M25P40 Datasheet – 3V, 4Mb, Serial Flash Memory – Micron

Part Number: M25P40

Function: 4 Mbit, low voltage, serial Flash memory with 50 MHz SPI bus interface


Manufacturer: Micron Technology

Image and Pinouts:

M25P40 datasheet



The M25P40 is an 4Mb (512Kb x 8) serial Flash memory device with advanced writeprotection mechanisms accessed by a high-speed SPI-compatible bus. The device supports high-performance commands for clock frequency up to 75MHz. The memory can be programmed 1 to 256 bytes at a time using the PAGE PROGRAM command. It is organized as 8 sectors, each containing 256 pages. Each page is 256 bytes wide. The entire memory can be erased using the BULK ERASE command, or it can be erased one sector at a time using the SECTOR ERASE command.


1. SPI bus-compatible serial interface

2. 4Mb Flash memory

3. 75 MHz clock frequency (maximum)

4. 2.3V to 3.6V single supply voltage

5. Page program (up to 256 bytes) in 0.8ms (TYP)

Other data sheets are available within the file: M25P40VMN6TP, M25P40VMN6TP/X, M25P40-VMP6TP

M25P40 Datasheet PDF

M25P40 pdf