MX29GL640ELT2I-90G

Memory IC Overview

The MX29GL640ELT2I-90G is a 64 Mbit (8M x 8 or 4M x 16) single-voltage NOR flash memory manufactured by Macronix. It operates within a voltage range of 2.7 V to 3.6 V and features an asynchronous parallel interface with a maximum access time of 90 ns. The device utilizes a 48-pin TSOP package and supports both byte and word modes. It includes sector protection, hardware write protect capabilities, and a security sector.

Memory IC Feature Summary

• Supports switchable 8-bit and 16-bit data bus widths for flexible system integration.
• Includes advanced sector protection functions allowing for solid and password-based locking mechanisms.
• Features a dedicated extra 128-word sector that is factory locked and identifiable for security purposes.

Memory IC Applications

• Code storage in embedded systems requiring direct execution from memory.
• BIOS and firmware storage in industrial control equipment.
• Data retention applications in consumer electronics devices.

Memory IC Procurement Notes

Verify the specific suffix 'LT2I' against the manufacturer's current ordering guide to confirm pinout compatibility and temperature grade. Ensure the 90 ns speed grade matches the system timing requirements. Confirm RoHS compliance status if required by local regulations.

Memory IC Selection Notes

Select this component when a 64 Mbit capacity with top-boot sector architecture is required. The 90 ns access time suits moderate-speed applications. Consider the 48-pin TSOP form factor for PCB layout constraints. Verify that the 2.7 V to 3.6 V operating voltage aligns with the target system power supply.

Memory IC Part Context

This part belongs to the MX29GL640E series of single-voltage NOR flash memories. It shares architectural similarities with other members like the MX29GL640ET and MX29GL640EB, differing primarily in boot sector configuration and package type. The 'L' typically denotes the 56-pin TSOP variant in some contexts, but datasheet mapping for 'LT2I' indicates a specific 48-pin TSOP configuration.

Memory IC Replacement Considerations

MX29GL640ETI-90G

Memory IC FAQ

What is the sector architecture of the MX29GL640ELT2I-90G?

It features a mixed sector architecture consisting of 127 sectors of 64 KB each and 8 sectors of 8 KB each, designed for top-boot code storage.

Does the device support hardware write protection?

Yes, it includes a WP#/ACC input pin that provides hardware write protection capabilities when driven to a low logic level.