DSPIC33FJ16MC304-I/PT Microchip dsPIC33F 16-Bit Digital Signal Controller 40MIPS 16KB Flash Motor PWM ADC TQFP-44

DSPIC33FJ16MC304-I/PT Product Overview

The DSPIC33FJ16MC304-I/PT is a Microchip 16-bit Digital Signal Controller (DSC) in a 44-lead TQFP package, designed for low-voltage (3.3V) motor control and embedded applications requiring more I/Os and analog channels. Based on the dsPIC33F core running at 40 MIPS, the DSPIC33FJ16MC304-I/PT integrates 16KB Flash and 1KB SRAM. On-chip motor-control peripherals include a 6-channel PWM module configurable as 3 complementary pairs with programmable dead-time and fault protection. The analog front-end features a 10-bit ADC (up to 1.1 Msps, up to 9 analog input channels) and three analog comparators for multi-channel current/voltage sensing and fast fault response. Communication interfaces include UART, SPI, and I2C, with Peripheral Pin Select (PPS) for flexible digital pin mapping. Operating from 3.0V to 3.6V with an industrial temperature range of -40°C to +85°C, in a TQFP-44 package. The DSPIC33FJ16MC304-I/PT is ideal for brushless DC (BLDC) motor drives, multi-channel sensor acquisition, small servo systems, and any compact 3.3V motor-control system requiring real-time performance and enhanced connectivity.

DSPIC33FJ16MC304-I/PT Core Features

Processor Core: The DSPIC33FJ16MC304-I/PT features a 16-bit dsPIC33F core, 40 MIPS, DSP-enhanced instruction set.

Program Memory: The DSPIC33FJ16MC304-I/PT provides 16KB Flash.

Data Memory: The DSPIC33FJ16MC304-I/PT includes 1KB SRAM.

Motor Control PWM: The DSPIC33FJ16MC304-I/PT offers a 6-channel PWM, configurable as 3 complementary pairs with programmable dead-time and fault protection.

Analog Front-End: The DSPIC33FJ16MC304-I/PT integrates a 10-bit ADC (1.1 Msps, up to 9 channels), 3 analog comparators.

Communication Interfaces: The DSPIC33FJ16MC304-I/PT supports 1× UART, 1× SPI, 1× I2C, with Peripheral Pin Select (PPS).

Signal Processing & Timers: The DSPIC33FJ16MC304-I/PT provides input capture, output compare, multiple 16-bit timers.

System Management: The DSPIC33FJ16MC304-I/PT includes a watchdog timer, BOR/POR, on-chip oscillator.

Power & Package: The DSPIC33FJ16MC304-I/PT operates from 3.0V – 3.6V, in a TQFP-44 package, industrial -40°C to +85°C.

DSPIC33FJ16MC304-I/PT Applications

Motor Control: The DSPIC33FJ16MC304-I/PT is suitable for BLDC motor drives, PMSM, stepper motors, small servo systems.

Home Appliance & Industrial: The DSPIC33FJ16MC304-I/PT can be used in air-conditioner fans, water pumps, compressor drives, power tools, valve actuators.

Multi-Channel Acquisition: The DSPIC33FJ16MC304-I/PT serves sensor concentrators, process controllers requiring multiple analog inputs and motor control.

General Real-Time Control: The DSPIC33FJ16MC304-I/PT is ideal for embedded systems needing motor PWM, extra I/Os, and 3.3V operation.

DSPIC33FJ16MC304-I/PT Key Advantages

Dedicated Motor Control PWM: The DSPIC33FJ16MC304-I/PT's 6-channel/3 complementary pair outputs can directly drive a 3-phase BLDC/PMSM motor, with dead-time insertion and fault protection ensuring power-stage safety.

More Analog Channels: The DSPIC33FJ16MC304-I/PT provides a 9-channel 10-bit ADC that supports multi-channel current, voltage, and sensor signal acquisition, ideal for motor drives monitoring multiple analog inputs.

3.3V Low-Voltage Operation: The DSPIC33FJ16MC304-I/PT is level-compatible with mainstream MCUs, DSPs, and digital isolators, eliminating external level shifters and simplifying system interconnect.

TQFP-44 Package: The DSPIC33FJ16MC304-I/PT provides more I/Os and analog channels in a medium-density footprint, suitable for automated production and easier PCB layout.

