CAT28F020LI12

Memory IC Overview

The CAT28F020LI12 is a 2 Megabit CMOS Flash memory organized as 256K x 8 bits. It features a parallel interface with asynchronous read access times of 90 ns or 120 ns. The device operates on a single 12.0V ± 5% programming and erase voltage supply, while the main VCC supply ranges from 4.75V to 5.25V for the -90 variant. It supports commercial temperature ranges and utilizes an internal command register for program and erase operations.

Memory IC Feature Summary

• Supports in-system code updates through electrical erasure and reprogramming capabilities
• Features pin and timing compatibility with standard EPROM and E2PROM devices
• Includes integrated stop timers for automatic control of program and erase cycles
• Provides hardware data protection via electronic signatures and lockout architectures

Memory IC Applications

• In-system firmware updates for embedded controllers
• After-sale code storage and modification
• Industrial equipment configuration memory
• Automotive system parameter storage

Memory IC Procurement Notes

Verify the specific suffix 'L' corresponds to the PDIP package and 'I' indicates the industrial temperature range as defined in the ordering information table. Confirm that the '-12' designation matches the required 120 ns access time specification. Ensure the component meets the necessary lead-free and halogen-free requirements if specified by the design constraints.

Memory IC Selection Notes

Select this component when a high-speed parallel NOR flash interface is required for legacy system compatibility. The device is suitable for applications needing frequent byte-level programming and chip erasure. Consider the 32-pin DIP package availability for through-hole mounting requirements. Evaluate power consumption differences between CMOS and TTL logic levels during active standby states.

Memory IC Part Context

This part belongs to the CAT28F series of 2 Megabit CMOS Flash memories manufactured using advanced floating gate technology. The series offers various speed grades and package options including PLCC, TSOP, and DIP. It serves as a licensed Intel second source alternative for standard JEDEC pinouts, ensuring broad interoperability across different platform designs.

Memory IC Replacement Considerations

Direct substitutes include other CAT28F020 variants with different speed grades (e.g., -90) or packages (e.g., NI-12). Cross-brand replacements must match the 256K x 8 organization, 12V programming voltage, and 32-pin footprint. Verify command set compatibility for seamless integration without schematic modifications.