• <big id="ps2ji"><tr id="ps2ji"><label id="ps2ji"></label></tr></big>
  • <rp id="ps2ji"></rp>
  • 參數(shù)資料
    型號: MPC8378VRALG
    廠商: Freescale Semiconductor
    文件頁數(shù): 27/128頁
    文件大?。?/td> 0K
    描述: MPU POWERQUICC II PRO 689-PBGA
    標(biāo)準(zhǔn)包裝: 27
    系列: MPC83xx
    處理器類型: 32-位 MPC83xx PowerQUICC II Pro
    速度: 667MHz
    電壓: 1V
    安裝類型: 表面貼裝
    封裝/外殼: 689-BBGA 裸露焊盤
    供應(yīng)商設(shè)備封裝: 689-TEPBGA II(31x31)
    包裝: 托盤
    MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
    122
    Freescale Semiconductor
    These capacitors should have a value of 0.01 or 0.1 F. Only ceramic SMT (surface mount technology)
    capacitors should be used to minimize lead inductance, preferably 0402 or 0603 sizes.
    In addition, it is recommended that there be several bulk storage capacitors distributed around the PCB,
    feeding the VDD, OVDD, GVDD, and LVDD planes, to enable quick recharging of the smaller chip
    capacitors. These bulk capacitors should have a low ESR (equivalent series resistance) rating to ensure the
    quick response time necessary. They should also be connected to the power and ground planes through two
    vias to minimize inductance. Suggested bulk capacitors—100–330 F (AVX TPS tantalum or Sanyo
    OSCON).
    24.3
    Connection Recommendations
    To ensure reliable operation, it is highly recommended that unused inputs be connected to an appropriate
    signal level. Unused active low inputs should be tied to OVDD, GVDD, or LVDD as required. Unused
    active high inputs should be connected to GND. All NC (no-connect) signals must remain unconnected.
    Power and ground connections must be made to all external VDD, GVDD, LVDD, OVDD, and GND pins
    of the device.
    24.4
    Output Buffer DC Impedance
    The device drivers are characterized over process, voltage, and temperature. For all buses, the driver is a
    push-pull single-ended driver type (open drain for I2C).
    To measure Z0 for the single-ended drivers, an external resistor is connected from the chip pad to OVDD
    or GND. Then, the value of each resistor is varied until the pad voltage is OVDD/2 (see Figure 69). The
    output impedance is the average of two components, the resistances of the pull-up and pull-down devices.
    When data is held high, SW1 is closed (SW2 is open) and RP is trimmed until the voltage at the pad equals
    OVDD/2. RP then becomes the resistance of the pull-up devices. RP and RN are designed to be close to each
    other in value. Then, Z0 = (RP + RN)/2.
    Figure 69. Driver Impedance Measurement
    OVDD
    OGND
    RP
    RN
    Pad
    Data
    SW1
    SW2
    相關(guān)PDF資料
    PDF描述
    MPC8377VRALG MPU POWERQUICC II PRO 689-PBGA
    MPC866PCZP100A IC MPU POWERQUICC 100MHZ 357PBGA
    MPC603RRX200LC IC MPU POWERPC 200MHZ 255-CBGA
    MC68360ZQ25L IC MPU QUICC 25MHZ 357-PBGA
    MC68360VR25L IC MPU QUICC 25MHZ 357-PBGA
    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    MPC8378VRALGA 功能描述:微處理器 - MPU 8378 PBGA ST PbFr No ENC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
    MPC8378VRANDA 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
    MPC8378VRANFA 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
    MPC8378VRANG 功能描述:微處理器 - MPU 837X Non-Encrypted RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
    MPC8378VRANGA 功能描述:微處理器 - MPU 8378 PBGA ST PbFr No ENC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324