产品概述

描述

The M41T66 is a low-power serial real-time clock (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 8 registers provide status/control of alarm, square wave, calibration, and watchdog functions. 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. Functions available to the user include a time-of-day clock/calendar, alarm interrupts, programmable square wave output, and watchdog 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), 30- and 31-day months are made automatically.
The M41T66 is supplied in a 16-pin QFN.

所有功能
Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century

32 KHz crystal oscillator integrating load capacitance and high crystal series resistance operation

Oscillator stop detection monitors clock operation

Serial interface supports I²C bus (400 kHz)

525 nA timekeeping current at 3 V

Low operating current of 35 μA (at 400 kHz)

Timekeeping down to 1.0 V

1.3 V to 4.4 V I²C bus operating voltage

Allows use in lithium ion rechargeable applications
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 with interrupt function

Accurate programmable watchdog (from 62.5 ms to 31 min)

Software clock calibration to compensate deviation of crystal due to temperature

Automatic leap year compensation

Operating temperature of –40 to 85 °C

Lead-free 16-pin QFN package
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Low-power, real-time clock ICs for portable and wearable devices

M41T62LC6F RTC

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Clocks and Timers Software

	产品型号	状态	描述	类型	供应商
Worldwide,Asia,Europe,Africa,North America,South America,Oceania,Afghanistan,Bahrain,Bangladesh,Bhutan,Brunei,Burma (Myanmar),Cambodia,China,East Timor,India,Indonesia,Iraq,Japan,Jordan,Kazakhstan,Kuwait,Kyrgyzstan,Laos,Malaysia,Maldives,Mongolia,Nepal,Oman,Pakistan,Philippines,Qatar,Russian Federation,Saudi Arabia,Singapore,South Korea,Sri Lanka,Taiwan,Tajikistan,Thailand,Turkmenistan,United Arab Emirates,Uzbekistan,Vietnam,Yemen,Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Israel,Italy,Latvia,Liechtenstein,Lithuania,Luxembourg,Macedonia,Malta,Moldova,Monaco,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,San Marino,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,Turkey,Ukraine,United Kingdom,Vatican City,Algeria,Angola,Benin,Botswana,Burkina,Burundi,Cameroon,Cape Verde,Central African Republic,Chad,Comoros,Democratic Republic of Congo,Djibouti,Egypt,Equatorial Guinea,Eritrea,Ethiopia,Gabon,Gambia,Ghana,Guinea,Guinea-Bissau,Ivory Coast,Kenya,Lesotho,Liberia,Libya,Madagascar,Malawi,Mali,Mauritania,Mauritius,Morocco,Mozambique,Namibia,Niger,Nigeria,Rwanda,Sao Tome and Principe,Senegal,Seychelles,Sierra Leone,Somalia,South Africa,Swaziland,Tanzania,Togo,Tunisia,Uganda,Zambia,Zimbabwe,Antigua and Barbuda,Bahamas,Barbados,Belize,Canada,Costa Rica,Dominica,Dominican Republic,El Salvador,Grenada,Guatemala,Haiti,Honduras,Jamaica,Mexico,Nicaragua,Panama,Saint Kitts and Nevis,Saint Lucia,Saint Vincent and the Grenadines,Trinidad and Tobago,United States,Argentina,Bolivia,Brazil,Chile,Colombia,Ecuador,Guyana,Paraguay,Peru,Suriname,Uruguay,Venezuela,Australia,Fiji,Kiribati,Marshall Islands,Micronesia,Nauru,New Zealand,Palau,Papua New Guinea,Samoa,Solomon Islands,Tonga,Tuvalu,Vanuatu	STSW-SRTC001	批量生产	串行RTC的I2C代码	时钟与定时电路软件	ST	STSW-SRTC001 描述: 串行RTC的I2C代码
Worldwide,Asia,Europe,Africa,North America,South America,Oceania,Afghanistan,Bahrain,Bangladesh,Bhutan,Brunei,Burma (Myanmar),Cambodia,China,East Timor,India,Indonesia,Iraq,Japan,Jordan,Kazakhstan,Kuwait,Kyrgyzstan,Laos,Malaysia,Maldives,Mongolia,Nepal,Oman,Pakistan,Philippines,Qatar,Russian Federation,Saudi Arabia,Singapore,South Korea,Sri Lanka,Taiwan,Tajikistan,Thailand,Turkmenistan,United Arab Emirates,Uzbekistan,Vietnam,Yemen,Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Israel,Italy,Latvia,Liechtenstein,Lithuania,Luxembourg,Macedonia,Malta,Moldova,Monaco,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,San Marino,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,Turkey,Ukraine,United Kingdom,Vatican City,Algeria,Angola,Benin,Botswana,Burkina,Burundi,Cameroon,Cape Verde,Central African Republic,Chad,Comoros,Democratic Republic of Congo,Djibouti,Egypt,Equatorial Guinea,Eritrea,Ethiopia,Gabon,Gambia,Ghana,Guinea,Guinea-Bissau,Ivory Coast,Kenya,Lesotho,Liberia,Libya,Madagascar,Malawi,Mali,Mauritania,Mauritius,Morocco,Mozambique,Namibia,Niger,Nigeria,Rwanda,Sao Tome and Principe,Senegal,Seychelles,Sierra Leone,Somalia,South Africa,Swaziland,Tanzania,Togo,Tunisia,Uganda,Zambia,Zimbabwe,Antigua and Barbuda,Bahamas,Barbados,Belize,Canada,Costa Rica,Dominica,Dominican Republic,El Salvador,Grenada,Guatemala,Haiti,Honduras,Jamaica,Mexico,Nicaragua,Panama,Saint Kitts and Nevis,Saint Lucia,Saint Vincent and the Grenadines,Trinidad and Tobago,United States,Argentina,Bolivia,Brazil,Chile,Colombia,Ecuador,Guyana,Paraguay,Peru,Suriname,Uruguay,Venezuela,Australia,Fiji,Kiribati,Marshall Islands,Micronesia,Nauru,New Zealand,Palau,Papua New Guinea,Samoa,Solomon Islands,Tonga,Tuvalu,Vanuatu	STSW-SRTC002	批量生产	SPI代码 - 串行RTC	时钟与定时电路软件	ST	STSW-SRTC002 描述: SPI代码 - 串行RTC

EDA符号、封装和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**
M41T66Q6F	NRND	QFN-16L	工业	Ecopack2	PDF XML

M41T66Q6F

Package:

QFN-16L

Material Declaration**:

PDF XML

More Info

(**) 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）		NVRAM size (B)	Country of Origin	Budgetary Price (US$)*/Qty	NVRAM size (B)	Country of Origin
	产品型号	Order from distributors	从ST订购	供货状态	ECCN (US)	ECCN (EU)	包装类型	封装	最小值	最大值	NVRAM size (B)	Country of Origin	Budgetary Price (US$)*/Qty	NVRAM size (B)	Country of Origin
	M41T66Q6F	无法联系到经销商，请联系我们的销售办事处	Buy Direct Free Sample	NRND	EAR99	NEC	Tape and Reel	QFN-16L	-40	85	-	MALAYSIA		-	MALAYSIA