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參數資料
| 型號： | DS17887-3 |
| 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： | 6/18頁 |
| 文件大小： | 343K |
| 代理商： | DS17887-3 |
MAX3816A
I2C 2-Wire Extender for DDC in DVI,
HDMI, and VGA Interfaces
14
______________________________________________________________________________________
MAX3816A External to Display, Switchable Series
and Parallel Mode Advantages (See Figure 7)
Long cable reach.
In parallel mode, the MAX3816A is very tolerant of
noncompliant DDC sources and sinks.
The MAX3816A can be turned off and bypassed if
another MAX3816A or speed-up device is being
used on the same DDC.
In parallel mode, the MAX3816A can be used simul-
taneously with other I2C speed-up devices.
The MAX3816A acts as a buffer between source and
display. Hence, source reflections are isolated to the
source side of the MAX3816A, protecting display
circuits from possible double clocking due to stair-
step waveforms caused by very long cables with
reflections.
In series mode, the MAX3816A can be turned off
(DRVR_EN asserted low) to isolate between source
and display buses. The display bus can then oper-
ate independently of source-cable loading or mal-
functions.
Consideration
Use a good quality CMOS switch with low resistance
(< 20
Ω) and over/undervoltage tolerance.
Figure 7. External to Display, Switchable Series and Parallel Mode
MAX3816A
MAX4719
DRVR_EN
CLK_C
DATA_C
MODE
CLK_D
DATA_D
ENA
LONG CABLE
FROM SOURCE
+5V
BYP
SER
PAR
+5V
47k
Ω
47k
Ω
3.3k
Ω
CONNECTOR
TO DISPLAY
10
+5V
3.3k
Ω
10
SERIES MODE:
DRVR_EN = HI (ENA), MODE = LO (SER)
PARALLEL MODE: DRVR_EN = HI (ENA), MODE = HI (PAR)
BYPASS MODE:
DRVR_EN = LO (BYP), MODE = HI (PAR)
ISOLATE MODE:
DRVR_EN = LO (BYP), MODE = LO (SER)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| DS17887-3+ | 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS17887-3IND | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Real-Time Clocks |
| DS17887-3-IND | 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS17887-3IND+ | 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS17887-5 | 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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