Details

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BUY M48T59Y-70PC1 https://www.utsource.net/itm/p/12494019.html

Parameter	Description	Value
Part Number	Component Identifier	M48T59Y-70PC1
Function	Real-Time Clock (RTC) with Integrated EEPROM	-
Package Type	Package Style	24-Pin SOIC
Operating Voltage (Vcc)	Supply Voltage Range for Operation	2.0V to 5.5V
Standby Current	Current Consumption in Standby Mode	300nA (Typical)
Active Current	Current Consumption in Active Mode	200μA (Typical)
Clock Accuracy	Precision of Time Keeping at 25°C	±2ppm (Typical)
Temperature Range	Operating Temperature Range	-40°C to +85°C
Memory Size	EEPROM Memory Capacity	512 x 8 Bits (512 Bytes)
Data Retention	Duration Data is Retained in EEPROM without Power	10 Years
Write Cycle Endurance	Number of Write Cycles the EEPROM Can Withstand	1,000,000 Cycles
Write Time	Time Required to Write a Byte to EEPROM	5ms (Maximum)
Clock Output Frequency	Frequency of the Clock Output Signal	32.768kHz
Communication Interface	Protocol Used for Data Transfer	I2C (Two-Wire Serial Interface)
Supply Pin Configuration	Pins for Vcc and GND	Vcc: Pin 24, GND: Pin 12
Clock Input	External Crystal or Clock Input	32.768kHz Crystal (X1, X2)
I2C Address	Default I2C Address for Communication	0x68 (Hex)
Pin Count	Number of Pins on the Package	24

Instructions for Use

1. Power Supply Connection:

   • Connect Vcc (Pin 24) to the positive supply voltage (2.0V to 5.5V).
   • Connect GND (Pin 12) to the ground.

2. External Crystal Connection:

   • Connect a 32.768kHz crystal between X1 (Pin 1) and X2 (Pin 2) for accurate timekeeping.

3. I2C Communication:

   • Connect SDA (Serial Data Line) to the appropriate pin on your microcontroller.
   • Connect SCL (Serial Clock Line) to the appropriate pin on your microcontroller.
   • Ensure pull-up resistors are used on both SDA and SCL lines to Vcc.

4. Initialization:

   • After powering up, initialize the RTC by writing the current date and time to the appropriate registers.
   • Use the I2C interface to read and write data from/to the RTC and EEPROM.

5. Reading Time and Date:

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

6. Writing to EEPROM:

   • Use the I2C commands to write data to the EEPROM. Ensure to respect the write time (5ms maximum).

7. Reading from EEPROM:

   • Use the I2C commands to read data from the EEPROM.

8. Power Management:

   • In standby mode, the device consumes minimal power (300nA typical). Ensure to manage power states effectively to extend battery life.

9. Handling Precautions:

   • Handle the device with care to avoid static damage.
   • Ensure proper grounding and decoupling capacitors are used to maintain stability and reduce noise.

10. Storage:

    • Store the device in a dry, cool place to prevent moisture damage and ensure long-term reliability.

(For reference only)