AT29C010A-90JI

Memory IC Overview

The AT29C010A-90JI is a 5-volt-only in-system Flash programmable and erasable read-only memory (PEROM) manufactured by Microchip Technology. It features a 1-megabit capacity organized as 131,072 words by 8 bits. The device offers a maximum access time of 90 ns with an active current of 50 mA and standby current of 300 µA. It utilizes a 32-lead Plastic J-leaded Chip Carrier (PLCC) package and supports industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports sector-based programming with internal address and data latches for 128-byte operations
• Includes hardware and software data protection mechanisms to prevent inadvertent writes
• Features two designated 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 storage for embedded systems
• Secure code storage in boot blocks for system initialization
• Nonvolatile data retention for industrial control applications

Memory IC Procurement Notes

Verify the specific suffix 'JI' corresponds to the Industrial temperature range (-40°C to +85°C) and PLCC package configuration. Confirm that the component meets RoHS compliance requirements if applicable to your manufacturing standards. Ensure compatibility with existing board layouts designed for 32-lead PLCC footprints before finalizing procurement decisions.

Memory IC Selection Notes

Select this component when a 90 ns access speed is required within the industrial temperature range. Consider the PLCC package form factor for surface-mount assembly processes. Evaluate the need for boot block lockout features if secure startup code storage is necessary. Verify that the 5V supply voltage aligns with the target system's power architecture.

Memory IC Part Context

This part belongs to the AT29C010A series of 1-megabit NOR Flash memories. The series includes variants with different access times and temperature ratings. The manufacturer transitioned from Atmel to Microchip Technology. This specific model represents the industrial grade option with a 90 ns speed class.

Memory IC Replacement Considerations

Compatible substitutes include AT29C010A-70JI for faster access or AT29C010A-12JI for slower timing options within the same package. Cross-referencing pinouts and electrical characteristics is essential when substituting components.