* 32Bit Binary Counter * Second Binary Counter Provides Time-of-Day Alarm, Watchdog Timer, or NV RAM * Separate Square-Wave and Interrupt Output Pins * I²C Serial Interface * Automatic Power-Fail Detect and Switch Circuitry * Single-Pin Pushbutton Reset Input/Open-Drain Reset Output * Low-Voltage Operation * Trickle-Charge Capability * -40℃ to +85℃ Operating Temperature Range * 10Pin µSOP, 16Pin SO * Available in a Surface-Mount Package with anIntegrated Crystal (DS1374C)