DS1374 Datasheet | Maxim Integrated

Description Features - 32-Bit 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°C to +85°C Operating Temperature Range - 10-Pin µSOP, 16-Pin SO - Available in a Surface-Mount Package with an Integrated Crystal (DS1374C) - Underwriters Laboratory (UL) Recognized Applications Portable Instruments Point-of-Sale Equipment Medical Equipment Telemunications I 2 C is a trademark of Philips Corp. Purchase of I 2 C ponents of Maxim Integrated Products, Inc., or one of its sublicensed Associated panies, conveys a license under the Philips I2C Patent Rights to use these ponents in an I 2 C system, provided that the system conforms to the I 2 C Standard Specification as defined by Philips. Pin Configurations appear at the end of the data sheet. PART DS1374C-18 DS1374C-18+ DS1374C-3 DS1374C-3+ DS1374C-33 DS1374C-33+ DS1374C-33/T&R w w .D w t a S a e h VCC CPU t e RPU RPU U 4 X1 SCL SDA INT RST .c m o Typical Operating Circuit CRYSTAL RPU = tr/CB X2 VCC SQW VBACKUP GND PRIMARY BATTERY, RECHARGEABLE BATTERY, OR SUPER CAPACITOR INT RST N.O. PUSHBUTTON RESET Ordering Information VOLTAGE (V) 1.8 1.8 3.0 3.0 3.3 3.3 3.3 PIN-PACKAGE 16 SO (300 mils) 16 SO (300 mils) 16 SO (300 mils) 16 SO (300 mils) 16 SO (300 mils) 16 SO (300 mils) 16 SO (300 mils)/Tape and Reel TOP MARK- DS1374C-18 DS1374C-18 DS1374C-3 DS1374C-3 TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C DS1374C-33...