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Datasheet Microchip MCP79512


The MCP79512 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices


  • Download » Datasheet PDF, 708 Kb, File published: Dec 13, 2016
    MCP7951X/MCP7952X Battery-Backed SPI RTCC Data Sheet
    Docket ↓
    Battery-Backed SPI Real-Time Clock/Calendar Part Number SRAM
    (Bytes) EEPROM
    (Kbits) Unique ID MCP79510 64 1 Blank MCP79520 64 2 Blank MCP79511 64 1 EUI-48в„ў MCP79521 64 2 EUI-48в„ў MCP79512 64 1 EUI-64в„ў MCP79522 64 2 EUI-64в„ў Timekeeping Features Real-Time Clock/Calendar (RTCC):
    -Hours, minutes, seconds, hundredth of
    seconds, day of week, date, month, year
    -Leap year compensated to 2399
    -12/24-hour modes Oscillator for 32.768 kHz Crystals:
    -Optimized for 6-9 pF crystals On-Chip Digital Trimming/Calibration:
    -В±1 ppm resolution
    -В±259 ppm range Dual Programmable Alarms Clock Output Function with Selectable Frequency Power-Fail Timestamp:
    -Time logged on switchover to and from Battery
    mode Low-Power Features Wide Voltage Range:
    -Operating voltage range of 1.8V to 3.6V
    -Backup voltage range of 1.3V to 3.6V Low Typical Timekeeping Current:
    -Operating from VCC: 1.2 ВµA at 3.0V
    -Operating from VBAT: 1.0 ВµA at 3.0V Automatic Switchover to Battery Backup 128-Bit Protected EEPROM Area:
    -Robust write unlock sequence
    -EUI-48в„ў MAC address (MCP795X1)
    -EUI-64в„ў MAC address (MCP795X2) Operating Ranges SPI Serial Interface:
    -SPI clock rate up to 5 MHz Temperature Range:
    -Industrial (I): -40В°C to +85В°C Packages 10-Lead MSOP and TDFN Package Types (not to scale)
    MSOP/TDFN ...



Lifecycle StatusProduction (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)Production (Appropriate for new designs but newer alternatives may exist)




32KHz Boot ClockNONONO
Alarms2 Alarms (0.01sec)2 Alarms (0.01sec)2 Alarms (0.01sec)
Digital_Trimming-255 to +255ppm (1 ppm steps)-255 to +255ppm (1 ppm steps)-255 to +255ppm (1 ppm steps)
EEPROM, Kbits111
Ibat Current, nA700700700
Operating Temperature Range, °C-40 to +85-40 to +85-40 to +85
Power-Fail TimestampVCC Fail and VCC RestoreVCC Fail and VCC RestoreVCC Fail and VCC Restore
Temperature Range-40 to +85-40 to +85-40 to +85
Unique ID, MAC_AddressEUI-64EUI-64EUI-64
User SRAM, Bytes646464
Vbat Range, V1.3 - 3.61.3 - 3.61.3 - 3.6
Vcc Range, V1.8 - 3.61.8 - 3.61.8 - 3.6
Watchdog TimerNONONO

Eco Plan


Other Options

MCP79510 MCP79511 MCP79520 MCP79521 MCP79522

Moldel Line

Series: MCP79512 (3)

Manufacturer's Classification

  • Clock and Timing > Real-Time Clock > RTCC SPI

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