DS1213B

BUY DS1213B https://www.utsource.net/itm/p/12608895.html

Instructions

1. Powering the Device:

   • Connect the Vcc pin to a power supply within the specified operating voltage range (2.0V to 5.5V).
   • Ensure the ground (GND) is connected to the system ground.

2. Connecting the Serial Interface:

   • Connect the SDA and SCL pins to the corresponding lines of the I2C bus.
   • Use pull-up resistors on both SDA and SCL lines to Vcc, typically between 4.7kΩ and 10kΩ.

3. Writing to EEPROM:

   • Initiate a start condition followed by the device address and write command.
   • Send the memory address where data will be written.
   • Transmit the data byte(s) to be written.
   • Terminate with a stop condition.
   • Wait for the write cycle to complete (up to 5ms).

4. Reading from EEPROM:

   • Start with a write sequence to set the read pointer to the desired address.
   • Follow with a repeated start and read command.
   • Read the data byte(s) from the device.
   • Acknowledge or not acknowledge as needed, then send a stop condition.

5. Handling Power Loss:

   • Implement a capacitor close to the Vcc pin to maintain power during brief interruptions.
   • Avoid writing to the EEPROM during potential power loss conditions to prevent data corruption.

6. Operating Environment:

   • Operate within the specified temperature range to ensure reliable performance.
   • Shield the device from excessive electromagnetic interference (EMI) which can affect communication reliability.