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DS17885S-5/T&R+ PDF预览

DS17885S-5/T&R+

更新时间： 2024-11-18 21:21:03
品牌 Logo 应用领域
美信 - MAXIM 时钟光电二极管外围集成电路
页数 文件大小 规格书
31页 672K
描述
Real Time Clock, Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, SOP-24

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中文翻译

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DS17885S-5/T&R+ 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, SOP24,.4针数：24
Reach Compliance Code：compliantECCN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外部数据总线宽度：8
信息访问方法：PARALLEL, MUXED BUS中断能力：Y
JESD-30 代码：R-PDSO-G24JESD-609代码：e3
长度：17.9 mm端子数量：24
计时器数量：1最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP24,.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：5 V
认证状态：Not Qualified座面最大高度：2.67 mm
子类别：Timer or RTC最大供电电压：5.5 V
最小供电电压：4.5 V标称供电电压：5 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL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：YES
宽度：7.5 mmuPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCK
Base Number Matches：1

DS17885S-5/T&R+ 数据手册

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DS17285/DS17287/  
DS17485/DS17487/  
DS17885/DS17887  
Real-Time Clocks  
General Description  
Features  
● Incorporates Industry-Standard DS12887 PC  
The DS17285, DS17485, DS17885, DS17287, DS17487,  
and DS17887 real-time clocks (RTCs) are designed to  
be successors to the industry-standard DS12885 and  
DS12887. The DS17285, DS17485, and DS17885 (here-  
after referred to as the DS17x85) provide a real-time  
clock/calendar, one time-of-day alarm, three maskable  
interrupts with a common interrupt output, a program-  
mable square wave, and 114 bytes of battery-backed  
NV SRAM. The DS17x85 also incorporates a number  
of enhanced functions including a silicon serial number,  
power-on/off control circuitry, and 2k, 4k, or 8kbytes of  
battery-backed NV SRAM. The DS17287, DS17487, and  
DS17887 (hereafter referred to as the DS17x87) integrate  
a quartz crystal and lithium energy source into a 24-pin  
encapsulated DIP package. The DS17x85 and DS17x87  
power-control circuitry allows the system to be powered  
on by an external stimulus such as a keyboard or by a  
time-and-date (wake-up) alarm. The PWR output pin is  
triggered by one or either of these events, and is used to  
turn on an external power supply. The PWR pin is under  
software control, so that when a task is complete, the  
system power can then be shut down.  
Clock Plus Enhanced Functions  
● RTC Counts Seconds, Minutes, Hours, Day, Date,  
Month, and Year with Leap Year Compensation  
Through 2099  
● Optional +3.0V or +5.0V Operation  
● SMI Recovery Stack  
● 64-Bit Silicon Serial Number  
● Power-Control Circuitry Supports System Power-  
On from Date/Time Alarm or Key Closure  
● Crystal Select Bit Allows Operation with 6pF or  
12.5pF Crystal  
● 12-Hour or 24-Hour Clock with AM and PM in  
12-Hour Mode  
● 114 Bytes of General-Purpose, Battery-Backed NV  
SRAM  
● Extended Battery-Backed NV SRAM  
• 2048 Bytes (DS17285/DS17287)  
• 4096 Bytes (DS17485/DS17487)  
• 8192 Bytes (DS17885/DS17887)  
For all devices, the date at the end of the month is auto-  
matically adjusted for months with fewer than 31 days,  
including correction for leap years. It also operates in  
either 24-hour or 12-hour format with an AM/PM indicator.  
A precision temperature-compensated circuit monitors  
● RAM Clear Function  
● Interrupt Output with Six Independently Maskable  
Interrupt Flags  
● Time-of-Day Alarm Once per Second to Once per  
the status of V . If a primary power failure is detected,  
CC  
Day  
the device automatically switches to a backup supply. A  
● End of Clock Update Cycle Flag  
lithium coin cell battery can be connected to the V  
BAT  
input pin on the DS17x85 to maintain time and date oper-  
ation when primary power is absent. The DS17x85 and  
● Programmable Square-Wave Output  
● Automatic Power-Fail Detect and Switch Circuitry  
DS17x87 include a V  
input used to power auxiliary  
BAUX  
● Available in PDIP, SO, or TSOP Package  
functions such as PWR control. The device is accessed  
through a multiplexed byte-wide interface.  
(DS17285, DS17485, DS17885)  
● Optional Encapsulated DIP (EDIP) Package with  
Integrated Crystal and Battery (DS17287,  
DS17487, DS17887)  
Applications  
● Embedded Systems  
● Utility Meters  
● Security Systems  
● Network Hubs, Bridges, and Routers  
● Optional Industrial Temperature Range Available  
● Underwriters Laboratory (UL) Recognized  
Ordering Information, Pin Configurations, and Typical  
Operating Circuit appear at end of data sheet.  
19-5222; Rev 2; 5/16  
1234567...31

中文翻译

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DS17885S-5/T&R+ 替代型号

型号 品牌 替代类型 描述 数据表
DS17885S-5/T&R MAXIM

完全替代

 Real Time Clock, Volatile, 1 Timer(s), CMOS, PDSO24, 0.300 INCH, SOP-24
DS17885S-5+ MAXIM

完全替代

 Real-Time Clocks
DS17885SN-5 MAXIM

完全替代

 Real-Time Clocks

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