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  • 參數(shù)資料
    型號: MPC8572EVTAVNB
    廠商: Freescale Semiconductor
    文件頁數(shù): 94/138頁
    文件大小: 0K
    描述: MPU POWERQUICC III 1023-PBGA
    標(biāo)準(zhǔn)包裝: 1
    系列: MPC85xx
    處理器類型: 32-位 MPC85xx PowerQUICC III
    速度: 1.5GHz
    電壓: 1.1V
    安裝類型: 表面貼裝
    封裝/外殼: 1023-BBGA,F(xiàn)CBGA
    供應(yīng)商設(shè)備封裝: 1023-FCPBGA(33x33)
    包裝: 托盤
    MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
    Freescale Semiconductor
    59
    Local Bus Controller (eLBC)
    NOTE
    In PLL bypass mode, LCLK[n] is the inverted version of the internal clock
    with the delay of tLBKHKT. In this mode, signals are launched at the rising edge
    of the internal clock and are captured at the falling edge of the internal clock
    with the exception of LGTA/LUPWAIT (which is captured on the rising
    edge of the internal clock).
    LALE output negation to high impedance for
    LAD/LDP (LATCH hold time)
    tLBOTOT
    1.5
    ns
    6
    Local bus clock to output valid (except LAD/LDP and
    LALE)
    tLBKLOV1
    —–0.3
    ns
    Local bus clock to data valid for LAD/LDP
    tLBKLOV2
    —–0.1
    ns
    4
    Local bus clock to address valid for LAD
    tLBKLOV3
    —0.0
    ns
    4
    Local bus clock to LALE assertion
    tLBKLOV4
    —0.0
    ns
    4
    Output hold from local bus clock (except LAD/LDP
    and LALE)
    tLBKLOX1
    –3.3
    ns
    4
    Output hold from local bus clock for LAD/LDP
    tLBKLOX2
    –3.3
    ns
    4
    Local bus clock to output high Impedance (except
    LAD/LDP and LALE)
    tLBKLOZ1
    —0.2
    ns
    7
    Local bus clock to output high impedance for
    LAD/LDP
    tLBKLOZ2
    —0.2
    ns
    7
    Notes:
    1. The symbols used for timing specifications herein follow the pattern of t(First two letters of functional block)(signal)(state) (reference)(state)
    for inputs and t(First two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tLBIXKH1 symbolizes local bus
    timing (LB) for the input (I) to go invalid (X) with respect to the time the tLBK clock reference (K) goes high (H), in this case for
    clock one(1). Also, tLBKHOX symbolizes local bus timing (LB) for the tLBK clock reference (K) to go high (H), with respect to the
    output (O) going invalid (X) or output hold time.
    2. All timings are in reference to local bus clock for PLL bypass mode. Timings may be negative with respect to the local bus
    clock because the actual launch and capture of signals is done with the internal launch/capture clock, which precedes LCLK
    by tLBKHKT.
    3. Maximum possible clock skew between a clock LCLK[m] and a relative clock LCLK[n]. Skew measured between
    complementary signals at BVDD/2.
    4. All signals are measured from BVDD/2 of the rising edge of local bus clock for PLL bypass mode to 0.4 x BVDD of the signal
    in question for 3.3-V signaling levels.
    5. Input timings are measured at the pin.
    6. tLBOTOT is a measurement of the minimum time between the negation of LALE and any change in LAD. tLBOTOT is
    programmed with the LBCR[AHD] parameter.
    7. For purposes of active/float timing measurements, the Hi-Z or off state is defined to be when the total current delivered through
    the component pin is less than or equal to the leakage current specification.
    Table 52. Local Bus General Timing Parameters—PLL Bypassed (continued)
    At recommended operating conditions with BVDD of 3.3 V ± 5%
    Parameter
    Symbol 1
    Min
    Max
    Unit
    Notes
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