ISPGAL22V10AV-5LJN

Programmable Logic Device Pld Overview

The ISPGAL22V10AV-5LJN is an in-system programmable GAL22V10 device from Lattice Semiconductor, utilizing E2CMOS technology. It features 10 macrocells and a maximum propagation delay of 5 ns. The 'A' suffix indicates operation at 3.3V, while the 'V' denotes voltage-tolerant I/Os compatible with 5V signals. Packaged in a 28-pin PLCC, it supports high-speed reprogramming via JTAG. Key electrical parameters include a typical supply current of 45 mA and data retention exceeding 20 years.

Programmable Logic Device Pld Feature Summary

• In-System Programmability (ISP) via JTAG interface
• Voltage-tolerant I/Os for mixed-voltage systems
• E2CMOS technology with <100ms erase times
• Compatible with standard 22V10 pinouts

Programmable Logic Device Pld Applications

• DMA Control logic
• State Machine implementation
• High Speed Graphics Processing
• Standard Logic Speed Upgrade

Programmable Logic Device Pld Procurement Notes

Verify the specific speed grade (-5) and package variant (LJN) against the latest manufacturer datasheet. Confirm RoHS compliance status as older GAL families may have varying environmental declarations. Ensure programming tools support the ISP architecture for this specific 3.3V device.

Programmable Logic Device Pld Selection Notes

Select this part when in-system reprogrammability is required for legacy 22V10 functionality. The -5 speed grade offers 5ns delay. Choose the LJN package for surface-mount PLCC applications. Verify that the system operates at 3.3V logic levels or utilizes the voltage-tolerant inputs for 5V compatibility.

Programmable Logic Device Pld Part Context

This component belongs to the ispGAL family, which adds JTAG-based programming to the traditional GAL22V10 architecture. It serves as a drop-in replacement for bipolar and UV-erasable GAL22V10 devices in existing designs, offering faster reconfiguration capabilities without changing the board layout.

Programmable Logic Device Pld Replacement Considerations

Direct functional replacements include other GAL22V10 variants such as GAL22V10D-5LJ. For new designs, Lattice recommends evaluating the ispMACH 4000V series as a modern alternative.