參數(shù)資料
    型號(hào): MPC8378ECVRALFA
    廠(chǎng)商: FREESCALE SEMICONDUCTOR INC
    元件分類(lèi): 微控制器/微處理器
    英文描述: 32-BIT, 333 MHz, MICROPROCESSOR, PBGA689
    封裝: 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
    文件頁(yè)數(shù): 76/125頁(yè)
    文件大小: 894K
    代理商: MPC8378ECVRALFA
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    MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 5
    Freescale Semiconductor
    54
    11.3
    eSDHC AC Timing Specifications (High-Speed Mode)
    The following table provides the eSDHC AC timing specifications for high-speed mode as defined in Figure 34 and Figure 35.
    This figure provides the eSDHC clock input timing diagram.
    Figure 33. eSDHC Clock Input Timing Diagram
    Table 48. eSDHC AC Timing Specifications for High-Speed Mode
    At recommended operating conditions OVDD = 3.3 V ± 165 mV.
    Parameter
    Min
    Max
    Unit
    Note
    SD_CLK clock frequency—high speed mode
    fSHSCK
    050
    MHz
    SD_CLK clock cycle
    tSHSCK
    20
    ns
    SD_CLK clock frequency—identification mode
    fSIDCK
    0400
    KHz
    SD_CLK clock low time
    tSHSCKL
    7—
    ns
    SD_CLK clock high time
    tSHSCKH
    7—
    ns
    SD_CLK clock rise and fall times
    tSHSCKR/
    tSHSCKF
    —3
    ns
    Input setup times: SD_CMD, SD_DATx, SD_CD to SD_CLK
    tSHSIVKH
    5—
    ns
    Input hold times: SD_CMD, SD_DATx, SD_CD to SD_CLK
    tSHSIXKH
    0—
    ns
    Output delay time: SD_CLK to SD_CMD, SD_DATx valid
    tSHSKHOV
    —4
    ns
    Output Hold time: SD_CLK to SD_CMD, SD_DATx invalid
    tSHSKHOX
    0—
    ns
    SD_CLK delay within device
    tINT_CLK_DLY
    1.5
    ns
    SD Card Input Setup
    tISU
    6—
    ns
    SD Card Input Hold
    tIH
    2—
    ns
    SD Card Output Valid
    tODLY
    —14
    ns
    SD Card Output Hold
    tOH
    2.5
    ns
    Notes:
    1. The symbols used for timing specifications herein follow the pattern of t(first three letters of functional block)(signal)(state)
    (reference)(state) for inputs and t(first three letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tSFSIXKH
    symbolizes eSDHC full mode speed device timing (SFS) input (I) to go invalid (X) with respect to the clock reference (K)
    going to high (H). Also tSFSKHOV symbolizes eSDHC full speed timing (SFS) for the clock reference (K) to go high (H), with
    respect to the output (O) going valid (V) or data output valid time. Note that, in general, the clock reference symbol
    representation is based on five letters representing the clock of a particular functional. For rise and fall times, the latter
    convention is used with the appropriate letter: R (rise) or F (fall).
    2. Measured at capacitive load of 40 pF.
    3. For reference only, according to the SD card specifications.
    4. Average, for reference only.
    eSDHC
    tSHSCKR
    External Clock
    VM
    tSHSCK
    tSHSCKF
    VM = Midpoint Voltage (OVDD/2)
    operational mode
    tSHSCKL
    tSHSCKH
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