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DS12885T PDF预览

DS12885T

更新时间: 2024-11-26 22:54:35
品牌 Logo 应用领域
达拉斯 - DALLAS 外围集成电路时钟
页数 文件大小 规格书
4页 134K
描述
Real-Time Clock

DS12885T 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:TQFP-32Reach Compliance Code:unknown
风险等级:5.7其他特性:DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING
外部数据总线宽度:8信息访问方法:PARALLEL, MUXED BUS
中断能力:YJESD-30 代码:S-PQFP-G32
JESD-609代码:e0端子数量:32
计时器数量:1片上数据RAM宽度:8
最高工作温度:70 °C最低工作温度:
最大输出时钟频率:0.008192 MHz封装主体材料:PLASTIC/EPOXY
封装代码:QFP封装等效代码:TQFP32,.35SQ,32
封装形状:SQUARE封装形式:FLATPACK
电源:5 V认证状态:Not Qualified
RAM(字数):114子类别:Timer or RTC
最大压摆率:15 mA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:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.8 mm
端子位置:QUAD最短时间:SECONDS
易失性:YESuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

DS12885T 数据手册

 浏览型号DS12885T的Datasheet PDF文件第2页浏览型号DS12885T的Datasheet PDF文件第3页浏览型号DS12885T的Datasheet PDF文件第4页 
DS12885/DS12885Q/DS12885T  
Real-Time Clock  
www.maxim-ic.com  
FEATURES  
§ Drop-in replacement for IBM AT computer  
clock/calendar  
PIN ASSIGNMENT (Top View)  
§ Pin configuration closely matches  
MC146818B and DS1285  
§ Counts seconds, minutes, hours, days, day of  
the week, date, month, and year with leap-  
year compensation valid up to 2100  
§ Binary or BCD representation of time,  
calendar, and alarm  
§ 12-hour or 24-hour clock with AM and PM in  
12-hour mode  
§ Daylight Savings Time option  
§ Selectable between Motorola and Intel bus  
timing  
§ Multiplex bus for pin efficiency  
§ Interfaced with software as 128 RAM  
locations  
DS12885Q  
28 PLCC  
§ 14 bytes of clock and control registers  
§ 114 bytes of general purpose RAM  
§ Programmable square-wave output signal  
bus-compatible interrupt signals (IRQ )  
§ Three interrupts are separately software-  
maskable and testable  
§ Time-of-day alarm once/second to once/day  
§ Periodic rates from 122ms to 500ms  
§ End-of-clock update cycle  
§ Optional 28-pin PLCC surface mount package  
or 32-pin TQFP  
DS12885T  
32 TQFP  
§ Optional industrial temperature range  
available  
§ Underwriters Laboratory (UL) recognized  
Package Dimension Information  
http://www.maxim-ic.com/TechSupport/DallasPackInfo.htm  
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, click here: http://www.maxim-ic.com/errata.  
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072902  

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