M25PE40 Serial Flash Memory Features M25PE40 4Mb 3V NOR Serial Flash Memory Serial Flash Memory with Byte Alterability, 75 MHz SPI bus, Standard Pinout Features 4Mb of page-erasable Flash memory 2.7V to 3.6V single supply voltage SPI bus-compatible serial interface 75 MHz clock rate (maximum) Page size: 256 bytes Page write in 11ms (TYP) Page program in 0.8ms (TYP) Page erase in 10ms (TYP) Subsector erase: 4KB Sector erase: 64KB Bulk erase: 4Mb Deep power-down mode: 1A (TYP) Electronic signature JEDEC standard 2-byte signature (8013h) Software write-protection on a 64KB sector basis Hardware write protection of the memory area se- lected using the BP0, BP1, and BP2 bits More than 100,000 write cycles More than 20 years of data retention Packages (RoHS compliant) VFQFPN8 (MP) 6mm x 5mm (MLP8) SO8W (MW) 208 mils SO8N (MN) 150 mils Automotive grade parts available PDF: 09005aef845660f0 Micron Technology, Inc. reserves the right to change products or specifications without notice. 1 m25pe40.pdf - Rev. C 3/13 EN 2013 Micron Technology, Inc. All rights reserved. Products and specifications discussed herein are subject to change by Micron without notice.M25PE40 Serial Flash Memory Features Contents Functional Description ..................................................................................................................................... 5 Signal Descriptions ........................................................................................................................................... 7 SPI Modes ........................................................................................................................................................ 8 Operating Features ......................................................................................................................................... 10 Sharing the overhead of modifying data ...................................................................................................... 10 An easy way to modify data ......................................................................................................................... 10 A fast way to modify data ............................................................................................................................ 10 Polling during a Write, Program, or Erase Cycle ............................................................................................ 11 Reset .......................................................................................................................................................... 11 Active Power, Standby Power, and Deep Power-Down .................................................................................. 11 Status Register ............................................................................................................................................ 11 Protection Modes ....................................................................................................................................... 11 Specific Hardware and Software Protection ................................................................................................. 12 Memory Organization .................................................................................................................................... 14 Command Set Overview ................................................................................................................................. 17 WRITE ENABLE .............................................................................................................................................. 19 WRITE DISABLE ............................................................................................................................................. 20 READ IDENTIFICATION ................................................................................................................................. 21 READ STATUS REGISTER ................................................................................................................................ 22 WIP Bit ...................................................................................................................................................... 22 WEL Bit ...................................................................................................................................................... 22 Block Protect Bits ....................................................................................................................................... 23 SRWD Bit ................................................................................................................................................... 23 WRITE STATUS REGISTER .............................................................................................................................. 24 READ DATA BYTES ......................................................................................................................................... 26 READ DATA BYTES at HIGHER SPEED ............................................................................................................ 27 READ LOCK REGISTER ................................................................................................................................... 28 PAGE WRITE .................................................................................................................................................. 29 PAGE PROGRAM ............................................................................................................................................ 31 WRITE to LOCK REGISTER ............................................................................................................................. 33 PAGE ERASE ................................................................................................................................................... 34 SUBSECTOR ERASE ....................................................................................................................................... 35 SECTOR ERASE .............................................................................................................................................. 36 BULK ERASE .................................................................................................................................................. 37 DEEP POWER-DOWN ..................................................................................................................................... 38 RELEASE from DEEP POWER-DOWN .............................................................................................................. 39 Power-Up and Power-Down ............................................................................................................................ 40 RESET ............................................................................................................................................................ 42 Initial Delivery State ....................................................................................................................................... 42 Maximum Ratings and Operating Conditions .................................................................................................. 43 DC Parameters ............................................................................................................................................... 44 AC Characteristics .......................................................................................................................................... 45 Package Information ...................................................................................................................................... 51 Device Ordering Information .......................................................................................................................... 53 Revision History ............................................................................................................................................. 54 Rev. C 3/2013 ........................................................................................................................................... 54 Rev. B 11/2012 ......................................................................................................................................... 54 Rev. A 09/2012 .......................................................................................................................................... 54 PDF: 09005aef845660f0 Micron Technology, Inc. reserves the right to change products or specifications without notice. 2 m25pe40.pdf - Rev. C 3/13 EN 2013 Micron Technology, Inc. All rights reserved.