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


De afbeelding is alleen ter illustratie. Zie de productbeschrijving.

Artikelnr. fabrikant:
Technische datasheet:
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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
  • <1µA at 3V VCC Standby Current
  • <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


Clock & Timing, Automotive


12Hr / 24Hr
Alarm RTC
MSL 1 - Unlimited
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