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參數(shù)資料
| 型號(hào)： | MPC5200 |
| 廠(chǎng)商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | Hardware Specifications |
| 中文描述： | 硬件規(guī)格 |
| 文件頁(yè)數(shù)： | 73/80頁(yè) |
| 文件大?。?/td> | 790K |
| 代理商： | MPC5200 |
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System Design Information
MPC5200 Data Sheet, Rev. 4
Freescale Semiconductor
73
VDD_CORE/PLL_AVDD and VDD_IO/VDD_IO_MEM should track up to 0.9 V and then separate for
the completion of ramps with VDD_IO/VDD_IO_MEM going to the higher external voltages. One way
to accomplish this is to use a low drop-out voltage regulator.
5.1.2
Power Down Sequence
If VDD_CORE/PLL_AVDD are powered down first, then sense circuits in the I/O pads will cause all
output drivers to be in a high impedance state. There is no limit on how long after VDD_CORE and
PLL_AVDD power down before VDD_IO or VDD_IO_MEM must power down. VDD_CORE should not
lag VDD_IO, VDD_IO_MEM, or PLL_AVDD going low by more than 0.4V during power down or there
will be undesired high current in the ESD protection diodes. There are no requirements for the fall times
of the power supplies.
The recommended power down sequence is as follows:
Drop VDD_CORE/PLL_AVDD to 0V.
Drop VDD_IO/VDD_IO_MEM supplies.
5.2
System and CPU Core AVDD power supply filtering
Each of the independent PLL power supplies require filtering external to the device. The following
drawing is a recommendation for the required filter circuit.
Figure 53. Power Supply Filtering
5.3
Pull-up/Pull-down Resistor Requirements
The MPC5200 requires external pull-up or pull-down resistors on certain pins.
5.3.1
Pull-down Resistor Requirements for TEST pins
The MPC5200 requires pull-down resistors on the test pins TEST_MODE_0, TEST_MODE_1,
TEST_SEL_1.
AVDD device pin
Power
Supply
source
< 1
10
200-400 pF
10
μ
F
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相關(guān)代理商/技術(shù)參數(shù) |
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| MPC5200B | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:SDRAM/DDR Memory Controller |
| MPC5200B_08 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:SDRAM / DDR Memory Controller |
| MPC5200B_10 | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:SDRAM/DDR Memory Controller |
| MPC5200BDS | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Technical Data |
| MPC5200BV400 | 功能描述:微處理器 - MPU 400MHz 760MIPS RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線(xiàn)寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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