AT29C020-12JI

Memory IC Overview

The AT29C020-12JI is a 5-volt-only in-system Flash programmable and erasable read-only memory (PEROM) manufactured by Microchip Technology. It provides 2 megabits of storage organized as 262,144 bytes (256K x 8). The device features an asynchronous parallel interface with a maximum access time of 120 ns. It operates on a single 5V ±10% supply voltage and supports industrial temperature ranges from -40°C to +85°C. Key electrical characteristics include a maximum active current of 40 mA and a standby current of 300 µA.

Memory IC Feature Summary

• Supports sector-based programming with internal control timers for erase and program cycles.
• Includes hardware and software data protection mechanisms to prevent inadvertent writes.
• Features two 8K-byte boot blocks with independent programming lockout capabilities.
• Provides DATA polling and toggle bit functions for end-of-program cycle detection.

Memory IC Applications

• In-system reprogrammable code storage
• Hardware and software data protection implementations
• Boot block programming lockout applications

Memory IC Procurement Notes

Verify the manufacturer designation and package type against official documentation before procurement. Confirm that the specific ordering suffix matches the required speed grade and temperature range. Ensure compliance with export regulations if applicable. Check for any product discontinuation notices or lifecycle status updates prior to finalizing orders.

Memory IC Selection Notes

Select this component when a 5-volt-only Flash memory solution with sector-level granularity is required. Consider the 120 ns access time for system timing constraints. Evaluate the need for boot block lockout features if secure code execution is critical. Verify compatibility with existing TTL/CMOS logic levels and power supply specifications.

Memory IC Part Context

This part belongs to the AT29C020 series of 2-megabit Flash memories. It is designed for applications requiring nonvolatile storage with in-system reprogrammability. The device utilizes advanced CMOS technology to offer low power consumption while maintaining high performance. It serves as a direct replacement for older EPROM technologies in various embedded systems.

Memory IC Replacement Considerations

Public confirmed substitute part numbers: AT29C020-12JC, AT29C020-12PC, AT29C020-12TC, AT29C020-15JI, AT29C020-15JC, AT29C020-15PC, AT29C020-15TC, AT29C020-70JI, AT29C020-70JC, AT29C020-70PC, AT29C020-70TC, AT29C020-90JI, AT29C020-90JC, AT29C020-90PC, AT29C020-10JI, AT29C020-10JC, AT29C020-10PC.