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參數(shù)資料
| 型號： | DS1543 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 64K NV Timekeeping RAM(64K非易失性計時 RAM) |
| 中文描述： | 計時64K的非易失存儲器（64K的非易失性計時的RAM） |
| 文件頁數(shù)： | 15/19頁 |
| 文件大小： | 165K |
| 代理商： | DS1543 |
DS1543
070198 15/19
AC TEST CONDITIONS
Output Load:
Input Pulse Levels:
Timing Measurement Reference Levels:
Input: 1.5V
Output: 1.5V
Input Pulse Rise and Fall Times:
100 pF + 1TTL Gate
0.0 to 3.0 Volts
5 ns
NOTES:
1. Voltage referenced to ground.
2. Typical values are at 25
°
C and nominal supplies.
3. Outputs are open.
4. Battery switch over occurs at the lower of either the battery voltage or V
PF
.
5. The IRQ/FT and RST outputs are open drain.
6. Data retention time is at 25
°
C.
7. Each DS1543 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 tech-
niques 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.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1543-100 | 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 |
| DS1543-100+ | 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 |
| DS1543-70 | 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 |
| DS1543-85 | 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 |
| DS1543-85+ | 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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