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參數(shù)資料
| 型號： | DS17287N-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> | 411K |
| 代理商： | DS17287N-3 |
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DS17285/DS17287
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 DS17287 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 DS17287.
11)
I
BAT1
and I
BAT2
are measured at V
BAT
= 3.5V, with a 32.768kHz crystal attached to X1 and X2
(DS17285).
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 |
|---|---|
| DS17287N-5 | 3V/5V Real-Time Clock |
| DS17285-DS17287 | 3V/5V Real-Time Clock |
| DS17287 | 3V/5V Real-Time Clock |
| DS1731 | High-Precision Digital Thermometer and Thermostat |
| DS1731U | High-Precision Digital Thermometer and Thermostat |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS17287N-5 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clock |
| DS1730Y-150 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1730Y-150-IND | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1730Y-200 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1730Y-200-IND | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
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