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參數(shù)資料
| 型號(hào)： | DS17887-5 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, DMA24 |
| 封裝： | PLASTIC, MODULE, DIP-24 |
| 文件頁數(shù)： | 28/38頁 |
| 文件大?。?/td> | 407K |
| 代理商： | DS17887-5 |
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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 |
|---|---|
| DS17885-3 | 1 TIMER(S), REAL TIME CLOCK, PDIP24 |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS17887-5 IND | 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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 |
| DS17887-5+ | 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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 |
| DS17887-5IND | 功能描述:IC RTC 5V 8K NV RAM 24-EDIP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)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(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 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 |
| DS17887-5IND+ | 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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 |
| DS17H531D | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:3-PHASE STEPPING SYSTEMS |
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