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參數(shù)資料
| 型號： | DS1642-70 |
| 英文描述： | Nonvolatile Timekeeping RAM |
| 中文描述： | 非易失性內(nèi)存時鐘 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大小： | 138K |
| 代理商： | DS1642-70 |
DS1642
10 of 11
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 3.0 Volts
NOTES:
1.
Voltages are referenced to ground.
2.
Typical values are at 25
°
C and nominal supplies.
3.
Outputs are open.
4.
Data retention time is at 25
°
C.
5.
Each DS1642 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 as a cumulative time in the absence of V
CC
starting from the time
power is first applied by the user.
6.
Real Time Clock Modules can be successfully processed through conventional wave–soldering
techniques 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 to prevent damage to the crystal.
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| DS1644L-150 | Nonvolatile Timekeeping RAM |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1642-70+ | 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1642-85 | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK PARALLEL 2KBYTE 24PIN EDIP - Bulk |
| DS1642-85+ | 功能描述:實時時鐘 NV Timekeeping 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS-1642ZJ | 制造商:Hikvision USA 功能描述:6" Outdoor Speed Dome Bracket, White, Ceiling Mount Bracket |
| DS1643 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Nonvolatile Timekeeping RAMs |
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