Details

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BUY PCF8563T SOP8 https://www.utsource.net/itm/p/11269514.html

Parameter	Symbol	Min	Typ	Max	Unit
Operating Voltage	Vcc	2.0	-	5.5	V
Standby Current	Icc	-	500	-	nA
Operating Current	Icc	-	450	-	μA
Output Frequency	fOUT	32.768	-	32.768	kHz
Time Accuracy	±	-	2	-	ppm
Temperature Range	Toper	-40	-	85	°C
Storage Temperature	Tstg	-40	-	125	°C
Clock Output Drive	IOL	-	10	-	mA
Clock Output High Level	VOH	-	Vcc-0.4	-	V
Clock Output Low Level	VOL	-	0.4	-	V

Instructions for Using PCF8563T SOP8

1. Power Supply:

   • Connect the Vcc pin to a power supply within the range of 2.0V to 5.5V.
   • Connect the GND pin to the ground.

2. Clock Input:

   • Connect a 32.768 kHz crystal between the X1 and X2 pins for accurate timekeeping.

3. I2C Communication:

   • Connect the SDA (Serial Data) and SCL (Serial Clock) pins to the corresponding I2C lines on your microcontroller.
   • Ensure that pull-up resistors are used on both SDA and SCL lines, typically around 4.7kΩ to Vcc.

4. Output Configuration:

   • The PCF8563T can generate a square wave output on the SQW/INT pin. Configure the output frequency through the control registers.

5. Register Access:

   • Use the I2C protocol to read and write to the internal registers of the PCF8563T.
   • The device address is 0x51 (1010001b).

6. Time Setting:

   • Set the time by writing to the appropriate registers (seconds, minutes, hours, day, date, month, year).
   • Ensure BCD (Binary-Coded Decimal) format is used for setting the time.

7. Alarm Function:

   • Configure the alarm by setting the values in the ALM_MIN, ALM_HR, ALM_DATE, and ALM_DOW registers.
   • Enable the alarm interrupt by setting the appropriate bits in the CONTROL_1 register.

8. Interrupt Handling:

   • Monitor the SQW/INT pin for interrupt signals.
   • Clear the interrupt flag by reading the STATUS register.

9. Power Management:

   • In standby mode, the current consumption is minimized. Ensure the Vcc is maintained to retain the time and settings.
   • Use the STOP bit in the CONTROL_1 register to stop the oscillator and further reduce power consumption.

10. Temperature Considerations:

    • Operate the device within the temperature range of -40°C to 85°C for optimal performance.
    • Store the device within the temperature range of -40°C to 125°C.

11. Handling Precautions:

    • Handle the PCF8563T with care to avoid static damage.
    • Ensure proper grounding and use ESD protection when handling the device.

By following these instructions, you can effectively integrate the PCF8563T into your project for accurate timekeeping and alarm functionality.

(For reference only)