参数资料
型号: MCF5484CVR200
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 200 MHz, RISC PROCESSOR, PBGA388
封装: 27 X 27 MM, 1 MM PITCH, MS-034AAL-1, PBGA-388
文件页数: 31/34页
文件大小: 602K
代理商: MCF5484CVR200
MCF548x ColdFire Microprocessor, Rev. 4
Hardware Design Considerations
Freescale Semiconductor
6
4
Hardware Design Considerations
4.1
PLL Power Filtering
To further enhance noise isolation, an external filter is strongly recommended for PLL analog VDD pins. The filter shown in
Figure 2 should be connected between the board VDD and the PLL VDD pins. The resistor and capacitors should be placed as
close to the dedicated PLL VDD pin as possible.
Figure 2. System PLL VDD Power Filter
4.2
Supply Voltage Sequencing and Separation Cautions
Figure 3 shows situations in sequencing the I/O VDD (EVDD), SDRAM VDD (SD VDD), PLL VDD (PLL VDD), and Core VDD
(IVDD).
USB PLL operation voltage range
USB_PLLVDD
1.43
1.58
V
Input high voltage SSTL 3.3V/2.5V2
VIH
VREF + 0.3
SD VDD + 0.3
V
Input low voltage SSTL 3.3V/2.5V2
VIL
VSS - 0.3
VREF - 0.3
V
Input high voltage 3.3V I/O pins
VIH
0.7 x EVDD
EVDD + 0.3
V
Input low voltage 3.3V I/O pins
VIL
VSS - 0.3
0.35 x EVDD
V
Output high voltage IOH = 8 mA, 16 mA,24 mA
VOH
2.4
V
Output low voltage IOL = 8 mA, 16 mA,24 mA
5
VOL
—0.5
V
Capacitance 3, Vin =0 V, f = 1 MHz
CIN
—TBD
pF
Input leakage current
Iin
–1.0
1.0
μA
1 IV
DD and PLL VDD should be at the same voltage. PLL VDD should have a filtered input. Please see Figure 2 for an
example circuit. There are three PLL VDD inputs. A filter circuit should used on each PLL VDD input.
2 This specification is guaranteed by design and is not 100% tested.
3 Capacitance C
IN is periodically sampled rather than 100% tested.
Table 4. DC Electrical Specifications (continued)
Characteristic
Symbol
Min
Max
Units
Board VDD
10
Ω
0.1 F
PLL VDD Pin
10 F
GND
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MCF5484CVR200 制造商:Freescale Semiconductor 功能描述:Microprocessor IC
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MCF5485 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MCF548x ColdFire㈢ Microprocessor
MCF5485CVR200 功能描述:微处理器 - MPU MCF548X V4ECORE MMU FPU 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
MCF5485CZP200 功能描述:微处理器 - MPU MCF548X V4ECORE MMU FPU 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