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參數(shù)資料
| 型號： | DS17885-3 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDIP24 |
| 封裝： | DIP-24 |
| 文件頁數(shù)： | 28/38頁 |
| 文件大?。?/td> | 407K |
| 代理商： | DS17885-3 |
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DS17885/DS17887
34 of 38
BURST MODE TIMING WAVEFORM
NOTES:
1.
All voltages are referenced to ground.
2.
Typical values are at 25°C and nominal supplies.
3.
Outputs are open.
4.
Write protection trip point occurs during power fail prior to switchover from VCC to VBAT.
5.
Applies to the AD0-AD7 pins, and the SQW pin when each is in a high impedance state.
6.
The IRQ and PWR pins are open drain.
7.
Measured with a load of 50 pF + 1 TTL gate.
8.
Wakeup kickstart timeout generated only when the oscillator is enabled and the countdown chain is
not reset.
9.
VSW is determined by the larger of VBAT and VBAUX.
10. The DS17887 will keep time to an accuracy of ±1 minute per month during data retention time for
the period of tDR.
11. tDR is the amount of time that the internal battery can power the internal oscillator and internal
registers of the DS17887.
12. IBAT1 and IBAT2 are measured at VBAT = 3.5V.
13. 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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS17885S-5 | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| DS17885E-5 | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| DS1821+ | DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 1Cel, RECTANGULAR, SURFACE MOUNT |
| DS1821S+ | DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 1Cel, RECTANGULAR, SURFACE MOUNT |
| DS1821S | DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 1Cel, RECTANGULAR, SURFACE MOUNT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS17885-3+ | 功能描述:實時時鐘 3V/5V RTC 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 |
| DS17885-5 | 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 |
| DS17885-5+ | 功能描述:實時時鐘 3V/5V RTC 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 |
| DS17885-DS17887 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clock |
| DS17885E3 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Real-Time Clocks |
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