參數(shù)資料
型號(hào): MCF5251CVM140
廠商: FREESCALE SEMICONDUCTOR INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, 140 MHz, MICROPROCESSOR, PBGA225
封裝: LEAD FREE, MAPBGA-225
文件頁(yè)數(shù): 7/34頁(yè)
文件大?。?/td> 674K
代理商: MCF5251CVM140
Electrical Specifications
MCF5251 ColdFire Processor Data Sheet: Technical Data, Rev. 3
Freescale Semiconductor
15
Figure 3 and Table 11 provide the clock timing diagram and timing parameters.
Figure 3. Clock Timing Definition
NOTE
Signals shown in Figure 3 are in relation to the SYSCLK clock. No
relationship between signals is implied or intended.
Table 11 shows the clock timing parameters.
Table 11. Clock Timing Parameters
ID
Characteristic
140 MHz CPU
Units
Min
Max
CRIN Frequency with external oscillator
5.00
33.86
MHz
CRIN Frequency with internal oscillator
5
16.94
MHz
C5
PSTCLK cycle time
7
ns
C6
PSTCLK duty cycle
40
60
%
C7
BCLK cycle time
14.0
ns
C8
BCLK duty cycle
35
65
%
CRIN
C5
C7
C8
C6
PSTCLK
BCLK
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