256Mb: 3V Embedded Parallel NOR Flash
Features
List of Figures
Figure 1: Logic Diagram ................................................................................................................................... 7
Figure 2: 56-Pin TSOP (Top View) .................................................................................................................... 8
Figure 3: 64-Ball Fortified BGA and 64-Ball TBGA ............................................................................................. 9
Figure 4: Data Polling Flowchart .................................................................................................................... 16
Figure 5: Toggle Bit Flowchart ........................................................................................................................ 17
Figure 6: Status Register Polling Flowchart ..................................................................................................... 18
Figure 7: Lock Register Program Flowchart ..................................................................................................... 20
Figure 8: WRITE TO BUFFER PROGRAM Flowchart ........................................................................................ 30
Figure 9: ENHANCED BUFFERED PROGRAM Flowchart ................................................................................ 34
Figure 10: Program/Erase Nonvolatile Protection Bit Algorithm ...................................................................... 43
Figure 11: Software Protection Scheme .......................................................................................................... 48
Figure 12: Power-Up Timing .......................................................................................................................... 53
Figure 13: Reset AC Timing – No PROGRAM/ERASE Operation in Progress ...................................................... 54
Figure 14: Reset AC Timing During PROGRAM/ERASE Operation .................................................................... 55
Figure 15: AC Measurement Load Circuit ....................................................................................................... 57
Figure 16: AC Measurement I/O Waveform ..................................................................................................... 57
Figure 17: Random Read AC Timing (8-Bit Mode) ........................................................................................... 61
Figure 18: Random Read AC Timing (16-Bit Mode) ......................................................................................... 61
Figure 19: Page Read AC Timing (16-Bit Mode) ............................................................................................... 62
Figure 20: WE#-Controlled Program AC Timing (8-Bit Mode) .......................................................................... 64
Figure 21: WE#-Controlled Program AC Timing (16-Bit Mode) ......................................................................... 65
Figure 22: CE#-Controlled Program AC Timing (8-Bit Mode) ........................................................................... 67
Figure 23: CE#-Controlled Program AC Timing (16-Bit Mode) ......................................................................... 68
Figure 24: Chip/Block Erase AC Timing (8-Bit Mode) ...................................................................................... 69
Figure 25: Accelerated Program AC Timing ..................................................................................................... 70
Figure 26: Data Polling AC Timing .................................................................................................................. 71
Figure 27: Toggle/Alternative Toggle Bit Polling AC Timing (8-Bit Mode) .......................................................... 71
Figure 28: 56-Pin TSOP – 14mm x 20mm ........................................................................................................ 73
Figure 29: 64-Ball TBGA – 10mm x 13mm ....................................................................................................... 74
Figure 30: 64-Ball Fortified BGA – 11mm x 13mm ........................................................................................... 75
PDF: 09005aef84bd3b68
m29w_256mb.pdf - Rev. C 7/13 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
5
© 2013 Micron Technology, Inc. All rights reserved.
MICRON [ MICRON TECHNOLOGY ]
