參數(shù)資料
型號(hào): XR17D152IM
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
中文描述: 2 CHANNEL(S), 6.25M bps, SERIAL COMM CONTROLLER, PQFP100
封裝: 14 X 14 MM, 1 MM HEIGHT, TQFP-100
文件頁(yè)數(shù): 7/68頁(yè)
文件大?。?/td> 772K
代理商: XR17D152IM
á
REV. 1.2.0
XR17D152
UNIVERSAL (3.3V AND 5V) PCI BUS DUAL UART
7
1.0
APPLICATION EXAMPLES
The XR17D152 is designed to operate with VCC (voltage to the UART Core Logic) greater than or equal to
VIO. For a universal add-in card, it is usually unknown whether it will be plugged into a 3.3V or 5V PCI slot,
therefore VCC must be 5V to guarantee proper functionality in any PCI slot as shown in
Figure 3
. In an
embedded system, the designer can choose to use a 3.3V or 5V power supply for the UART core voltage. Of
course, the core voltage can be 3.3V only when the VIO is 3.3V. In
Figure 4
, examples 1-3 show valid
applications of the XR17D152 in an embedded system.
F
IGURE
3. T
YPICAL
A
PPLICATION
FOR
A
U
NIVERSAL
A
DD
-
IN
C
ARD
PCI
Local
Bus
Interface
UART Channel 1
UART Channel 0
UART Core Logic
VCC = 5V
VIO
(3.3V or 5V)
CLK
(up to 33.34MHz)
Max Crystal Frequency = 24MHz
Max External Clock = 50MHz
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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XR17D154 制造商:EXAR 制造商全稱:EXAR 功能描述:UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
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XR17D154CV-0A-EVB 功能描述:界面開發(fā)工具 Supports D154 144 ld TQFP, PCI Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
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