物理层是网络中所有更高级别功能所依赖的基础层。它是计算机网络的七层 OSI 模型的第一层。物理层可将来自数据链接层的通信请求转换成特定硬件操作，以影响电子信号的传送或接收。

接口&连接

产品选型表

    Processing table
    器件号
    Core Voltage (V)
    Input Freq (MHz)
    Pkg. Type
    Temp. Range
    1893B
    3.3-V 10Base-T/100Base-TX Integrated PHYceiver™    		 3.3 25 -40 to 85°C
    1893C
    3.3-V 10Base-T/100Base-TX Integrated PHYceiver™    		 3.3 25 -40 to 85°C, 0 to 70°C
    1894-32
    10Base-T/100Base-TX Integrated PHYceiver™ with RMII Interface    		 3.3 0 to 70°C
    1894-40
    10Base-T/100Base-TX Integrated PHYceiver™ with RMII Interface    		 3.3 -40 to 85°C, 0 to 70°C
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product