M41T82

批量生产

Serial I²C bus real-time clock (RTC) with battery switchover

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  • 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.

    主要特性

    • 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

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样片和购买

产品型号
封装
包装类型
温度(ºC) 供货状态
预算价格(US$)
数量
NVRAM size (B)
更多信息
从分销商订购
从ST订购
min
max
M41T82ZM6F SO-8 Tape And Reel -40 85
批量生产
1.081 10000 12
更多信息

ECCN (US):

EAR99

Country of Origin:

MOROCCO

查看供货情况

Distributor availability ofM41T82ZM6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3086 1 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 176 0 Order Now
MOUSER WORLDWIDE 2716 1 Order Now
Farnell Element14 EUROPE 1488 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

DIGIKEY

库存

3086

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176

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2716

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Farnell Element14

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1488

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1

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EUROPE Order Now

代理商库存报告日期: 2019-12-13

获取样片
M41T82RM6F SO-8 Tape And Reel -40 85
批量生产
1.081 10000 12
更多信息

ECCN (US):

EAR99

Country of Origin:

MOROCCO

查看供货情况

Distributor availability ofM41T82RM6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3748 1 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 7500 0 Order Now
Newark Element14 AMERICA 597 0 Order Now
MOUSER WORLDWIDE 14529 1 Order Now
Farnell Element14 EUROPE 4257 1 Order Now
ANGLIA Live EUROPE 2495 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

DIGIKEY

库存

3748

Min.Order

1

地区

WORLDWIDE Order Now

FUTURE

库存

5000

Min.Order

2500

地区

WORLDWIDE Order Now

ARROW

库存

7500

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

597

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

14529

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

4257

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

2495

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-13

获取样片
M41T82SM6F SO-8 Tape And Reel -40 85
批量生产
1.081 10000 12
更多信息

ECCN (US):

EAR99

Country of Origin:

MOROCCO

查看供货情况

Distributor availability ofM41T82SM6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2128 1 Order Now
RS COMPONENTS EUROPE 2500 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 10000 0 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 11623 1 Order Now
Farnell Element14 EUROPE 888 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

DIGIKEY

库存

2128

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

2500

Min.Order

1

地区

EUROPE Order Now

AVNET

库存

5000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

10000

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

625

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

11623

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

888

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-13

获取样片

M41T82ZM6F

封装

SO-8

包装类型

Tape And Reel

单价(US$)

1.081*

Distributor availability ofM41T82ZM6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3086 1 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 176 0 Order Now
MOUSER WORLDWIDE 2716 1 Order Now
Farnell Element14 EUROPE 1488 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

DIGIKEY

库存

3086

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2500

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

176

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

2716

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1488

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-13

Operating Temperature (°C)

(min)

-40

(max)

85

供货状态

批量生产

单价(US$)

1.081

数量

10000

NVRAM size (B)

12

ECCN (US)

EAR99

Country of Origin

MOROCCO

M41T82RM6F

封装

SO-8

包装类型

Tape And Reel

单价(US$)

1.081*

Distributor availability ofM41T82RM6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3748 1 Order Now
FUTURE WORLDWIDE 5000 2500 Order Now
ARROW EUROPE 7500 0 Order Now
Newark Element14 AMERICA 597 0 Order Now
MOUSER WORLDWIDE 14529 1 Order Now
Farnell Element14 EUROPE 4257 1 Order Now
ANGLIA Live EUROPE 2495 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

DIGIKEY

库存

3748

Min.Order

1

地区

WORLDWIDE Order Now

FUTURE

库存

5000

Min.Order

2500

地区

WORLDWIDE Order Now

ARROW

库存

7500

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

597

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

14529

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

4257

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

2495

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-13

Operating Temperature (°C)

(min)

-40

(max)

85

供货状态

批量生产

单价(US$)

1.081

数量

10000

NVRAM size (B)

12

ECCN (US)

EAR99

Country of Origin

MOROCCO

M41T82SM6F

封装

SO-8

包装类型

Tape And Reel

单价(US$)

1.081*

Distributor availability ofM41T82SM6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2128 1 Order Now
RS COMPONENTS EUROPE 2500 1 Order Now
AVNET AMERICA 5000 0 Order Now
ARROW EUROPE 10000 0 Order Now
Newark Element14 AMERICA 625 0 Order Now
MOUSER WORLDWIDE 11623 1 Order Now
Farnell Element14 EUROPE 888 1 Order Now

代理商库存报告日期: 2019-12-13

代理商名称

DIGIKEY

库存

2128

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

2500

Min.Order

1

地区

EUROPE Order Now

AVNET

库存

5000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

10000

Min.Order

0

地区

EUROPE Order Now

Newark Element14

库存

625

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

11623

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

888

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-12-13

Operating Temperature (°C)

(min)

-40

(max)

85

供货状态

批量生产

单价(US$)

1.081

数量

10000

NVRAM size (B)

12

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) 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

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产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
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

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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