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參數(shù)資料
| 型號： | DS17885-3 |
| 英文描述： | 3V/5V Real-Time Clock |
| 中文描述： | 3V/5V實時時鐘 |
| 文件頁數(shù)： | 34/38頁 |
| 文件大?。?/td> | 410K |
| 代理商： | DS17885-3 |
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DS17885/DS17887
34 of 38
BURST MODE TIMING WAVEFORM
NOTES:
1)
Typical values are at +25°C and nominal supplies.
2)
Outputs are open.
3)
Write-protection trip point occurs during power-fail prior to switchover from V
CC
to V
BAT
.
4)
Applies to the AD0 to AD7 pins, and the SQW pin when each is in a high-impedance state.
5)
The IRQ and PWR pins are open-drain.
6)
Measured with a load of 50pF + 1 TTL gate.
7)
Wake-up kickstart timeout generated only when the oscillator is enabled and the countdown chain is
not reset.
8)
V
SW
is determined by the larger of V
BAT
and V
BAUX
.
9)
The DS17887 keeps time to an accuracy of ±1 minute per month during data retention time for the
period of t
DR
.
10)
t
DR
is the amount of time that the internal battery can power the internal oscillator and internal
registers of the DS17887.
11)
I
BAT1
and I
BAT2
are measured at V
BAT
= 3.5V.
12)
RTC 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 |
|---|---|
| DS17885E-3 | 3V/5V Real-Time Clock |
| DS17885E-5 | 3V/5V Real-Time Clock |
| DS17886 | 3V/5V Real-Time Clock |
| DS17887-5 | Real-Time Clock |
| DS1801EN | Interface IC |
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(fēng)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(fēng)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(fēng)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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