參數(shù)資料
型號(hào)： DS1742W-120
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： Timer or RTC
英文描述： 0 TIMER(S), REAL TIME CLOCK, PDIP24
封裝： 0.740 INCH, ENCAPSULATED, DIP-24
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 272K
代理商： DS1742W-120
DS1742
Y2KC Nonvolatile Timekeeping
RAM
www.maxim-ic.com
FEATURES
PIN CONFIGURATION
Integrated NV SRAM, Real-Time Clock,
Crystal, Power-Fail Control Circuit and
Lithium Energy Source
1 of 16
REV: 102808
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
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
DS1742-85+
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
DS1742-100+
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
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-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
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.
UL is a registered trademark of Underwriters Laboratories, Inc.
VCC
A8
A9
WE
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
1
2
3
4
5
6
7
8
9
10
11
GND
12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
24
23
22
21
20
19
18
17
16
15
14
13
DS1742
TOP VIEW
ENCAPSULATED DIP
相關(guān)PDF資料
PDF描述
DS1742-70 0 TIMER(S), REAL TIME CLOCK, PDIP24
DS1742W-150 0 TIMER(S), REAL TIME CLOCK, DMA24
DS1743P-70 0 TIMER(S), REAL TIME CLOCK, DMA34
DS1743-70 0 TIMER(S), REAL TIME CLOCK, DMA28
DS1743W-120 0 TIMER(S), REAL TIME CLOCK, DMA28
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(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
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