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DS1744P-70IND PDF预览

DS1744P-70IND

更新时间: 2024-11-23 07:16:51
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双倍数据速率
页数 文件大小 规格书
16页 552K
描述
Y2K-Compliant, Nonvolatile Timekeeping RAMs

DS1744P-70IND 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:DMA包装说明:, MODULE,34LEAD,1.0
针数:34Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.12Is 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, DIRECT ADDRESS中断能力:N
JESD-30 代码:R-XDMA-U34JESD-609代码:e0
端子数量:34计时器数量:
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:UNSPECIFIED封装等效代码:MODULE,34LEAD,1.0
封装形状:RECTANGULAR封装形式:MICROELECTRONIC ASSEMBLY
峰值回流温度(摄氏度):240电源:5 V
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:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:J INVERTED
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:NO
uPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCKBase Number Matches:1

DS1744P-70IND 数据手册

 浏览型号DS1744P-70IND的Datasheet PDF文件第2页浏览型号DS1744P-70IND的Datasheet PDF文件第3页浏览型号DS1744P-70IND的Datasheet PDF文件第4页浏览型号DS1744P-70IND的Datasheet PDF文件第5页浏览型号DS1744P-70IND的Datasheet PDF文件第6页浏览型号DS1744P-70IND的Datasheet PDF文件第7页 
19-5502; Rev 3/12  
DS1744/DS1744P  
Y2K-Compliant, Nonvolatile Timekeeping RAMs  
FEATURES  
PIN CONFIGURATIONS  
. Integrated NV SRAM, Real-Time Clock,  
Crystal, Power-Fail Control Circuit, and  
Lithium Energy Source  
. Clock Registers are Accessed Identically to  
the Static RAM. These Registers are Resident  
in the Eight Top RAM Locations.  
. Century Byte Register (i.e., Y2K Compliant)  
. Totally Nonvolatile with Over 10 Years of  
Operation in the Absence of Power  
. BCD-Coded Century, Year, Month, Date,  
Day, Hours, Minutes, and Seconds with  
Automatic Leap-Year Compensation Valid  
Up to the Year 2100  
TOP VIEW  
1
2
3
4
5
6
7
8
28 VCC  
A14  
A12  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
DS1744  
27  
WE  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
A13  
A8  
A9  
A11  
OE  
A10  
CE  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
9
10  
11  
12  
13  
14  
A0  
DQ0  
DQ1  
DQ2  
GND  
. Battery Voltage-Level Indicator Flag  
. Power-Fail Write Protection Allows for ±10%  
EDIP  
VCC Power-Supply Tolerance  
. Lithium Energy Source is Electrically  
Disconnected to Retain Freshness Until  
Power is Applied for the First Time  
. DIP Module Only  
Standard JEDEC Byte-Wide 32k x 8 Static  
RAM Pinout  
. PowerCap Module Board Only  
Surface-Mountable Package for Direct  
Connection to PowerCap Containing  
Battery and Crystal  
Replaceable Battery (PowerCap)  
Power-On Reset Output  
Pin-for-Pin Compatible with Other Densities  
of DS174xP Timekeeping RAM  
. Also Available in Industrial Temperature  
Range: -40°C to +85°C  
N.C.  
N.C.  
A14  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
N.C.  
N.C.  
N.C.  
RST  
VCC  
1
2
DS1744P  
3
A13  
A12  
A11  
A10  
A9  
4
5
6
WE  
7
8
9
OE  
CE  
A8  
DQ7  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
10  
11  
12  
13  
14  
15  
16  
17  
DQ6  
DQ5  
DQ4  
DQ3  
DQ2  
DQ1  
DQ0  
GND  
24  
23  
22  
21  
20  
19  
VBAT  
X2  
GND  
X1  
18  
PowerCap MODULE BOARD  
(Uses DS9034PCX+ or DS9034I-PCX+ PowerCap)  
. UL Recognized  
1 of 16  

DS1744P-70IND 替代型号

型号 品牌 替代类型 描述 数据表
DS1747P-70+ MAXIM

完全替代

Y2K-Compliant, Nonvolatile Timekeeping RAMs
DS1747P-70IND+ MAXIM

完全替代

Y2K-Compliant, Nonvolatile Timekeeping RAMs
DS1744P-70IND+ MAXIM

完全替代

Y2K-Compliant, Nonvolatile Timekeeping RAMs

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Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, LEAD FREE, POWERCAP MODULE-34