GAL22V10D-10LJI

Programmable Logic Device Pld Overview

The GAL22V10D-10LJI is a discontinued high-performance E2CMOS PLD from Lattice Semiconductor. It features 10 output logic macrocells, 22 I/O pins, and a maximum propagation delay of 10 ns. The device operates at 5 V with an industrial temperature range of -40°C to +85°C. It utilizes Electrically Erasable floating gate technology for reprogrammability, offering 100 erase/write cycles and 20-year data retention. The component is housed in a 28-pin PLCC package.

Programmable Logic Device Pld Feature Summary

• E2CMOS Technology: Electrically erasable and reprogrammable with <100ms erase time.
• OLMC Architecture: 10 configurable Output Logic Macrocells for registered or combinatorial modes.
• Active Pull-ups: Built-in active pull-ups on all pins to prevent floating inputs.
• Electronic Signature: 64-bit user-programmable memory 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 part is officially discontinued per PCN#13-10. No new production exists. Verification of authenticity is critical when sourcing from third-party distributors due to the age of the component and potential availability of refurbished units.

Programmable Logic Device Pld Selection Notes

Select this device only for legacy maintenance where specific GAL22V10 pinouts and fuse maps are required. Ensure programming equipment supports the User Electronic Signature (UES) feature if the 64-bit signature block is utilized in the design.

Programmable Logic Device Pld Part Context

The GAL22V10D series represents Lattice's high-performance Generic Array Logic devices using E2CMOS technology. The 'D' suffix denotes the enhanced performance variant compared to standard GAL22V10s, while 'LJI' specifies the Industrial grade (-40 to 85°C) and 28-pin PLCC package.

Programmable Logic Device Pld Replacement Considerations

No direct functional substitutes are listed in the provided documentation. As the entire GAL22V10D line is discontinued, redesigning with modern CPLDs or FPGAs is recommended for new applications.

Programmable Logic Device Pld FAQ

What is the maximum operating frequency?

The maximum clock frequency is 125 MHz with no feedback.

How many product terms are available per macrocell?

The number varies by pin: Pins 14/23 have 8, Pins 15/22 have 10, Pins 16/21 have 12, Pins 17/20 have 14, and Pins 18/19 have 16 product terms.

Does the device support asynchronous reset?

Yes, it includes a dedicated product term for Asynchronous Reset (AR) that sets all registers to zero immediately upon assertion.