參數(shù)資料
型號(hào): 27LV002CB-90
廠商: Macronix International Co., Ltd.
英文描述: 2M-BIT [256K x 8] CMOS SINGLE VOLTAGE 3V ONLY FLASH MEMORY
中文描述: 200萬位[256K × 8] CMOS單電壓3V時(shí)僅閃存
文件頁數(shù): 37/58頁
文件大?。?/td> 528K
代理商: 27LV002CB-90
37
P/N:PM1204
MX29LV002C/002NC T/B
REV. 1.0, JUN. 30, 2005
Figure 17. IN-SYSTEM SECTOR UNPROTECTION ALGORITHM WITH RESET#=VID
START
PLSCNT=1
First Write
Cycle=60H
Yes
No
RESET#=VID
Wait 1us
Set up first sector address
Chip unprotect :
write 60H with
A6=1, A1=1, A0=0
Verify chip unprotect
write 40H to sector address
with A6=1, A1=1, A0=0
Wait 50ms
Increment PLSCNT
Read from sector address
with A6=1, A1=1, A0=0
Remove VID from RESET#
Temporary Sector
Unprotect Mode
Set up next sector address
All sector
protected
Yes
Data=00H
Yes
Yes
Yes
No
No
No
No
Protect all sectors
PLSCNT=1000
Last sector
verified
Write reset command
Chip unprotect complete
Device failed
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