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DS1231 Datasheet(PDF) 7 Page - Dallas Semiconductor |
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DS1231 Datasheet(HTML) 7 Page - Dallas Semiconductor |
7 / 9 page DS1231/S 022698 7/9 ABSOLUTE MAXIMUM RATINGS* Voltage on VCC Pin Relative to Ground -0.5V to +7.0V Voltage on I/O Relative to Ground -0.5V to VCC + 0.5V Operating Temperature 0 °C to 70°C Operating Temperature (Industrial Version) –40 °C to +85°C Storage Temperature -55 °C to +125°C Soldering Temperature 260 °C for 10 seconds * This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. RECOMMENDED DC OPERATING CONDITIONS (0 °C to 70°C) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Supply Voltage VCC 4.5 5.0 5.5 V 1 Input Pin 1 VIN VCC V 1 DC ELECTRICAL CHARACTERISTICS (0 °C to 70°C; VCC = 4.5 to 5.5V) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Low Level @ RST VOL 0.4 V 1 Output Voltage @ –500 µA VOH VCC–0.5V VCC–0.1V V 1, 6 Input Leakage IIL -10 +10 µA 2 Output Current @2.4V IOH 1.0 2.0 mA 5 Output Current @0.4V IOL 2.0 3.0 mA Operating Current ICC 0.5 2.0 mA 3 Input Pin 1 (Mode=GND) IC 15 25 50 µA Input Pin 1 (Mode=VCC) IC 0.1 µA IN Trip Piont (Mode=GND) VTP See Figure 3 1 IN Trip Point (Mode=VCC) VTP 1 VCC Trip Point (TOL=GND) VCCTP 4.50 4.62 4.74 V 1 VCC Trip Point (TOL=VCC) VCCTP 4.25 4.37 4.49 V 1 CAPACITANCE (TA = 25°C) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Input Capacitance CIN 5 pF Output Capacitance COUT 7 pF |
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