參數(shù)資料
型號: W78M32VP110BM
廠商: WHITE ELECTRONIC DESIGNS CORP
元件分類: PROM
英文描述: 8M X 32 FLASH 3.3V PROM, 110 ns, PBGA159
封裝: 13 X 22 MM, 1.27 MM PITCH, PLASTIC, BGA-159
文件頁數(shù): 31/51頁
文件大?。?/td> 1637K
代理商: W78M32VP110BM
37
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
W78M32VP-XBX
January 2010
Rev. 12
White Electronic Designs Corp. reserves the right to change products or specications without notice.
FIG: 11 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 XXXh*, Data PD
Unlock Cycle 1
Unlock Cycle 2
XXXh = Address don’t care
Program Data (PD): See text for Lock Register definitions
Caution: Lock register can only be progammed once.
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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