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Real Time Clock Phantom Clock Parallel 32KBYTE 28 Pin Plastic DIP

View DS1216C: Smartwatch Real Time Clock

DS1216C: Smartwatch Real Time Clock

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Dallas Semiconductor
Jameco Part no. 133410
Manufacturer no. DS1216C
Catalog 161 , page 7
Pricing & Availability


# of Unit Price
1+ $25.95
10+ $22.95
100+ $17.95
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SmartWatch Real Time Clock


  • Keeps track of hundredths of seconds, seconds, minutes, hours, days, date of the month, months, and years
  • Converts standard 2k x 8 up to 512k x 8 CMOS static RAMs into nonvolatile memory
  • Embedded lithium energy cell maintains watch information and retains RAM data
  • Watch function is transparent to RAM operation
  • Month and year determine the number of days in each month; leap year compensations valid up to 2100
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
  • Proven gas-tight socket contacts
  • Full ±10% operating range
  • Accuracy is better than ±1 minute/month @ 25°C


  • Operating temperature: 0°C to 70°C
  • Dimensions: 36.07mm (L) x 18.29mm (W) x 11.94mm (H) (max)
  • Minimum operating supply voltage: 4.5V
  • Typical operating supply voltage: 5V
  • Maximum operating supply voltage: 5.5V
  • User RAM: 32768 byte
  • Mounting: through hole
  • Pin count: 28-Pin

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  • Specification Value
    Minimum Operating Temperature0°C
    Maximum Operating Temperature70°C
    MountingThrough Hole
    Supplier_PackagePDIP W
    Product Width18.29mm(Max)
    Product Height11.94mm(Max)
    Product Length36.07mm(Max)
    FunctionClock/Calendar/NV SRAM Control
    Specification Value
    Product TypeReal Time Clock
    Bus TypePhantom Clock|Parallel
    Date FormatDW:DM:M:Y
    Time FormatHH:MM:SS:hh
    User RAM32768Byte
    Minimum Operating Supply Voltage4.5V
    Typical Operating Supply Voltage5V
    Maximum Operating Supply Voltage5.5V

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