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    參數(shù)資料
    型號(hào): CM320
    廠商: C-Media Electronics Inc.
    英文描述: USB2.0 Card Reader Controller
    中文描述: 個(gè)USB2.0讀卡機(jī)控制
    文件頁(yè)數(shù): 3/21頁(yè)
    文件大小: 363K
    代理商: CM320
    CM320
    Updateable USB2.0 Card Reader Controller
    Date: 5/3/2006
    Version:
    1.0
    - 11 -
    31
    CFCD
    I
    ST
    CF Card detect pin, low active
    32
    GND
    PWR
    Digital Ground pin
    33
    VCC3V
    PWR
    Digital power. Connected to 3.3 V
    34
    SDPWR
    O
    SD Card power MOS
    35
    NC
    Not Connected Pin
    36
    NC
    Not Connected Pin
    37
    XSCI
    I
    Analog input. Crystal oscillator
    input 12M
    38
    XSCO
    O
    Analog output. Crystal oscillator
    output 12M
    39
    VCCHST
    PWR
    Analog power pin. Connected to
    3.3V power
    40
    GND_U20
    PWR
    Analog ground
    41
    RREF
    I
    Analog input.
    Connects external reference
    resistor (12.1k +- 1%) to
    Analog GND
    42
    DM
    IO
    Bidirection pin, USB 2.0 data in
    data negative pin terminal
    43
    DP
    IO
    Bidirection pin, USB 2.0 data in
    data positive pin terminal
    44
    VCCA
    PWR
    PHY power in for analog.
    Connected to 3.3V
    45
    GNDA
    PWR
    Analog Ground pin
    46
    GND
    PWR
    Digital Ground pin
    47
    VCC5V(I)
    I
    5V input of 5-> 3.3V regulator
    48
    VCC3V(O)
    O
    3V output of 5-> 3.3V regulator
    49
    N.C.
    50
    VCC2.5V(O)
    O
    2.5V output of 3.3->2.5V regulator
    51
    GND(O)
    PWR
    Digital Ground pin
    52
    GND(O)
    PWR
    Digital Ground pin
    53
    CFD[3]
    IO
    SR, ST
    CF card data bus
    54
    CFD[11]
    IO
    SR, ST
    CF card data bus
    55
    CFD[4]
    IO
    SR, ST
    CF card data bus
    56
    CFD[12]
    IO
    SR, ST
    CF card data bus
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