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参数资料
| 型号： | MPC8245LZU266B |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 266 MHz, RISC PROCESSOR, PBGA352 |
| 封装： | 35 X 35 MM, 1.65 MM HEIGHT, 1.27 MM PITCH, CAVITY-UP, TBGA-352 |
| 文件页数： | 16/64页 |
| 文件大小： | 940K |
| 代理商： | MPC8245LZU266B |
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MOTOROLA
MPC8245 Integrated Processor Hardware Specifications
23
Electrical and Thermal Characteristics
Figure 14. AC Test Load for the MPC8245
14b
SDRAM_SYNC_IN to output high impedance (for all others)
—
4.0
ns
2
Notes:
1. All PCI signals are measured from GVDD/2 of the rising edge of PCI_SYNC_IN to 0.285 × OVDD or 0.615 × OVDD
of the signal in question for 3.3 V PCI signaling levels. See Figure 12.
2. All memory and related interface output signal specifications are specified from the VM = 1.4 V of the rising edge
of the memory bus clock, SDRAM_SYNC_IN to the TTL level (0.8 or 2.0 V) of the signal in question.
SDRAM_SYNC_IN is the same as PCI_SYNC_IN in 1:1 mode, but is twice the frequency in 2:1 mode
(processor/memory bus clock rising edges occur on every rising and falling edge of PCI_SYNC_IN). See Figure 11.
3. PCI bused signals are composed of the following signals: LOCK, IRDY, C/BE[3:0], PAR, TRDY, FRAME, STOP,
DEVSEL, PERR, SERR, AD[31:0], REQ[4:0], GNT[4:0], IDSEL, INTA.
4. In order to meet minimum output hold specifications relative to PCI_SYNC_IN for both 33- and 66-MHz PCI
systems, the MPC8245 has a programmable output hold delay for PCI signals (the PCI_SYNC_IN to output valid
timing is also affected). The initial value of the output hold delay is determined by the values on the MCP and CKE
reset configuration signals; the values on these two signals are inverted then stored as the initial settings of
PCI_HOLD_DEL = PMCR2[5:4] (power management configuration register 2 <0x72>), respectively. Since MCP
and CKE have internal pull-up resistors, the default value of PCI_HOLD_DEL after reset is 0b00. Further output
hold delay values are available by programming the PCI_HOLD_DEL value of the PMCR2 configuration register.
See Figure 15.
Table 11. Output AC Timing Specifications (continued)
Num
Characteristic
Min
Max
Unit
Notes
Output
Z0 = 50
OVDD/2 for PCI
RL = 50
Output Measurements are Made at the Device Pin
GVDD/2 for Memory
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC8245LZU266D | 功能描述:微处理器 - MPU 266MHz 505.4MIPS 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 |
| MPC8245LZU300D | 功能描述:微处理器 - MPU 300MHz 570MIPS 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 |
| MPC8245LZU333D | 功能描述:微处理器 - MPU 333MHz 632.7MIPS 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 |
| MPC8245LZU350D | 功能描述:微处理器 - MPU 350MHz 665MIPS 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 |
| MPC8245RZU400D | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Part Number Specification for the MPC8245ARZUnnnX Series |
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