參數(shù)資料
型號: DS1742W-120
廠商: Maxim Integrated Products
文件頁數(shù): 1/17頁
文件大?。?/td> 0K
描述: IC RTC RAM Y2K 3.3V 120NS 24EDIP
標(biāo)準(zhǔn)包裝: 14
類型: 時鐘/日歷
特點(diǎn): 閏年,NVSRAM,Y2K
存儲容量: 2KB
時間格式: HH:MM:SS(24 小時)
數(shù)據(jù)格式: YY-MM-DD-dd
接口: 并聯(lián)
電源電壓: 2.97 V ~ 3.63 V
工作溫度: 0°C ~ 70°C
安裝類型: 通孔
封裝/外殼: 24-DIP 模塊(0.600",15.24mm)
供應(yīng)商設(shè)備封裝: 24-EDIP
包裝: 管件
其它名稱: DS1742W120
1 of 17
19-6715; Rev 6/13
FEATURES
Integrated NV SRAM, Real-Time Clock,
Crystal, Power-Fail Control Circuit and
Lithium Energy Source
Clock Registers are Accessed Identically to
the Static RAM; These Registers are
Resident in the Eight Top RAM Locations
Century Byte Register
Totally Nonvolatile with Over 10 Years of
Operation in the Absence of Power
BCD Coded Century, Year, Month, Date,
Day, Hours, Minutes, and Seconds with
Automatic Leap Year Compensation Valid
Up to the year 2100
Battery Voltage Level Indicator Flag
Power-Fail Write Protection Allows for ±10%
VCC Power Supply Tolerance
Lithium Energy Source is Electrically
Disconnected to Retain Freshness until
Power is Applied for the First Time
Standard JEDEC Bytewide 2k x 8 Static
RAM Pinout
Quartz Accuracy ±1 Minute a Month at
+25°C, Factory Calibrated
Underwriters Laboratories (UL) Recognized
PIN CONFIGURATION
ORDERING INFORMATION
PART
VOLTAGE (V)
TEMP RANGE
PIN-PACKAGE
TOP MARK**
DS1742-85+
5.0
0°C to +70°C
24 EDIP (0.740a)
DS1742-85+
DS1742-100+
5.0
0°C to +70°C
24 EDIP (0.740a)
DS1742-100+
DS1742-100IND+
5.0
-40°C to +85°C
24 EDIP (0.740a)
DS1742-100IND+
DS1742W-120+
3.3
0°C to +70°C
24 EDIP (0.740a)
DS1742W-120+
DS1742W-150+
3.3
0°C to +70°C
24 EDIP (0.740a)
DS1742W-150+
+Denotes a lead(Pb)-free/RoHS-compliant device.
**The top mark will include a “+” on lead(Pb)-free devices.
VCC
A8
A9
WE
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
1
2
3
4
5
6
7
8
9
10
11
12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
24
23
22
21
20
19
18
17
16
15
14
13
DS1742
ENCAPSULATED DIP
TOP VIEW
DS1742
Y2KC Nonvolatile Timekeeping RAM
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1742W-120+ 功能描述:實(shí)時時鐘 Timekeeping NV RAM RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1742W-150 功能描述:實(shí)時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1742W-150+ 功能描述:實(shí)時時鐘 Timekeeping NV RAM RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
DS1743 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Y2K-Compliant, Nonvolatile Timekeeping
DS1743-100 功能描述:實(shí)時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube