumption, and continued manufacturing support.

Programmable Logic Device Pld Part Context

The GAL20V8B belongs to the Generic Array Logic family, designed to replace obsolete bipolar PALs. The 'B' suffix denotes the specific generation of the device, while 'QPI' indicates the Quarter Power speed grade and Industrial temperature rating in a Plastic Leadless Chip Carrier package.

Programmable Logic Device Pld Replacement Considerations

GAL20V8C-25QPI