M29F400BB70N3T

Memory IC Overview

The M29F400BB70N3T is a 4 Mbit (512 K x 8 or 256 K x 16) NOR Flash memory component manufactured by STMicroelectronics. It features a parallel asynchronous interface with a maximum access time of 70 ns. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an industrial temperature range from -40°C to +125°C. It is housed in a 48-TSOP package, specifically identified as 48-TFSOP with a width of 18.40 mm.

Memory IC Feature Summary

• Supports dual data bus configurations for 8-bit and 16-bit operations via parallel interface
• Capable of simultaneous read and program/erase operations
• Includes hardware-based write protection mechanisms

Memory IC Applications

• Code execution in place (XIP) applications
• Storage of firmware and boot code
• Embedded system data storage

Memory IC Procurement Notes

Verify the specific suffix N3T against official datasheets to confirm the exact package variant and temperature grade. Ensure compatibility with existing board layouts regarding the 48-TSOP footprint. Confirm that the 4.5 V to 5.5 V operating voltage aligns with the target system's power rails. Check for RoHS compliance status if required by regional regulations.

Memory IC Selection Notes

Select this component when a 4 Mbit capacity with 70 ns speed is required for 5 V systems. The wide industrial temperature range makes it suitable for harsh environments. Consider the TSOP-48 package dimensions for PCB space constraints. Verify that the parallel interface matches the microcontroller or processor bus architecture.

Memory IC Part Context

This part belongs to the M29F series of NOR Flash memories, designed for high-reliability embedded applications. It offers non-volatile storage with fast random access capabilities. The series is known for supporting standard JEDEC flash commands, ensuring broad software compatibility across various controller platforms.

Memory IC Replacement Considerations

Check for direct pin-compatible replacements within the same M29F family. Verify if alternative speeds or voltage ranges are acceptable. Ensure any substitute maintains the 48-TSOP package form factor.