M41T82

批量生产
Design Win

串行I²C总线实时时钟(RTC),支持电池切换

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概述
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

The M41T8x are low-power serial I2C real-time clocks (RTCs) with a built-in 32.768 kHz oscillator (external crystal-controlled for the QFN16 and SO8 packages, embedded crystal for the SOX18 package). Eight bytes of the register map (see Table 2 on page 23) are used for the clock/calendar function and are configured in binary-coded decimal (BCD) format. An additional 17 bytes of the register map provide status/control of the two alarms, watchdog, 8-bit counter, and square wave functions. An additional seven bytes are made available as user SRAM. Addresses and data are transferred serially via a two-line, bidirectional I2C interface. The built-in address register is incremented automatically after each WRITE or READ data byte. The M41T8x has a built-in power sense circuit which detects power failures and automatically switches to the battery supply when a power failure occurs. The energy needed to sustain the clock operations can be supplied by a small lithium button battery when a power failure occurs.
Functions available to the user include a non-volatile, time-of-day clock/calendar, two alarm interrupts, watchdog timer, programmable 8-bit counter, and square wave outputs. 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), 30, and 31 day months are made automatically. The M41T83 is supplied in either a QFN16 or an SOX18, 300 mil SOIC which includes an embedded 32 KHz crystal. The SOX18 package requires only a user-supplied battery to provide non-volatile operation. The M41T82 is available only in an SO8 package.
  • 所有功能

    • Ultra-low battery supply current of 365 nA
    • Factory-calibrated accuracy of ±5 ppm typical after 2 reflows (SOX18)
      • Much better accuracies achievable using built-in programmable analog and digital calibration circuits
    • 2.0 V to 5.5 V clock operating voltage
    • Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
    • Automatic switchover and reset output circuitry (fixed reference)
      • M41T83S: VCC= 3.00 V to 5.50 V
      • M41T83R: VCC= 2.70 V to 5.50 V
      • M41T83Z: VCC= 2.38 V to 5.50 V
    • Serial interface supports I2C bus (400 kHz protocol)
    • Programmable alarm with interrupt function (valid even during battery backup mode)
    • Optional 2ndprogrammable alarm available
    • Square wave output defaults to 32 KHz on power-up (M41T83 only)
    • RESET (RST) output
    • Watchdog timer
    • Programmable 8-bit counter/timer
    • 7 bytes of battery-backed user SRAM
    • Battery low flag
    • Low operating current of 80 μA
    • Oscillator stop detection
    • Battery or SuperCap™ backup
    • Operating temperature of –40 °C to 85 °C
    • Package options
      • a 16-lead QFN (M41T83)
      • an 8-lead SOIC (M41T82) or
      • an 18-lead embedded crystal SOIC (M41T83)
    • RoHS compliance: lead-free components are compliant with the RoHS directive

电路原理图

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EDA符号、封装和3D模型

STMicroelectronics - M41T82

为您的应用下载所有EDA符号、封装和3D模型,加快您的设计速度。您可以从大量CAD格式中进行选择,以匹配您的设计工具链。

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符号

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3D model

3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
M41T82RM6F
批量生产
SO-8 工业 Ecopack1
M41T82SM6F
批量生产
SO-8 工业 Ecopack1
M41T82ZM6F
批量生产
SO-8 工业 Ecopack1

M41T82RM6F

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack1

M41T82SM6F

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack1

M41T82ZM6F

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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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产品型号
Order from distributors
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Budgetary Price (US$)*/Qty
NVRAM size (B)
Country of Origin
最小值
最大值
M41T82ZM6F 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape and Reel SO-8 -40 85

7

MOROCCO

M41T82RM6F Available at 1 distributors

经销商的可用性M41T82RM6F

代理商名称
地区 库存 最小订购量 第三方链接
RS COMPONENTS EUROPE 480 1 Buy from Distributor

代理商库存报告日期: 2022-08-01

代理商名称

RS COMPONENTS

库存

480

Min.Order

1

代理商库存报告日期: 2022-08-01

批量生产
EAR99 NEC Tape and Reel SO-8 -40 85

7

MOROCCO

M41T82SM6F Available at 2 distributors

经销商的可用性M41T82SM6F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2069 1 Buy from Distributor
RS COMPONENTS EUROPE 2495 1 Buy from Distributor

代理商库存报告日期: 2022-08-02

代理商名称

DIGIKEY

库存

2069

Min.Order

1

地区

WORLDWIDE Buy from Distributor

RS COMPONENTS

库存

2495

Min.Order

1

代理商库存报告日期: 2022-08-02

批量生产
EAR99 NEC Tape and Reel SO-8 -40 85

7

MOROCCO

M41T82ZM6F 批量生产

封装:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

M41T82ZM6F

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

NVRAM size (B):

7

Country of Origin:

MOROCCO

无法联系到经销商,请联系我们的销售办事处

M41T82RM6F 批量生产

封装:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

M41T82RM6F

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

NVRAM size (B):

7

Country of Origin:

MOROCCO

经销商的可用性M41T82RM6F

代理商名称
地区 库存 最小订购量 第三方链接
RS COMPONENTS EUROPE 480 1 Buy from Distributor

代理商库存报告日期: 2022-08-01

代理商名称

RS COMPONENTS

库存

480

Min.Order

1

代理商库存报告日期: 2022-08-01

M41T82SM6F 批量生产

封装:
SO-8
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

产品型号:

M41T82SM6F

ECCN (EU):

NEC

包装类型:

Tape and Reel

Operating Temperature (°C)

Min:

-40

Max:

85

NVRAM size (B):

7

Country of Origin:

MOROCCO

经销商的可用性M41T82SM6F

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 2069 1 Buy from Distributor
RS COMPONENTS EUROPE 2495 1 Buy from Distributor

代理商库存报告日期: 2022-08-02

代理商名称

DIGIKEY

库存

2069

Min.Order

1

地区

WORLDWIDE Buy from Distributor

RS COMPONENTS

库存

2495

Min.Order

1

代理商库存报告日期: 2022-08-02

Swipe or click the button to explore more details Don't show this again

(*) 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