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DS1302 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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DS1302 Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 13 page ![]() DS1302 Trickle-Charge Timekeeping Chip 1 of 13 REV: 120208 FEATURES Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 31 x 8 Battery-Backed General-Purpose RAM Serial I/O for Minimum Pin Count 2.0V to 5.5V Full Operation Uses Less than 300nA at 2.0V Single-Byte or Multiple-Byte (Burst Mode) Data Transfer for Read or Write of Clock or RAM Data 8-Pin DIP or Optional 8-Pin SO for Surface Mount Simple 3-Wire Interface TTL-Compatible (VCC = 5V) Optional Industrial Temperature Range: -40°C to +85°C DS1202 Compatible Underwriters Laboratories (UL®) Recognized PIN CONFIGURATIONS ORDERING INFORMATION PART TEMP RANGE PIN-PACKAGE TOP MARK* DS1302+ 0°C to +70°C 8 PDIP (300 mils) DS1302 DS1302N+ -40°C to +85°C 8 PDIP (300 mils) DS1302 DS1302S+ 0°C to +70°C 8 SO (208 mils) DS1302S DS1302SN+ -40°C to +85°C 8 SO (208 mils) DS1302S DS1302Z+ 0°C to +70°C 8 SO (150 mils) DS1302Z DS1302ZN+ -40°C to +85°C 8 SO (150 mils) DS1302ZN +Denotes a lead-free/RoHS-compliant package. *An N anywhere on the top mark indicates an industrial temperature grade device. A + anywhere on the top mark indicates a lead-free device. UL is a registered trademark of Underwriters Laboratories, Inc. www.maxim-ic.com VCC1 SCLK I/O CE VCC2 X1 X2 GND 8 7 6 5 1 2 3 4 DIP (300mils) VCC2 X1 X2 GND VCC1 SCLK I/O CE 8 7 6 5 1 2 3 4 SO (208 mils/150 mils) TOP VIEW |