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DS1338U-3 PDF预览

DS1338U-3

更新时间： 2024-02-20 10:19:43
品牌 Logo 应用领域
达拉斯 - DALLAS 计时器或实时时钟微控制器和处理器
页数 文件大小 规格书
15页 373K
描述
I2C RTC with 56-Byte NV RAM

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DS1338U-3 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：TSSOP, TSSOP8,.19针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8473.30.11.80Factory Lead Time：6 weeks
风险等级：5.11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：NJESD-30 代码：S-PDSO-G8
JESD-609代码：e3长度：3 mm
湿度敏感等级：1端子数量：8
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：TSSOP封装等效代码：TSSOP8,.19
封装形状：SQUARE封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260电源：3 V
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Timer or RTC最大供电电压：5.5 V
最小供电电压：2.7 V标称供电电压：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：0.65 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：3 mmuPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCK
Base Number Matches：1

DS1338U-3 数据手册

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DS1338  
I2C RTC with 56-Byte NV RAM  
www.maxim-ic.com  
GENERAL DESCRIPTION  
FEATURES  
The DS1338 serial real-time clock (RTC) is a low-  
power, full binary-coded decimal (BCD)  
clock/calendar plus 56 bytes of NV SRAM. Address  
and data are transferred serially through an I2C™  
interface. The clock/calendar provides seconds,  
minutes, hours, day, date, month, and year  
information. The end of the month date 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  
AM/PM indicator. The DS1338 has a built-in power-  
sense circuit that detects power failures and  
automatically switches to the battery supply.  
Cꢀ RTC Counts Seconds, Minutes, Hours, Date of  
the Month, Month, Day of the Week, and Year  
with Leap-Year Compensation Valid Up to 2100  
Cꢀ Available in a Surface-Mount Package with an  
Integrated Crystal (DS1338C)  
Cꢀ 56-Byte Battery-Backed NV RAM for Data  
Storage  
Cꢀ I2C Serial Interface  
Cꢀ Programmable Square-Wave Output Signal  
Cꢀ Automatic Power-Fail Detect and Switch Circuitry  
Cꢀ Underwriters Laboratory (UL) Recognized  
APPLICATIONS  
ORDERING INFORMATION  
Handhelds (GPS, POS Terminal)  
PART  
TEMP RANGE PIN-PACKAGE  
TOP MARK  
Consumer Electronics (Set-Top Box, Digital  
Recording, Network Appliance)  
DS1338Z-18  
-40°C to +85°C 8 SO (150 mils)  
DS1338-18  
Office Equipment (Fax/Printer, Copier)  
DS1338Z-3  
DS1338Z-33  
DS1338U-18  
-40°C to +85°C 8 SO (150 mils)  
-40°C to +85°C 8 SO (150 mils)  
DS1338-3  
Medical (Glucometer, Medicine Dispenser)  
Telecommunications (Router, Switcher, Server)  
DS1338-33  
1338  
rr-18  
1338  
rr-3  
Other (Utility Meter, Vending Machine, Thermostat,  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
8 ꢀSOP  
8 ꢀSOP  
8 ꢀSOP  
Modem)  
DS1338U-3  
1338  
TYPICAL OPERATING CIRCUIT  
DS1338U-33  
DS1338C-18  
DS1338C-3  
DS1338C-33  
rr-33  
VCC  
-40°C to +85°C 16 SO (300 mils) DS1338C-18  
-40°C to +85°C 16 SO (300 mils) DS1338C-3  
-40°C to +85°C 16 SO (300 mils) DS1338C-33  
VCC  
CRYSTAL  
VCC  
RPU  
RPU  
rr = second line, revision level  
X1  
X2  
VCC  
SQW/OUT  
SCL  
i
Pin Configurations appear at end of data sheet.  
CPU  
DS1338  
SDA  
VBAT  
I2C is a trademark of Philips Corp. Purchase of I2C components from  
Maxim Integrated Products, Inc., or one of its sublicensed Associated  
Companies, conveys a license under the Philips I2C Patent Rights to  
use these components in an I2C system, provided that the system  
conforms to the I2C Standard Specification as defined by Philips.  
GND  
RPU = tR / CB  
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.  
1 of 15  
REV: 091404  
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