- 您现在的位置：买卖IC网 > PDF目录3998 > KMPC8245LVV300D (Freescale Semiconductor)IC MPU 32BIT 300MHZ 352-TBGA PDF资料下载
参数资料
| 型号： | KMPC8245LVV300D |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 40/68页 |
| 文件大小： | 0K |
| 描述： | IC MPU 32BIT 300MHZ 352-TBGA |
| 标准包装： | 2 |
| 系列： | MPC82xx |
| 处理器类型： | 32-位 MPC82xx PowerQUICC II |
| 速度： | 300MHz |
| 电压： | 1.9V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 352-LBGA |
| 供应商设备封装： | 352-TBGA（35x35） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页当前第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页
MPC8245 Integrated Processor Hardware Specifications, Rev. 10
Freescale Semiconductor
45
System Design
7.3
Connection Recommendations
To ensure reliable operation, connect unused inputs to an appropriate signal level. Tie unused active-low
inputs to OVDD. Connect unused active-high inputs tie to GND. All NC signals must remain unconnected.
Power and ground connections must be made to all external VDD, OVDD, GVDD, LVDD, and GND pins.
The PCI_SYNC_OUT signal is to be routed halfway out to the PCI devices and returned to the
PCI_SYNC_IN input of the MPC8245.
The SDRAM_SYNC_OUT signal is to be routed halfway out to the SDRAM devices and then returned to
the SDRAM_SYNC_IN input of the MPC8245. The trace length can be used to skew or adjust the timing
window as needed. See the Tundra Tsi107 Design Guide (AN1849) and Freescale application notes
AN2164, MPC8245/MPC8241 Memory Clock Design Guidelines: Part 1 and AN2746,
MPC8245/MPC8241 Memory Clock Design Guidelines: Part 2 for details. Note that there is an
SDRAM_SYNC_IN to PCI_SYNC_IN time requirement (refer to Table 10 for the input AC timing
specifications).
7.4
Pull-Up/Pull-Down Resistor Requirements
The data bus input receivers are normally turned off when no read operation is in progress; therefore, they
do not require pull-up resistors on the bus. The data bus signals are: MDH[0:31], MDL[0:31], and
PAR[0:7].
If the 32-bit data bus mode is selected, the input receivers of the unused data and parity bits (MDL[0:31]
and PAR[4:7]) are disabled, and their outputs drive logic zeros when they would otherwise normally be
driven. For this mode, these pins do not require pull-up resistors and should be left unconnected to
minimize possible output switching.
The TEST0 pin requires a pull-up resistor of 120
Ω or less connected to OVDD.
RTC should have weak pull-up resistors (2–10 k
Ω) connected to GVDD.
The following signals should be pulled up to OVDD with weak pull-up resistors (2–10 kΩ): SDA, SCL,
SMI, SRESET/SDMA12, TBEN/SDMA13, CHKSTOP_IN/SDMA14, TRIG_IN/RCS2, INTA,
QACK/DA0 and DRDY. Note that QACK/DA0 should be left without a pull-up resistor only if an external
clock is used because this signal enables internal clock flipping logic when it is low on reset, which is
necessary when the PLL[0:4] signals select a half-clock frequency ratio and an external PLL is used to
drive the SDRAM device.
It is recommended that the following PCI control signals be pulled up to LVDD (the clamping voltage) with
weak pull-up resistors (2–10 k
Ω): DEVSEL, FRAME, IRDY, LOCK, PERR, SERR, STOP, and TRDY.
The resistor values may need to be adjusted stronger to reduce induced noise on specific board designs.
The following pins have internal pull-up resistors enabled at all times: REQ[3:0], REQ4/DA4, TCK, TDI,
TMS, and TRST. See Table 16.
The following pins have internal pull-up resistors enabled only while device is in the reset state:
GNT4/DA5, MDL0, FOE, RCS0, SDRAS, SDCAS, CKE, AS, MCP, MAA[0:2], and PMAA[0:2]. See
相关PDF资料 |
PDF描述 |
|---|---|
| KMPC8245LVV266D | IC MPU 32BIT 266MHZ 352-TBGA |
| KMPC8245ARVV400D | IC MPU 32BIT 400MHZ 352-TBGA |
| KMPC8241TZQ166D | IC MPU 32BIT 166MHZ 357-PBGA |
| KMPC8241LZQ266D | IC MPU 32BIT 266MHZ 357-PBGA |
| KMPC8241LZQ200D | IC MPU 32BIT 200MHZ 357-PBGA |
相关代理商/技术参数 |
参数描述 |
|---|---|
| KMPC8245LVV333D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| KMPC8245LVV350D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| KMPC8245LZU266D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| KMPC8245LZU300D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| KMPC8245LZU333D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
发布紧急采购，3分钟左右您将得到回复。