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    M41ST87WSS6F

    M41ST87WSS6F

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    M41ST87WMX6TR

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    Free

    5.0 V, 3.3/3.0 V secure real-time clock , NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
    Learn More about M41ST87WMX6TR

    Quantity $ per Unit Savings
    1 - 9$9.220%
    10 - 24$8.3310%
    25 - 99$7.9514%
    100 - 249$6.9025%
    250 - 499$6.5929%
    500$6.0135%
    500 + Contact Sales
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    In stock
    $9.22
    or
    Parameter NameParameter Value
    Operating RangeIndustrial
    Supply Voltage Min Volt2.7
    Supply Voltage Max Volt3.6
    Operating Temp Min Celsius-40.0
    Operating Temp Max Celsius85.0
    ECCN USEAR99
    ECCN EUNEC
    Packing TypeTape And Reel
    ROHS Compliance GradeEcopack1
    GradeIndustrial
    Package NameSO28 WITH EMBEDDED CRYSTAL
    Key features
    • 5.0, 3.3, or 3.0 V operation
    • 400 kHz I2C bus
    • NVRAM supervisor to non-volatize external LPSRAM
    • 2.5 to 5.5 V oscillator operating voltage
    • Automatic switchover and deselect circuitry
    • Choice of power-fail deselect voltages
      • M41ST87Y: (not recommended for new design, contact ST sales office for availability) THS = 1: VPFD≈ 4.63 V; VCC= 4.75 to 5.5 V THS = 0: VPFD≈ 4.37 V; VCC= 4.5 to 5.5 V
      • M41ST87W: THS = 1: VPFD≈ 2.9 V; VCC= 3.0 to 3.6 V THS = 0: VPFD≈ 2.63 V; VCC= 2.7 to 3.6 V
    • Two independent power-fail comparators (1.25 V reference)
    • Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
    • 128 bytes of clearable, general purpose NVRAM
    • Programmable alarm and interrupt function (valid even during battery backup mode)
    • Programmable watchdog timer
    • Unique electronic serial number (8-byte)
    • 32 kHz frequency output available upon power-on
    • Microprocessor power-on reset output
    • Battery low flag
    • Ultra-low battery supply current of 500 nA (typ)
    • Security features
      • Tamper indication circuits with timestamp and RAM clear
      • LPSRAM clear function (TPCLR)
      • Packaging includes a 28-lead, embedded crystal SOIC and a 20-lead SSOP
      • Oscillator stop detection
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