參數(shù)資料
型號: MX29F040TC-70
廠商: MACRONIX INTERNATIONAL CO LTD
元件分類: DRAM
英文描述: 4M-BIT [512KX8] CMOS EQUAL SECTOR FLASH MEMORY
中文描述: 512K X 8 FLASH 5V PROM, 70 ns, PDSO32
封裝: 8 X 20 MM, PLASTIC, MO-142, TSOP1-32
文件頁數(shù): 27/39頁
文件大小: 872K
代理商: MX29F040TC-70
27
P/N:PM0538
REV. 1.6, AUG. 08, 2001
MX29F040
CHIP UNPROTECTION ALGORITHM FOR SYSTEM WITH 12V
START
Protect All Sectors
PLSCNT=1
Chip Unprotect
Complete
Data=00H
Toggle bit checking
Q6 not Toggled
Yes
Yes
Write "unlock for sector protect/unprotect"
Command (Table 1)
Set OE=A9=VIH
CE=VIL,A6=1
Activate WE Pulse to start
Data do'nt 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
No
Increment
Sector Addr
* It is recommended before unprotect whole chip, all sectors should be protected in advance.
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