Datasheet > M41T81_10

M41T81_10

更新时间： 2024-02-06 14:46:00

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		时钟
页数	文件大小	规格书
29页	457K
描述
Serial access real-time clock with alarm

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M41T81_10 数据手册

M41T81

Serial access real-time clock with alarm

Not recommended for new design

Features

■ For all new designs other than automotive, use

M41T81S (contact the ST sales office for

automotive grade)

■ Counters for tenths/hundredths of seconds,

seconds, minutes, hours, day, date, month,

year, and century

■ 32 KHz crystal oscillator integrating load

capacitance (12.5 pF) providing exceptional

oscillator stability and high crystal series

resistance operation

SO8 (M)

8-pin SOIC

■ Serial interface supports I C bus (400 kHz

protocol)

■ Ultra-low battery supply current of 0.6 µA

(typ at 3 V)

■ 2.0 to 5.5 V clock operating voltage

■ Automatic switch-over and deselect circuitry

(for 3 V application select M41T81S datasheet)

■ Power-down time stamp (HT bit) allowing

determination of time elapsed in battery

backup

■ Programmable alarm and interrupt function

(valid even during battery backup mode)

■ Accurate programmable watchdog timer (from

62.5 ms to 128 s)

■ Software clock calibration to compensate

crystal deviation due to temperature

■ Operating temperature of –40 to 85 °C

■ ECOPACK package available

June 2010

Doc ID 7529 Rev 10

1/29

This is information on a product still in production but not recommended for new designs.

www.st.com

12 3 4 5 6 7...29

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与M41T81_10相关器件

型号	品牌	获取价格	描述	数据表
M41T81M	STMICROELECTRONICS	获取价格	SERIAL ACCESS RTC WITH ALARMS
M41T81M6	STMICROELECTRONICS	获取价格	SERIAL ACCESS RTC WITH ALARMS
M41T81M6E	STMICROELECTRONICS	获取价格	Serial access Real-Time Clock with alarm
M41T81M6F	STMICROELECTRONICS	获取价格	Serial access Real-Time Clock with alarm
M41T81M6TR	STMICROELECTRONICS	获取价格	SERIAL ACCESS RTC WITH ALARMS
M41T81MH6	STMICROELECTRONICS	获取价格	1 TIMER(S), REAL TIME CLOCK, PDSO28, 0.330 INCH, PLASTIC, SOH-28
M41T81MQ6	STMICROELECTRONICS	获取价格	1 TIMER(S), REAL TIME CLOCK, PDSO16, PLASTIC, SOIC-16
M41T81MX	STMICROELECTRONICS	获取价格	SERIAL ACCESS RTC WITH ALARMS
M41T81MX6	STMICROELECTRONICS	获取价格	SERIAL ACCESS RTC WITH ALARMS
M41T81MX6F	STMICROELECTRONICS	获取价格	1 TIMER(S), REAL TIME CLOCK, PDSO28, 0.300 INCH, LEAD FREE, PLASTIC, SO-28