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    首頁(yè)產(chǎn)品索引MCP795W12

    MCP795W12

    購(gòu)買收藏
    SPI GPP RTCC, 1Kb EE, 64B SRAM, WDT, Event Detect, EUI-64

     

    產(chǎn)品信息

    The MCP795W12 SPI RTCC is 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 unique ID in a locked section of EEPROM that is preprogrammed with a 48-bit MAC Address that can also be ordered blank for the end user to program. By adding a watchdog timer and two programmable event detect inputs, lower power and more system robustness can be achieved by off-loading MCU functions and allowing it to sleep for longer periods of time.

    Full Featured RTCC targets smart energy, communications and home appliance applications.

      Low Power Operation

      VCC Min = 1.8V

      Icc

      Low Backup Power

      VBAT Min = 1.3V

      Ibat

      Automatic Battery Switchover with Timestamp

      VCC to VBAT (VCC Lost)

      VBAT to VCC (VCC Restored)

      Dual configurable alarms with a 0.01 sec count on one alarm

      IRQ (VCC or VBAT)

      WDO (VCC)

      Clock Out frequencies: 32.768, 8.192 & 4.096 KHz and 1 Hz

      Digital Trimming Range from -255 to + 255 ppm in 1 ppm steps

      Adjusts up to 22 seconds/day

      Watchdog Timer - Dual Retriggers

      SPI Bus or EVHS digital input

      Dual Configurable Event Detects

      High speed with programmable pulse count (EVHS)

      Low speed with programmable debounce delay (EVLS)

      EEPROM has 8 Bytes/Page with Block Sector write protection

      Protect: None, 1/4, 1/2 or all of array

      Unique ID is factory programmed with MAC Address

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