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M25P40英文datasheet
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M25P40.pdf 英文文档
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Micron M25P40 Serial Flash Embedded
Memory
4Mb, 3V
Features
• SPI bus-compatible serial interface
• 4Mb Flash memory
• 75 MHz clock frequency (maximum)
• 2.3V to 3.6V single supply voltage
• Page program (up to 256 bytes) in 0.8ms (TYP)
• Erase capability
– Sector erase: 512Kb in 0.6 s (TYP)
– Bulk erase: 4Mb in 4.5 s (TYP)
• Write protection
– Hardware write protection: protected area size
defined by nonvolatile bits BP0, BP1, BP2
• Deep power-down: 1µA (TYP)
• Electronic signature
– JEDEC-standard 2-byte signature (2013h)
– Unique ID code (UID) with 16-byte read-only
space, available upon request
– RES command, one-byte signature (12h) for
backward compatibility
• More than 100,000 write cycles per sector
• Automotive-grade parts available
• Packages (RoHS-compliant)
– SO8N (MN) 150 mils
– SO8W (MW) 208 mils
– VFDFPN8 (MP) MLP8 6mm x 5mm
– UFDFPN8 (MC) MLP8 4mm x 3mm
– UFDFPN8 (MB) MLP8 2mm x 3mm
Micron M25P40 Serial Flash Embedded Memory
Features
PDF: 09005aef8456654f
m25p40.pdf - Rev. Z 1/13 EN
1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2011 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.
Contents
Functional Description ..................................................................................................................................... 6
Signal Descriptions ........................................................................................................................................... 8
SPI Modes ........................................................................................................................................................ 9
Operating Features ......................................................................................................................................... 11
Page Programming ..................................................................................................................................... 11
Sector Erase, Bulk Erase .............................................................................................................................. 11
Polling during a Write, Program, or Erase Cycle ............................................................................................ 11
Active Power, Standby Power, and Deep Power-Down .................................................................................. 11
Status Register ............................................................................................................................................ 12
Data Protection by Protocol ........................................................................................................................ 12
Software Data Protection ............................................................................................................................ 12
Hardware Data Protection .......................................................................................................................... 12
Hold Condition .......................................................................................................................................... 13
Configuration and Memory Map ..................................................................................................................... 14
Memory Configuration and Block Diagram .................................................................................................. 14
Memory Map – 4Mb Density ........................................................................................................................... 15
Command Set Overview ................................................................................................................................. 16
WRITE ENABLE .............................................................................................................................................. 18
WRITE DISABLE ............................................................................................................................................. 19
READ IDENTIFICATION ................................................................................................................................. 20
READ STATUS REGISTER ................................................................................................................................ 21
WIP Bit ...................................................................................................................................................... 22
WEL Bit ...................................................................................................................................................... 22
Block Protect Bits ....................................................................................................................................... 22
SRWD Bit ................................................................................................................................................... 22
WRITE STATUS REGISTER .............................................................................................................................. 23
READ DATA BYTES ......................................................................................................................................... 25
READ DATA BYTES at HIGHER SPEED ............................................................................................................ 26
PAGE PROGRAM ............................................................................................................................................ 27
SECTOR ERASE .............................................................................................................................................. 28
BULK ERASE .................................................................................................................................................. 29
DEEP POWER-DOWN ..................................................................................................................................... 30
RELEASE from DEEP POWER-DOWN .............................................................................................................. 31
READ ELECTRONIC SIGNATURE .................................................................................................................... 32
Power-Up/Down and Supply Line Decoupling ................................................................................................. 33
Power-Up Timing and Write Inhibit Voltage Specifications ............................................................................... 35
Maximum Ratings and Operating Conditions .................................................................................................. 36
Electrical Characteristics ................................................................................................................................ 37
AC Characteristics .......................................................................................................................................... 39
Package Information ...................................................................................................................................... 47
Device Ordering Information .......................................................................................................................... 52
Standard Parts ............................................................................................................................................ 52
Automotive Parts ........................................................................................................................................ 53
Revision History ............................................................................................................................................. 55
Rev. Z – 1/13 ............................................................................................................................................... 55
Rev. Y – 8/12 ............................................................................................................................................... 55
Rev. X – 04/12 ............................................................................................................................................. 55
Rev. W – 03/12 ............................................................................................................................................ 55
Rev. V – 02/12 ............................................................................................................................................. 55
Rev. U – 09/2011 ......................................................................................................................................... 55
Micron M25P40 Serial Flash Embedded Memory
Features
PDF: 09005aef8456654f
m25p40.pdf - Rev. Z 1/13 EN
2
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2011 Micron Technology, Inc. All rights reserved.
