M29F040B90N6

Memory IC Overview

The M29F040B90N6 is a 4 Mbit (512K x 8) NOR Flash memory IC manufactured by Micron Technology Inc. It features a parallel interface with an access time of 90 ns and is housed in a 32-pin TSOP package. The device operates on a single 5V supply voltage for read, program, and erase operations. It supports asynchronous operation and includes embedded algorithms for byte programming and multi-block/chip erasing. The component offers erase suspend and resume modes, allowing other blocks to be accessed during these processes.

Memory IC Feature Summary

• Supports single 5V supply voltage for all operations
• Includes embedded program and erase controllers
• Enables erase suspend and resume functionality

Memory IC Applications

• Embedded code storage in industrial systems
• Firmware storage for consumer electronics
• Data retention in communication equipment

Memory IC Procurement Notes

Verify the obsolete status and lead times carefully as this part may no longer be in active production. Confirm moisture sensitivity level and reflow soldering profiles if handling surface-mount components. Ensure compatibility with existing board layouts due to the specific 32-TSOP package dimensions and pinout configuration.

Memory IC Selection Notes

Select this component when a 4 Mbit capacity with 90 ns access speed is required. It is suitable for designs needing uniform block architecture and single-voltage operation. Consider alternative packages like PLCC if different form factors are needed, or faster access times if system performance demands it.

Memory IC Part Context

This part belongs to the M29F series of NOR Flash memories from Micron. It shares architectural similarities with other variants in the family, differing primarily in access speed, package type, and block organization. The 'N' suffix typically denotes the TSOP package option within this product line.

Memory IC Replacement Considerations

Direct substitutes include M29F040B70N6 (70 ns access) or M29F040B55N6 (55 ns access) for faster performance. For package variations, consider M29F040B90K1 (PLCC-32). Verify electrical compatibility and pin assignments before substitution.