参数资料
型号: MPC8378EVRAGD
厂商: Freescale Semiconductor
文件页数: 76/127页
文件大小: 0K
描述: MPU PWRQUICC II 400MHZ 689TEPBGA
标准包装: 27
系列: MPC83xx
处理器类型: 32-位 MPC83xx PowerQUICC II Pro
速度: 400MHz
电压: 1V
安装类型: 表面贴装
封装/外壳: 689-BBGA 裸露焊盘
供应商设备封装: 689-TEPBGA II(31x31)
包装: 托盘
配用: MPC8377E-RDBA-ND - BOARD REF DES MPC8377 REV 2.1
MPC8377E-MDS-PB-ND - BOARD MODULAR DEV SYSTEM
MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
52
Freescale Semiconductor
clock falling edge. Note that the internal clock which is guaranteed to be 50% duty cycle is used to sample
the data, and therefore used in the equations.
11.3.2.1
High-Speed Read Meeting Setup (Maximum Delay)
The following equations show how to calculate the allowed combined propagation delay range of the
SD_CLK and SD_DAT/CMD signals on the PCB.
tCLK_DELAY + tDATA_DELAY + tODLY + tSHSIVKH < 1.5 × tSHSCK
Eqn. 15
tCLK_DELAY + tDATA_DELAY < 1.5 × tSHSCK tODLY tSHSIVKH
Eqn. 16
This means that Data + Clock delay can be up to 11 ns for a 20 ns clock cycle:
tCLK_DELAY + tDATA_DELAY < 30 14 5
tCLK_DELAY + tDATA_DELAY < 11
11.3.2.2
High-Speed Read Meeting Hold (Minimum Delay)
The following equations show how to calculate the allowed combined propagation delay range of the
SD_CLK and SD_DAT/CMD signals on the PCB.
0.5
× tSHSCK < tCLK_DELAY + tDATA_DELAY + tOH tSHSIXKH + tINT_CLK_DLY
Eqn. 17
0.5
× tSHSCK tOH + tSHSIXKH tINT_CLK_DLY < tCLK_DELAY + tDATA_DELAY
Eqn. 18
This means that Data + Clock delay must be greater than ~6 ns for a 20 ns clock cycle:
10 2.5 + (–1.5) < tCLK_DELAY + tDATA_DELAY
6 < tCLK_DELAY + tDATA_DELAY
11.3.2.3
High-Speed Read Combined Formula
The following equation is the combined formula to calculate the propagation delay range of the SD_CLK
and SD_DAT/CMD signals on the PCB.
0.5
× tSHSCK tOH + tSHSIXKH < tCLK_DELAY + tDATA_DELAY < 1.5 × tSHSCK tODLY tSHSIVKH
Eqn. 19
12 JTAG
This section describes the DC and AC electrical specifications for the IEEE 1149.1 (JTAG) interface of
the chip.
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相关代理商/技术参数
参数描述
MPC8378EVRAGDA 功能描述:微处理器 - MPU 8378 PBGA ST PbFr W/ENC 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
MPC8378EVRAGFA 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8378EVRAGGA 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8378EVRAJDA 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
MPC8378EVRAJF 功能描述:微处理器 - MPU PBGA W/ ENCR 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