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| 型號(hào)： | MPC8548VUAUG |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 1333 MHz, MICROPROCESSOR, CBGA783 |
| 封裝： | 29 X 29 MM, 1 MM PITCH, FLIP CHIP, LEAD FREE, CERAMIC, BGA-783 |
| 文件頁(yè)數(shù)： | 59/142頁(yè) |
| 文件大?。?/td> | 1504K |
| 代理商： | MPC8548VUAUG |
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MPC8548E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
23
DDR and DDR2 SDRAM
NOTE
For the ADDR/CMD setup and hold specifications in Table 19, it is
assumed that the clock control register is set to adjust the memory clocks by
1/2 applied cycle.
Figure 3. Timing Diagram for tDDKHMH
MDQS epilogue end
tDDKHME
–0.6
0.6
ns
6
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. ADDR/CMD includes all DDR SDRAM output signals except MCK/MCK, MCS, and MDQ/MECC/MDM/MDQS.
4. 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 MDQS override bits (called WR_DATA_DELAY) in the TIMING_CFG_2 register. This will typically be set to the same
delay as in DDR_SDRAM_CLK_CNTL[CLK_ADJUST]. The timing parameters listed in the table assume that these 2
parameters have been set to the same adjustment value. See the
MPC8548E PowerQUICC III Integrated Processor
Reference Manual for a description and understanding of the timing modifications enabled by use of these bits.
5. 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 microprocessor.
6. All outputs are referenced to the rising edge of MCK[
n] at the pins of the microprocessor. Note that tDDKHMP follows the
symbol conventions described in note 1.
Table 19. DDR SDRAM Output AC Timing Specifications (continued)
At recommended operating conditions.
Parameter
Symbol1
Min
Max
Unit
Notes
tDDKHMHmax) = 0.6 ns
MDQS
MCK[
n]
MCK[
n]
tMCK
tDDKHMH(min) = –0.6 ns
MDQS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC8548VUAUJ | 功能描述:微處理器 - MPU PQ38 8548 PB-FREE 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 |
| MPC8548VUAVH | 制造商:Freescale Semiconductor 功能描述:MPU RISC 32BIT CMOS 1.5GHZ 1.8V/2.5V/3.3V 783FCCBGA - Bulk |
| MPC8548VUAVK | 制造商:Freescale Semiconductor 功能描述:PQ38 8548 PB-FREE - Bulk |
| MPC8555CDS | 功能描述:開(kāi)發(fā)板和工具包 - 其他處理器 CDS EVAL BOARD FOR 8555 RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評(píng)估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MPC8555CDS | 制造商:Freescale Semiconductor 功能描述:CDS EVAL BOARD FOR 8555 |
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