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FEATURES
Real-Time Clock Keeps Track of Hundredths
of Seconds, Seconds, Minutes, Hours, Days,
Date of the Month, Months, and Years
8K x 8 NV SRAM Directly Replaces
Volatile Static RAM or EEPROM
Embedded Lithium Energy Cell Maintains
Calendar Operation and Retains RAM Data
Watch Function is Transparent to RAM
Operation
Automatic Leap Year Compensation Valid
Up to 2100
Lithium Energy Source is Electrically
Disconnected to Retain Freshness Until
Power is Applied for the First Time
Standard 28-Pin JEDEC Pinout
Full ±10% Operating Range
Accuracy is Better than ±1 Minute/Month at
+25°C
Over 10 Years of Data Retention in the
Absence of Power
Available in 120ns Access Time
Underwriters Laboratories (UL) Recognized
PIN CONFIGURATION
ORDERING INFORMATION
PART
TEMP RANGE
PIN-PACKAGE
DS1243Y-120+
0°C to +70°C
28 EDIP (0.720a)
+ Denotes a lead(Pb)-free/RoHS-compliant package.
Encapsulated Package
(720-Mil Extended)
A7
A5
A3
A2
A1
A0
DQ0
DQ1
GND
DQ2
VCC
WE
N.C.
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ3
DQ4
1
2
3
4
5
6
7
8
9
10
11
12
14
13
28
27
26
25
24
23
22
21
20
19
18
17
15
16
A12
A6
A4
RST
DS1243Y
TOP VIEW
DS1243Y
64K NV SRAM with Phantom Clock
19-6076; Rev 11/11
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相关代理商/技术参数
DS1243Y120+ 制造商:Maxim Integrated Products 功能描述:
DS1243Y-120+ 功能描述:实时时钟 64k NV SRAM w/Phantom Clock RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube
DS1243Y-120+ 制造商:Maxim Integrated Products 功能描述:IC
DS1243Y-150 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:64K NV SRAM with Phantom Clock
DS1243Y4120 制造商:Maxim Integrated Products 功能描述:
DS-1243ZJ 制造商:Hikvision USA 功能描述:DOME CAMERA PENDANT MOUNT14.3IN X 7.3 X 7.2IN 制造商:HIKVISION 功能描述:DOME CAMERA PENDANT MOUNT 14.3IN X 7.3 X 7.2IN
DS1244 制造商:BB 制造商全称:BB 功能描述:Low-Power, 24-Bit ANALOG-TO-DIGITAL CONVERTER
DS1244P 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:256k NV SRAM with Phantom Clock