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DS1243Y-200 PDF预览

DS1243Y-200

更新时间: 2024-11-14 20:09:07
品牌 Logo 应用领域
达拉斯 - DALLAS 双倍数据速率光电二极管外围集成电路
页数 文件大小 规格书
12页 88K
描述
Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP28,

DS1243Y-200 技术参数

是否Rohs认证: 不符合生命周期:Transferred
Reach Compliance Code:unknown风险等级:5.74
外部数据总线宽度:8信息访问方法:PARALLEL, DIRECT ADDRESS
中断能力:NJESD-30 代码:R-PDIP-T28
JESD-609代码:e0端子数量:28
计时器数量: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:DIP封装等效代码:DIP28,.6
封装形状:RECTANGULAR封装形式:IN-LINE
认证状态:Not Qualified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:NO
技术:CMOS温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
最短时间:1/100 SECOND易失性:NO
uPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCKBase Number Matches:1

DS1243Y-200 数据手册

 浏览型号DS1243Y-200的Datasheet PDF文件第2页浏览型号DS1243Y-200的Datasheet PDF文件第3页浏览型号DS1243Y-200的Datasheet PDF文件第4页浏览型号DS1243Y-200的Datasheet PDF文件第5页浏览型号DS1243Y-200的Datasheet PDF文件第6页浏览型号DS1243Y-200的Datasheet PDF文件第7页 
DS1243Y  
DS1243Y  
64K NV SRAM with Phantom Clock  
FEATURES  
PIN ASSIGNMENT  
Realtimeclockkeepstrackofhundredthsofseconds,  
seconds, minutes, hours, days, date of the month,  
months, and years  
RST  
A12  
A7  
1
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
V
CC  
2
WE  
NC  
8K x 8 NV SRAM directly replaces volatile static RAM  
or EEPROM  
3
A6  
4
A8  
A5  
5
A9  
Embedded lithium energy cell maintains calendar op-  
eration and retains RAM data  
A4  
6
A11  
OE  
A3  
7
Watch function is transparent to RAM operation  
A2  
8
A10  
CE  
Monthandyeardeterminethenumberofdaysineach  
month; valid up to 2100  
A1  
9
A0  
10  
11  
12  
13  
14  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
DQ0  
DQ1  
DQ2  
GND  
Lithium energy source is electrically disconnected to  
retainfreshness until power is applied for the firsttime  
Standard 28–pin JEDEC pinout  
Full ±10% operating range  
28–PIN ENCAPSULATED PACKAGE  
720 MIL EXTENDED  
Operating temperature range 0°C to 70°C  
Accuracy is better than ±1 minute/month @ 25°C  
PIN DESCRIPTION  
Over 10 years of data retention in the absence of  
A –A  
CE  
GND  
Address Inputs  
Chip Enable  
Ground  
Data In/Data Out  
Power (+5V)  
Write Enable  
Output Enable  
No Connect  
Reset  
o
12  
power  
Available in 120, 150 and 200 ns access time  
ORDERING INFORMATION  
DS1243Y–XXX  
DQ –DQ  
0
7
V
CC  
WE  
OE  
NC  
–120  
–150  
120 ns access  
150 ns access  
200 ns access  
RST  
DS1243Y  
DESCRIPTION  
The DS1243Y 64K NV SRAM with Phantom Clock is a  
fully static nonvolatile RAM (organized as 8192 words  
by 8 bits) with a built–in real time clock. The DS1243Y  
has a self–contained lithium energy source and control  
The Phantom Clock provides timekeeping information  
including hundredths of seconds, seconds, minutes,  
hours, day, date, month, andyearinformation. Thedate  
at the end of the month is automatically adjusted for  
months with less than 31 days, including correction for  
leap years. The Phantom Clock operates in either  
24–hour or 12–hour format with an AM/PM indicator.  
circuitry which constantly monitors V for an out–of–  
CC  
tolerance condition. When such a condition occurs, the  
lithium energy source is automatically switched on and  
write protection is unconditionally enabled to prevent  
corrupted data in both the memory and real time clock.  
022798 1/12  

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