參數(shù)資料
型號: S29WS064J
廠商: Spansion Inc.
英文描述: 128/64 Megabit (8/4 M x 16-Bit) CMOS 1.8 Volt-only Simultaneous Read/Write, Burst Mode Flash Memory
中文描述: 128/64兆位(8 / 4米× 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): 29/98頁
文件大?。?/td> 1986K
代理商: S29WS064J
June 24, 2005 S29WS-J_00_A4
S29WS128J/064J
29
D a t a S h e e t
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+- $C3!@@3!@@3% "
$C3 !@@3 !@@3%
Figure 3. Lock Register Program Algorithm
Write Unlock Cycles:
Address 555h, Data AAh
Address 2AAh, Data 55h
Write
Enter Lock Register Command:
Address 555h, Data 40h
Program Lock Register Data
Address XXXh, Data A0h
Address 77h*, Data PD
Unlock Cycle 1
Unlock Cycle 2
XXXh = Address don’t care
* Not on future devices
Program Data (PD): See text for Lock Register
definitions
Caution:
Lock register can only be progammed
once.
Wait 4
μ
s
PASS. Write Lock Register
Exit Command:
Address XXXh, Data 90h
Address XXXh, Data 00h
Device returns to reading array.
Perform Polling Algorithm
(see Write Operation Status
flowchart)
Yes
Yes
No
No
Done
DQ5 = 1
Error condition (Exceeded Timing Limits)
FAIL. Write rest command
to return to reading array.
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