DS1308U-33+ Functions, Maxim Integrated DS1308U-33+, Real Time Clock Serial-I2C, 8-Pin μSOP

Compatible with Crystal ESR Up to 100kΩ Allows a Crystal to be Optimized for Cost and SpaceLow-Power Operation Extends Battery Backup Run TimeLow Timekeeping Current of 250nA (typ)Automatic Power-Fail Detect and Switch CircuitryCompletely Manages All Timekeeping FunctionsReal-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2400External Clock Source for Synchronization Clock Reference (e.g., 32kHz, 50Hz/60Hz Powerline, GPS 1PPS)56-Byte, Battery-Backed, General-Purpose RAM with Unlimited WritesProgrammable Square-Wave Output SignalSimple Serial Port Interfaces with Most MicrocontrollersI2C Serial InterfaceIndustrial Temperature Range: -40°C to +85°C Supports Operation in a Wide Range of Applications ApplicationsConsumer Electronics (Set-Top Box, Digital Recording, Network Appliance)Handhelds (GPS, POS Terminal)Medical (Glucometer, Medicine Dispenser)Office Equipment (Fax/Printer, Copier)Other (Utility Meter, Vending Machine, Thermostat, Modem)Telecommunications (Router, Switcher, Server)