DSPIC33FJ12GP202-I/ML Microchip Technology, DSPIC33FJ12GP202-I/ML Datasheet - Page 27

• Manufacturer Part Number: DSPIC33FJ12GP202-I/ML
• Description: IC DSPIC MCU/DSP 12K 28QFN
• Manufacturer: Microchip Technology
• Series: dsPIC™ 33Fr

Specifications of DSPIC33FJ12GP202-I/ML

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 40 MIPs
• Connectivity: I²C, IrDA, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 12KB (12K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Core Frequency: 40MHz
• Core Supply Voltage: 2.75V
• Embedded Interface Type: I2C, JTAG, SPI, UART
• No. Of I/o's: 21
• Flash Memory Size: 12KB
• Supply Voltage Range: 3V To 3.6V
• Package: 28QFN EP
• Device Core: dsPIC
• Family Name: dsPIC33
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 21
• Interface Type: I2C/SPI/UART
• On-chip Adc: 10-chx10-bit|10-chx12-bit
• Number Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164336 - MODULE SOCKET FOR PM3 28/44QFNDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

The PWM module has the following features:
• Dedicated time base supports T
• Two output pins (pair) for each PWM generator
• Complementary or independent operation for
• Hardware dead-time generators for
• Output pin polarity defined by nonvolatile device
• Multiple output modes:
• Manual override register for PWM output pins
• Hardware Fault input pins with programmable
• Trigger for synchronizing A/D samples and
• Each output pin associated with the PWM can be
TABLE 8-1:
© 2005 Microchip Technology Inc.
25 ns (40 MHz)
25 ns (40 MHz)
50 ns (20 MHz)
50 ns (20 MHz)
100 ns (10 MHz)
100 ns (10 MHz)
200 ns (5 MHz)
200 ns (5 MHz)
* PWM frequencies will be 1/2 the value indicated for center-aligned operation.
resolution
each output pin pair
Complementary mode
configuration bits
- Edge-Aligned mode
- Center-Aligned mode
- Center-Aligned mode with double updates
- Single Event mode
function
conversions to PWM timing
individually enabled
T
CY
(F
CY
EXAMPLE PWM FREQUENCIES AND RESOLUTIONS, 1:1 PRESCALER
)
CY
/2 PWM edge
PTPER Value
0x7FFF
0x03FF
0x7FFF
0x01FF
0x7FFF
0x00FF
0x7FFF
0x007F
Preliminary
8.3.1
The PWM time base is provided by a 15-bit timer with
a prescaler and postscaler. The PWM time base can be
configured for four different modes of operation:
• Free-Running mode
• Single-Shot mode
• Continuous Up/Down Count mode
• Continuous Up/Down Count mode with interrupts
The Up/Down Counting modes support center-aligned
PWM generation. The Single-Shot mode allows the
PWM module to support pulse control of certain
Electronically Commutated Motors (ECMs).
Table 8-1 lists the frequencies and resolutions that can
be attained as a function of the dsPIC33F device
instruction cycle frequency.
PWM Resolution
for double updates
16 bits
16 bits
10 bits
16 bits
16 bits
11 bits
9 bits
8 bits
PWM TIME BASE
dsPIC33F
PWM Frequency*
39.1 kHz
39.1 kHz
39.1 kHz
39.1 kHz
1220 Hz
610 Hz
153 Hz
305 Hz
DS70155C-page 25