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參數(shù)資料
| 型號： | DS1643-70 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, DMA28 |
| 封裝： | 0.700 INCH, PLASTIC, MODULE, DIP-28 |
| 文件頁數(shù)： | 2/14頁 |
| 文件大?。?/td> | 180K |
| 代理商： | DS1643-70 |
DS1643/DS1643P
10 of 14
AC TEST CONDITIONS
Output Load:
100 pF + 1TTL Gate
Input Pulse Levels:
0.0 to 3.0 Volts
Timing Measurement Reference Levels:
Input: 1.5V
Output: 1.5V
Input Pulse Rise and Fall Times: 5 ns
NOTES:
1. Voltages are referenced to ground.
2. Typical values are at 25
°C and nominal supplies.
3. Outputs are open.
4. The CE2 control signal functions exactly the same as the CE signal except that the logic levels for
active and inactive levels are opposite.
5. Data retention time is at 25
°C.
6. Each DS1643 has a built-in switch that disconnects the lithium source until VCC is first applied by the
user. The expected tDR is defined for DIP modules as a cumulative time in the absence of VCC starting
from the time power is first applied by the user.
7. 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
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 |
|---|---|
| DS1644-120 | 0 TIMER(S), REAL TIME CLOCK, DMA28 |
| DS1644P-120 | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
| DS1644P | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
| DS1644 | 0 TIMER(S), REAL TIME CLOCK, DMA28 |
| DS1646-120 | 0 TIMER(S), REAL TIME CLOCK, DMA32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1643-70+ | 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 |
| DS1643-85 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Nonvolatile Timekeeping RAMs |
| DS1643-85+ | 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1643AL-12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Real-Time Clock |
| DS1643AL-120 | 功能描述:IC RAM TIMEKEEP NV 120NS 34-LPM RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 實時時鐘 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:時鐘/日歷 特點:警報器，閏年，SRAM 存儲容量:- 時間格式:HH:MM:SS（12/24 小時） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應商設備封裝:8-TDFN EP 包裝:管件 |
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