Rev. 20.0 – 04/2010 ..................................................................................................................................... 55
Rev. 19.0 – 02/2010 ..................................................................................................................................... 55
Rev. 18.0 – 05/2009 ..................................................................................................................................... 55
Rev. 17.0 – 02/2009 ..................................................................................................................................... 56
Rev. 16.0 – 10/2008 ..................................................................................................................................... 56
Rev. 15.0 – 12/2007 ..................................................................................................................................... 56
Rev. 14.0 – 06/2007 ..................................................................................................................................... 56
Rev. 13.0 – 05/2007 ..................................................................................................................................... 56
Rev. 12.0 – 01/2007 ..................................................................................................................................... 56
Rev. 11.0 – 12/2006 ..................................................................................................................................... 57
Rev. 10.0 – 06/2006 ..................................................................................................................................... 57
Rev. 9.0 – 04/2006 ....................................................................................................................................... 57
Rev. 8.0 – 12/2005 ....................................................................................................................................... 57
Rev. 7.0 – 10/2005 ....................................................................................................................................... 57
Rev. 6.0 – 08/2005 ....................................................................................................................................... 57
Rev. 5.0 – 01/2005 ....................................................................................................................................... 57
Rev. 4.0 – 08/2004 ....................................................................................................................................... 58
Rev. 3.0 – 03/2004 ....................................................................................................................................... 58
Rev. 2.0 – 11/2003 ....................................................................................................................................... 58
Rev. 1.0 – 06/2003 ....................................................................................................................................... 58
Micron M25P40 Serial Flash Embedded Memory
Features
PDF: 09005aef8456654f
m25p40.pdf - Rev. Z 1/13 EN
3
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2011 Micron Technology, Inc. All rights reserved.
List of Figures
Figure 1: Logic Diagram ................................................................................................................................... 6
Figure 2: Pin Connections: SO8, MLP8 ............................................................................................................. 7
Figure 3: SPI Modes Supported ........................................................................................................................ 9
Figure 4: Bus Master and Memory Devices on the SPI Bus ............................................................................... 10
Figure 5: Hold Condition Activation ............................................................................................................... 13
Figure 6: Block Diagram ................................................................................................................................ 14
Figure 7: WRITE ENABLE Command Sequence .............................................................................................. 18
Figure 8: WRITE DISABLE Command Sequence ............................................................................................. 19
Figure 9: READ IDENTIFICATION Command Sequence ................................................................................. 20
Figure 10: READ STATUS REGISTER Command Sequence .............................................................................. 21
Figure 11: Status Register Format ................................................................................................................... 21
Figure 12: WRITE STATUS REGISTER Command Sequence ............................................................................. 23
Figure 13: READ DATA BYTES Command Sequence ........................................................................................ 25
Figure 14: READ DATA BYTES at HIGHER SPEED Command Sequence ........................................................... 26
Figure 15: PAGE PROGRAM Command Sequence ........................................................................................... 27
Figure 16: SECTOR ERASE Command Sequence ............................................................................................. 28
Figure 17: BULK ERASE Command Sequence ................................................................................................. 29
Figure 18: DEEP POWER-DOWN Command Sequence ................................................................................... 30
Figure 19: RELEASE from DEEP POWER-DOWN Command Sequence ............................................................. 31
Figure 20: READ ELECTRONIC SIGNATURE Command Sequence .................................................................. 32
