PCF7943AT/422

PCF7943AT/422

Category: Available (Qty:9999999)
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Description

BUY PCF7943AT/422 https://www.utsource.net/itm/p/12611624.html

Parameter Symbol Conditions Min Typ Max Unit
Supply Voltage VDD Operating 2.0 5.5 V
Standby Current ISB VDD = 3V, f = 32.768 kHz 1.0 μA
Operating Current IOP VDD = 3V, f = 32.768 kHz 2.5 μA
Output Frequency fOUT 32.768 32.768 kHz
Temperature Range Operating -40 +85 °C
Storage Temperature Range -55 +125 °C

Instructions for PCF7943AT/422

  1. Power Supply Connection:

    • Connect the VDD pin to the power supply within the operating voltage range (2.0V to 5.5V).
    • Ensure a stable power supply to avoid fluctuations that can affect performance.
  2. Crystal Oscillator Setup:

    • Connect an external crystal oscillator of 32.768 kHz between the X1 and X2 pins.
    • Proper load capacitors should be connected as specified in the datasheet to ensure accurate frequency operation.
  3. Output Configuration:

    • The output frequency is fixed at 32.768 kHz. Ensure this matches your system requirements.
    • Connect the output to the required circuitry or microcontroller input.
  4. Temperature Considerations:

    • Operate the device within the temperature range of -40°C to +85°C for optimal performance.
    • For storage, keep within the range of -55°C to +125°C.
  5. Standby Mode:

    • To minimize power consumption, use standby mode when not actively processing.
    • Standby current is typically around 1.0 μA, making it suitable for battery-operated devices.
  6. Handling Precautions:

    • Handle with care to prevent damage from electrostatic discharge (ESD).
    • Follow standard handling procedures for electronic components.

Note: Detailed application notes and specific timing diagrams can be found in the official datasheet provided by the manufacturer.

(For reference only)

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