am42bds6408h Meet Spansion Inc., am42bds6408h Datasheet - Page 81

• Manufacturer Part Number: am42bds6408h
• Description: Cmos 1.8 Volt-only Simultaneous Read/write, Burst Mode Flash Memory, And 8 Mbit 512 K X 16-bit Sram
• Manufacturer: Meet Spansion Inc.

AC CHARACTERISTICS
Note: Breakpoints in waveforms indicate that system may alternately read array data from the “non-busy bank” while checking
the status of the program or erase operation in the “busy” bank. The system should read status twice to ensure valid information.
October 23, 2003
Addresses
AVD#
WE#
Data
OE#
CE#
t
WPH
Command Sequence
PA/SA
t
AS
Last Cycle in
Sector Erase
Program or
t
WC
Figure 46. Back-to-Back Read/Write Cycle Timings
t
WP
PD/30h
t
A D V A N C E
t
AH
DS
t
t
t
OEH
DH
OE
t
RA
SR/W
t
ACC
Read status (at least two cycles) in same bank
Am42BDS6408H
t
RC
and/or array data from other bank
I N F O R M A T I O N
RD
t
OEZ
t
OEH
RA
t
RC
RD
t
command sequence
GHWL
write or program
555h
Begin another
t
WC
AAh
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