DS12885S+T&R (MAXIM INTEGRATED PRODUCTS)

The DS12885S+T&R from Maxim Integrated Products is a real time clock (RTC) in 24 pin SOIC package. This RTC is designed to be direct replacements for the DS1285. The device provide a real time clock/calendar, one time of day alarm, three maskable interrupts with a common interrupt output, a programmable square wave and 114 bytes of battery backed static RAM. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The device also operate in either 24-hour or 12-hour format with an AM/PM indicator. A precision temperature-compensated circuit monitors the status of VCC. If a primary power failure is detected device automatically switches to a backup supply. A lithium coin-cell battery can be connected to VBAT input pin on IC to maintain time and date operation when primary power is absent. It is used in embedded systems, utility meters, security systems and network hubs, bridges and routers.