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DS1244P

更新时间： 2024-11-13 22:54:35
品牌 Logo 应用领域
达拉斯 - DALLAS 静态存储器时钟
页数 文件大小 规格书
19页 286K
描述
256k NV SRAM with Phantom Clock

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中文翻译

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DS1244P 数据手册

 浏览型号DS1244P的Datasheet PDF文件第2页浏览型号DS1244P的Datasheet PDF文件第3页浏览型号DS1244P的Datasheet PDF文件第4页浏览型号DS1244P的Datasheet PDF文件第5页浏览型号DS1244P的Datasheet PDF文件第6页浏览型号DS1244P的Datasheet PDF文件第7页 
DS1244/DS1244P  
256k NV SRAM  
with Phantom Clock  
www.maxim-ic.com  
FEATURES  
PIN ASSIGNMENT (Top View)  
C Real-time clock (RTC) keeps track of  
hundredths of seconds, minutes, hours, days,  
date of the month, months, and years  
C 32k x 8 NV SRAM directly replaces volatile  
static RAM or EEPROM  
VCC  
1
28  
A14/RST  
27  
26  
25  
24  
23  
22  
21  
20  
19  
2
3
4
5
6
7
8
9
10  
WE  
A13  
A8  
A9  
A11  
OE  
A10  
CE  
DQ7  
A12  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
DQ0  
DQ1  
C Embedded lithium energy cell maintains  
calendar operation and retains RAM data  
C Watch function is transparent to RAM  
operation  
11  
12  
18  
17  
DQ6  
DQ5  
C Month and year determine the number of  
days in each month; valid up to 2100  
C Full 10% operating range  
13  
14  
16  
15  
DQ4  
DQ3  
DQ2  
GND  
C Operating temperature range: 0LC to +70LC  
C Over 10 years of data retention in the  
absence of power  
DS2144  
28-PDIP Module (740mil)  
C 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  
N.C.  
N.C.  
A14  
1
2
3
RST  
N.C.  
N.C.  
A13  
A12  
A11  
A10  
A9  
4
5
6
7
8
9
N.C.  
VCC  
C DIP module only  
C Standard 28-pin JEDEC pinout  
C PowerCap® module board only  
– Surface mountable package for direct  
connection to PowerCap containing  
battery and crystal  
WE  
OE  
CE  
A8  
DQ7  
DQ6  
DQ5  
DQ4  
DQ3  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
10  
11  
12  
13  
14  
15  
16  
17  
DQ2  
DQ1  
DQ0  
GND  
VBAT X2  
X1 GND  
– Replaceable battery (PowerCap)  
– Pin-for-pin compatible with DS1248P  
and DS1251P  
DS1244P  
34-Pin PowerCap Module  
(Uses DS9034PCX PowerCap)  
C Underwriters Laboratory (UL) recognized  
Package Dimension Information  
http://www.maxim-ic.com/TechSupport/DallasPackInfo.htm  
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: http://www.maxim-ic.com/errata.  
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与DS1244P相关器件

型号 品牌 获取价格 描述 数据表
DS1244P-100 MAXIM

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 		Real Time Clock, 0 Timer(s), CMOS, PDIP28, MODULE, DIP-28
DS1244P-70 MAXIM

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 		Real Time Clock, 0 Timer(s), CMOS, PDIP28, 0.740 INCH, EXTENDED MODULE, DIP-28
DS1244PP-100 MAXIM

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 		Real Time Clock, 0 Timer(s), CMOS, POWERCAP MODULE BOARD-34
DS1244PP-70 MAXIM

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 		Real Time Clock, 0 Timer(s), CMOS, POWERCAP MODULE-34
DS1244W-120 DALLAS

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 		256k NV SRAM with Phantom Clock
DS1244W-120 MAXIM

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 		Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP28, 0.740 INCH, ENCAPSULATED, DIP-28
DS1244W-120+ MAXIM

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 		Real Time Clock, Volatile, CMOS, PDIP28, 0.740 INCH, ROHS COMPLIANT, ENCAPSULATED, DIP-28
DS1244W-120IND DALLAS

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 		256k NV SRAM with Phantom Clock
DS1244W-120IND MAXIM

获取价格

 		Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, PDIP28, 0.740 INCH, ENCAPSULATED, DIP-28
DS1244W-120-IND DALLAS

获取价格

 		Real Time Clock, Non-Volatile, 0 Timer(s), CMOS, 0.740 INCH, PLASTIC, MODULE, DIP-28

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