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DS1556W-120 PDF预览

DS1556W-120

更新时间: 2024-01-28 02:38:34
品牌 Logo 应用领域
达拉斯 - DALLAS 时钟
页数 文件大小 规格书
20页 483K
描述
1M, Nonvolatile, Y2K-Compliant Timekeeping RAM

DS1556W-120 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:MODULE包装说明:EDIP MODULE-32
针数:32Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8473.30.11.80
风险等级:5.14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:YJESD-30 代码:R-PDMA-P32
JESD-609代码:e0长度:43.053 mm
端子数量:32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:DIP封装等效代码:DIP32,.6
封装形状:RECTANGULAR封装形式:MICROELECTRONIC ASSEMBLY
峰值回流温度(摄氏度):240电源:3.3 V
认证状态:Not Qualified座面最大高度:10.922 mm
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:NO技术:CMOS
温度等级:INDUSTRIAL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
处于峰值回流温度下的最长时间:NOT SPECIFIED易失性:NO
宽度:15.24 mmuPs/uCs/外围集成电路类型:TIMER, REAL TIME CLOCK
Base Number Matches:1

DS1556W-120 数据手册

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DS1556  
1M, Nonvolatile, Y2K-Compliant  
Timekeeping RAM  
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  
RST  
A16  
A14  
A12  
A7  
VCC  
A15  
1
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
Dallas  
CꢀClock Registers are Accessed Identically to  
the Static RAM; These Registers Reside in  
the 16 Top RAM Locations  
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
Semiconductor  
DS1556  
IRQ/FT  
WE  
A13  
A8  
A6  
CꢀCentury Byte Register (i.e., Y2K Compliant)  
A5  
A9  
CꢀTotally Nonvolatile with Over 10 Years of  
A11  
A4  
A3  
OE  
A10  
CE  
Operation in the Absence of Power  
A2  
CꢀPrecision Power-On Reset  
A1  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
A0  
DQ0  
DQ1  
DQ2  
GND  
CꢀProgrammable Watchdog Timer and RTC  
Alarm  
CꢀBCD-Coded Year, Month, Date, Day, Hours,  
Minutes, and seconds with Automatic Leap-  
Year Compensation Valid Up to the Year  
2100  
Encapsulated DIP  
CꢀBattery Voltage-Level Indicator Flag  
CꢀPower-Fail Write Protection Allows for M10%  
N.C.  
N.C.  
A14  
34  
33  
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
IRQ/FT  
A15  
A16  
RST  
VCC  
1
2
3
V
CC Power-Supply Tolerance  
Dallas  
Semiconductor  
DS1556  
CꢀLithium Energy Source is Electrically  
Disconnected to Retain Freshness Until  
Power is Applied for the First Time  
A13  
A12  
A11  
A10  
A9  
4
5
6
7
8
9
WE  
OE  
CE  
A8  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
DQ2  
DQ1  
DQ0  
GND  
CꢀAlso Available in Industrial Temperature  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
10  
11  
12  
13  
14  
15  
16  
17  
Range: -40°C to +85°C  
X1  
GND VBAT  
X2  
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 20  
REV: 101804  

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