Important Notes and Warnings ......................................................................................................................... 6
Features ....................................................................................................................................................... 7
3-Byte Address and 4-Byte Address Modes ..................................................................................................... 7
Signal Assignments ........................................................................................................................................... 9
Signal Descriptions ......................................................................................................................................... 11
Block Protection Areas ................................................................................................................................ 16
Serial Peripheral Interface Modes .................................................................................................................... 18
Nonvolatile and Volatile Registers ................................................................................................................... 21
Status Register ............................................................................................................................................ 22
Nonvolatile and Volatile Configuration Registers .......................................................................................... 22
Flag Status Register ..................................................................................................................................... 27
READ MEMORY Operations Timing – Single Transfer Rate ........................................................................... 47
READ MEMORY Operations Timing – Double Transfer Rate ......................................................................... 51
PROGRAM Operations .................................................................................................................................... 54
Activate or Terminate XIP Using Volatile Configuration Register ...................................................................
Activate or Terminate XIP Using Nonvolatile Configuration Register .............................................................
Confirmation Bit Settings Required to Activate or Terminate XIP ..................................................................
Terminating XIP After a Controller and Memory Reset .................................................................................
Power Up and Power Down .............................................................................................................................
Power Up and Power Down Requirements ...................................................................................................
Power Loss Recovery Sequence ...................................................................................................................
Initial Delivery Status .....................................................................................................................................
AC Reset Specifications ...................................................................................................................................
Absolute Ratings and Operating Conditions .....................................................................................................
DC Characteristics and Operating Conditions ..................................................................................................
AC Characteristics and Operating Conditions ..................................................................................................
Part Number Ordering Information .................................................................................................................
Revision History .............................................................................................................................................
Rev. X – 06/18 .............................................................................................................................................
Rev. W – 11/16 ............................................................................................................................................
Rev. V – 05/16 .............................................................................................................................................
Rev. U – 01/15 .............................................................................................................................................
Rev. T – 03/14 .............................................................................................................................................
Rev. S – 11/13 .............................................................................................................................................
Rev. R – 09/13 .............................................................................................................................................
Rev. P – 01/13 .............................................................................................................................................
Rev. O – 12/12 .............................................................................................................................................
Rev. N – 11/12 .............................................................................................................................................
Rev. M – 09/12 ............................................................................................................................................
Rev. L – 08/12 .............................................................................................................................................
Rev. K – 07/12 .............................................................................................................................................
Rev. I – 01/12 ..............................................................................................................................................
Rev. H – 11/11 .............................................................................................................................................
Rev. G – 07/11 .............................................................................................................................................
Rev. F – 07/11 .............................................................................................................................................
Rev. E – 05/11 .............................................................................................................................................
Rev. D – 05/11 .............................................................................................................................................
Rev. C – 11/10 .............................................................................................................................................
Rev. B – 08/10 .............................................................................................................................................
Rev. A – 06/10 .............................................................................................................................................
09005aef84566603
n25q_256mb_65nm.pdf - Rev. X 06/18 EN
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Micron Technology, Inc. reserves the right to change products or specifications without notice.
Table 1: Signal Descriptions ...........................................................................................................................
Table 15: Extended Address Register Bit Definitions ........................................................................................
Table 16: Enhanced Volatile Configuration Register Bit Definitions ..................................................................
Table 17: Flag Status Register Bit Definitions ..................................................................................................
Table 18: Command Set .................................................................................................................................
Table 20: Data/Address Lines for READ ID and MULTIPLE I/O READ ID Commands .......................................
Table 21: Read ID Data Out ............................................................................................................................
Table 22: Extended Device ID, First Byte .........................................................................................................
Table 23: Serial Flash Discovery Parameter Data Structure ..............................................................................
Table 24: Parameter ID ..................................................................................................................................
Table 25: Command/Address/Data Lines for READ MEMORY Commands .......................................................
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