CAT28F020GI90

Memory IC Overview

The CAT28F020GI90 is a 2 Megabit CMOS Flash memory manufactured by onsemi. It features a 256K x 8 organization with parallel interface and 90 ns access time. The device operates within a supply voltage range of 4.75V to 5.25V and supports an industrial temperature range of -40°C to +85°C. It utilizes a 32-pin PLCC package.

Memory IC Feature Summary

• Supports high-speed programming and erase operations via internal stop timers
• Compatible with standard EPROM and E2PROM pinouts and read timing
• Includes electronic signature identification for manufacturer and device verification

Memory IC Applications

• In-system code updates
• After-sale firmware modifications
• Non-volatile data storage requiring electrically erasable reprogramming

Memory IC Procurement Notes

Verify component authenticity through official onsemi channels or authorized distributors. Confirm the specific suffix 'G' indicates lead-free and halogen-free packaging compliance. Ensure the ordering configuration matches the required speed grade and package type for your design specifications.

Memory IC Selection Notes

Select this component when a 2Mbit capacity with fast 90ns access is required. Consider the 32-pin PLCC form factor for surface mount compatibility. Verify that the system provides the necessary 12V programming voltage on the VPP pin during write cycles.

Memory IC Part Context

This part belongs to the CAT28F020 series of 2 Megabit Flash memories. It is designed as a drop-in replacement for standard JEDEC 28F020 devices, maintaining electrical compatibility while offering enhanced endurance and retention characteristics typical of modern CMOS floating gate technology.

Memory IC Replacement Considerations

SST39SF020A-55-4I-NHE and SST39SF020A-70-4I-NHE are confirmed substitutes.