參數(shù)資料
型號: AM29BDS643D
廠商: Advanced Micro Devices, Inc.
英文描述: 64 Megabit (4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
中文描述: 64兆位(4個M x 16位)的CMOS 1.8伏,只有同時讀/寫,突發(fā)模式閃存
文件頁數(shù): 42/46頁
文件大?。?/td> 693K
代理商: AM29BDS643D
42
Am29BDS643D
P R E L I M I N A R Y
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.
Figure 21.
Back-to-Back Read/Write Cycle Timings
OE#
CE#
WE#
t
OH
A/DQ0:
A/DQ15
A16:
A21
AVD#
PD/30h
PA/SA
AAh
555h
RA
PA/SA
t
WC
t
DS
t
DH
t
RC
t
RC
t
OE
t
OEH
t
AS
t
AH
t
ACC
t
WP
t
GHWL
t
DF
t
WC
t
SR/W
Last Cycle in
Program or
Sector Erase
Command Sequence
Read status (at least two cycles) in same bank
and/or array data from other bank
Begin another
write or program
command sequence
RD
RA
RA
RA
RD
t
WPH
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