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參數(shù)資料
| 型號： | DS1743P-70 |
| 英文描述： | Y2KC Nonvolatile Timekeeping RAM |
| 中文描述： | Y2KC非易失內(nèi)存時鐘 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大小： | 247K |
| 代理商： | DS1743P-70 |
DS1743/DS1743P
13 of 17
AC TEST CONDITIONS
Output Load:
Input Pulse Levels:
Timing Measurement Reference Levels:
Input: 1.5V
Output: 1.5V
Input Pulse Rise and Fall Times: 5 ns
100 pF + 1TTL Gate
0.0 to 3.0V
NOTES:
1.
Voltages are referenced to ground.
2.
Typical values are at 25
°
C and nominal supplies.
3.
Outputs are open.
4.
Battery switchover occurs at the lower of either the battery terminal voltage or V
PF
.
5.
The CE2 control signal functions exactly the same as the
CE
signal except that the logic levels for
active and inactive levels are opposite.
6.
Data retention time is at 25
°
C.
7.
Each DS1743 has a built-in switch that disconnects the lithium source until V
CC
is first applied by the
user. The expected t
DR
is defined for DIP modules as a cumulative time in the absence of V
CC
starting
from the time power is first applied by the user.
8.
Real-Time Clock Modules (DIP) can be successfully processed through conventional wave-soldering
techniques as long as temperatures as long as temperature exposure to the lithium energy source
contained within does not exceed +85
°
C. Post-solder cleaning with water washing techniques is
acceptable, provided that ultrasonic vibration is not used.
In addition, for the PowerCap:
a.
Dallas Semiconductor recommends that PowerCap Module bases experience one pass through
solder reflow oriented with the label side up (“l(fā)ive - bug”).
b.
Hand Soldering and touch-up: Do not touch or apply the soldering iron to leads for more than
3 (three) seconds. To solder, apply flux to the pad, heat the lead frame pad and apply solder. To
remove the part, apply flux, heat the lead frame pad until the solder reflow and use a solder wick to
remove solder.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1743 | Y2KC Nonvolatile Timekeeping RAM |
| DS1743P | Y2KC Nonvolatile Timekeeping RAM |
| DS1744 | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1744-70 | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1744-70IND | Y2K-Compliant, Nonvolatile Timekeeping RAMs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1743P-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 |
| DS1743P-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 |
| DS1743P-85IND+ | 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 |
| DS1743P-C01+ | 制造商:Maxim Integrated Products 功能描述:Y2KC RAM PCAP 8KX8 100NS ROCKWELL - Trays |
| DS1743W-120 | 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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