MC9328MXS Datasheet, PDF (55/72 Pages) List of Unclassifed Manufacturers – Advance Information

Specifications
3.12 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. Its timing diagram is shown in Figure 45 and the parameters are
listed in Table 25.
System Clock
PWM Output
2a
2b
4a
1
3b
3a
4b
Figure 45. PWM Output Timing Diagram
Table 25. PWM Output Timing Parameter Table
Ref
No.
Parameter
1
System CLK frequency¹
2a Clock high time¹
2b Clock low time¹
3a Clock fall time¹
3b Clock rise time¹
4a Output delay time¹
4b Output setup time¹
1. C_L of PWMO = 30 pF
1.8 ± 0.1 V
Minimum
0
3.3
7.5
–
–
5.7
5.7
Maximum
87
–
–
5
6.67
–
–
3.0 ± 0.3 V
Minimum
0
5/10
5/10
–
–
5
5
Maximum
100
–
–
5/10
5/10
–
–
Unit
MHz
ns
ns
ns
ns
ns
ns
MC9328MXS Advance Information, Rev. 0
Freescale Semiconductor
55