FLASH
AS8F512K32
Austin Semiconductor, Inc.
Flow Chart 2.
Sector Unprotect Algorithm
Start
Protect All Sectors
X=1
CE,OE,A9=VID
A6, A12, A16=VIH
Apply One
10 ms Pulse
CE, OE, A0 = VIL
A6, A1 = VIH
X = X+1
Select Sector Address
A18, A17, A16 = VIL
Read Data
No
No
Next Sector Address
X = 1000
Data = 00
Yes
Yes
No
Last Sector?
Sector-unprotect Failed
Yes
A9=VIH or VIL
Write Reset Command
End
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
AS8F512K32
Rev. 4.0 6/01
7