参数资料
型号: ES29BDS400ET-90RTGI
厂商: 优先(苏州)半导体有限公司
英文描述: 4Mbit(512Kx 8/256K x 16) CMOS 3.0 Volt-only, Boot Sector Flash Memory
中文描述: 的4Mb(512Kx 8/256K × 16),3.0伏的CMOS只,引导扇区闪存
文件页数: 5/51页
文件大小: 697K
代理商: ES29BDS400ET-90RTGI
ES I
13
Rev.0B January 5, 2006
ES29LV400E
Excel Semiconductor inc.
No
Yes
No
SET A9=OE#=VID
Remove VID from
A9 and Write
Reset Command
Sector Protection
Complete
Set Sector Address
A<17 :12>
CE#, A6, A0=VIL
RESET#, A1=VIH
Protect Another
Sector ?
Read Data
Data = 01h?
CE#,OE#,A6,A0=VIL
RESET#, A1 = VIH
SET WE# = VIL
Start
COUNT = 1
Wait 150 us
SET WE# = VIH
Increase COUNT
COUNT= 25?
Device failed
Yes
No
Yes
No
SET A9=OE#=VID
Remove VID from A9 and
Write Reset Command
Sector Unprotection
Complete
Set Sector AddressA<17 :12>
Read Data
SET WE# = VIL
COUNT = 1
SET WE# = VIH
Start
Note: All sectors must be
previously protected.
Wait 15ms
CE#,OE#, A0=VIL
RESET#, A6, A1=VIH
Data = 00h?
The Last Sector
Address ?
Yes
No
Increase Sector
Address
Increase COUNT
Device failed
COUNT=1000?
CE#, A0=VIL ,
RESET#,
A6, A1=VIH
Figure 5. Sector Un-Protection Algorithm
(A9 High-Voltage Method)
Figure 4. Sector Protection Algorithm
(A9 High-Voltage Method)
A9 High-Voltage Method
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ES29BDS400FB-12RTG 制造商:EXCELSEMI 制造商全称:EXCELSEMI 功能描述:32Mbit(4M x 8/2M x 16) CMOS 3.0 Volt-only, Boot Sector Flash Memory
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