The MCP79410 general purpose I2C™Compatible real-time clock/calendar (RTCC) is highly integrated with nonvolatile memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and digital trimming for accuracy. Using a low-cost 32.768 kHz crystal or other clock source, time is tracked in either a 12-hour or 24-hour format with an AM/PM indicator and timing to the second, minute, hour, day of the week, day, month and year. As an interrupt or wakeup signal, a multifunction open drain output can be programmed as an Alarm Out or as a Clock Out that supports 4 selectable frequencies. In addition, non-volatile memory is included along with a Unique ID in a locked section of EEPROM that can be unlocked and programmed by the End User.

• Case: MSOP-8
• Type (ICs): Time / calendar
• Time format: HH: MM: SS (12 / 24h)
• Date format: YY-MM-DD
• Interfaces: I²C, 2 wires, Serial
• Min. Supply voltage: 1.8 V
• Maximum supply voltage: 5.5 V
• Current - time measurement: 1.2 μA
• Current - time measurement reference: 3.3 V
• Memory model: SRAM
• Memory capacity: 64 bytes
• Battery power supply voltage: 1.3 V / 5.5 V (min / max)
• Operating temperature (min.): -40 ° C
• Operating temperature (max.): +85 ° C
• Surface mounting