256Mb: 3V Embedded Parallel NOR Flash
Accelerated Program, Data Polling/Toggle AC Characteristics
Figure 26: Data Polling AC Timing
t
t
t
t
CH
CE
HZ/ DF
CE#
OE#
t
t
OPH
OE
t
OEH
WE#
DQ7
Valid DQ7
Data
Data
DQ7#
DQ7#
Valid
DQ[6:0] Data
DQ[6:0] Data
Output flag
Output flag
t
BUSY
RY/BY#
1. DQ7 returns a valid data bit when the PROGRAM or ERASE command has completed.
Notes:
2. See the following tables for timing details: Read AC Characteristics, Accelerated Pro-
gram and Data Polling/Data Toggle AC Characteristics.
Figure 27: Toggle/Alternative Toggle Bit Polling AC Timing (8-Bit Mode)
A[MAX:0]/
A–1
t
t
AHT
ASO
CE#
WE#
OE#
t
t
t
OEH
AHT
ASO
t
t
t
OPH
EPH
OPH
t
t
t
DH
Data
OE
CE
Stop
toggling
Output
Valid
DQ6/DQ2
RY/BY#
Toggle
Toggle
Toggle
t
BUSY
1. DQ6 stops toggling when the PROGRAM or ERASE command has completed. DQ2 stops
toggling when the CHIP ERASE or BLOCK ERASE command has completed.
Notes:
2. See the following tables for timing details: Read AC Characteristics, Accelerated Pro-
gram and Data Polling/Data Toggle AC Characteristics.
PDF: 09005aef84bd3b68
m29w_256mb.pdf - Rev. C 7/13 EN
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