Details

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BUY DS1210S+ https://www.utsource.net/itm/p/5654385.html
IC CONTROLLER CHIP NV 16-SOIC

Parameter	Description
Device Name	DS1210S+
Type	Real-Time Clock (RTC) with EEPROM
Operating Voltage	2.5V to 5.5V
I2C Interface	Yes
Clock Accuracy	±2 minutes per year at 25°C
Temperature Range	-40°C to +85°C
EEPROM Size	512 bits (64 bytes)
Backup Supply	Lithium battery or supercapacitor
Package Type	SOIC-8

Instructions for Use:

1. Power Supply Connection:

   • Connect the main power supply (VCC) to a voltage between 2.5V and 5.5V.
   • Ensure a backup power source (VBAT) is connected for continuous operation during main power loss.

2. I2C Communication Setup:

   • Connect SDA (Data Line) and SCL (Clock Line) to your microcontroller’s I2C interface.
   • Pull-up resistors are required on both SDA and SCL lines, typically 4.7kΩ.

3. Initialization:

   • Initialize the DS1210S+ by sending the appropriate I2C commands to set the time and date.
   • Refer to the datasheet for specific command sequences.

4. Reading Time and Date:

   • Use I2C read commands to retrieve the current time and date from the RTC registers.

5. Writing to EEPROM:

   • Data can be written to the internal EEPROM using standard I2C write operations.
   • Ensure proper timing and acknowledge checks during writes.

6. Reading from EEPROM:

   • Read operations from EEPROM are similar to standard I2C read procedures.

7. Battery Management:

   • Monitor the backup supply voltage periodically to ensure it remains within operational limits.
   • Replace or recharge the backup supply as necessary.

8. Handling and Storage:

   • Store in a dry environment to prevent moisture damage.
   • Handle with care to avoid static damage; use ESD protection when handling the component.

For detailed specifications and additional instructions, refer to the official DS1210S+ datasheet provided by Maxim Integrated.

(For reference only)