參數(shù)資料
型號(hào): 29LV160B
廠(chǎng)商: Advanced Micro Devices, Inc.
元件分類(lèi): DRAM
英文描述: 16 Megabit (2 M x 8-Bit/1 M x 16-Bit) CMOS 3.0 Volt-only Boot Sector Flash Memory
中文描述: 16Mb(2M×8位/1Mx16位), 3V, CMOS引導(dǎo)扇區(qū)閃存
文件頁(yè)數(shù): 41/63頁(yè)
文件大?。?/td> 762K
代理商: 29LV160B
41
P/N:PM1041
MX29LV160BT/BB
REV. 1.2, JUL. 01, 2004
R
Figure 15. IN-SYSTEM CHIP UNPROTECTION ALGORITHM WITH RESET=VID
START
PLSCNT=1
First Write
Cycle=60H
Yes
No
RESET=VID
Wait 1us
Set up first sector address
Sector unprotect :
write 60H with
A6=1, A1=1, A0=0
Verify sector 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
Sector unprotect complete
Device failed
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