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    參數(shù)資料
    型號(hào): MPC8347CVRAJFB
    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, 533 MHz, MICROPROCESSOR, PBGA620
    封裝: 29 X 29 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-620
    文件頁(yè)數(shù): 5/98頁(yè)
    文件大?。?/td> 1084K
    代理商: MPC8347CVRAJFB
    MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 11
    Freescale Semiconductor
    13
    RESET Initialization
    4.3
    TSEC Gigabit Reference Clock Timing
    Table 8 provides the TSEC gigabit reference clocks (EC_GTX_CLK125) AC timing specifications.
    5
    RESET Initialization
    This section describes the DC and AC electrical specifications for the reset initialization timing and
    electrical requirements of the MPC8347EA.
    5.1
    RESET DC Electrical Characteristics
    Table 9 provides the DC electrical characteristics for the RESET pins of the MPC8347EA.
    Table 8. EC_GTX_CLK125 AC Timing Specifications
    At recommended operating conditions with LVDD = 2.5 ± 0.125 mV/ 3.3 V ± 165 mV
    Parameter
    Symbol
    Min
    Typical
    Max
    Unit
    Notes
    EC_GTX_CLK125 frequency
    tG125
    —125
    MHz
    EC_GTX_CLK125 cycle time
    tG125
    —8
    ns
    EC_GTX_CLK rise and fall time
    LVDD = 2.5 V
    LVDD = 3.3 V
    tG125R/tG125F
    ——
    0.75
    1.0
    ns
    1
    EC_GTX_CLK125 duty cycle
    GMII, TBI
    1000Base-T for RGMII, RTBI
    tG125H/tG125
    45
    47
    55
    53
    %2
    EC_GTX_CLK125 jitter
    ±150
    ps
    2
    Notes:
    1. Rise and fall times for EC_GTX_CLK125 are measured from 0.5 and 2.0 V for LVDD = 2.5 V and from 0.6 and 2.7 V for
    LVDD =3.3 V.
    2. EC_GTX_CLK125 is used to generate the GTX clock for the eTSEC transmitter with 2% degradation. The EC_GTX_CLK125
    duty cycle can be loosened from 47%/53% as long as the PHY device can tolerate the duty cycle generated by the eTSEC
    GTX_CLK. See Section 8.2.4, “RGMII and RTBI AC Timing Specifications for the duty cycle for 10Base-T and 100Base-T
    reference clock.
    Table 9. RESET Pins DC Electrical Characteristics1
    Parameter
    Symbol
    Condition
    Min
    Max
    Unit
    Input high voltage
    VIH
    —2.0
    OVDD +0.3
    V
    Input low voltage
    VIL
    —–0.3
    0.8
    V
    Input current
    IIN
    ——
    ±5
    μA
    Output high voltage2
    VOH
    IOH = –8.0 mA
    2.4
    V
    Output low voltage
    VOL
    IOL = 8.0 mA
    0.5
    V
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