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DS1747P PDF预览

DS1747P

更新时间: 2024-02-21 18:55:44
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 213K
描述
Y2K-Compliant, Nonvolatile Timekeeping RAMs

DS1747P 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:DMA
包装说明:, MODULE,34LEAD,1.0针数:34
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.28
其他特性:A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED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:NJESD-30 代码:R-XDMA-U34
JESD-609代码:e0端子数量:34
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: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):NOT SPECIFIED
电源:3.3 V认证状态:Not Qualified
子类别:Timer or RTC最大供电电压:3.63 V
最小供电电压:2.97 V标称供电电压:3.3 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL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:NOuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

DS1747P 数据手册

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19-5504; Rev 9/10  
DS1747/DS1747P  
Y2K-Compliant, Nonvolatile Timekeeping RAMs  
www.maxim-ic.com  
FEATURES  
PIN CONFIGURATIONS  
. Integrated NV SRAM, Real-Time Clock  
(RTC), Crystal, Power-Fail Control  
Circuit, and Lithium Energy Source  
TOP VIEW  
A18  
VCC  
A15  
A17  
WE  
A13  
A8  
1
32  
31  
A16  
A14  
A12  
A7  
Maxim  
2
3
4
. Clock Registers are Accessed Identically to  
the Static RAM. These Registers are  
DS1747  
30  
29  
Resident in the Eight Top RAM Locations  
5
6
28  
27  
A6  
A5  
. Century Byte Register (Y2K Compliant)  
A9  
A11  
7
8
26  
25  
A4  
A3  
. Totally Nonvolatile with Over 10 Years of  
OE  
A10  
CE  
9
10  
24  
23  
Operation in the Absence of Power  
A2  
A1  
11  
12  
22  
21  
. BCD-Coded Century, Year, Month, Date,  
Day, Hours, Minutes, and Seconds with  
Automatic Leap Year Compensation Valid  
Up to the Year 2100  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
A0  
DQ0  
DQ1  
DQ2  
GND  
13  
14  
15  
16  
20  
19  
18  
17  
. Battery Voltage-Level Indicator Flag  
. Power-Fail Write Protection Allows for  
Encapsulated DIP  
(512k x 8)  
±10% VCC Power-Supply Tolerance  
. Lithium Energy Source is Electrically  
Disconnected to Retain Freshness Until  
Power is Applied for the First Time  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
A18  
A17  
A14  
N.C.  
A15  
A16  
RST  
VCC  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
Maxim  
DS1747P  
. DIP Module Only:  
A13  
A12  
A11  
A10  
A9  
Standard JEDEC Byte-Wide 512k x 8 Static  
RAM Pinout  
WE  
OE  
CE  
A8  
DQ7  
. PowerCap Module Board Only:  
Surface-Mountable Package for Direct  
Connection to PowerCap Containing  
Battery and Crystal  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
DQ6  
DQ5  
DQ4  
DQ3  
DQ2  
DQ1  
DQ0  
GND  
VBAT  
X1  
GND  
X2  
Replaceable Battery (PowerCap)  
Power-On Reset Output  
Pin-for-Pin Compatible with Other Densities  
of DS174xP Timekeeping RAM  
PowerCap Module Board  
(Uses DS9034PCX PowerCap)  
. Also Available in Industrial Temperature  
Range: -40°C to +85°C  
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: www.maxim-ic.com/errata.  
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