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Embedded high-stability 32 KHz DTCXO Temperature-compensated serial real-time clock – ±5.0 ppm max from -40 to 85 °C – ±3.8 ppm max from 0 to 50 °C Supply voltage – Clock operating & timekeeping: 1.6 to 5.5 V – I2C interface operating: 1.8 to 5....