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  • 參數(shù)資料
    型號: PPC5604BCLL64
    廠商: Freescale Semiconductor
    文件頁數(shù): 79/109頁
    文件大?。?/td> 0K
    描述: MCU 32BIT 512K 64MHZ
    標準包裝: 90
    系列: MPC56xx Qorivva
    核心處理器: e200z0h
    芯體尺寸: 32-位
    速度: 64MHz
    連通性: CAN,I²C,LIN,SCI,SPI
    外圍設(shè)備: POR,PWM,WDT
    輸入/輸出數(shù): 79
    程序存儲器容量: 512KB(512K x 8)
    程序存儲器類型: 閃存
    EEPROM 大小: 4K x 16
    RAM 容量: 32K x 8
    電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
    數(shù)據(jù)轉(zhuǎn)換器: A/D 28x10b
    振蕩器型: 內(nèi)部
    工作溫度: -40°C ~ 85°C
    封裝/外殼: 100-LQFP
    包裝: 托盤
    Package pinouts and signal descriptions
    MPC5604B/C Microcontroller Data Sheet, Rev. 11.1
    Freescale Semiconductor
    71
    Figure 21. Input equivalent circuit (extended channels)
    A second aspect involving the capacitance network shall be considered. Assuming the three capacitances CF, CP1 and CP2 are
    initially charged at the source voltage VA (refer to the equivalent circuit in Figure 20): A charge sharing phenomenon is installed
    when the sampling phase is started (A/D switch close).
    Figure 22. Transient behavior during sampling phase
    In particular two different transient periods can be distinguished:
    RF
    CF
    RS
    RL
    RSW1
    CP3
    CS
    VDD
    Sampling
    Source
    Filter
    Current Limiter
    EXTERNAL CIRCUIT
    INTERNAL CIRCUIT SCHEME
    CP1
    RAD
    Channel
    Selection
    VA
    CP2
    Extended
    RSW2
    Switch
    RS: Source impedance
    RF: Filter resistance
    CF: Filter capacitance
    RL: Current limiter resistance
    RSW1: Channel selection switch impedance (two contributions, RSW1 and RSW2)
    RAD: Sampling switch impedance
    CP: Pin capacitance (two contributions, CP1, CP2 and CP3)
    CS: Sampling capacitance
    VA
    VA1
    VA2
    t
    ts
    VCS
    Voltage transient on CS
    V <0.5 LSB
    1
    2
    1 < (RSW + RAD) CS << ts
    2 = RL (CS + CP1 + CP2)
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