• 宽工作电压:0.9V-5.5V
• 低休眠电流:0.4uA(3.3V下的典型值)
• I2C通信频率最高支持400KHz@1.2V-5.5V
• 万年历日期2000年-2099年
• 可编程时钟输出32768Hz、16384Hz、8192Hz、
4096Hz、2048Hz、1024Hz、1Hz
• 内部集成振荡器电容,可配置7pF或者12.5pF
• 内部集成定时器
• 内部集成报警功能
• 内部集成分钟和半分钟报警功能
• 内部集成时钟微调功能
• 支持12小时和24小时切换
• 支持SOP8、TSSOP8、HVSON10等封装
• Provides year, month, day, weekday, hours, minutes,
and seconds based on a 32.768 kHz quartz crystal
• Clock operating voltage: 0.9 V to 5.5 V
• Low current: typical 0.22 A at VDD = 3.3 V
and Tamb = 25 ℃
• 400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)
• Programmable clock output for peripheral devices
(32.768 kHz, 16.384 kHz,8.192 kHz, 4.096 kHz,
2.048 kHz, 1.024 kHz, and 1 Hz)
• Selectable integrated oscillator load capacitors
for CL = 7 pF or CL = 12.5 pF
• Minute and half minute interrupt
• Oscillator stop detection function
• Internal Power-On Reset (POR)
• Programmable offset register for frequency adjustment