- 您现在的位置：买卖IC网 > PDF目录69036 > MPC8245LZU266B (MOTOROLA INC) 32-BIT, 266 MHz, RISC PROCESSOR, PBGA352 PDF资料下载
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： | 20/64页 |
| 文件大小： | 940K |
| 代理商： | MPC8245LZU266B |
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页当前第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
MOTOROLA
MPC8245 Integrated Processor Hardware Specifications
27
Electrical and Thermal Characteristics
Figure 16. I2C Timing Diagram I
Table 14. I2C Output AC Timing Specifications
Num
Characteristic
Min
Max
Unit
Notes
1
Start condition hold time
(FDR[5] == 0)
× (DFDR/16)/2N + (FDR[5]
== 1)
× (DFDR/16)/2M
—
CLKs
1, 2, 3
2
Clock low period
DFDR/2
—
CLKs
1, 2, 3
3
SCL/SDA rise time
(from 0.5 V to 2.4 V)
——
ms
4
Data hold time
8.0 + (16
× 2FDR[4:2]) × (5 –
4({FDR[5],FDR[1]} == b’10) –
3({FDR[5],FDR[1]} == b’11) –
2({FDR[5],FDR[1]} == b’00) –
1({FDR[5],FDR[1]} == b’01))
—
CLKs
1, 2, 3
5
SCL/SDA fall time
(from 2.4 V to 0.5 V)
—< 5
ns
5
6
Clock high time
DFDR/2
—
CLKs
1, 2, 3
7
Data setup time
(MPC8245 as a master only)
(DFDR/2) – (output data hold time)
—
CLKs
1, 3
8
Start condition setup time
(for repeated start condition only)
DFDR + (output start condition hold time)
—
CLKs
1, 2, 3
9
Stop condition setup time
4.0
—
CLKs
1, 2
Notes:
1. Units for these specifications are in SDRAM_CLK units.
2. The actual values depend on the setting of the digital filter frequency sampling rate (DFFSR) bits in the frequency
divider register I2CFDR. Therefore, the noted timings in the above table are all relative to qualified signals. The
qualified SCL and SDA are delayed signals from what is seen in real time on the I2C bus. The qualified SCL, SDA
signals are delayed by the SDRAM_CLK clock times DFFSR times 2 plus 1 SDRAM_CLK clock. The resulting delay
value is added to the value in the table (where this note is referenced). See Figure 17.
3. DFDR is the decimal divider number indexed by FDR[5:0] value. Refer to Table 10-5 in the MPC8245 Integrated
Processor User’s Manual. FDR[x] refers to bit x of the frequency divider register I2CFDR. N is equal to a variable
number that would make the result of the divide (data hold time value) equal to a number less than 16. M is equal
to a variable number that would make the result of the divide (data hold time value) equal to a number less than 9.
4. Since SCL and SDA are open-drain type outputs, which the MPC8245 can only drive low, the time required for SCL
or SDA to reach a high level depends on external signal capacitance and pull-up resistor values.
5. Specified at a nominal 50 pF load.
SCL
SDA
VM
6
2
1
4
相关PDF资料 |
PDF描述 |
|---|---|
| MPC8260ACZUMIBB | 32-BIT, 266 MHz, RISC PROCESSOR, PBGA480 |
| MPC8260AZUPIBB | 32-BIT, 300 MHz, RISC PROCESSOR, PBGA480 |
| MPC8260AZUPJDB | 32-BIT, 300 MHz, RISC PROCESSOR, PBGA480 |
| MPC8260AZUMHBB | 32-BIT, 266 MHz, RISC PROCESSOR, PBGA480 |
| MPC8379EVRALGA | 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689 |
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 |
发布紧急采购，3分钟左右您将得到回复。