MC9328MX21SCVK Freescale Semiconductor, MC9328MX21SCVK Datasheet - Page 46

• Manufacturer Part Number: MC9328MX21SCVK
• Description: IC MCU I.MX21 266MHZ 289-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX21r

Specifications of MC9328MX21SCVK

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: 1-Wire, EBI/EMI, I²C, IrDA, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
• Peripherals: DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 192
• Program Memory Type: ROMless
• Voltage - Supply (vcc/vdd): 1.45 V ~ 3.3 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 289-MAPBGA
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Ram Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Compliant

Specifications
3.14
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.
46
Ref No.
2a
2b
3a
3b
4a
4b
1
Pulse-Width Modulator
System CLK frequency
Clock high time
Clock low time
Clock fall time
Clock
Output delay time
Output setup time
ise time
System Clock
Parameter
PWM Output
r
Table 30. PWM Output Timing Parameters
Figure 37. PWM Output Timing Diagram
MC9328MX21 Technical Data, Rev. 3.4
Minimum
2a
12.29
9.91
9.37
8.71
0
–
–
4a
1.8 V ± 0.1 V
2b
Maximum
0.5
0.5
45
–
–
–
–
1
3a
Minimum
12.29
9.91
3.61
3.03
0
–
–
3.0 V ± 0.3 V
3b
4b
Maximum
Freescale Semiconductor
0.5
0.5
45
–
–
–
–
MHz
Unit
ns
ns
ns
ns
ns
ns