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參數(shù)資料
| 型號： | DS1685Q-3 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 10/34頁 |
| 文件大?。?/td> | 455K |
| 代理商： | DS1685Q-3 |
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DS1685/DS1687 3V/5V Real-Time Clocks
18 of 34
Figure 4. Update-Ended And Periodic-Interrupt Relationship
1 second
UIP
tBUC
EXTENDED FUNCTIONS
The extended functions provided by the DS1685/DS1687 that are new to the RAMified RTC family are accessed by
a software-controlled bank-switching scheme, as illustrated in Figure 5. In bank 0, the clock/calendar registers and
50 bytes of user RAM are in the same locations as for the DS1287. As a result, existing routines implemented
within BIOS, DOS, or application software packages can gain access to the DS1685/DS1687 clock registers with
no changes. Also in bank 0, an extra 64 bytes of RAM are provided at addresses just above the original locations
for a total of 114 directly addressable bytes of user RAM.
tPI = PERIODIC INTERRUPT TIME INTERNAL PER TABLE 3.
tBUC = DELAY BEFORE UPDATE CYCLE = 244
s.
UF
PF
tPI/2
t
PI
tPI/2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1685S-3 | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| DS1685E-5 | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
| DS1685QN-3 | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| DS1685QN-5 | 1 TIMER(S), REAL TIME CLOCK, PQCC28 |
| DS1685SN-5 | 1 TIMER(S), REAL TIME CLOCK, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1685Q-3/T&R | 功能描述:實(shí)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 |
| DS1685Q-3/TR | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Real-Time Clocks |
| DS1685Q-3_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3V/5V Real-Time Clocks |
| DS1685Q-3+ | 功能描述:實(shí)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 |
| DS1685Q-3+T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK MULTIPLEXED 242BYTE 28PLCC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC 3V 64-BIT Y2KC 28-PLCC 制造商:Maxim Integrated Products 功能描述:Real Time Clock 3V/5V RTC |
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