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參數資料
| 型號： | DS1742-70 |
| 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： | 1/15頁 |
| 文件大小： | 727K |
| 代理商： | DS1742-70 |
1 of 15
REV: 022207
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
UL Recognized
PIN CONFIGURATION
ORDERING INFORMATION
PART
VOLTAGE (V)
TEMP RANGE
PIN-PACKAGE
TOP MARK**
DS1742-70
5.0
0°C to +70°C
24 EDIP (0.740a)
DS1742-070
DS1742-70+
5.0
0°C to +70°C
24 EDIP (0.740a)
DS1742-070+
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-free/RoHS-compliant device.
*DS9034-PCX, DS9034I-PCX, DS9034-PCX+ required (must be ordered separately).
** The top mark will include a “+” on lead-free devices.
DS1742
Y2KC Nonvolatile Timekeeping
RAM
www.maxim-ic.com
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
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| DS9034PCX | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| DS1742-85 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Y2KC Nonvolatile Timekeeping RAMwww. |
| DS1742-85+ | 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 |
| DS1742W-120 | 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 |
| DS1742W-120+ | 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 |
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