Signal Descriptions ........................................................................................................................................... 7
Operating Features ......................................................................................................................................... 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
READ STATUS REGISTER ................................................................................................................................ 20
WIP Bit ...................................................................................................................................................... 21
WEL Bit ...................................................................................................................................................... 21
SRWD Bit ................................................................................................................................................... 21
WRITE STATUS REGISTER .............................................................................................................................. 22
READ DATA BYTES ......................................................................................................................................... 24
READ DATA BYTES at HIGHER SPEED ............................................................................................................ 25
PAGE PROGRAM ............................................................................................................................................ 26
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
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
2
Micron Technology, Inc. reserves the right to change products or specifications without notice.
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
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
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