參數(shù)資料
型號(hào): MC9328MX21CVG
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 266 MHz, MICROPROCESSOR, PBGA289
封裝: 14 X 14 MM, 1.41 MM HEIGHT, 0.65 MM PITCH, MAPBGA-289
文件頁數(shù): 49/106頁
文件大?。?/td> 1932K
代理商: MC9328MX21CVG
Specifications
MC9328MX21 Product Preview, Rev. 1.1
Freescale Semiconductor
47
3.14
Pulse-Width Modulator
The PWM can be programmed to select one of two clock signals as its source frequency. The selected
clock signal is passed through a divider and a prescaler before being input to the counter. The output is
available at the pulse-width modulator output (PWMO) external pin.
Figure 37. PWM Output Timing Diagram
17
tRC
50
18
tCEA
45
19
tREA
30
20
tRHZ
30
21
tCHZ
20
22
tOH
15
23
tREH
15
24
tIR
0
25
tWHR
60
Table 28. PWM Output Timing Parameter Table
Ref
No.
Parameter
1.8V +/- 0.10V
3.0V +/- 0.30V
Unit
Minimum
Maximum
Minimum
Maximum
1
System CLK frequency1
045045
MHz
2a
Clock high time1
12.29
12.29
ns
2b
Clock low time1
9.91
–9.91–
ns
3a
Clock fall time1
–0.5–0.5
ns
3b
Clock rise time1
–0.5–0.5
ns
Table 27. Timing Characteristics (Continued)
Number
Timing
Parameter
Minimum
Maximum
System Clock
2a
1
PWM Output
3b
2b
3a
4b
4a
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC9328MX21CVH 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:i.MX family of microprocessors
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