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| 型號(hào)： | MPC8378EVRALG |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 42/127頁(yè) |
| 文件大小： | 0K |
| 描述： | MPU PWRQUICC II 667MHZ 689TEPBGA |
| 產(chǎn)品培訓(xùn)模塊： | MPC837x PowerQUICC II Pro Processors |
| 視頻文件： | Introduction to the MPC837x Family |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 系列： | MPC83xx |
| 處理器類型： | 32-位 MPC83xx PowerQUICC II Pro |
| 速度： | 667MHz |
| 電壓： | 1V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 689-BBGA 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 689-TEPBGA II（31x31） |
| 包裝： | 托盤 |
| 配用： | MPC8377E-RDBA-ND - BOARD REF DES MPC8377 REV 2.1 MPC8377E-MDS-PB-ND - BOARD MODULAR DEV SYSTEM |
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MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
Freescale Semiconductor
21
The minimum frequency for DDR2 is 250 MHz data rate (125 MHz clock), 167 MHz data rate (83 MHz
clock) for DDR1. This figure shows the DDR1 and DDR2 SDRAM output timing for the MCK to MDQS
skew measurement (tDDKHMH).
Figure 4. DDR Timing Diagram for tDDKHMH
MDQS epilogue end
tDDKHME
–0.6
0.6
ns
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//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 DQSS override bits in the TIMING_CFG_2 register. 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
MPC8379E PowerQUICC II Pro Host 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, 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.
7. Clock Control register is set to adjust the memory clocks by 1/2 the applied cycle.
8. See AN3665, “MPC837xE Design Checklist,” for proper DDR termination.
Table 21. DDR1 and DDR2 SDRAM Output AC Timing Specifications (continued)
Parameter
Symbol1
Min
Max
Unit
Note
MDQS
MCK[n]
tMCK
tDDKHMHmax) = 0.6 ns
tDDKHMH(min) = –0.6 ns
MDQS
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| MPC8378EVRAJF | MPU PWRQUICC II 533MHZ 689TEPBGA |
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| MPC8378EVRAGD | MPU PWRQUICC II 400MHZ 689TEPBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC8378EVRALGA | 功能描述:微處理器 - MPU 8378 PBGA ST PbFr 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 |
| MPC8378EVRANDA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8378EVRANFA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8378EVRANG | 功能描述:微處理器 - MPU 837X Encyrpted 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 |
| MPC8378EVRANGA | 功能描述:微處理器 - MPU 8378 PBGA ST PbFr 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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