參數資料
型號: MCF5471ZP200
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 200 MHz, RISC PROCESSOR, PBGA388
封裝: 27 X 27 MM, 1 MM PITCH, PLASTIC, MS-034AAL-1, BGA-388
文件頁數: 47/96頁
文件大?。?/td> 2003K
代理商: MCF5471ZP200
MOTOROLA
MCF547x Integrated Microprocessor Hardware Specifications
51
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
DesignRecommendations
Figure 6. MCF547x Connections to 100-pin DDR SDRAM DIMM
1.7.7.1.5
DDR SDRAM Layout Considerations
Due to the critical timing for DDR SDRAM there are a number of considerations that should be taken into
account during PCB layout:
Minimize overall trace lengths.
Each DQS, DM, and DQ group must have identical loading and similar routing to maintain timing
integrity.
Control and clock signals are routed point-to-point.
Trace length for clock, address, and command signals should match.
Route DDR signals on layers adjacent to the ground plane
Use a VREF plane under the SDRAM.
VREF is decoupled from both SDVDD and VSS.
To avoid crosstalk keep address and command signals separate from data and data strobes.
Use different resistor packs for command/address and data/data strobes.
Use single series, single parallel termination (25
series, 50 parallel values are recommended,
but standard resistor packs with similar values can be substituted.)
MCF547X
DDR SDRAM
SDADDR[12:0]
SDDATA[31:0]
SDBA[1:0]
SDCS[1:0]
RAS
CAS
SDWE
SDCKE
SDCLK[1:0]
SDDM[3:0]
SDDQS[3:0]
CLK[1:0]
CKE
S[1:0]
RAS
CAS
WE
DM[3:0]
BA[1:0]
A[12:0]
DQ[31:0]
DQS[3:0]
SCL
SDA
SCL
SDA
SA0
SDVDD
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MCF5472ZP200 功能描述:微處理器 - MPU MCF547X V4ECORE MMU FPU RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 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
MCF5473 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCF547x Integrated Microprocessor Electrical Characteristics