Figure 21: Power-Up Timing .......................................................................................................................... 34
Figure 22: AC Measurement I/O Waveform ..................................................................................................... 39
Figure 23: Serial Input Timing ........................................................................................................................ 45
Figure 24: Write Protect Setup and Hold during WRSR when SRWD=1 Timing ................................................. 45
Figure 25: Hold Timing .................................................................................................................................. 46
Figure 26: Output Timing .............................................................................................................................. 46
Figure 27: SO8N 150 mils Body Width ............................................................................................................ 47
Figure 28: SO8W 208 mils Body Width ............................................................................................................ 48
Figure 29: VFDFPN8 (MLP8) 6mm x 5mm ...................................................................................................... 49
Figure 30: UFDFPN8 (MLP8) 4mm x 3mm ...................................................................................................... 50
Figure 31: UFDFPN8 (MLP8) 2mm x 3mm ...................................................................................................... 51
Micron M25P40 Serial Flash Embedded Memory
Features
PDF: 09005aef8456654f
m25p40.pdf - Rev. Z 1/13 EN
4
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2011 Micron Technology, Inc. All rights reserved.
List of Tables
Table 1: Signal Names ...................................................................................................................................... 7
Table 2: Signal Descriptions ............................................................................................................................. 8
Table 3: Protected Area Sizes .......................................................................................................................... 12
Table 4: Sectors[7:0] ...................................................................................................................................... 15
Table 5: Command Set Codes ........................................................................................................................ 17
Table 6: READ IDENTIFICATION Data Out Sequence ..................................................................................... 20
Table 7: Status Register Protection Modes ...................................................................................................... 24
Table 8: Power-Up Timing and V
WI
Threshold ................................................................................................. 35
Table 9: Absolute Maximum Ratings .............................................................................................................. 36
Table 10: Operating Conditions ...................................................................................................................... 36
Table 11: Data Retention and Endurance ........................................................................................................ 36
Table 12: DC Current Specifications (Device Grade 6) ..................................................................................... 37
Table 13: DC Voltage Specifications (Device Grade 6) ...................................................................................... 37
Table 14: DC Current Specifications (Device Grade 3) ..................................................................................... 37
Table 15: DC Voltage Specifications (Device Grade 3) ...................................................................................... 38
Table 16: Device Grade and AC Table Correlation ............................................................................................ 39
Table 17: AC Measurement Conditions ........................................................................................................... 39
Table 18: Capacitance .................................................................................................................................... 39
Table 19: Instruction Times, Process Technology 110nm ................................................................................. 40
Table 20: Instruction Times, Process Technology 150nm ................................................................................. 40
Table 21: AC Specifications (25 MHz, Device Grade 3, V
CC
[min]=2.7V) ............................................................. 40
Table 22: AC Specifications (50 MHz, Device Grade 6, V
CC
[min]=2.7V) ............................................................. 41
Table 23: AC Specifications (40 MHz, Device Grade 6, V
CC
[min]=2.3V) ............................................................. 42
Table 24: AC Specifications (75MHz, Device Grade 3 and 6, V
CC
[min]=2.7V) .................................................... 44
Table 25: Part Number Example ..................................................................................................................... 52
Table 26: Part Number Information Scheme ................................................................................................... 52
Table 27: Part Number Example ..................................................................................................................... 53
Table 28: Part Number Information Scheme ................................................................................................... 53
Micron M25P40 Serial Flash Embedded Memory
Features
PDF: 09005aef8456654f
m25p40.pdf - Rev. Z 1/13 EN
5
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2011 Micron Technology, Inc. All rights reserved.
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