參數(shù)資料
型號: S29WS128N0LBFW010
廠商: SPANSION LLC
元件分類: PROM
英文描述: 256/128/64 MEGABIT CMOS 1.8 VOLT ONLY SIMULTANEOUS READ/WRITE BURST MODE FLASH MEMORY
中文描述: 8M X 16 FLASH 1.8V PROM, 70 ns, PBGA84
封裝: 11.60 X 8 MM, LEAD FREE, PLASTIC, FBGA-84
文件頁數(shù): 50/95頁
文件大小: 1745K
代理商: S29WS128N0LBFW010
54
S29WSxxxN_00_F0 October 29, 2004
Pr e l i m i n a r y
Figure 8.2. 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 data may only be progammed once.
Wait 4
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
No
Done?
DQ5 = 1?
Error condition (Exceeded Timing Limits)
FAIL. Write rest command
to return to reading array.
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