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參數資料
| 型號： | DS1742-100 |
| 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 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 272K |
| 代理商： | DS1742-100 |
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PDF資料 |
PDF描述 |
|---|---|
| DS1742W-120 | 0 TIMER(S), REAL TIME CLOCK, PDIP24 |
| 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 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1742-100+ | 功能描述:實時時鐘 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1742-100IND | 功能描述:實時時鐘 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1742-100IND+ | 功能描述:實時時鐘 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1742-70 | 功能描述:實時時鐘 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1742-70+ | 功能描述:實時時鐘 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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