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  • 參數(shù)資料
    型號: LH79525N0Q100A1
    廠商: NXP Semiconductors N.V.
    元件分類: 數(shù)學(xué)處理器
    英文描述: System-on-Chip
    封裝: LH79524N0F100A1<SOT1019-1 (LFBGA208)|<<http://www.nxp.com/packages/SOT1019-1.html<1<Always Pb-free,;LH79525N0Q100A1<SOT1017-1 (LQFP176)|<<http://www.nxp.com/packages/SOT1
    文件頁數(shù): 44/64頁
    文件大?。?/td> 970K
    代理商: LH79525N0Q100A1
    LH79524/LH79525
    System-on-Chip
    44
    Rev. 01
    16 July 2007
    Preliminary data sheet
    NXP Semiconductors
    External DMA Handshake Signal Timing
    DREQ TIMING
    Once asserted, DREQ must not transition from LOW
    to HIGH again until after nDACK has been asserted.
    DACK/DEOT TIMING
    These timing diagrams indicate when nDACK and
    DEOT occur in relation to an external bus access to/from
    the external peripheral that requested the DMA transfer.
    The first diagram shows the timing with relation to a
    single read or the last word of a burst read from the
    requesting peripheral. The remaining diagrams show
    timing for data transfers.
    Figure 23. DREQ Timing Restrictions
    Figure 24. Read, from Peripheral to Memory, Burst Size = 1
    DREQ
    MUST NOT
    TRANSITON
    DREQ MAY
    TRANSITON
    tDREQ0L,
    tDREQ1L
    DREQ0,
    DREQ1
    DACK0
    nDACK1
    NOTE:
    tDREQ0L = DREQ0 LOW Pulse Width = 2 HCLK MIN.
    tDREQ1L = DREQ1 LOW Pulse Width = 2 HCLK MIN.
    LH79525-5
    HCLK
    (See Note)
    A[23:0]
    ADDRESS
    DATA
    D[31:0]
    nCSx
    nWEN
    nBLE[1:0]
    nOE
    DACK0/
    DEOT0/DEOT1
    nDACK1
    NOTE:
    * HCLK is an internal signal provided for reference only.
    LH79525-6
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    LH79525N0Q100A1,55 功能描述:ARM微控制器 - MCU LCD,USB,ETH’NET,MMU,ADC,QFP176 RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:72 MHz 程序存儲器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
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