Low Power RTC With Battery Backed SRAM And 50/60 Cycle AC Input And Xtal Back-up

The ISL12032 device is a low power Real Time Clock with 50/60 AC input for Timing synchronization. It also has an Oscillator utilizing an external crystal for Timing back-up, Clock calendar Registers intelligent battery back-up switching, battery voltage monitor, brownout indicator, integrated trickle charger for super capacitor, single periodic or polled alarms, POR supervisory function, and up to 4 Event Detect with time stamp. There are 128 bytes of battery-backed user SRAM
The Oscillator uses a 50/60 cycle sine wave input, backed by an external, low-cost, 32.768kHz crystal. The Real Time Clock tracks time with separate Registers for hours, minutes, and seconds. The calendar Registers contain the date, month, year, and day of the week. The calendar is accurate through year 2100, with Automatic leap year correction and auto daylight savings correction.
By Intersil Corporation