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M41T83RMY6F Scheda tecnica(PDF) 1 Page - STMicroelectronics |
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M41T83RMY6F Scheda tecnica(HTML) 1 Page - STMicroelectronics |
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1 / 64 page  This is information on a product in full production. April 2024 DocID012578 Rev 19 1/64 64 M41T82, M41T83 Serial I2C bus real-time clock (RTC) with battery switchover Datasheet - production data Features • Ultra-low battery supply current of 365 nA • Factory-calibrated accuracy of ±5 ppm typical after 2 reflows (SOX18) – Much better accuracies achievable using built-in programmable analog and digital calibration circuits • 2.0 V to 5.5 V clock operating voltage • Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century • Automatic switchover and reset output circuitry (fixed reference) – M41T83S: VCC = 3.00 V to 5.50 V – M41T83R: VCC = 2.70 V to 5.50 V – M41T83Z: VCC = 2.38 V to 5.50 V • Serial interface supports I2C bus (400 kHz protocol) • Programmable alarm with interrupt function (valid even during battery backup mode) • Optional 2nd programmable alarm available • Square wave output defaults to 32 KHz on power-up (M41T83 only) • RESET (RST) output • Watchdog timer • Programmable 8-bit counter/timer • 7 bytes of battery-backed user SRAM • Battery low flag • Low operating current of 80 µA • Oscillator stop detection • Battery or SuperCap™ backup • Operating temperature of –40 °C to 85 °C • Package options – a 16-lead QFN (M41T83) – an 8-lead SOIC (M41T82) or – an 18-lead embedded crystal SOIC (M41T83) • RoHS compliance: lead-free components are compliant with the RoHS directive QFN16 (4 mm x 4 mm) SO8 (4.90 mm x 3.90 mm) 1 18 SOX18, embedded crystal (11.61 mm x 7.62 mm) www.st.com |
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