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DS12R885-5 PDF预览

DS12R885-5

更新时间: 2024-09-20 22:12:31
品牌 Logo 应用领域
美信 - MAXIM 计时器或实时时钟微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
22页 1091K
描述
RTC with Constant-Voltage Trickle Charger

DS12R885-5 技术参数

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, SOP24,.4
针数:24Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.8Is Samacsys:N
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:e0
长度:17.9 mm端子数量:24
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:SOP24,.4
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
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: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
最短时间:SECONDS易失性:NO
宽度:7.5 mmuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

DS12R885-5 数据手册

 浏览型号DS12R885-5的Datasheet PDF文件第2页浏览型号DS12R885-5的Datasheet PDF文件第3页浏览型号DS12R885-5的Datasheet PDF文件第4页浏览型号DS12R885-5的Datasheet PDF文件第5页浏览型号DS12R885-5的Datasheet PDF文件第6页浏览型号DS12R885-5的Datasheet PDF文件第7页 
Rev 1; 4/04  
RTC with Constant-Voltage Trickle Charger  
General Description  
Features  
The DS12R885 is a functional drop-in replacement for  
the DS12885 real-time clock (RTC). The device pro-  
vides an RTC/calendar, one time-of-day alarm, three  
maskable interrupts with a common interrupt output, a  
programmable square wave, and 114 bytes of battery-  
backed static RAM. The date at the end of the month is  
automatically adjusted for months with fewer than 31  
days, including correction for leap years. It also oper-  
ates in either 24-hour or 12-hour format with an AM/PM  
indicator. A precision temperature-compensated circuit  
Trickle-Charge Capability for a Rechargeable  
Battery or Super Cap  
Selectable Intel or Motorola Bus Timing  
RTC Counts Seconds, Minutes, Hours, Day, Date,  
Month, and Year with Leap-Year Compensation to  
2100  
Interrupt Output with Three Independently  
Maskable Interrupt Flags  
Time-of-Day Alarm is Once-per-Second to Once-  
per-Day  
Periodic Rates from 122µs to 500ms  
monitors the status of V . If a primary power failure is  
CC  
detected, the device automatically switches to a back-  
up supply. The V  
pin supports a rechargeable  
BACKUP  
battery or a super cap and includes an integrated,  
always enabled trickle charger. The DS12R885 is  
accessed through a multiplexed byte-wide interface,  
which supports both Intel and Motorola modes. The  
DS12CR887 and DS12R887 integrate the DS12R885  
die with a crystal and battery.  
End-of-Clock Update Cycle Flag  
14 Bytes of Clock and Control Registers  
114 Bytes of General-Purpose RAM with Clear Input  
Programmable Square-Wave Output  
Automatic Power-Fail Detect and Switch Circuitry  
+5.0V or +3.3V Operation  
Applications  
Industrial Temperature Range  
Embedded Systems  
Utility Meters  
DS12CR887 Encapsulated DIP (EDIP) Module with  
Integrated Battery and Crystal  
DS12R887 BGA Module Surface-Mountable  
Package with Integrated Crystal and Rechargeable  
Battery  
Security Systems  
Network Hubs, Bridges, and Routers  
Typical Operating Circuit  
Ordering Information  
PIN-  
PACKAGE  
CRYSTAL  
PART  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
TOP MARK  
V
CC  
24 SO  
(300 mils)  
DS12R885-5  
DS12R885-33  
DS12R885-5  
X1  
AS  
X2  
V
CC  
RESET  
24 SO  
(300 mils)  
DS12R885-33  
DS12CR887-5  
DS12CR887-33  
RCLR  
R/W  
DS  
24 EDIP  
(700 mils)  
DS12CR887-5 -40°C to +85°C  
DS12CR887-33 -40°C to +85°C  
DS83C520  
DS12R885  
CS  
24 EDIP  
(700 mils)  
AD(0–7)  
IRQ  
SQW  
V
BACKUP  
DS12R887-5*  
-40°C to +85°C 48 BGA  
DS12R887-5  
DS12R887-33  
SUPER  
CAP  
MOT  
±
DS12R887-33* -40°C to +85°C 48 BGA  
GND  
*Future product—contact factory for availability.  
Pin Configurations appear at end of data sheet.  
______________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  

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