M29W640GST70ZF6E

Memory IC Overview

The M29W640GST70ZF6E is a 64-megabit (8M x 8 or 4M x 16) parallel NOR flash memory manufactured by Micron Technology Inc. It operates within a supply voltage range of 2.7V to 3.6V and supports asynchronous random access with speeds of 60ns, 70ns, or 90ns. The device features a page width of 4 words and utilizes a 64-ball FBGA package measuring 11mm x 13mm with a 1mm pitch. It includes embedded program/erase controllers and hardware block protection.

Memory IC Feature Summary

• Supports fast program commands including 2-word/4-byte programming without Vpp and 4-word/8-byte programming with Vpp.
• Features an embedded program/erase controller for byte/word program algorithms.
• Provides hardware block protection via the Vpp/WP# pin and temporary block unprotect mode.
• Allows read from any block during PROGRAM SUSPEND operations.

Memory IC Applications

• Embedded code storage in industrial control systems
• Firmware storage for network infrastructure equipment
• Data logging in automotive electronic control units

Memory IC Procurement Notes

Verify the specific speed grade suffix (e.g., T70) against the required system timing constraints. Confirm that the 64-ball FBGA package dimensions match the PCB footprint design. Ensure the manufacturing source is authorized to guarantee RoHS compliance and traceability for critical applications.

Memory IC Selection Notes

Select this component when a 64Mb capacity with parallel interface is required. Consider the 70ns access time for system clock compatibility. Evaluate the need for Vpp support if faster programming speeds are necessary compared to standard single-voltage operation.

Memory IC Part Context

This part belongs to the M29W640 family of parallel NOR flash memories. It shares architectural similarities with variants like the M29W640GT and M29W640GL, differing primarily in package type and speed grade. The family is designed for high-reliability code execution and data storage.

Memory IC Replacement Considerations

Check for direct substitutes within the M29W640 series such as M29W640GT or M29W640GL variants. Verify pinout compatibility and electrical specifications before substituting with other manufacturers' 64Mb parallel NOR flash devices.