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                                                                                                    1. Home
                                                                                                    2. Semiconductors - ICs
                                                                                                    3. Clock,Timing & Frequency Management
                                                                                                    4. Real Time Clocks
                                                                                                    Print Page

                                                                                                    MCP79510-I/MS

                                                                                                    Alarm RTC IC, Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr, SPI, 1.8 V to 3.6 V, MSOP-10

                                                                                                    MICROCHIP
                                                                                                    Image is for illustrative purposes only. Please refer to product description.
                                                                                                    MICROCHIP MCP79510-I/MS
                                                                                                    ManufacturerMICROCHIP
                                                                                                    Manufacturer Part NoMCP79510-I/MS
                                                                                                    Order Code2361124
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    See all Technical Docs
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                                                                                                    Product Information

                                                                                                    MICROCHIP
                                                                                                    ManufacturerMICROCHIP
                                                                                                    Manufacturer Part NoMCP79510-I/MS
                                                                                                    Order Code2361124
                                                                                                    Technical Datasheet

                                                                                                    Data Sheet

                                                                                                    Date FormatYYYY:MM:WK:DD:Hr:Min:Secs
                                                                                                    Clock Format12Hr / 24Hr
                                                                                                    Clock IC TypeAlarm RTC
                                                                                                    Supply Voltage Min1.8V
                                                                                                    Supply Voltage Max3.6V
                                                                                                    Clock IC Case StyleMSOP
                                                                                                    No. of Pins10Pins
                                                                                                    IC Interface TypeSPI
                                                                                                    Operating Temperature Min-40°C
                                                                                                    Operating Temperature Max85°C
                                                                                                    Product Range-
                                                                                                    Automotive Qualification StandardAEC-Q100
                                                                                                    MSLMSL 1 - Unlimited
                                                                                                    SVHCNo SVHC (25-Jun-2025)

                                                                                                    Product Overview

                                                                                                    The MCP79510-I/MS is a SPI Real-time Clock and Calendar (RTCC) IC, highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of memory, which includes SRAM, EEPROM and a blank unique ID in a locked section of EEPROM. The ID is blank in this device, but can also be ordered with a 48 or 64-bit MAC address. Along with a 32,768kHz crystal, this RTCC tracks time using several internal registers and then communicates the data over a 5MHz SPI bus that is fast enough to support a programmable millisecond alarm. As part of the power sense circuit, a time saver function is implemented to store the time when main power is lost and again, when power is restored to log the duration of a power failure.

                                                                                                    • Hours, Minutes, Seconds, Hundredth of Seconds, Day of Week, Month, Year Real-time Clock/Calendar
                                                                                                    • Crystal Oscillator Requires External 32.768kHz Tuning Fork Crystal and Load Capacitors
                                                                                                    • 1Hz, 4.096kHz, 8.192kHz, 32.768kHz Clock Out Function
                                                                                                    • 2 Programmable Alarms
                                                                                                    • Programmable Open Drain Output, Alarm or Interrupt
                                                                                                    • ±255PPM Range in 1 PPM Steps On-chip Digital Trimming/Calibration
                                                                                                    • Logs Time When VCC Fails and VCC is Restored Power-fail Time-stamp at Battery Switchover
                                                                                                    • Low-power Consumption
                                                                                                    • 1.3 to 3.6V VBAT
                                                                                                    • <lt/>1μA at 3V VCC Standby Current
                                                                                                    • <lt/>700nA at 1.8V VBAT Timekeeping Current
                                                                                                    • Backup Power for Timekeeping and SRAM Retention Automatic Battery Switchover from VCC to VBAT
                                                                                                    • 64-byte Battery-backed SRAM
                                                                                                    • 2kb and 1kb EEPROM Memory
                                                                                                    • Software Block Write-protect (1/4, 1/2 or Entire Array)
                                                                                                    • Write Page Mode (up to 8 Bytes)
                                                                                                    • 1M Erase/Write Cycles Endurance
                                                                                                    • SPI Clock Speed up to 5MHz

                                                                                                    Applications

                                                                                                    Clock & Timing, Automotive

                                                                                                    Technical Specifications

                                                                                                    Date Format

                                                                                                    YYYY:MM:WK:DD:Hr:Min:Secs

                                                                                                    Clock IC Type

                                                                                                    Alarm RTC

                                                                                                    Supply Voltage Max

                                                                                                    3.6V

                                                                                                    No. of Pins

                                                                                                    10Pins

                                                                                                    Operating Temperature Min

                                                                                                    -40°C

                                                                                                    Product Range

                                                                                                    -

                                                                                                    MSL

                                                                                                    MSL 1 - Unlimited

                                                                                                    Clock Format

                                                                                                    12Hr / 24Hr

                                                                                                    Supply Voltage Min

                                                                                                    1.8V

                                                                                                    Clock IC Case Style

                                                                                                    MSOP

                                                                                                    IC Interface Type

                                                                                                    SPI

                                                                                                    Operating Temperature Max

                                                                                                    85°C

                                                                                                    Automotive Qualification Standard

                                                                                                    AEC-Q100

                                                                                                    SVHC

                                                                                                    No SVHC (25-Jun-2025)

                                                                                                    Technical Docs (3)

                                                                                                    Technical Data Sheet EN

                                                                                                    Product Change Notice EN

                                                                                                    CAD CadSoft_EAGLE EN

                                                                                                    Legislation and Environmental

                                                                                                    Country of Origin:
                                                                                                    Country in which last significant manufacturing process was carried outCountry of Origin:
                                                                                                    United States
                                                                                                    Country in which last significant manufacturing process was carried out
                                                                                                    Tariff No:85423990
                                                                                                    US ECCN:EAR99
                                                                                                    EU ECCN:NLR
                                                                                                    RoHS Compliant:Yes

                                                                                                    RoHS

                                                                                                    RoHS Phthalates Compliant:Yes

                                                                                                    RoHS

                                                                                                    SVHC:No SVHC (25-Jun-2025)
                                                                                                    Download Product Compliance Certificate

                                                                                                    Product Compliance Certificate

                                                                                                    Weight (kg):.000227
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