ISPGAL22V10AV-28LJ

Programmable Logic Device Pld Overview

The ISPGAL22V10AV-28LJ is an in-system programmable generic array logic (GAL) device manufactured by Lattice Semiconductor. It features 22 input lines and 10 output lines, organized into 10 macrocells capable of configuring as inputs, combinational outputs, registered outputs, or complex outputs. The device utilizes E2CMOS technology to enable electrical erasure and reprogramming without UV light. Key electrical specifications include a maximum propagation delay of 28 ns and operation within a voltage range of 2.5 V to 3.6 V. It is housed in a 28-pin PLCC package.

Programmable Logic Device Pld Feature Summary

• In-System Programmability via ISP interface
• E2CMOS Technology for Electrical Erase/Reprogram
• 10 Macrocells with Flexible Output Configuration
• 2.5V to 3.6V Operating Voltage Range

Programmable Logic Device Pld Applications

• Logic replacement for standard 22V10 devices
• State machine control
• Address decoding
• Bus interfacing

Programmable Logic Device Pld Part Context

This component belongs to the ispGAL22LV10 family, representing an evolution of the classic GAL22V10 architecture. Unlike the non-volatile GAL22V10D which requires UV erasure, the ispGAL series integrates flash memory cells, allowing field updates through serial programming interfaces. This model specifically targets low-voltage applications requiring the density of a 22V10 device with modern reconfigurability.

Programmable Logic Device Pld Replacement Considerations

Direct pin-compatible replacements exist within the same family, such as the ISPGAL22V10A-25LJ for faster switching speeds. Designers must ensure the target system supports the required ISP programming voltage levels and that the new part's power consumption characteristics align with the application's thermal constraints.