Datasheet > 微控制器和处理器 > 计时器或实时时钟> DS3231SN

DS3231SN

更新时间： 2024-09-21 06:54:39

品牌	Logo	应用领域
美信 - MAXIM		晶体石英晶振温度补偿晶振
页数	文件大小	规格书
20页	363K
描述
Extremely Accurate I2C-Integrated RTC/TCXO/Crystal

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技术参数
数据手册
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DS3231SN 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOP,	针数：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.13
最大时钟频率：	0.032 MHz	信息访问方法：	I2C
JESD-30 代码：	R-PDSO-G16	长度：	10.3 mm
湿度敏感等级：	1	端子数量：	16
计时器数量：	1	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	240
认证状态：	Not Qualified	座面最大高度：	2.65 mm
最大供电电压：	5.5 V	最小供电电压：	2.3 V
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	TIN/LEAD (SN/PB)	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	20	宽度：	7.5 mm
uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK	Base Number Matches：	1

DS3231SN 数据手册

19-5170; Rev 7; 3/10

Extremely Accurate I C-Integrated

RTC/TCXO/Crystal

DS231

General Description

Features

♦ Accuracy 2ppm from 0°C to +40°C

The DS3231 is a low-cost, extremely accurate I C real-

time clock (RTC) with an integrated temperature-

compensated crystal oscillator (TCXO) and crystal. The

device incorporates a battery input, and maintains accu-

rate timekeeping when main power to the device is inter-

rupted. The integration of the crystal resonator enhances

the long-term accuracy of the device as well as reduces

the piece-part count in a manufacturing line. The DS3231

is available in commercial and industrial temperature

ranges, and is offered in a 16-pin, 300-mil SO package.

♦ Accuracy 3.5ppm from -40°C to +85°C

♦ Battery Backup Input for Continuous

Timekeeping

♦ Operating Temperature Ranges

Commercial: 0°C to +70°C

Industrial: -40°C to +85°C

♦ Low-Power Consumption

♦ Real-Time Clock Counts Seconds, Minutes,

Hours, Day, Date, Month, and Year with Leap Year

Compensation Valid Up to 2100

The RTC maintains seconds, minutes, hours, day, date,

month, and year information. The date at the end of the

month is automatically adjusted for months with fewer

than 31 days, including corrections for leap year. The

clock operates in either the 24-hour or 12-hour format

with an AM/PM indicator. Two programmable time-of-

day alarms and a programmable square-wave output

are provided. Address and data are transferred serially

♦ Two Time-of-Day Alarms

♦ Programmable Square-Wave Output

♦ Fast (400kHz) I C Interface

♦ 3.3V Operation

♦ Digital Temp Sensor Output: 3°C Accuracy

♦ Register for Aging Trim

♦ RST Output/Pushbutton Reset Debounce Input

through an I C bidirectional bus.

♦ Underwriters Laboratories (UL ) Recognized

A precision temperature-compensated voltage refer-

ence and comparator circuit monitors the status of V

to detect power failures, to provide a reset output, and

to automatically switch to the backup supply when nec-

essary. Additionally, the RST pin is monitored as a

pushbutton input for generating a µP reset.

Ordering Information

TOP

PART

TEMP RANGE PIN-PACKAGE

MARK

DS3231

DS3231N

DS3231S#

0°C to +70°C 16 SO

DS3231SN# -40°C to +85°C 16 SO

Applications

Utility Power Meters

#Denotes a RoHS-compliant device that may include lead that

is exempt under RoHS requirements. The lead finish is JESD97

category e3, and is compatible with both lead-based and lead-

free soldering processes. A "#" anywhere on the top mark

denotes a RoHS-compliant device.

Servers

Telematics

GPS

Pin Configuration appears at end of data sheet.

Typical Operating Circuit

= t /C

R B

SCL

SDA

INT/SQW

32kHz

SCL

SDA

μP

BAT

RST

DS3231

PUSHBUTTON

RESET

N.C.

GND

UL is a registered trademark of Underwriters Laboratories, Inc.

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...20

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DS3231SN 替代型号

型号	品牌	替代类型	描述	数据表
DS3231SN#T&R	MAXIM	完全替代	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOIC-
DS3231SN#	MAXIM	完全替代	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO16, 0.300 INCH, SOIC-16
DS3231S#	MAXIM	完全替代	暂无描述

与DS3231SN相关器件

型号	品牌	获取价格	描述	数据表
DS3231SN-	MAXIM	获取价格	Extremely Accurate I2C-Integrated
DS3231SN#	MAXIM	获取价格	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO16, 0.300 INCH, SOIC-16
DS3231SN#T&R	MAXIM	获取价格	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOIC-
DS3231SN/T&R	MAXIM	获取价格	Real Time Clock, 1 Timer(s), CMOS, PDSO16, 0.300 INCH, SOIC-16
DS3231SN+	DALLAS	获取价格	Extremely Accurate I2C-Integrated RTC/TXO/Crystal
DS3231SN+TR	MAXIM	获取价格	Timer or RTC, Non-Volatile, 1 Timer(s), CMOS, PDSO16, 0.300 INCH, ROHS COMPLIANT, SOIC-16
DS3232	MAXIM	获取价格	Extremely Accurate I2C RTC with Integrated Crystal and SRAM
DS3232	ADI	获取价格	超高精度、I2C RTC，集成晶体和SRAM
DS3232_07	MAXIM	获取价格	Extremely Accurate I2C RTC with Integrated Crystal and SRAM
DS3232_08	MAXIM	获取价格	Extremely Accurate I2C RTC with Integrated Crystal and SRAM

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