M25P40-VMN6TP TR

Memory IC Overview

The M25P40-VMN6TP TR is a 4 Mbit (512 K × 8) Serial Flash memory device manufactured by Micron Technology Inc. It features a SPI bus compatible serial interface with a maximum clock rate of 75 MHz. The component operates on a single supply voltage ranging from 2.3 V to 3.6 V. It supports page programming of up to 256 bytes in 0.8 ms and sector erase of 512 Kbit in 0.6 s. The device includes hardware write protection defined by three non-volatile bits and offers a deep power-down mode with typical current consumption of 1 µA.

Memory IC Feature Summary

• Supports high-speed SPI communication with a maximum clock frequency of 75 MHz for efficient data transfer.
• Includes advanced hardware write protection mechanisms allowing specific memory areas to be configured as read-only.
• Features a deep power-down mode that significantly reduces current consumption when the device is not in active use.

Memory IC Applications

• Embedded systems requiring non-volatile code storage
• Industrial control applications needing reliable data retention
• Consumer electronics utilizing low-voltage operation

Memory IC Procurement Notes

Verify the exact revision status and process technology (110 nm vs 150 nm) against the latest manufacturer documentation, as performance specifications such as maximum clock frequency vary between these versions. Confirm RoHS compliance and package type availability through authorized distributors, as supply chain conditions may affect lead times and stock levels.

Memory IC Selection Notes

Select this component for designs requiring a 4 Mbit capacity with standard SPI interface compatibility. Ensure the system voltage falls within the 2.3 V to 3.6 V operating range. Consider the 75 MHz speed capability only if the supply voltage is maintained at or above 2.7 V and the specific 110 nm process variant is utilized.

Memory IC Part Context

This part belongs to the M25P series of low-voltage serial flash memories. It is designed for applications demanding high performance and robust data protection. The device is available in various packages including SOIC and MLP formats, catering to different space constraints and thermal requirements in modern electronic assemblies.

Memory IC Replacement Considerations

Check for backward compatibility with existing firmware when substituting with other M25P series variants. Verify pinout consistency across different package options within the same family to ensure direct replacement feasibility without PCB redesign.

Memory IC FAQ

What determines the maximum clock frequency of the M25P40?

The maximum clock frequency depends on the supply voltage and the manufacturing process. 75 MHz operation is supported at 2.7 V to 3.6 V for devices using the 110 nm process technology.

How is hardware write protection implemented in this device?

Hardware write protection is managed via the Write Protect (W) signal, which freezes the protected area size defined by the BP2, BP1, and BP0 bits in the Status Register.