- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45353 > MPC755CPX400LER2 (FREESCALE SEMICONDUCTOR INC) 32-BIT, 400 MHz, RISC PROCESSOR, PBGA360 PDF資料下載
參數(shù)資料
| 型號： | MPC755CPX400LER2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 400 MHz, RISC PROCESSOR, PBGA360 |
| 封裝： | 25 X 25 MM, 2.77 MM HEIGHT, 1.27 MM PITCH, PLASTIC, BGA-360 |
| 文件頁數(shù)： | 36/60頁 |
| 文件大小： | 1559K |
| 代理商： | MPC755CPX400LER2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁當前第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
MPC755 RISC Microprocessor Hardware Specifications, Rev. 7.0
Freescale Semiconductor
41
System Design Information
Figure 22 describes the driver impedance measurement circuit described above.
Figure 22. Driver Impedance Measurement Circuit
Alternately, the following is another method to determine the output impedance of the MPC755. A voltage
source, Vforce, is connected to the output of the MPC755 as shown in Figure 23. Data is held low, the
voltage source is set to a value that is equal to (L2)OVDD/2 and the current sourced by Vforce is measured.
The voltage drop across the pull-down device, which is equal to (L2)OVDD/2, is divided by the measured
current to determine the output impedance of the pull-down device, RN. Similarly, the impedance of the
pull-up device is determined by dividing the voltage drop of the pull-up, (L2)OVDD/2, by the current sank
by the pull-up when the data is high and Vforce is equal to (L2)OVDD/2. This method can be employed with
either empirical data from a test setup or with data from simulation models, such as IBIS.
RP and RN are designed to be close to each other in value. Then Z0 = (RP + RN)/2.
Figure 23 describes the alternate driver impedance measurement circuit.
Figure 23. Alternate Driver Impedance Measurement Circuit
(L2)OVDD
OGND
RP
RN
Pad
Data
SW1
SW2
(L2)OVDD
BGA
Data
Pin
Vforce
OGND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MPC745BVT350LE | 32-BIT, 350 MHz, RISC PROCESSOR, PBGA255 |
| MPC745BPX350LE | 32-BIT, 350 MHz, RISC PROCESSOR, PBGA255 |
| MPC755BPX350LE | 32-BIT, 350 MHz, RISC PROCESSOR, PBGA360 |
| MPC755CPX400LE | 32-BIT, 400 MHz, RISC PROCESSOR, PBGA360 |
| MPC745BVT300LE | 32-BIT, 300 MHz, RISC PROCESSOR, PBGA255 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC755CRX350LE | 功能描述:微處理器 - MPU 360CBGA,RV2.8,6W 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC755CRX350TE | 功能描述:微處理器 - MPU 360CBGA,RV2.8, 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC755CRX400LE | 功能描述:微處理器 - MPU GF RV2.84A105C 360CBGA 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC755CRX400TE | 功能描述:微處理器 - MPU GF RV2.84A-40C 360CBGA 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC755CVT350LE | 功能描述:微處理器 - MPU GF RV2.8,4A,105C,6W 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。