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    Microchip MCP7940M-I/SN, Real Time Clock (RTC), 64B RAM Serial-I2C, 8-Pin SOIC

    RS Stock No.:
    912-6943
    Mfr. Part No.:
    MCP7940M-I/SN
    Manufacturer:
    Microchip
    Microchip
    View all Real Time Clocks
    600 In stock for delivery within 3 working days
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    Price Each (In a Tube of 100)

    HK$7.83

    unitsPer unitPer Tube*
    100 - 400HK$7.83HK$783.00
    500 +HK$7.047HK$704.70
    *price indicative
    RS Stock No.:
    912-6943
    Mfr. Part No.:
    MCP7940M-I/SN
    Manufacturer:
    Microchip
    COO (Country of Origin):
    TH

    Legislation and Compliance

    COO (Country of Origin):
    TH

    Product Details

    MCP7940M I²C Real-Time Clock/Calendars


    The Microchip MCP7940M is Real-Time Clock Calendar (RTCC) that supports I²C communications. The MCP7940M includes a digital trimming circuit for accuracy which can compensate for crystal tolerance and temperature.

    The MCP7940M features a multi-functional output that can be configured as an alarm output, to output a selectable frequency square wave or as a general purpose output.

    Features


    2-Wire Serial Interface, I²C™ Compatible: I²C clock rate up to 400 kHz
    On-Chip Digital Trimming/Calibration: ±1 ppm resolution, ±129 ppm range
    Tracks Hours, Minutes, Seconds, Day of Week, Day, Month and Year
    Leap Year Compensated to 2399
    12/24 Hour Modes
    Oscillator for 32.768 kHz Crystals: Optimised for 6-9 pF crystals
    Dual Programmable Alarms
    Versatile Output Pin
    Wide Operating Voltage Range: 1.8V to 5.5V
    Low Typical Timekeeping Current: 1.2μA at 3.3V


    Real Time Clock Peripherals - Microchip

    Specifications

    AttributeValue
    FunctionsCalendar, NV SRAM
    Date FormatDW:DM:M:Y
    Time FormatHH:MM:SS
    User RAM64B
    Bus TypeSerial-I2C
    Mounting TypeSurface Mount
    Package TypeSOIC
    Pin Count8
    Dimensions4.9 x 3.9 x 1.25mm
    Length4.9mm
    Width3.9mm
    Height1.25mm
    Maximum Operating Supply Voltage5.5 V
    Maximum Operating Temperature+85 °C
    Minimum Operating Temperature-40 °C
    Minimum Operating Supply Voltage1.8 V
    600 In stock for delivery within 3 working days
    Add to Basket
    units

    Added

    Price Each (In a Tube of 100)

    HK$7.83

    unitsPer unitPer Tube*
    100 - 400HK$7.83HK$783.00
    500 +HK$7.047HK$704.70
    *price indicative