Details

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BUY PCF8583T/5,518 https://www.utsource.net/itm/p/12426188.html

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (Vcc)	Operating voltage range	2.0	-	6.0	V
Standby Current	Current consumption in standby mode	-	1.0	-	μA
Operating Current	Current consumption during operation	-	200	-	μA
Clock Frequency	Internal oscillator frequency	32.768	-	32.768	kHz
Temperature Range	Operating temperature range	-40	-	85	°C
Output Frequency	RTC output frequency	1	4.096	32.768	Hz
Address Range	I2C address range	0x50	-	0x57	-

Instructions for Using the PCF8583T/5,518

1. Power Supply:

   • Connect the Vcc pin to a power supply within the range of 2.0V to 6.0V.
   • Connect the GND pin to ground.

2. Oscillator Configuration:

   • Use a 32.768 kHz crystal connected to the X1 and X2 pins for accurate timekeeping.
   • Ensure the crystal has a load capacitance suitable for the oscillator circuit.

3. I2C Communication:

   • The PCF8583T/5,518 uses I2C communication. Connect the SDA (data) and SCL (clock) pins to the corresponding lines on your microcontroller.
   • Set the device address using the A0, A1, and A2 pins. The default address is 0x50, but it can be changed by pulling these pins high or low.

4. RTC Initialization:

   • Write the initial time and date values to the appropriate registers.
   • The time and date registers are located at addresses 0x00 to 0x06.

5. Reading Time and Date:

   • Read the current time and date from the same registers (0x00 to 0x06).
   • The data is stored in BCD (Binary-Coded Decimal) format.

6. Setting Output Frequency:

   • Configure the output frequency by writing to the control register (address 0x07).
   • Valid frequencies are 1 Hz, 4.096 Hz, and 32.768 Hz.

7. Standby Mode:

   • To enter standby mode, set the appropriate bit in the control register.
   • This reduces power consumption to approximately 1.0 μA.

8. Interrupts:

   • Enable interrupts by configuring the interrupt control register (address 0x08).
   • The INT pin can be used to generate an interrupt signal based on various events (e.g., alarm).

9. Alarm Function:

   • Set up an alarm by writing the desired time to the alarm registers (addresses 0x09 to 0x0B).
   • Enable the alarm by setting the appropriate bits in the control register.

10. Temperature Considerations:

    • Ensure the device operates within the temperature range of -40°C to 85°C for reliable performance.
    • Extreme temperatures may affect the accuracy of the internal oscillator.

11. Handling and Storage:

    • Handle the device with care to avoid static damage.
    • Store in a dry, cool place when not in use.

For detailed register maps and specific commands, refer to the datasheet provided by the manufacturer.

(For reference only)