M41T0集成电路（IC）的实时时钟规格书PDF中文资料

M41T0属于集成电路（IC）的实时时钟。由意法半导体集团制造生产的M41T0实时时钟实时时钟 (RTC) 为几乎所有需要保持精确时间的电子设备提供时间和/或日期信息。时钟类型有二进制计数器、时钟/日历/监控器、历时计时器、幻时钟芯片、便携式系统控制器、温度记录器、时间事件记录器和计时器时钟外设。其包含 2 B 至 2 MB 不等的存储器，接口选项有 I2C、并行、串行、SPI、1 线式、2 线式、3 线式和 4 线式。

SUMMARY DESCRIPTION

The M41T0 TIMEKEEPER® RAM is a low power Serial TIMEKEEPER with a built-in 32.768kHz oscillator (external crystal controlled). Eight registers are used for the clock/calendar function and are configured in binary coded decimal (BCD) format.

Addresses and data are transferred serially via a two-line bi-directional bus. The built-in address register is incremented automatically after each WRITE or READ data byte.

The M41T0 is supplied in 8 lead Plastic Small Outline package.

FEATURES SUMMARY

■ 2.0 TO 5.5V CLOCK OPERATING VOLTAGE

■ COUNTERS FOR SECONDS, MINUTES, HOURS, DAY, DATE, MONTH, YEARS, and CENTURY

■ YEAR 2000 COMPLIANT

■ I2C BUS COMPATIBLE (400kHz)

■ LOW OPERATING CURRENT OF 130µA

■ OPERATING TEMPERATURE OF –40 TO 85°C

■ AUTOMATIC LEAP YEAR COMPENSATION

■ SPECIAL SOFTWARE PROGRAMMABLE OUTPUT

■ OSCILLATOR STOP DETECTION