M25P20-VMP6

Memory IC Overview

The M25P20-VMP6 is a 2 Mbit (256K x 8) Serial Flash memory device manufactured by Numonyx, now part of Micron Technology. It features a high-speed SPI-compatible bus interface with a maximum clock rate of 75 MHz at VCC voltages between 2.7 V and 3.6 V. The device 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 typical time, sector erase of 512 Kbit in 0.6 s, and bulk erase of the entire 2 Mbit array in 3 s. The memory is organized into four sectors, each containing 256 pages of 256 bytes. It includes hardware write protection via BP0 and BP1 bits and offers a deep power-down mode with typical current consumption of 1 μA.

Memory IC Feature Summary

• Supports high-speed serial communication via an SPI-compatible bus interface with clock rates up to 75 MHz.
• Features advanced hardware write protection mechanisms allowing specific memory areas to be configured as read-only using non-volatile status register bits.
• Includes a deep power-down mode for significant energy savings when the device is not in active use.
• Provides electronic signatures including a JEDEC standard two-byte signature and a unique ID code available upon request.

Memory IC Applications

• Embedded systems requiring non-volatile storage for firmware or configuration data
• Industrial control applications needing reliable data retention and write protection
• Consumer electronics utilizing low-voltage serial flash memory

Memory IC Procurement Notes

Verify the manufacturer origin, as this component was originally produced by Numonyx before its acquisition by Micron. Confirm the specific package variant corresponds to the MP suffix (VFQFPN-8) and ensure the voltage range requirements match your system design. Check for ECOPACK compliance if environmental regulations are applicable.

Memory IC Selection Notes

Select this component for designs requiring a 2 Mbit capacity with SPI interface compatibility. Ensure the operating voltage falls within the 2.3 V to 3.6 V range. Consider the 75 MHz speed limit which applies specifically to the 2.7 V to 3.6 V range; lower voltages may reduce maximum frequency. Verify that the VFQFPN-8 package fits your PCB layout constraints.

Memory IC Part Context

The M25P20 series belongs to the family of low-voltage Serial Flash memories designed for embedded applications. It utilizes advanced process technologies (T7Y and T9HX) to offer improved performance and extended voltage ranges compared to earlier generations. The device is backward compatible with previous versions while adding features like higher clock speeds and UID protection.

Memory IC Replacement Considerations

M25PE20-VMN6TP

Memory IC FAQ

What is the difference between the T7Y and T9HX process technologies for the M25P20?

The T9HX process technology offers an extended Vcc range (2.3-3.6V), improved max frequency (Fast Read) up to 75 MHz in the standard Vcc range, and additional UID/CFD protection features compared to the T7Y process.

How does the hardware write protection work on the M25P20?

Hardware write protection is achieved by combining the Write Protect (W) signal with the Status Register Write Disable (SRWD) bit. This allows the Block Protect (BP1, BP0) bits to be locked, preventing changes to the protected area size via software.