MCP79410-I/MS Datasheet PDF - Microchip

●The MCP79410-I/MS is a general purpose I²C™ compatible Real-Time Clock/Calendar (RTCC) is highly integrated with non-volatile memory. This features a battery switchover circuit for backup power, a timestamp to log power failures and digital trimming for accuracy. Using a 32.768kHz crystal or other clock source, time is tracked in either a 12 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 multi-function 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 an unique ID in a locked section of EEPROM that can be unlocked and programmed by the end user.

● Leap year compensated to 2399

● On-chip digital trimming/calibration - 1PPM resolution, ±129PPM range

● Dual programmable alarms

● Versatile output pin - Clock output with selectable frequency

● Power-fail time-stamp - time logged on switchover to and from battery backup

● 2-wire serial interface

● 64-byte battery-backed SRAM

● 1kb EEPROM Memory

● 64-bit protected EEPROM area - robust write unlock sequence

● Low typical timekeeping current

● Automatic switchover to battery backup

● Programmable charge current

● Programmable safety charge timers

● Preconditioning of deeply depleted cells

● Automatic end-of-charge control

● Charge status output for direct LED drive

● Automatic power-down when input power removed

●ESD sensitive device, take proper precaution while handling the device.