參數(shù)資料
型號: MX29F200TTI-90
廠商: MACRONIX INTERNATIONAL CO LTD
元件分類: DRAM
英文描述: 2M-BIT [256Kx8/128Kx16] CMOS FLASH MEMORY
中文描述: 128K X 16 FLASH 5V PROM, 90 ns, PDSO48
封裝: 12 X 20 MM, PLASTIC, MO-142, TSOP1-48
文件頁數(shù): 39/46頁
文件大?。?/td> 720K
代理商: MX29F200TTI-90
39
P/N:PM0549
REV. 1.3 , DEC. 24, 2001
MX29F200T/B
SECTOR UNPROTECTION ALGORITHM FOR SYSTEM WITHOUT 12V
START
Protect All Sectors
PLSCNT=1
Chip Unprotect
Complete
Data=00H
Yes
Set OE=A9=VIH
CE=VIL,A6=1
Activate WE Pulse to start
Data don't care
Set OE=CE=VIL
A9=VIH,A1=1
Set Up First Sector Addr
All sectors have
been verified
Write Reset Command
Device Failed
PLSCNT=1000
No
Increment
PLSCNT
No
Read Data from Device
Yes
Yes
No
Increment
Sector Addr
* It is recommended before unprotect the whole chip, all sectors should be protected in advance.
Write "unlock for sector protect/unprotect"
Command (Table 1)
Toggle bit checking
DQ6 not Toggled
Yes
No
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