| Real-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 210096-byte, battery-backed NV RAM for data storageTwo time-of-day alarms, programmable on combination of seconds, minutes, hours, and day of the weekSerial interface supports Motorola SPI (serial peripheral interface) serial data ports or standard 3-wire interfaceBurst mode for reading/writing successive addresses in clock/RAMDual-power supply pins for primary and backup power suppliesOptional trickle charge output to backup supply2.0V to 5.5V operationOptional industrial temperature range: -40°C to +85°CAvailable in space-efficient, 20-pin TSSOP packageUnderwriters Laboratory (UL) recognized |