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DS1215

更新时间： 2024-02-07 23:02:51
品牌 Logo 应用领域
达拉斯 - DALLAS 时钟
页数 文件大小 规格书
15页 115K
描述
Phantom Time Chip

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DS1215 技术参数

是否Rohs认证： 不符合生命周期：Active
Reach Compliance Code：not_compliant风险等级：5.85
信息访问方法：SERIAL, FIXED PROTOCOL中断能力：N
JESD-30 代码：R-PDSO-G16JESD-609代码：e0
端子数量：16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：SOP16,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
电源：5 V认证状态：Not Qualified
子类别：Timer or RTC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：1/100 SECOND
易失性：YESBase Number Matches：1

DS1215 数据手册

 浏览型号DS1215的Datasheet PDF文件第2页浏览型号DS1215的Datasheet PDF文件第3页浏览型号DS1215的Datasheet PDF文件第4页浏览型号DS1215的Datasheet PDF文件第5页浏览型号DS1215的Datasheet PDF文件第6页浏览型号DS1215的Datasheet PDF文件第7页 
DS1215  
DS1215  
Phantom Time Chip  
FEATURES  
PIN ASSIGNMENT  
• Keeps track of hundredths of seconds, seconds, min-  
utes, hours, days, date of the month, months, and  
years  
X1  
X2  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
V
V
CCI  
CCO  
WE  
BAT1  
GND  
D
BAT2  
RST  
• Adjusts for months with fewer than 31 days  
• Leap year automatically corrected up to 2100  
• No address space required  
OE  
CEI  
Q
CEO  
GND  
ROM/RAM  
• Provides nonvolatile controller functions for battery  
backup of RAM  
16–PIN DIP (300 MIL)  
• Supports redundant batteries for high–reliability  
X1  
X2  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
V
V
CCI  
applications  
CCO  
WE  
BAT2  
RST  
• Uses a 32.768 KHz watch crystal  
BAT1  
GND  
D
OE  
• Full ±10% operating range  
CEI  
Q
CEO  
• Operating temperature range 0°C to 70°C  
• Space-saving, 16–pin DIP package and SOIC  
GND  
ROM/RAM  
16–PIN SOIC (300 MIL)  
• Optionalindustrialtemperaturerange–40°Cto+85°C  
PIN DESCRIPTION  
(IND)  
X1, X2  
WE  
BAT1  
GND  
D
–
–
–
–
–
–
–
–
–
–
–
–
–
–
32.768 KHz Crystal Connections  
Write Enable  
Battery 1 Input  
Ground  
Data In  
Data Out  
ROM/RAM Select  
Chip Enable Out  
Chip Enable Input  
Output Enable  
Reset  
Battery 2 Input  
Switched Supply Output  
+5 VDC Input  
DESCRIPTION  
The DS1215 Phantom Time Chip is a combination of a  
CMOStimekeeperandanonvolatilememorycontroller.  
In the absence of power, an external battery maintains  
the timekeeping operation and provides power for a  
CMOS static RAM. The watch keeps track of hun-  
dredthsofseconds, seconds, minutes, hours, day,date,  
month, and year information. The last day of the month  
is automatically adjusted for months with less than 31  
days, includingcorrectionforleapyeareveryfouryears.  
The watch operates in one of two formats: a 12–hour  
mode with an AM/PM indicator or a 24–hour mode. The  
nonvolatile controller supplies all the necessary support  
circuitry to convert a CMOS RAM to a nonvolatile  
memory. The DS1215 can be interfaced with either  
RAM or ROM without leaving gaps in memory.  
Q
ROM/RAM  
CEO  
CEI  
OE  
RST  
BAT2  
V
V
CCO  
CCI  
NOTE: Both pins 5 and 8 must be grounded.  
ORDERING INFORMATION  
DS1215  
16–pin DIP  
DS1215S  
DS1215N  
DS1215SN  
16–pin SOIC  
16–pin DIP (IND)  
16–pin SOIC (IND)  
ECopyright 1997 by Dallas Semiconductor Corporation.  
All Rights Reserved. For important information regarding  
patents and other intellectual property rights, please refer to  
Dallas Semiconductor data books.  
032697 1/15  
1234567...15

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