參數(shù)資料
型號(hào)： MPC8343EVRADDB
廠商： Freescale Semiconductor
文件頁(yè)數(shù)： 71/80頁(yè)
文件大?。?/td> 0K
描述： IC MPU PWRQUICC II 620-PBGA
產(chǎn)品培訓(xùn)模塊： MPC834x PowerQUICC II Processors
標(biāo)準(zhǔn)包裝： 36
系列： MPC83xx
處理器類型： 32-位 MPC83xx PowerQUICC II Pro
速度： 266MHz
電壓： 1.2V
安裝類型： 表面貼裝
封裝/外殼： 620-BBGA 裸露焊盤
供應(yīng)商設(shè)備封裝： 620-PBGA（29x29）
包裝： 托盤
MPC8343EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 11
Freescale Semiconductor
73
System Design Information
RθJC = junction-to-case thermal resistance (°C/W)
PD = power dissipation (W)
21 System Design Information
This section provides electrical and thermal design recommendations for successful application of the
MPC8343EA.
21.1
System Clocking
The MPC8343EA includes two PLLs:
1. The platform PLL generates the platform clock from the externally supplied CLKIN input. The
frequency ratio between the platform and CLKIN is selected using the platform PLL ratio
configuration bits as described in Section 19.1, “System PLL Configuration.”
2. The e300 core PLL generates the core clock as a slave to the platform clock. The frequency ratio
between the e300 core clock and the platform clock is selected using the e300 PLL ratio
configuration bits as described in Section 19.2, “Core PLL Configuration.”
21.2
PLL Power Supply Filtering
Each PLL gets power through independent power supply pins (AVDD1, AVDD2, respectively). The AVDD
level should always equal to VDD, and preferably these voltages are derived directly from VDD through a
low frequency filter scheme.
There are a number of ways to provide power reliably to the PLLs, but the recommended solution is to
provide four independent filter circuits as illustrated in Figure 38, one to each of the four AVDD pins.
Independent filters to each PLL reduce the opportunity to cause noise injection from one PLL to the other.
The circuit filters noise in the PLL resonant frequency range from 500 kHz to 10 MHz. It should be built
with surface mount capacitors with minimum effective series inductance (ESL). Consistent with the
recommendations of Dr. Howard Johnson in High Speed Digital Design: A Handbook of Black Magic
(Prentice Hall, 1993), multiple small capacitors of equal value are recommended over a single large value
capacitor.
To minimize noise coupled from nearby circuits, each circuit should be placed as closely as possible to the
specific AVDD pin being supplied. It should be possible to route directly from the capacitors to the AVDD
pin, which is on the periphery of package, without the inductance of vias.
Figure 38 shows the PLL power supply filter circuit.
Figure 38. PLL Power Supply Filter Circuit
VDD
AVDD (or L2AVDD)
2.2 F
GND
Low ESL Surface Mount Capacitors
10
Ω
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8343EVRAGD 功能描述:IC MPU PWRQUICC II PRO 620-PBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC83xx 標(biāo)準(zhǔn)包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點(diǎn):- 速度:1.2GHz 電壓:1.1V 安裝類型:表面貼裝 封裝/外殼:783-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:783-FCPBGA（29x29） 包裝:托盤
MPC8343EVRAGDB 功能描述:微處理器 - MPU 8347 PBGA NOPB W/ENC 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(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
MPC8343EVRAGDB 制造商:Freescale Semiconductor 功能描述:Embedded Networking Processor
MPC8343EZQADD 功能描述:IC MPU PWRQUICC II PRO 620-PBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC83xx 標(biāo)準(zhǔn)包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點(diǎn):- 速度:1.2GHz 電壓:1.1V 安裝類型:表面貼裝 封裝/外殼:783-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:783-FCPBGA（29x29） 包裝:托盤
MPC8343EZQADDB 功能描述:微處理器 - MPU 8347 PBGA PB W/ ENC 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(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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