Microchip RTC IC SOIC I²C/2-Wire Serial

RTCC with features that target low power and smart energy applications. Automatic battery switchover with timestamp. Dual alarms with single IRQ output that operates on VCC or VBAT. Clock out frequencies of 32.768, 8.192 & 4.096 KHz and 1 Hz. Digital trimming range from -127 to +127ppm in 1ppm steps. EEPROM has 8 bytes/page with block sector write protection.