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M25P20 Serial Flash Embedded Memory

Features

Micron M25P20 2Mb 3V Serial Flash

Embedded Memory

Features

•

SPI bus compatible serial interface

2Mb 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 0.6s (TYP)

– Bulk erase: 3s (TYP)

• Hardware write protection: protected area size de-

fined by non-volatile bits BP0 and BP1

• Deep power down: 1µA (TYP)

• Electronic signature

– JEDEC standard 2-byte signature (2012h)

– Unique ID code (UID) and 16 bytes read-only,

available upon customer request

• READ ELECTRONIC SIGNATURE command, one-

byte signature (11h), for backward compability

• More than 20 years data retention

• Automotive grade parts available

• Packages (RoHS compliant)

– SO8N (MN) 150 mils

– V-PDFN8 (MP) MLP8 6mm x 5mm

PDF: 09005aef8456656e

m25p20.pdf - Rev. B 10/13 EN

Products and specifications discussed herein are subject to change by Micron without notice.

Micron Technology, Inc. reserves the right to change products or specifications without notice.

M25P20 Serial Flash Embedded Memory

Features

Contents

Functional Description ..................................................................................................................................... 5

Signal Descriptions ........................................................................................................................................... 7

SPI Modes ........................................................................................................................................................ 8

Operating Features ......................................................................................................................................... 10

Page Programming ..................................................................................................................................... 10

Sector Erase, Bulk Erase .............................................................................................................................. 10

Polling during a Write, Program, or Erase Cycle ............................................................................................ 10

Active Power, Standby Power, and Deep Power-Down .................................................................................. 10

Status Register ............................................................................................................................................ 11

Data Protection by Protocol ........................................................................................................................ 11

Software Data Protection ............................................................................................................................ 11

Hardware Data Protection .......................................................................................................................... 11

Hold Condition .......................................................................................................................................... 11

Configuration and Memory Map ..................................................................................................................... 13

Memory Configuration and Block Diagram .................................................................................................. 13

Memory Map – 2Mb Density ........................................................................................................................... 14

Command Set Overview ................................................................................................................................. 15

WRITE ENABLE .............................................................................................................................................. 17

WRITE DISABLE ............................................................................................................................................. 18

READ IDENTIFICATION ................................................................................................................................. 19

READ STATUS REGISTER ................................................................................................................................ 20

WIP Bit ...................................................................................................................................................... 21

WEL Bit ...................................................................................................................................................... 21

Block Protect Bits ....................................................................................................................................... 21

SRWD Bit ................................................................................................................................................... 21

WRITE STATUS REGISTER .............................................................................................................................. 22

READ DATA BYTES ......................................................................................................................................... 24

READ DATA BYTES at HIGHER SPEED ............................................................................................................ 25

PAGE PROGRAM ............................................................................................................................................ 26

SECTOR ERASE .............................................................................................................................................. 27

BULK ERASE .................................................................................................................................................. 28

DEEP POWER-DOWN ..................................................................................................................................... 29

RELEASE from Deep Power-Down ................................................................................................................... 30

Power-Up/Down and Supply Line Decoupling ................................................................................................. 31

Power-Up Timing and Write Inhibit Voltage Threshold Specifications ............................................................... 33

Maximum Ratings and Operating Conditions .................................................................................................. 34

Electrical Characteristics ................................................................................................................................ 35

AC Characteristics .......................................................................................................................................... 37

Package Information ...................................................................................................................................... 41

Device Ordering Information .......................................................................................................................... 43

Standard Parts ............................................................................................................................................ 43

Automotive Parts ........................................................................................................................................ 44

Revision History ............................................................................................................................................. 45

Rev. B – 10/2013 ......................................................................................................................................... 45

Rev. A – 2/2013 ........................................................................................................................................... 45

PDF: 09005aef8456656e

m25p20.pdf - Rev. B 10/13 EN

Micron Technology, Inc. reserves the right to change products or specifications without notice.

