參數(shù)資料
型號： MPC5200BV400
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 400 MHz, MICROPROCESSOR, PBGA272
封裝： 27 X 27 MM, 1.27 MM PITCH, PLASTIC, BGA-272
文件頁數(shù)： 17/80頁
文件大?。?/td> 6728K
代理商： MPC5200BV400
MPC5200 Data Sheet, Rev. 4
Electrical and Thermal Characteristics
Freescale Semiconductor
24
Figure 8. Read Data sample window depend on the number of Tap delay
The position of the tdata_valid window is depend on the clock / data flight time on the board. The MDQS
signal indicate if the read data are valid. If the controller is not able to detect a valid MDQS signal on the
sample time (sample position A) then the controller will look for valid MDQS / data on the next edge of
the MEM_CLK signal (sample position B). Depend on the board travel time, different working tap delay
configurations are possible. For a fast connection the data will be sampled with the next edge of
MEM_CLK, this shows Figure 8, sample position A. With a longer connection maybe two sample
positions are possible. Figure 8 shows a example with two working sample position (A and B). With a
bigger board delay only sample position B will be possible.
The equation below shows how to calculate the upper and lower limit. The right Tap delay number is
selected, when the possible max and min sample timing is within the memory data valid window.
tdata_sample_max = max((1.55 + TapNum * 0.095), (1.74 + TapNum * 0.045))
tdata_sample_min = min((1.55 + TapNum * 0.095), (1.74 + TapNum * 0.045))
delay [ns]
31
0
1.55
4.59
Possible sample
time over PVT for one
Memory Data valid window
selected Tap delay
Tap delay number
8.34
Working Tap Delay range
for sample position A
Working Tap Delay range
for sample position B
tdata_valid_min
tdata_valid_max
tdata_sample_min
selected Tap delay
相關(guān)PDF資料
PDF描述
MPC5200CBV266R2 266 MHz, MICROPROCESSOR, PBGA272
MPC5200CBV266BR2 266 MHz, MICROPROCESSOR, PBGA272
MPC5200BV400B 400 MHz, MICROPROCESSOR, PBGA272
MPC5200CBV400B 400 MHz, MICROPROCESSOR, PBGA272
MPC5200BV400BR2 400 MHz, MICROPROCESSOR, PBGA272
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC5200CBV266 功能描述:微處理器 - MPU 266MHz 760MIPS 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 最大時鐘頻率:536 MHz 程序存儲器大小: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
MPC5200CBV400 功能描述:微處理器 - MPU 400MHz 760MIPS 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 最大時鐘頻率:536 MHz 程序存儲器大小: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
MPC5200CBV400B 制造商:Freescale Semiconductor 功能描述:
MPC5200CVR266 功能描述:微處理器 - MPU NO-PB IND’L 5200 266MHZ 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 最大時鐘頻率:536 MHz 程序存儲器大小: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
MPC5200CVR400 功能描述:微處理器 - MPU NO-PB IND’L 5200 400MHZ 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 最大時鐘頻率:536 MHz 程序存儲器大小: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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