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FEATURES Real-Time Clock (RTC) Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation Valid Up to 2100 Available in a Surface-Mount Package with an Integrated Crystal (DS1339C) I2C Serial Interface Two Time-of-Day Alarms Programmable Square-Wave Output Oscillator Stop Flag Automatic Power-Fail Detect and Switch Circuitry Trickle-Charge Capability Underwriters Laboratory (UL) Recognized Pin Configurations appear at end of data sheet. ORDERING INFORMATION PART TEMP RANGE VOLTAGE (V) PIN-PACKAGE TOP MARK† DS1339C-2# -40°C to +85°C 2.0 16 SO (300 mils) DS1339C-2 DS1339C-3# -40°C to +85°C 3.0 16 SO (300 mils) DS1339C-3 DS1339C-33# -40°C to +85°C 3.3 16 SO (300 mils) DS1339C-33 DS1339U-2+ -40°C to +85°C 2.0 8 μSOP 1339 rr-2 DS1339U-3+ -40°C to +85°C 3.0 8 μSOP 1339 rr-3 DS1339U-33+ -40°C to +85°C 3.3 8 μSOP 1339 rr-33 + Denotes a lead-free/RoHS-compliant device. # Denotes a RoHS-compliant device that may include lead that is exempt under the RoHS requirements. The lead finish is JESD97 category e3, and is compatible with both lead-based and lead-free soldering processes. † A “+” anywhere on the top mark indicates a lead-free device. A “#” denotes a RoHS-compliant device. rr = second line, revision code DS1339 I2C Serial Real-Time Clock www.maxim-ic.com 元器件交易
