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DS1747 PDF预览

DS1747

更新时间: 2024-11-22 23:16:31
品牌 Logo 应用领域
达拉斯 - DALLAS 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
18页 340K
描述
Y2K-Compliant, Nonvolatile Timekeeping RAMs

DS1747 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:PLASTIC, MODULE, DIP-32Reach Compliance Code:unknown
风险等级:5.72Is 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-P32JESD-609代码:e0
端子数量:32最高工作温度:70 °C
最低工作温度:封装主体材料:UNSPECIFIED
封装代码:DIP封装等效代码:DIP32,.6
封装形状:RECTANGULAR封装形式:MICROELECTRONIC ASSEMBLY
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:NO技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:PIN/PEG端子节距:2.54 mm
端子位置:DUAL最短时间:SECONDS
易失性:NOuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

DS1747 数据手册

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DS1747/DS1747P  
Y2K-Compliant, Nonvolatile Timekeeping RAMs  
www.maxim-ic.com  
FEATURES  
PIN CONFIGURATIONS  
CꢀIntegrated 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  
CꢀClock Registers are Accessed Identically to  
the Static RAM. These Registers are Resident  
in the Eight Top RAM Locations.  
A16  
A14  
A12  
A7  
Dallas  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
Semiconductor 30  
DS1747  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
A6  
CꢀCentury Byte Register (Y2K Compliant)  
A5  
A9  
CꢀTotally Nonvolatile with Over 10 Years of  
A11  
OE  
A10  
CE  
A4  
Operation in the Absence of Power  
A3  
A2  
CꢀBCD-Coded Century, Year, Month, Date,  
Day, Hours, Minutes, and Seconds with  
Automatic Leap-Year Compensation Valid  
Up to the Year 2100  
A1  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
A0  
DQ0  
DQ1  
DQ2  
GND  
CꢀBattery Voltage-Level Indicator Flag  
CꢀPower-Fail Write Protection Allows for ±10%  
VCC Power-Supply Tolerance  
Encapsulated DIP  
(512k x 8)  
CꢀLithium Energy Source is Electrically  
Disconnected to Retain Freshness Until  
Power is Applied for the First Time  
N.C.  
A15  
A16  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
A18  
A17  
A14  
1
2
3
CꢀDIP Module Only:  
Dallas  
Semiconductor  
DS1747P  
Standard JEDEC Byte-Wide 512k x 8 Static  
RAM Pinout  
A13  
A12  
A11  
A10  
A9  
4
5
6
7
8
9
RST  
VCC  
WE  
OE  
CE  
CꢀPowerCap Module Board Only:  
A8  
DQ7  
Surface-Mountable Package for Direct  
Connection to PowerCap Containing  
Battery and Crystal  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
10  
11  
12  
13  
14  
15  
16  
17  
DQ6  
DQ5  
DQ4  
DQ3  
DQ2  
DQ1  
DQ0  
GND  
Replaceable Battery (PowerCap)  
Power-On Reset Output  
VBAT  
X1  
GND  
X2  
Pin-for-Pin Compatible with Other Densities  
of DS174xP Timekeeping RAM  
CꢀAlso Available in Industrial Temperature  
Range: -40°C to +85°C  
PowerCap Module Board  
(Uses DS9034PCX PowerCap)  
PowerCap is a registered trademark of Dallas Semiconductor.  
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.  
1 of 18  
REV: 011204  

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