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DS3232M

更新时间： 2024-02-27 16:48:36

品牌	Logo	应用领域
美信 - MAXIM		静态存储器时钟
页数	文件大小	规格书
23页	1752K
描述
±5ppm, I2C Real-Time Clock with SRAM

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技术参数
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DS3232M 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOP, SOP20,.4	针数：	20
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	Factory Lead Time：	6 weeks
风险等级：	0.7	最大时钟频率：	0.032 MHz
外部数据总线宽度：		信息访问方法：	I2C
中断能力：	Y	JESD-30 代码：	R-PDSO-G20
JESD-609代码：	e3	长度：	12.8 mm
湿度敏感等级：	1	端子数量：	20
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	封装等效代码：	SOP20,.4
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	3.3 V
认证状态：	Not Qualified	座面最大高度：	2.65 mm
子类别：	Timer or RTC	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：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	最短时间：	SECONDS
处于峰值回流温度下的最长时间：	NOT SPECIFIED	易失性：	NO
宽度：	7.5 mm	uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK
Base Number Matches：	1

DS3232M 数据手册

19-6247; Rev 0; 3/12

DS3232M

±±55pm, C,Real-Tipe,Clock,with,SRAM,

General Description

Features

The DS3232M is a low-cost, extremely accurate, I C

S Timekeeping Accuracy ±±ppm ꢀ±(ꢁ0.4 2ecꢂnoꢃ

real-time clock (RTC) with 236 bytes of battery-backed

SRAM. The device incorporates a battery input and

maintains accurate timekeeping when main power to the

device is interrupted. The integration of the microelec-

tromechanical systems (MEMS) resonator enhances the

long-term accuracy of the device and reduces the piece-

part count in a manufacturing line.

Day) frꢂm -0(NC tꢂ +8±NC

S 4.6 Bytes ꢂf Battery-Backeo User 2RAM

S Battery Backup fꢂr Cꢂntinuꢂus Timekeeping

S Lꢂw Pꢂwer Cꢂnsumptiꢂn

S Functiꢂnally Cꢂmpatible tꢂ D2.4.4

S Cꢂmplete Clꢂck Calenoar Functiꢂnality Incluoing

2ecꢂnos, Minutes, Hꢂurs, Day, Date, Mꢂnth, ano

Year with Leap Year Cꢂmpensatiꢂn Up tꢂ Year

41((

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 1Hz output are provided. Address and data

S Twꢂ Time-ꢂf-Day Alarms

S 1Hz ano .4ꢁ768kHz Outputs

S Reset Output ano Pushbuttꢂn Input with

are transferred serially through an I C bidirectional bus.

Debꢂunce

A precision temperature-compensated voltage reference

S Fast ꢀ0((kHz) I C-Cꢂmpatible 2erial Bus

and comparator circuit monitors the status of V

S +4ꢁ.V tꢂ +0ꢁ±V 2upply Vꢂltage

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

automatically switch to the backup supply when neces-

sary. Additionally, the RST pin is monitored as a pushbut-

ton input for generating a microprocessor reset. See the

Block Diagram for more details.

S Digital Temp 2ensꢂr with ±.NC Accuracy

S -0(NC tꢂ +8±NC Temperature Range

S 8-Pin 2O ꢀ1±( mils) Package

S Unoerwriters Labꢂratꢂries ꢀUL) Recꢂgnizeo

Applications

Typical Operating Circuit

Power Meters

Industrial Applications

Ordering Information appears at end of data sheet.

SCL

I/O PORT

DS3232M

SDA

INT/SQW

32KHZ

INTERRUPTS

CPU

RST

BAT

PUSH-

BUTTON

RESET

For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/DS3232M.related

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may

be simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata.

�� 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.

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与DS3232M相关器件

型号	品牌	获取价格	描述	数据表
DS3232M_V1	MAXIM	获取价格	Â±5ppm, I2C Real-Time Clock with SRAM
DS3232MZ	MAXIM	获取价格	±5ppm, I2C Real-Time Clock with SRAM
DS3232MZ/V+	MAXIM	获取价格	Â±5ppm, I2C Real-Time Clock with SRAM
DS3232MZ+	MAXIM	获取价格	Â±5ppm, I2C Real-Time Clock with SRAM
DS3232N	MAXIM	获取价格	Extremely Accurate I2C RTC with Integrated Crystal and SRAM
DS3232S	MAXIM	获取价格	Extremely Accurate I2C RTC with Integrated Crystal and SRAM
DS3232S-	MAXIM	获取价格	Extremely Accurate I2C RTC with Integrated Crystal and SRAM
DS3232S#	MAXIM	获取价格	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO20, 0.300 INCH, ROHS COMPLIANT, SOIC-
DS3232S#T&R	MAXIM	获取价格	Real Time Clock, Non-Volatile, 1 Timer(s), CMOS, PDSO20, 0.300 INCH, ROHS COMPLIANT, SOIC-
DS3232SN	MAXIM	获取价格	Extremely Accurate I2C RTC with Integrated Crystal and SRAM

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