- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄4075 > MPC875CVR66 (Freescale Semiconductor)IC MPU POWERQUICC 66MHZ 256PBGA PDF資料下載
參數(shù)資料
| 型號： | MPC875CVR66 |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 8/84頁 |
| 文件大小： | 0K |
| 描述： | IC MPU POWERQUICC 66MHZ 256PBGA |
| 標準包裝： | 60 |
| 系列： | MPC8xx |
| 處理器類型： | 32-位 MPC8xx PowerQUICC |
| 速度： | 66MHz |
| 電壓： | 3.3V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 256-BGA |
| 供應商設備封裝： | 256-PBGA（23x23） |
| 包裝： | 托盤 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當前第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頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁
MPC875/MPC870 PowerQUICC Hardware Specifications, Rev. 4
16
Freescale Semiconductor
Layout Practices
10 Layout Practices
Each VDD pin on the MPC875/MPC870 should be provided with a low-impedance path to the board’s
supply. Each GND pin should likewise be provided with a low-impedance path to ground. The power
supply pins drive distinct groups of logic on chip. The V
DD power supply should be bypassed to ground
using at least four 0.1-F bypass capacitors located as close as possible to the four sides of the package.
Each board designed should be characterized and additional appropriate decoupling capacitors should be
used if required. The capacitor leads and associated printed-circuit traces connecting to chip VDD and
GND should be kept to less than half an inch per capacitor lead. At a minimum, a four-layer board
employing two inner layers as VDD and GND planes should be used.
All output pins on the MPC875/MPC870 have fast rise and fall times. Printed circuit (PC) trace
interconnection length should be minimized in order to minimize undershoot and reflections caused by
these fast output switching times. This recommendation particularly applies to the address and data buses.
Maximum PC trace lengths of 6 inches are recommended. Capacitance calculations should consider all
device loads as well as parasitic capacitances due to the PC traces. Attention to proper PCB layout and
bypassing becomes especially critical in systems with higher capacitive loads because these loads create
higher transient currents in the VDD and GND circuits. Pull up all unused inputs or signals that will be
inputs during reset. Special care should be taken to minimize the noise levels on the PLL supply pins. For
more information, refer to Section 14.4.3, “Clock Synthesizer Power (VDDSYN, VSSSYN, VSSSYN1),” in
the MPC885 PowerQUICC Family Reference Manual.
PADIR (Port A data direction register)
PADIR[5:9]
PADIR[12:13]
0
PBPAR (Port B pin assignment register)
PBPAR[14:18]
PBPAR[20:22]
0
PBDIR (Port B data direction register)
PBDIR[14:8]
PBDIR[20:22]
0
PCPAR (Port C pin assignment register)
PCPAR[4:5]
PCPAR[8:9]
PCPAR[14]
0
PCDIR (Port C data direction register)
PCDIR[4:5]
PCDIR[8:9]
PCDIR[14]
0
PDPAR (Port D pin assignment register)
PDPAR[3:7]
PDPAR[9:5]
0
PDDIR (Port D data direction register)
PDDIR[3:7]
PDDIR[9:15]
0
Table 7. Mandatory Reset Configuration of MPC875/MPC870 (continued)
Register/Configuration
Field
Value
(Binary)
相關PDF資料 |
PDF描述 |
|---|---|
| MPC875CZT66 | IC MPU POWERQUICC 66MHZ 256PBGA |
| IDT70V24S35J8 | IC SRAM 64KBIT 35NS 84PLCC |
| IDT70V24S25J8 | IC SRAM 64KBIT 25NS 84PLCC |
| MPC8321EZQAFDC | IC MPU PWRQUICC II 516-PBGA |
| MPC8321EVRAFDC | IC MPU PWRQUICC II 516-PBGA |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC875CZT133 | 功能描述:微處理器 - MPU PQ I HIP6W DUET 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 |
| MPC875CZT66 | 功能描述:微處理器 - MPU PQ I HIP6W DUET 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 |
| MPC875VR133 | 功能描述:微處理器 - MPU 133 MHz 176 MIPS 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 |
| MPC875VR66 | 功能描述:微處理器 - MPU 66 MHz 87 MIPS 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 |
| MPC875VR80 | 功能描述:微處理器 - MPU PQ I HIP6W DUET 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。