M41T80

批量生产
Design Win

串行实时时钟(RTC),具有报警功能

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产品概述

描述

The M41T80 is a low power serial RTC with a built-in 32.768 kHz oscillator (external crystal controlled). Eight registers are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. An additional 12 registers provide status/control of alarm, 32 KHz output, and square wave functions. Addresses and data are transferred serially via a two line, bi-directional I2C interface. The built-in address register is incremented automatically after each WRITE or READ data byte.

Functions available to the user include a time-of-day clock/calendar, alarm interrupts, 32 KHz output, and programmable square wave output. The eight clock address locations contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of a second in 24-hour BCD format. Corrections for 28, 29 (leap year - valid until year 2100), 30 and 31 day months are made automatically.

The M41T80 is supplied in an 8-pin SOIC.

  • 所有功能

    • 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
    • Serial interface supports I2C bus (400 kHz)
    • 2.0 to 5.5 V clock operating voltage
    • 32 KHz square wave on power-up to drive a microcontroller in low-power mode
    • Programmable (1 Hz to 32 KHz) square wave
    • Programmable alarm and interrupt function
    • Low operating current of 200 μA
    • Operating temperature of –40 to 85 °C
    • ECOPACK®package available

电路原理图

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EDA符号、封装和3D模型

STMicroelectronics - M41T80

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质量与可靠性

产品型号 Marketing Status 等级规格 符合RoHS级别 材料声明**
M41T80M6F
批量生产
SO-8 工业 Ecopack3

M41T80M6F

Package:

SO-8

Material Declaration**:

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

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M41T80M6F
Available at distributors

经销商的可用性 M41T80M6F

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M41T80M6F 批量生产

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产品型号:

M41T80M6F

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(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商