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| AM29BDS320G Datasheet, PDF (71/74 Pages) SPANSION – 32 Megabit (2 M x 16-Bit), 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory | |||
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Preliminary
AC Characteristics
Last Cycle in
Program or
Sector Erase
Command Sequence
tWC
CE#
Read status (at least two cycles) in same bank
and/or array data from other bank
tRC
tRC
Begin another
write or program
command sequence
tWC
OE#
WE#
Data
tWPH
tOE
tOEH
tWP
tDS
PD/30h
tACC
tDH
tOEZ
tOEH
RD
tGHWL
RD
AAh
Addresses
PA/SA
tAS
tSR/W
RA
RA
555h
AVD#
tAH
Note: Breakpoints in waveforms indicate that system may alternately read array data from the ânon-busy bankâ while
checking the status of the program or erase operation in the âbusyâ bank. The system should read status twice to ensure
valid information.
Figure 33. Back-to-Back Read/Write Cycle Timings
October 1, 2003 27243B1
Am29BDS320G
69
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