GAL20V8B-20QJNI

Programmable Logic Device Pld Overview

The GAL20V8B-20QJNI is a discontinued Electrically Erasable Programmable Logic Device (EE PLD) manufactured by Lattice Semiconductor. It utilizes E2CMOS technology and features an industrial temperature range of -40°C to +85°C. The device provides 10 dedicated inputs, 8 I/O lines, and 8 output logic macrocells within a 28-pin Plastic Quad Flat Package (PLCC). Key electrical parameters include a maximum propagation delay of 20 ns, a typical operating supply current of 65 mA at 5V, and a maximum clock frequency of 37 MHz with external feedback.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Supports high-speed electrical erasure in under 100ms and guarantees data retention exceeding 20 years.
• Reconfigurable Architecture: Features eight Output Logic Macrocells (OLMCs) supporting registered, complex, and simple modes.
• Industrial Grade: Designed for operation across the -40°C to +85°C ambient temperature range.
• Electronic Signature: Includes 64 bits of reprogrammable memory for user-defined identification or revision control.

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#09-10. No new units are available from the manufacturer. Verification of authenticity is critical when sourcing from secondary markets due to the age of the product and potential availability of obsolete inventory.

Programmable Logic Device Pld Selection Notes

Selection requires confirming compatibility with the 28-pin PLCC footprint and verifying that the 20 ns speed grade meets system timing requirements. Designers must account for the specific pinout constraints in Registered mode, where pins 1 and 13 are permanently assigned to Clock and Output Enable functions.

Programmable Logic Device Pld Part Context

The GAL20V8 series represents Lattice's Generic Array Logic family, offering full functional and parametric compatibility with standard 24-pin PAL devices. This specific part number denotes the Industrial grade variant with Quarter Power consumption characteristics housed in a lead-free PLCC package.

Programmable Logic Device Pld Replacement Considerations

Lattice issued PCN#09-10 designating the GAL20V8B-20QJNI as discontinued. The datasheet explicitly lists the GAL20V8B-20QPNI as the reference replacement part number associated with this discontinuation notice.