Signal Descriptions ........................................................................................................................................... 8
Serial Peripheral Interface Modes ...................................................................................................................... 9
Operating Features ......................................................................................................................................... 11
Dual Input Fast Program ............................................................................................................................. 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 .......................................................................................................................... 13
Hold Condition .......................................................................................................................................... 14
Memory Configuration and Block Diagram ...................................................................................................... 15
Memory Map – 64Mb Density ......................................................................................................................... 16
Command Set Overview ................................................................................................................................. 17
READ STATUS REGISTER ................................................................................................................................ 22
WIP Bit ...................................................................................................................................................... 23
WEL Bit ...................................................................................................................................................... 23
Top/Bottom Bit .......................................................................................................................................... 23
SRWD Bit ................................................................................................................................................... 23
WRITE STATUS REGISTER .............................................................................................................................. 24
READ DATA BYTES ......................................................................................................................................... 26
READ DATA BYTES at HIGHER SPEED ............................................................................................................ 27
DUAL OUTPUT FAST READ ............................................................................................................................ 28
PAGE PROGRAM ............................................................................................................................................ 31
DUAL INPUT FAST PROGRAM ........................................................................................................................ 32
PROGRAM OTP .............................................................................................................................................. 33
WRITE to LOCK REGISTER ............................................................................................................................. 35
DEEP POWER-DOWN ..................................................................................................................................... 39
RELEASE from DEEP POWER-DOWN .............................................................................................................. 40
Power-Up/Down and Supply Line Decoupling ................................................................................................. 41
Maximum Ratings and Operating Conditions .................................................................................................. 43
AC Characteristics .......................................................................................................................................... 45
Package Information ...................................................................................................................................... 51
Device Ordering Information .......................................................................................................................... 55
Revision History ............................................................................................................................................. 56
Rev. B – 3/2013 ........................................................................................................................................... 56
Rev. A – 6/2012 ........................................................................................................................................... 56
PDF: 09005aef845665ac
m25px64.pdf - Rev. B 3/13 EN
2
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Figure 12: READ STATUS REGISTER Command Sequence .............................................................................. 22
Figure 13: Status Register Format ................................................................................................................... 22
Figure 14: WRITE STATUS REGISTER Command Sequence ............................................................................. 24
Figure 15: READ DATA BYTES Command Sequence ........................................................................................ 26
Figure 16: READ DATA BYTES at HIGHER SPEED Command Sequence ........................................................... 27
Figure 17: DUAL OUTPUT FAST READ Command Sequence ........................................................................... 28
Table 15: Data Retention and Endurance ........................................................................................................ 43
Table 16: Power Up Timing Specifications ...................................................................................................... 44
Table 17: DC Current Specifications ............................................................................................................... 44
Table 18: DC Voltage Specifications ................................................................................................................ 44
Table 19: AC Measurement Conditions ........................................................................................................... 45
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