restlessly

Data on the SDA pin may change only during SCL low time periods.Data changes during SCL high periods will indicate a start or stop condition as defined below.

START CONDITION: A high-to-low transition of SDA with SCL high is a start condition whichmust precede any other command.

STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition. After aread sequence, the stop command will place the EEPROM in a standby power mode.

ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the EEPROM in 8-bit words.

The EEPROM sends a zero to acknowledge that it has received eachword. This happens during the ninth clock cycle.

STANDBY MODE: The AT24C01B features a low-power standby mode which is enabled: (a)upon power-up and (b) after the receipt of the STOP bit and the completion of any internaloperations.

2-WIRE SOFTWARE RESET: After an interruption in protocol, power loss or system reset, any2-wire part can be protocol reset by following these steps: (a) Create a start bit condition, (b)Clock 9 cycles, (c) Create another start bit followed by a stop bit condition as shown below. Thedevice is ready for next communication after above steps have been completed.