Details

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BUY PCF8563T/F4 https://www.utsource.net/itm/p/9141078.html

Parameter	Description	Symbol	Min	Typ	Max	Unit
Operating Voltage	Supply voltage range	VDD	2.0	-	5.5	V
Operating Temperature	Industrial temperature range	Toper	-40	-	+85	°C
Standby Current	Supply current in standby mode	ISB	-	350	700	nA
Operating Current	Supply current during operation	IOP	-	260	400	μA
Clock Accuracy	Monthly accuracy at 25°C	Δf/f	-	±2.0	-	ppm
Output Frequency	Square wave output frequency options	fOUT	-	-	-	Hz
Output Duty Cycle	Square wave output duty cycle	DUTY	-	50	-	%

Instructions for PCF8563T/F4

1. Power Supply Connection:

   • Connect VDD to the positive supply voltage (2.0V to 5.5V).
   • Connect VSS to ground.

2. Clock Input Configuration:

   • Connect a 32.768 kHz crystal between X1 and X2 pins for accurate timekeeping.
   • Ensure proper load capacitance is provided as specified by the crystal datasheet.

3. I2C Bus Interface:

   • The device communicates via the I2C bus using SDA and SCL lines.
   • Ensure pull-up resistors are connected to the SDA and SCL lines to VDD.

4. Register Configuration:

   • Use the control registers to set up alarms, square wave outputs, and other functionalities.
   • Refer to the datasheet for specific register addresses and bit configurations.

5. Time Setting:

   • Set the initial time by writing to the appropriate timekeeping registers.
   • Time can be read from these registers as needed.

6. Alarm Setup:

   • Configure alarm settings through the ALMx_H and ALMx_L registers (where x is the alarm number).
   • Enable the corresponding interrupt if an interrupt signal is required upon alarm match.

7. Square Wave Output:

   • Select the desired output frequency (1Hz, 2kHz, 4kHz, or 8kHz) using the SQWE and RS bits.
   • Enable the square wave output function to use the SQW/OUT pin.

8. Power Management:

   • Utilize the power management features to reduce power consumption when not actively using the RTC functions.

9. Handling and Storage:

   • Store in a dry environment to prevent moisture damage.
   • Handle with care to avoid static discharge which can damage the sensitive electronic components.

(For reference only)