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DS1339C-33 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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DS1339C-33 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 20 page DS1339 I 2C Serial Real-Time Clock 2 of 20 ABSOLUTE MAXIMUM RATINGS Voltage Range on Any Pin Relative to Ground………………………………………………………………-0.3V to +6.0V Operating Temperature Range (Noncondensing)………………………………………………………….-40°C to +85°C Storage Temperature Range………………………………………………………………………………..-55°C to +125°C Lead Temperature (soldering, 10s)...…………………………………………………………………………………+260 °C Soldering Temperature (reflow).……………………………………………………………………………………….+260 °C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability. PACKAGE THERMAL CHARACTERISTICS (Note 1) µSOP Junction-to-Ambient Thermal Resistance ( θ JA).…………………...……………………………………….206.3°C/W Junction-to-Case Thermal Resistance ( θ JC)……………………………………………………………………42°C/W SO Junction-to-Ambient Thermal Resistance ( θ JA).……………………………………………………………….73°C/W Junction-to-Case Thermal Resistance ( θ JC)……………………………………………………………………23°C/W Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial. RECOMMENDED DC OPERATING CONDITIONS (TA = -40°C to +85°C) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage VCC DS1339-2 1.8 2.0 5.5 V DS1339-3 2.7 3.0 5.5 DS1339-33 2.97 3.3 5.5 Backup Supply Voltage VBACKUP 1.3 3.0 3.7 V Logic 1 VIH 0.7 x VCC VCC + 0.3 V Logic 0 VIL -0.3 +0.3 x VCC V Power-Fail Voltage VPF DS1339-2 1.58 1.70 1.80 V DS1339-3 2.45 2.59 2.70 DS1339-33 2.70 2.85 2.97 |
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