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    參數(shù)資料
    型號: MCIMX251AJM4
    廠商: Freescale Semiconductor
    文件頁數(shù): 54/140頁
    文件大?。?/td> 0K
    描述: IC MPU IMX25 AUTO 400MAPBGA
    標(biāo)準(zhǔn)包裝: 90
    系列: i.MX25
    核心處理器: ARM9
    芯體尺寸: 32-位
    速度: 400MHz
    連通性: 1 線,CAN,EBI/EMI,以太網(wǎng),I²C,MMC,智能卡,SPI,SSI,UART/USART,USB OTG
    外圍設(shè)備: DMA,I²S,POR,PWM,WDT
    輸入/輸出數(shù): 128
    程序存儲器類型: 外部程序存儲器
    RAM 容量: 144K x 8
    電壓 - 電源 (Vcc/Vdd): 1.15 V ~ 1.52 V
    數(shù)據(jù)轉(zhuǎn)換器: A/D 3x12b
    振蕩器型: 外部
    工作溫度: -40°C ~ 85°C
    封裝/外殼: 400-LFBGA
    包裝: 托盤
    i.MX25 Applications Processor for Automotive Products, Rev. 10
    20
    Freescale Semiconductor
    3.4
    Thermal Characteristics
    The thermal resistance characteristics for the device are given in Table 16. These values are measured
    under the following conditions:
    Two-layer substrate
    Substrate solder mask thickness: 0.025 mm
    Substrate metal thicknesses: 0.016 mm
    Substrate core thickness: 0.200 mm
    Core through I.D: 0.118 mm, Core through plating 0.016 mm.
    Flag: Trace style with ground balls under the die connected to the flag
    Die Attach: 0.033 mm non-conductive die attach, k = 0.3 W/m K
    Mold compound: Generic mold compound; k = 0.9 W/m K
    3.5
    I/O DC Parameters
    This section includes the DC parameters of the following I/O types:
    DDR I/O: Mobile DDR (mDDR), double data rate (DDR2), or synchronous dynamic random
    access memory (SDRAM)
    General purpose I/O (GPIO)
    Table 16. Thermal Resistance Data
    Rating
    Condition
    Symbol
    Value
    Unit
    Junction to ambient1 natural convection
    1 Junction-to-ambient thermal resistance determined per JEDC JESD51-3 and JESD51-6. Thermal test board meets JEDEC
    specification for this package.
    Single layer board (1s)
    ReJA
    55
    °C/W
    Junction to ambient1 natural convection
    Four layer board (2s2p)
    ReJA
    33
    °C/W
    Junction to ambient1 (@200 ft/min)
    Single layer board (1s)
    ReJMA
    46
    °C/W
    Junction to ambient1 (@200 ft/min)
    Four layer board (2s2p)
    ReJMA
    29
    °C/W
    Junction to boards2
    2 Junction-to-board thermal resistance determined per JEDC JESD51-8. Thermal test board meets JEDEC specification for
    this package.
    —ReJB
    22
    °C/W
    Junction to case (top)3
    3 Junction-to-case at the top of the package determined using MIL-STD 883 Method 1012.1. The cold plate temperature is
    used for the case temperature. Reported value includes the thermal resistance of the interface layer.
    —ReJCtop
    13
    °C/W
    Junction to package top4
    4 Thermal characterization parameter indicating the temperature difference between the package top and the junction
    temperature per JEDEC JESD51-2. When Greek letters are not available, this thermal characterization parameter is written
    as Psi-JT.
    Natural convection
    ΨJT
    2°C/W
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    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
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