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X76F640A Datasheet(PDF) 4 Page - IC MICROSYSTEMS |
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X76F640A Datasheet(HTML) 4 Page - IC MICROSYSTEMS |
4 / 17 page 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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Similar Description - X76F640A |
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