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參數(shù)資料
| 型號： | DS17487BN-5 |
| 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> | 427K |
| 代理商： | DS17487BN-5 |
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DS17485/DS17487
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 DS17487 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 DS17487.
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 |
|---|---|
| DS17487N-3 | 3V/5V Real-Time Clock |
| DS17487N-5 | 49.9 1% 1/4W 1206 |
| DS17486 | 3V/5V Real-Time Clock |
| DS17488 | 3V/5V Real-Time Clock |
| DS1775 | SOT23-5 Digital Thermometer and Thermostat |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS17487N-3 | 功能描述:IC RTC 3V 4K NV RAM 24-EDIP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 實時時鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)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(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件 |
| DS17487N-5 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clock |
| DS17488 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clock |
| DS1750Y-150 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:NVRAM (Battery Based) |
| DS1750Y-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) |
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