M41T01

批量生产
Design Win

串行实时时钟(RTC),内置电池切换电路

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产品概述

描述

The M41T01 is a low-power serial real-time clock (RTC). The built-in 32.768 kHz oscillator circuit works with an external crystal and does not need any load capacitors.

The M41T01 clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. Eight bytes of the RAM 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 bidirectional bus. The built-in address register is incremented automatically after each WRITE or READ data byte. The energy needed to sustain the RAM and clock operations can be supplied from a small lithium coin cell.

Typical data retention time is in excess of 5 years with a 50 mA/h 3 V lithium cell. The M41T01 is supplied in an 8-lead plastic small outline package.

  • 所有功能

    • 2.0 to 5.5 V clock operating voltage
    • Counters for seconds, minutes, hours, day, date, month, years, and century
    • Software clock calibration
    • Automatic switchover and deselect circuitry
    • Ultra-low battery supply current of 800 nA
    • Low operating current of 300 μA
    • Battery and capacitor backup
    • Battery backup not recommended for 3.0 V applications (capacitor backup only)
    • Operating temperature of –40 to 85 °C
    • Automatic leap year compensation

EDA符号、封装和3D模型

STMicroelectronics - M41T01

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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**
M41T01M6F
批量生产
SO-8 工业 Ecopack3

M41T01M6F

Package:

SO-8

Material Declaration**:

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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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NVRAM size (B)
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M41T01M6F
Available at distributors

经销商的可用性 M41T01M6F

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M41T01M6F 批量生产

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产品型号:

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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