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M41T62 数据表(PDF) 1 Page - STMicroelectronics |
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M41T62 数据表(HTML) 1 Page - STMicroelectronics |
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1 / 42 page  3.2 mm 1.5 mm 3mm 3mm Embedded crystal LCC8 1.5 x 3.2 mm No external crystal required QFN16 3 x 3 mm Features • Serial real-time clock (RTC) with alarm functions – 400 kHz I²C serial interface – Memory mapped registers for seconds, minutes, hours, day, date, month, year, and century – Tenths/hundredths of second register • 350 nA timekeeping current at 3 V • Time keeping down to 1.0 V • 1.3 V to 4.4 V I²C bus operating voltage – 4.4 V max. VCC suitable for lithium-ion battery operation • Low operating current of 35 µA (at 400 kHz I²C speed) • 32 kHz square wave output is on at power-up. Suitable for driving a microcontroller in low-power mode. Can be disabled. (M41T62/64) • Programmable 1 Hz to 32 kHz square wave output (M41T62/64) • Programmable alarm with interrupt function (M41T62/65) • 32 kHz crystal oscillator integrates crystal load capacitors, works with high series resistance crystals • Oscillator stop detection monitors clock operation • Accurate programmable watchdog – 62.5 ms to 31 minutes timeout • Software clock calibration. Timekeeping can be adjusted within ± 2 parts per million (± 5 seconds per month) • Automatic leap year compensation • – 40 to + 85 °C operation • Two package options – Very small 3 x 3 mm, lead-free and halogen-free (ECOPACK2) 16-lead QFN – Ultra small 1.5 x 3.2 mm, lead-free and halogen-free (ECOPACK2) 8-pin ceramic leadless chip carrier with embedded 32 kHz crystal - no external oscillator components required (M41T62) Maturity status link M41T62 M41T64 M41T65 Low-power serial real-time clocks (RTCs) with alarm M41T62, M41T64, M41T65 Datasheet DS3840 - Rev 24 - September 2019 For further information contact your local STMicroelectronics sales office. www.st.com |
类似零件编号 - M41T62 |
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类似说明 - M41T62 |
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