Microchip Technology

MCP795Wxx Real-Time Clock / Calendars

Microchip's expansion of feature rich, low cost, timekeeping solutions

Microchip Technology's MCP795Wxx Real-Time Clock/CalendarsMicrochip's real-time clocks are highly integrated with non-volatile memory and cost effective features for real life applications. This includes a battery switchover with timestamp to maintain timekeeping in order to log the time and duration of any power failure. When higher accuracy is necessary, digital trimming compensates for crystal frequencies that drift over temperature.

The MCP795Wxx series are accurate real-time clock devices that use an external 32.768 KHz crystal as a timing source. Most RTCCs use a crystal for timing with the understanding that all crystals drift in frequency over temperature.

Features
  • Three types of user memory:
    • SRAM: 64 bytes
    • EEPROM: 1 and 2 Kbits
    • Unique ID: 128 bits
  • Alarms: counts down to 0.01 seconds
  • Watchdog timer:
    • Dual retriggers using SPI bus or GPIO
    • From 15 msec to 64 sec
  • Digital trimming: adjustment range of approximately 22 seconds/day
  • Event detect inputs:
    • High speed - programmable count
    • Low speed - programmable debounce
  • Boot clock (boot devices only): 32 KHz clock output at powerup
  • Operating speed: 10 MHz @ 4.5 V

MCP795W1x Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
IC RTC CLK/CALENDAR SPI 14SOICMCP795W10-I/SLIC RTC CLK/CALENDAR SPI 14SOIC178 - Immediate$2.44View Details
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W11-I/STIC RTC CLK/CALENDAR SPI 14TSSOP79 - Immediate$2.63View Details
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W10-I/STIC RTC CLK/CALENDAR SPI 14TSSOP991 - Immediate$2.52View Details
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W12-I/STIC RTC CLK/CALENDAR SPI 14TSSOP7 - Immediate$2.63View Details
IC RTC CLK/CALENDAR SPI 14SOICMCP795W11-I/SLIC RTC CLK/CALENDAR SPI 14SOIC0 - Immediate$2.26View Details
IC RTC CLK/CALENDAR SPI 14SOICMCP795W12-I/SLIC RTC CLK/CALENDAR SPI 14SOIC217 - Immediate$2.58View Details

MCP795W2x Series

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W20-I/STIC RTC CLK/CALENDAR SPI 14TSSOP187 - Immediate$2.63View Details
IC RTC CLK/CALENDAR SPI 14SOICMCP795W21-I/SLIC RTC CLK/CALENDAR SPI 14SOIC98 - Immediate$2.70View Details
IC RTC CLK/CALENDAR SPI 14SOICMCP795W20-I/SLIC RTC CLK/CALENDAR SPI 14SOIC1059 - Immediate$2.58View Details
IC RTC CLK/CALENDAR SPI 14TSSOPMCP795W22-I/STIC RTC CLK/CALENDAR SPI 14TSSOP172 - Immediate$2.76View Details
IC RTC CLK/CALENDAR SPI 14SOICMCP795W22-I/SLIC RTC CLK/CALENDAR SPI 14SOIC64 - Immediate$2.70View Details
Published: 2013-01-14

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