Serial real-time clock (RTC) with alarm

下载数据手册

Order a free sample and buy from our distributors

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

    主要特性

    • 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

下载 下载

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
M41T80M6F SO-8 Tape And Reel -40 85
Active
0.941 10000 -
更多信息

ECCN (US):

EAR99

Country of Origin:

MOROCCO

查看供货情况

Distributor availability ofM41T80M6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1990 1 Order Now
Newark Element14 AMERICA 220 0 Order Now
MOUSER WORLDWIDE 2246 1 Order Now
Farnell Element14 EUROPE 928 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

1990

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

220

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

2246

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

928

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

Get sample

M41T80M6F

封装

SO-8

包装类型

Tape And Reel

Unit Price (US$)

0.941*

Distributor availability ofM41T80M6F

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1990 1 Order Now
Newark Element14 AMERICA 220 0 Order Now
MOUSER WORLDWIDE 2246 1 Order Now
Farnell Element14 EUROPE 928 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

1990

Min.Order

1

地区

WORLDWIDE Order Now

Newark Element14

库存

220

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

2246

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

928

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

Operating Temperature (°C)

(min)

-40

(max)

85

供货状态

Active

Unit Price (US$)

0.941

数量

10000

NVRAM size (B)

-

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

适合您的资源

相关应用

家居、建筑和城市自动化

软件

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS2929
      Serial access real-time clock with alarm
      5.1
      435.04 KB
      PDF
      DS2929

      Serial access real-time clock with alarm

    • 描述 版本 文档大小 操作
      AN3060
      串行实时时钟(RTC)应用指南
      1.0
      453.19 KB
      PDF
      AN1011
      ST NVRAM 和实时时钟(RTC)产品中使用的电池技术
      4.0
      416.58 KB
      PDF
      AN934
      How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products
      4.1
      123.42 KB
      PDF
      AN1216
      Implementing a periodic alarm with TIMEKEEPER® and serial real-time clocks (RTCs)
      2.0
      192.89 KB
      PDF
      AN4641
      集成TIMEKEEPER® 与实时时钟监控器功能
      1.0
      508.26 KB
      PDF
      AN923
      Managing century information using serial real-time clocks and TIMEKEEPER® NVRAMs
      4.0
      142.23 KB
      PDF
      AN1572
      串行实时时钟(RTC)的掉电时间戳功能
      2.0
      394.88 KB
      PDF
      AN1336
      Power-fail comparator for NVRAM supervisory devices
      2.0
      127.81 KB
      PDF
      AN3060

      串行实时时钟(RTC)应用指南

      AN1011

      ST NVRAM 和实时时钟(RTC)产品中使用的电池技术

      AN934

      How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products

      AN1216

      Implementing a periodic alarm with TIMEKEEPER® and serial real-time clocks (RTCs)

      AN4641

      集成TIMEKEEPER® 与实时时钟监控器功能

      AN923

      Managing century information using serial real-time clocks and TIMEKEEPER® NVRAMs

      AN1572

      串行实时时钟(RTC)的掉电时间戳功能

      AN1336

      Power-fail comparator for NVRAM supervisory devices

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Serial real-time clock ICs 1.0
      827.11 KB
      PDF

      Serial real-time clock ICs

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
M41T80M6F
Active
SO-8 工业 Ecopack1

M41T80M6F

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

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.