DS1972 Maxim, DS1972 Datasheet - Page 21

• Manufacturer Part Number: DS1972
• Description: The DS1972 is a 1024-bit, 1-Wire® EEPROM chip organized as four memory pages of 256 bits each in a rugged iButton® package
• Manufacturer: Maxim

Write Scratchpad (Cannot Fail)
Read Scratchpad (Cannot Fail)
Copy Scratchpad (Success)
Copy Scratchpad (Invalid Address or PF = 1 or Copy Protected)
Read Memory (Success)
Read Memory (Invalid Address)
RST PD Select WS TA <8–T[2:0] bytes> CRC-16 FF Loop
RST PD Select RS TA-E/S <8–T[2:0] bytes> CRC-16 FF Loop
RST PD Select CPS TA-E/S Programming AA Loop
RST PD Select CPS TA-E/S FF Loop
RST PD Select RM TA <Data to EOM> FF Loop
RST PD Select RM TA FF Loop
Master to Slave
Command-Specific 1-Wire Communication Protocol—Color Codes
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Slave to Master
1024-Bit EEPROM iButton
Programming
1-Wire Communication Examples
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