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. D 1/18 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 Important Notes and Warnings ......................................................................................................................... 6 Functional Description ..................................................................................................................................... 7 Signal Descriptions ........................................................................................................................................... 9 SPI Modes ...................................................................................................................................................... 10 Operating Features ......................................................................................................................................... 12 Sharing the overhead of modifying data ...................................................................................................... 12 An easy way to modify data ......................................................................................................................... 12 A fast way to modify data ............................................................................................................................ 12 Polling during a Write, Program, or Erase Cycle ............................................................................................ 13 Reset .......................................................................................................................................................... 13 Active Power, Standby Power, and Deep Power-Down .................................................................................. 13 Status Register ............................................................................................................................................ 13 Protection Modes ....................................................................................................................................... 13 Specific Hardware and Software Protection ................................................................................................. 14 Memory Organization .................................................................................................................................... 16 Command Set Overview ................................................................................................................................. 19 WRITE ENABLE .............................................................................................................................................. 21 WRITE DISABLE ............................................................................................................................................. 22 READ IDENTIFICATION ................................................................................................................................. 23 READ STATUS REGISTER ................................................................................................................................ 24 WIP Bit ...................................................................................................................................................... 24 WEL Bit ...................................................................................................................................................... 24 Block Protect Bits ....................................................................................................................................... 25 Block Protect Bits ....................................................................................................................................... 25 Block Protect Bits ....................................................................................................................................... 25 SRWD Bit ................................................................................................................................................... 25 SRWD Bit ................................................................................................................................................... 26 SRWD Bit ................................................................................................................................................... 27 WRITE STATUS REGISTER .............................................................................................................................. 28 READ DATA BYTES ......................................................................................................................................... 30 READ DATA BYTES at HIGHER SPEED ............................................................................................................ 31 READ LOCK REGISTER ................................................................................................................................... 32 PAGE WRITE .................................................................................................................................................. 34 PAGE PROGRAM ............................................................................................................................................ 36 WRITE to LOCK REGISTER ............................................................................................................................. 38 PAGE ERASE ................................................................................................................................................... 41 SUBSECTOR ERASE ....................................................................................................................................... 42 SECTOR ERASE .............................................................................................................................................. 43 BULK ERASE .................................................................................................................................................. 44 DEEP POWER-DOWN ..................................................................................................................................... 45 RELEASE from DEEP POWER-DOWN .............................................................................................................. 46 Power-Up and Power-Down ............................................................................................................................ 47 RESET ............................................................................................................................................................ 49 Initial Delivery State ....................................................................................................................................... 49 Maximum Ratings and Operating Conditions .................................................................................................. 50 DC Parameters ............................................................................................................................................... 51 AC Characteristics .......................................................................................................................................... 52 Package Information ...................................................................................................................................... 58 Device Ordering Information .......................................................................................................................... 60 Revision History ............................................................................................................................................. 62 PDF: 09005aef845660f0 Micron Technology, Inc. reserves the right to change products or specifications without notice. 2 m25pe40.pdf - Rev. D 1/18 EN 2013 Micron Technology, Inc. All rights reserved.