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Analog Devices / Maxim Integrated DS3231M I²C实时时钟

低功率Maxim IC DS3231M是业界首个带内部MEMS谐振器的温度补偿式实时时钟。该Maxim IC成本低，极其精确。I²C RTC包含电池输入，设备主电源中断时保持精确计时。DS3231M在-40ºC-85ºC时可保持±5ppm（±0.432 秒/日）计时精度并有完整日历功能，包括秒、分、时、星期、日期、月、年和闰年补偿。DS3231M包括两个当日时间报警，还配有1Hz和32.768kHz输出。该Maxim IC RTC经过优化，可用于电表和工业应用，降低晶体出现机械故障的可能性。

特性

  • Timekeeping accuracy ±5ppm (±0.432 Second/Day) from -40°C to +85°C
  • Battery backup for continuous timekeeping
  • Low power consumption
  • Footprint and functionally compatible with DS3231
  • Two Time-of-Day alarms
  • 1Hz and 32.768kHz outputs
  • Reset output and pushbutton input with debounce
  • Fast (400kHz) I2C-compatible serial bus
  • 2.3V to 5.5V supply voltage
  • 16-Pin SO (300 mils) package
  • Underwriters Laboratories (UL) recognized

应用

  • Power meters
  • Industrial applications

Typical Application Circuit

应用电路图 - Analog Devices / Maxim Integrated DS3231M I²C实时时钟

Additional Resources

View Results ( 6 ) Page
物料编号 数据表 电源电压-最小 电源电压-最大
DS3231M+TRL DS3231M+TRL 数据表 2.3 V 5.5 V
DS3231MZ+TRL DS3231MZ+TRL 数据表 2.3 V 5.5 V
DS3231M+ DS3231M+ 数据表 2.3 V 5.5 V
DS3231MZ+ DS3231MZ+ 数据表 2.3 V 5.5 V
DS3231MPMB1# DS3231MPMB1# 数据表
DS3231MZEVKIT#
发布日期: 2011-03-31 | 更新日期: 2025-10-29