M41T0集成電路（IC）的實時時鐘規(guī)格書PDF中文資料

M41T0屬于集成電路（IC）的實時時鐘。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的M41T0實時時鐘實時時鐘 (RTC) 為幾乎所有需要保持精確時間的電子設(shè)備提供時間和/或日期信息。時鐘類型有二進(jìn)制計數(shù)器、時鐘/日歷/監(jiān)控器、歷時計時器、幻時鐘芯片、便攜式系統(tǒng)控制器、溫度記錄器、時間事件記錄器和計時器時鐘外設(shè)。其包含 2 B 至 2 MB 不等的存儲器，接口選項有 I2C、并行、串行、SPI、1 線式、2 線式、3 線式和 4 線式。

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