參數資料
型號: MPC5200CVR400B
廠商: Freescale Semiconductor
文件頁數: 17/80頁
文件大?。?/td> 0K
描述: IC MPU 32BIT 400MHZ 272-PBGA
特色產品: MPC5200 Microcontroller
標準包裝: 40
系列: MPC52xx
核心處理器: e300
芯體尺寸: 32-位
速度: 400MHz
連通性: CAN,EBI/EMI,以太網,I²C,IrDA,J1850,SPI,UART/USART,USB
外圍設備: AC'97,DMA,I²S,POR,PWM,WDT
輸入/輸出數: 56
程序存儲器類型: 外部程序存儲器
RAM 容量: 16K x 8
電壓 - 電源 (Vcc/Vdd): 1.42 V ~ 1.58 V
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 272-BBGA
包裝: 托盤
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
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MPC5200CVR400B 制造商:Freescale Semiconductor 功能描述:IC, 32BIT PROCESSOR
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MPC5200VR400 功能描述:微處理器 - MPU NO-PB COMM 5200 400MHZ RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324