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DS14285Q+ PDF预览

DS14285Q+

更新时间: 2024-02-24 07:57:55
品牌 Logo 应用领域
达拉斯 - DALLAS 时钟
页数 文件大小 规格书
26页 481K
描述
Real-Time Clock with NV RAM

DS14285Q+ 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete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:8473.30.11.80风险等级:5.65
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:15.415 mm湿度敏感等级:1
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峰值回流温度(摄氏度):260
电源:5 V认证状态:Not Qualified
座面最大高度:2.68 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: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:7.51 mm
uPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCKBase Number Matches:1

DS14285Q+ 数据手册

 浏览型号DS14285Q+的Datasheet PDF文件第2页浏览型号DS14285Q+的Datasheet PDF文件第3页浏览型号DS14285Q+的Datasheet PDF文件第4页浏览型号DS14285Q+的Datasheet PDF文件第5页浏览型号DS14285Q+的Datasheet PDF文件第6页浏览型号DS14285Q+的Datasheet PDF文件第7页 
DS14285/DS14287  
Real-Time Clock with NV RAM  
Control Control  
www.maxim-ic.com  
FEATURES  
PIN CONFIGURATIONS  
Direct Replacement for IBM AT  
Computer Clock/Calendar  
TOP VIEW  
Functionally Compatible with the  
DS1285/DS1287  
VCCO  
X1  
X2  
V
CC  
1
24  
23  
22  
21  
20  
19  
18  
17  
SQW  
2
3
4
5
6
7
8
CEO  
Available as Chip (DS14285, DS14285S, or  
DS14285Q) or Stand-Alone Module with  
Embedded Lithium Battery and Crystal  
(DS14287)  
AD0  
AD1  
AD2  
CEI  
VBAT  
IRQ  
RESET  
DS  
AD3  
AD4  
Automatic Backup Supply and Write  
Protection to Make External SRAM  
Nonvolatile  
AD5  
AD6  
AD7  
GND  
R/W  
AS  
9
16  
15  
14  
13  
10  
11  
12  
GND  
CS  
Counts Seconds, Minutes, Hours, Days,  
Day of the Week, Date, Month, and Year  
with Leap Year Compensation Valid Up  
to 2100  
DIP/SO  
Binary or BCD Representation of Time,  
Calendar, and Alarm  
4
3
2
1
28 27 26  
25  
12- or 24-Hour Clock with AM and PM in  
12-Hour Mode  
5
AD0  
CEI  
6
24  
23  
AD1  
AD2  
VBAT  
IRQ  
7
DS14285  
Daylight Saving Time Option  
Multiplex Bus for Pin Efficiency  
Interfaced with Software as 128 RAM  
Locations  
8
22  
21  
20  
19  
AD3  
AD4  
AD5  
N.C.  
RESET  
DS  
9
10  
11  
GND  
R/W  
12 13 14 15 16 17 18  
14 Bytes of Clock and Control Registers  
114 Bytes of General Purpose RAM  
Programmable Square-Wave Output  
Signal  
PLCC  
Bus-Compatible Interrupt Signals (IRQ)  
Three Interrupts are Separately Software-  
Maskable and Testable  
VCC  
VCCO  
1
24  
23  
22  
21  
20  
19  
N.C.  
N.C.  
AD0  
AD1  
AD2  
SQW  
CEO  
CEI  
2
3
4
5
6
DS14287  
Time-of-Day Alarm Once/Second to  
Once/Day  
N.C.  
IRQ  
RESET  
DS  
N.C.  
R/W  
AS  
Periodic Rates from 122µs to 500ms  
End of Clock Update Cycle  
AD3  
AD4  
7
8
18  
17  
AD5  
AD6  
AD7  
9
16  
15  
14  
13  
Optional Industrial Temperature Version  
Available: DS14285 DIP, SO, and PLCC  
10  
11  
12  
GND  
CS  
Encapsulated Package  
1 of 26  
REV: 112105  

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