M25P20 Serial Flash Embedded Memory

Features

List of Figures

Figure 1: Logic Diagram ................................................................................................................................... 5

Figure 2: Pin Connections: SO8 and MLP8 ........................................................................................................ 6

Figure 3: SPI Modes Supported ........................................................................................................................ 8

Figure 4: Bus Master and Memory Devices on the SPI Bus ................................................................................. 9

Figure 5: Hold Condition Activation ............................................................................................................... 12

Figure 6: Block Diagram ................................................................................................................................ 13

Figure 7: WRITE ENABLE Command Sequence .............................................................................................. 17

Figure 8: WRITE DISABLE Command Sequence ............................................................................................. 18

Figure 9: READ IDENTIFICATION Command Sequence ................................................................................. 19

Figure 10: READ STATUS REGISTER Command Sequence .............................................................................. 20

Figure 11: Status Register Format ................................................................................................................... 20

Figure 12: WRITE STATUS REGISTER Command Sequence ............................................................................. 22

Figure 13: READ DATA BYTES Command Sequence ........................................................................................ 24

Figure 14: READ DATA BYTES at HIGHER SPEED Command Sequence ........................................................... 25

Figure 15: PAGE PROGRAM Command Sequence ........................................................................................... 26

Figure 16: SECTOR ERASE Command Sequence ............................................................................................. 27

Figure 17: BULK ERASE Command Sequence ................................................................................................. 28

Figure 18: DEEP POWER-DOWN Command Sequence ................................................................................... 29

Figure 19: RELEASE from Deep Power-Down Sequence .................................................................................. 30

Figure 20: Power-Up Timing .......................................................................................................................... 32

Figure 21: AC Measurement I/O Waveform ..................................................................................................... 37

Figure 22: Serial Input Timing ........................................................................................................................ 39

Figure 23: Write Protect Setup and Hold during WRSR when SRWD = 1 Timing ................................................ 39

Figure 24: Hold Timing .................................................................................................................................. 40

Figure 25: Output Timing .............................................................................................................................. 40

Figure 26: SO8N 150 mils Body Width ............................................................................................................ 41

Figure 27: V-PDFN8 6mm x 5mm ................................................................................................................... 42

PDF: 09005aef8456656e

m25p20.pdf - Rev. B 10/13 EN

Micron Technology, Inc. reserves the right to change products or specifications without notice.

M25P20 Serial Flash Embedded Memory

Features

List of Tables

Table 1: Signal Names ...................................................................................................................................... 6

Table 2: Signal Descriptions ............................................................................................................................. 7

Table 3: Protected Area Sizes .......................................................................................................................... 11

Table 4: Sectors 3:0 ........................................................................................................................................ 14

Table 5: Command Set Codes ........................................................................................................................ 16

Table 6: READ IDENTIFICATION Data Out Sequence ..................................................................................... 19

Table 7: Status Register Protection Modes ...................................................................................................... 23

Table 8: Power-Up Timing and V

Threshold ................................................................................................. 33

Table 9: Absolute Maximum Ratings .............................................................................................................. 34

Table 10: Operating Conditions ...................................................................................................................... 34

Table 11: Data Retention and Endurance ........................................................................................................ 34

Table 12: DC Current Specifications (Device Grade 6) ..................................................................................... 35

Table 13: DC Current Specifications (Device Grade 3) ..................................................................................... 35

Table 14: DC Voltage Specifications ................................................................................................................ 35

Table 15: Instruction Times, Process Technology (Device Grade 6) .................................................................. 36

Table 16: Instruction Times (Device Grade 3)

1, 2

.............................................................................................. 36

Table 17: AC Measurement Conditions ........................................................................................................... 37

Table 18: Capacitance .................................................................................................................................... 37

Table 19: AC Specifications (75 MHz, Device Grade 6, V

min = 2.7V) ............................................................. 38

Table 20: Part Number Information Scheme ................................................................................................... 43

Table 21: Part Number Information Scheme ................................................................................................... 44

PDF: 09005aef8456656e

m25p20.pdf - Rev. B 10/13 EN

Micron Technology, Inc. reserves the right to change products or specifications without notice.

M25P20 Serial Flash Embedded Memory

Functional Description

The M25P20 is a 2Mb (256Kb x 8) serial Flash memory device with advanced write pro-

tection mechanisms accessed by a high speed SPI-compatible bus. The device supports

high-performance commands for clock frequency up to 75MHz.

Note:

75 MHz operation is available only on the V

range 2.7V–3.6V.

The memory can be programmed 1 to 256 bytes at a time, using the PAGE PROGRAM

command.

The memory is organized as 4 sectors, each containing 256 pages. Each page is 256

bytes wide. Thus, the whole memory can be viewed as consisting of 1024 pages, or

262,144 bytes.

The whole memory can be erased using the BULK ERASE command, or a sector at a

time, using the SECTOR ERASE command.

In order to meet environmental requirements, these devices RoHS-compliant.

Figure 1: Logic Diagram

VCC

DQ0

HOLD#

DQ1

VSS

PDF: 09005aef8456656e

m25p20.pdf - Rev. B 10/13 EN

Micron Technology, Inc. reserves the right to change products or specifications without notice.

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