Important Notes and Warnings ......................................................................................................................... 7
General Description ......................................................................................................................................... 8
Signal Assignments ........................................................................................................................................... 9
Signal Descriptions ......................................................................................................................................... 12
Bus Operations ............................................................................................................................................... 15
Data Polling Register .................................................................................................................................. 17
Program Operations ....................................................................................................................................... 33
PROGRAM Command ................................................................................................................................ 33
UNLOCK BYPASS PROGRAM Command ..................................................................................................... 33
WRITE TO BUFFER PROGRAM Command .................................................................................................. 33
UNLOCK BYPASS WRITE TO BUFFER PROGRAM Command ....................................................................... 36
WRITE TO BUFFER PROGRAM CONFIRM Command .................................................................................. 36
BUFFERED PROGRAM ABORT AND RESET Command ................................................................................ 36
PROGRAM SUSPEND Command ................................................................................................................ 36
PROGRAM RESUME Command .................................................................................................................. 37
ACCELERATED BUFFERED PROGRAM Operations .......................................................................................... 37
Common Flash Interface ................................................................................................................................
Power-Up and Reset Characteristics ................................................................................................................
Absolute Ratings and Operating Conditions .....................................................................................................
DC Characteristics ..........................................................................................................................................
Read AC Characteristics ..................................................................................................................................
Write AC Characteristics .................................................................................................................................
Data Polling/Toggle AC Characteristics ............................................................................................................
Revision History .............................................................................................................................................
Rev. G –05/18 .............................................................................................................................................
Rev. F – 11/16 .............................................................................................................................................
Rev. E – 4/16 ...............................................................................................................................................
Rev. D – 5/15 ..............................................................................................................................................
Rev. C – 4/15 ...............................................................................................................................................
Rev. B – 1/15 ...............................................................................................................................................
Rev. A – 6/14 ...............................................................................................................................................
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PDF: 09005aef85477990
mt28e-W256-ABA-S-IT.pdf - Rev. G 05/18 EN
4
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Figure 1: Part Number Chart ............................................................................................................................ 2
Figure 15: Reset AC Timing – No PROGRAM/ERASE Operation in Progress ...................................................... 58
Figure 16: Reset AC Timing During PROGRAM/ERASE Operation .................................................................... 58
Figure 17: AC Measurement Load Circuit ....................................................................................................... 60
Figure 18: AC Measurement I/O Waveform ..................................................................................................... 60
Figure 19: Random Read AC Timing (8-Bit Mode) ........................................................................................... 64
Figure 20: Random Read AC Timing (16-Bit Mode) ......................................................................................... 65
Figure 21: BYTE# Transition Read AC Timing .................................................................................................. 65
Figure 22: Page Read AC Timing (16-Bit Mode) ............................................................................................... 66
Figure 23: WE#-Controlled Program AC Timing (8-Bit Mode) .......................................................................... 68
Figure 24: WE#-Controlled Program AC Timing (16-Bit Mode) ......................................................................... 69
Figure 25: CE#-Controlled Program AC Timing (8-Bit Mode) ........................................................................... 71
Figure 26: CE#-Controlled Program AC Timing (16-Bit Mode) ......................................................................... 72
Figure 27: Chip/Block Erase AC Timing (16-Bit Mode) .................................................................................... 73
Figure 28: Accelerated Program AC Timing ..................................................................................................... 73
Figure 29: Data Polling AC Timing .................................................................................................................. 74
Figure 30: Toggle/Alternative Toggle Bit Polling AC Timing .............................................................................. 75
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