40 MIPS DSP Performance: The DSPIC33FJ16MC304-I/PT's single-cycle MAC and DSP instructions efficiently handle sensorless FOC, PI control loops, and digital filtering.

Flexible Pin Assignment (PPS): The DSPIC33FJ16MC304-I/PT allows remapping of UART/SPI/I2C peripherals to different pins, optimizing PCB layout and reducing routing complexity.

Mature Development Tools: Free MPLAB X IDE and XC16 compiler, with motor-control libraries and MCC for faster development of the DSPIC33FJ16MC304-I/PT.

Long-Term Availability: The DSPIC33FJ16MC304-I/PT is a mature dsPIC33F family product with stable long-term supply commitment.

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FAQ

1. What is the DSPIC33FJ16MC304-I/PT?
   The DSPIC33FJ16MC304-I/PT is a Microchip 16-bit Digital Signal Controller (DSC) designed for 3.3V motor control and multi-channel analog acquisition.
   • Package: 44-lead TQFP
   • Performance: 40 MIPS
   • Memory: 16KB Flash, 1KB SRAM
   • Motor PWM: 6-channel (3 complementary pairs), programmable dead-time
   • ADC: 10-bit, 1.1 Msps, 9 channels
   • Comparators: 3 analog comparators
   • Communication: UART, SPI, I2C with PPS
   • Supply: 3.0V – 3.6V
   • Temperature: Industrial -40°C to +85°C
2. What does the “-I/PT” suffix mean?
   
   • -I: Industrial temperature range (-40°C to +85°C).
   • /PT: 44-lead TQFP package of the DSPIC33FJ16MC304-I/PT.
3. How does it differ from the DSPIC33FJ16MC102?
   
   • Package: The DSPIC33FJ16MC304-I/PT is 44-lead TQFP; MC102 is 28-lead SOIC.
   • ADC channels: The DSPIC33FJ16MC304-I/PT provides 9 analog inputs vs. 6 on the MC102.
   • I/Os: The DSPIC33FJ16MC304-I/PT offers more general-purpose I/Os for additional peripheral connections.
   • Both share identical Flash, SRAM, PWM, comparators, and communication interfaces.
4. How many PWM outputs does it have? How many motors can it control?
   
   • The DSPIC33FJ16MC304-I/PT integrates a 6-channel motor control PWM, configurable as 3 complementary pairs.
   • It can directly drive one 3-phase BLDC/PMSM motor, or control multiple brushed DC motors.
   • The DSPIC33FJ16MC304-I/PT has no Quadrature Encoder Interface (QEI); suitable for sensorless or Hall-sensor feedback schemes.
5. Does it support sensorless FOC?
   The DSPIC33FJ16MC304-I/PT supports sensorless FOC. The 40 MIPS performance and DSP instruction set can run sensorless Field-Oriented Control (FOC) algorithms, using the ADC to sample phase currents and estimate rotor position via back-EMF.
6. What is the supply voltage? Why use 3.3V?
   
   • The DSPIC33FJ16MC304-I/PT operates from 3.0V to 3.6V, nominal 3.3V.
   • 3.3V enables direct connection to mainstream MCUs, digital isolators, and CMOS logic without extra level shifters, simplifying design and reducing cost.
7. What is the ADC speed and resolution?
   
   • The DSPIC33FJ16MC304-I/PT features a 10-bit ADC with a maximum sampling rate of 1.1 Msps, suitable for multi-channel motor phase current, DC bus voltage, and sensor signal sampling.
8. What development tools and software are supported?
   
   • The DSPIC33FJ16MC304-I/PT is supported by free MPLAB X IDE and MPLAB XC16 compiler.
   • Hardware debuggers: PICkit, ICD series.
   • Software: MPLAB Code Configurator (MCC), motor-control libraries (including sensorless FOC reference code) for the DSPIC33FJ16MC304-I/PT.
9. What is the TQFP-44 package size?
   Standard 44-lead TQFP, body size approx. 10mm × 10mm, 0.8mm pin pitch – suitable for medium-density layouts and automated assembly of the DSPIC33FJ16MC304-I/PT.
10. Is the DSPIC33FJ16MC304 suitable for new designs?
    The DSPIC33FJ16MC304-I/PT is a mature, cost-effective motor control DSC with 3.3V operation, 6-channel PWM, 9-channel ADC, and TQFP-44 package. Ideal for BLDC drives and multi-channel sensor applications. Backed by Microchip's long-term availability.