• VCC Min = 1.8V
• Icc < 1 µA,Typical Standby Current
• VBAT Min = 1.3V
• Ibat < 700nA,Typical Timekeeping & SRAM Retention Current
• VCC to VBAT (VCC Lost)
• VBAT to VCC (VCC Restored)
• IRQ (VCC or VBAT)
• WDO (VCC)
• Clock Out frequencies: 32.768, 8.192 & 4.096 KHz and 1 Hz
• Adjusts up to 22 seconds/day
• SPI Bus or EVHS digital input
• High speed with programmable pulse count (EVHS)
• Low speed with programmable debounce delay (EVLS)
• Protect: None, 1/4, 1/2 or all of array
• Unique ID is factory programmed with MAC Address

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.