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| 型号： | MPC8347VRAJD |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 533 MHz, RISC PROCESSOR, PBGA620 |
| 封装： | 29 X 29 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-620 |
| 文件页数： | 13/102页 |
| 文件大小： | 1094K |
| 代理商： | MPC8347VRAJD |
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MPC8347E PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 11
18
Freescale Semiconductor
DDR SDRAM
Figure 5 shows the DDR SDRAM output timing for address skew with respect to any MCK.
Figure 5. Timing Diagram for tAOSKEW Measurement
Figure 6 provides the AC test load for the DDR bus.
MDQS epilogue end
tDDKLME
-0.9
0.3
ns
7
Notes:
1. The symbols used for timing specifications follow the pattern of t(first two letters of functional block)(signal)(state)(reference)(state) for
inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. Output hold time can be read as DDR timing
(DD) from the rising or falling edge of the reference clock (KH or KL) until the output went invalid (AX or DX). For example,
tDDKHAS symbolizes DDR timing (DD) for the time tMCK memory clock reference (K) goes from the high (H) state until outputs
(A) are setup (S) or output valid time. Also, tDDKLDX symbolizes DDR timing (DD) for the time tMCK memory clock reference
(K) goes low (L) until data outputs (D) are invalid (X) or data output hold time.
2. All MCK/MCK referenced measurements are made from the crossing of the two signals ±0.1 V.
3. In the source synchronous mode, MCK/MCK can be shifted in 1/4 applied cycle increments through the clock control register.
For the skew measurements referenced for tAOSKEW it is assumed that the clock adjustment is set to align the
address/command valid with the rising edge of MCK.
4. ADDR/CMD includes all DDR SDRAM output signals except MCK/MCK, MCS, and MDQ/MECC/MDM/MDQS. For the
ADDR/CMD setup and hold specifications, it is assumed that the clock control register is set to adjust the memory clocks by
1/2 applied cycle.
5. Note that tDDKHMH follows the symbol conventions described in note 1. For example, tDDKHMH describes the DDR timing (DD)
from the rising edge of the MCK(n) clock (KH) until the MDQS signal is valid (MH). tDDKHMH can be modified through control
of the DQSS override bits in the TIMING_CFG_2 register. In source synchronous mode, this will typically be set to the same
delay as the clock adjust in the CLK_CNTL register. The timing parameters listed in the table assume that these 2 parameters
have been set to the same adjustment value. See the
MPC8349E PowerQUICC II Pro Integrated Host Processor Family
Reference Manual, for a description and understanding of the timing modifications enabled by use of these bits.
6. Determined by maximum possible skew between a data strobe (MDQS) and any corresponding bit of data (MDQ), ECC
(MECC), or data mask (MDM). The data strobe should be centered inside of the data eye at the pins of the MPC8347E.
7. All outputs are referenced to the rising edge of MCK(n) at the pins of the MPC8347E. Note that tDDKHMP follows the symbol
conventions described in note 1.
Table 14. DDR SDRAM Output AC Timing Specifications for Source Synchronous Mode (continued)
At recommended operating conditions with GVDD of 2.5 V ± 5%.
Parameter
Symbol1
Min
Max
Unit
Notes
ADDR/CMD
MCK[n]
tMCK
CMD
NOOP
ADDR/CMD
CMD
NOOP
tAOSKEWmax)
tAOSKEW(min)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC8347VVAGD | 功能描述:IC MPU PWRQUICC II PRO 672-TBGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:MPC83xx 标准包装:1 系列:MPC85xx 处理器类型:32-位 MPC85xx PowerQUICC III 特点:- 速度:1.2GHz 电压:1.1V 安装类型:表面贴装 封装/外壳:783-BBGA，FCBGA 供应商设备封装:783-FCPBGA（29x29） 包装:托盘 |
| MPC8347VVAGDB | 功能描述:微处理器 - MPU 8349 TBGA NO-PB W/O 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 |
| MPC8347VVAJD | 功能描述:IC MPU PWRQUICC II PRO 672-TBGA RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微处理器 系列:MPC83xx 标准包装:1 系列:MPC85xx 处理器类型:32-位 MPC85xx PowerQUICC III 特点:- 速度:1.2GHz 电压:1.1V 安装类型:表面贴装 封装/外壳:783-BBGA，FCBGA 供应商设备封装:783-FCPBGA（29x29） 包装:托盘 |
| MPC8347VVAJDB | 功能描述:微处理器 - MPU 8349 TBGA NO-PB W/O 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 |
| MPC8347VVAJDB | 制造商:Freescale Semiconductor 功能描述:Embedded Networking Processor |
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