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X76F640A Datasheet(PDF) 4 Page - IC MICROSYSTEMS

Part # X76F640A
Description  Secure Serial Flash
Download  17 Pages
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Manufacturer  ICMIC [IC MICROSYSTEMS]
Direct Link  http://www.icmic.com
Logo ICMIC - IC MICROSYSTEMS

X76F640A Datasheet(HTML) 4 Page - IC MICROSYSTEMS

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X76F640
4
Figure 2. Data Validity
Figure 3. Definition of Start and Stop Conditions
Table 1. X76F640 Instruction Set
Notes:Illegal command codes will be disregarded. The part will respond with a “no-A CK” to the illegal byte and then return to the standby mode.
All write/read operations require a password.
1st Byte
after Start
1st Byte
after
Password
2nd Byte
after
Password
Command Description
Password
used
1000 0000
High Address
Low address
Read (Array 0)
Read 0
1000 1000
High Address
Low address
Read (Array 1)
Read 1
1001 0000
High Address
Low address
Sector Write (Array 0)
Write 0
1001 1000
High Address
Low address
Sector Write (Array 1)
Write 1
1010 0000
0000 0000
0000 0000
Change Read 0 Password
Read 0
1010 1000
0000 0000
0000 0000
Change Read 1 Password
Read 1
1011 0000
0000 0000
0000 0000
Change Write 0 Password
Write 0
1011 1000
0000 0000
0000 0000
Change Write 1 Password
Write 1
1100 0000
0000 0000
0000 0000
Change Reset Password
Reset
1110 0000
not used
not used
Reset Password Command
Reset
1110 1000
not used
not used
Reset Device Command
Reset
1111 0000
not used
not used
ACK Polling command (Ends Password operation)
None
All the rest
Reserved
SCL
SDA
Data Stable
Data
Change
7025 FM 04
SCL
SDA
Start Condition
Stop Condition
7025 FM 05
7025 FM T04


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