Serial real-time clock (RTC) with 56 bytes NVRAM

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  • The M41T56 is a low-power, serial real-time clock (RTC) with 56 bytes of NVRAM. A built-in 32,768 Hz oscillator (external crystal controlled) and the first 8 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 M41T56 clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. 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 10 years with a 50 mAh, 3 V lithium cell. The M41T56 is supplied in an 8-lead plastic SOIC package.

    主要特性

    • Counters for seconds, minutes, hours, day, date, month, years, 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 (100 kHz protocol)
    • Ultra-low battery supply current of 450 nA (typ at 3 V)
    • 5 V ±10% supply voltage
    • Timekeeping down to 2.5 V
    • Automatic power-fail detect and switch circuitry
    • 56 bytes of general purpose RAM
    • Software clock calibration to compensate crystal deviation due to temperature
    • Automatic leap year compensation
    • Operating temperature of –40 °C to 85 °C
    • Available in an 8-lead, 150-mil, plastic SOIC (SO8)
    • RoHS compliant
      • Lead-free second level interconnect

电路原理图

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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
M41T56M6F SO-8 Tape And Reel -40 85
批量生产
1.199 10000 56
更多信息

ECCN (US):

EAR99

Country of Origin:

MOROCCO

查看供货情况

Distributor availability ofM41T56M6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3836 1 Order Now
RS COMPONENTS EUROPE 1678 2 Order Now
FUTURE WORLDWIDE 1850 1 Order Now
ARROW EUROPE 7949 0 Order Now
MOUSER WORLDWIDE 2558 1 Order Now

代理商库存报告日期: 2019-11-28

代理商名称

DIGIKEY

库存

3836

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

1678

Min.Order

2

地区

EUROPE Order Now

FUTURE

库存

1850

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

7949

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2558

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-28

获取样片

M41T56M6F

封装

SO-8

包装类型

Tape And Reel

单价(US$)

1.199*

Distributor availability ofM41T56M6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3836 1 Order Now
RS COMPONENTS EUROPE 1678 2 Order Now
FUTURE WORLDWIDE 1850 1 Order Now
ARROW EUROPE 7949 0 Order Now
MOUSER WORLDWIDE 2558 1 Order Now

代理商库存报告日期: 2019-11-28

代理商名称

DIGIKEY

库存

3836

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

1678

Min.Order

2

地区

EUROPE Order Now

FUTURE

库存

1850

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

7949

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2558

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-28

Operating Temperature (°C)

(min)

-40

(max)

85

供货状态

批量生产

单价(US$)

1.199

数量

10000

NVRAM size (B)

56

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**
M41T56M6F
批量生产
SO-8 工业 Ecopack1

M41T56M6F

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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