DSPIC33FJ32GP202-I/SO Microchip dsPIC33F 16-Bit Digital Signal Controller 40MIPS 32KB Flash General Purpose PWM ADC SOIC-28

DSPIC33FJ32GP202-I/SO Product Overview

The DSPIC33FJ32GP202-I/SO is a Microchip general-purpose 16-bit Digital Signal Controller (DSC) in a 28-lead SOIC package, designed for 3.3V embedded control applications requiring rich peripherals and high-speed processing. Based on the dsPIC33F core running at 40 MIPS, the DSPIC33FJ32GP202-I/SO integrates 32KB Flash and 4KB SRAM, providing ample space for medium-scale program code and data buffering. On-chip peripherals include five 16-bit timers, four input captures, four output compares/PWM, and a 10-bit ADC (up to 1.1 Msps, up to 12 analog input channels). Communication interfaces provide 2× UART, 1× SPI, and 1× 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 narrow SOIC-28 package, the DSPIC33FJ32GP202-I/SO is ideal for general embedded control, industrial automation, sensor interfaces, consumer electronics, and real-time systems needing efficient DSP capability.

DSPIC33FJ32GP202-I/SO Core Features

Processor Core: The DSPIC33FJ32GP202-I/SO features a 16-bit dsPIC33F core, 40 MIPS, DSP-enhanced instruction set.

Program Memory: The DSPIC33FJ32GP202-I/SO provides 32KB Flash.

Data Memory: The DSPIC33FJ32GP202-I/SO includes 4KB SRAM.

Timers & Signal Processing: The DSPIC33FJ32GP202-I/SO offers 5× 16-bit timers, 4× input capture, 4× output compare/PWM.

Analog Front-End: The DSPIC33FJ32GP202-I/SO integrates a 10-bit ADC (1.1 Msps, up to 12 channels).

Communication Interfaces: The DSPIC33FJ32GP202-I/SO supports 2× UART, 1× SPI, 1× I2C, with Peripheral Pin Select (PPS).

System Management: The DSPIC33FJ32GP202-I/SO includes a watchdog timer, BOR/POR, on-chip oscillator.

General Purpose I/O: The DSPIC33FJ32GP202-I/SO provides up to 21 programmable I/O pins.

Power & Package: The DSPIC33FJ32GP202-I/SO operates from 3.0V – 3.6V, in a SOIC-28 package, industrial -40°C to +85°C.

DSPIC33FJ32GP202-I/SO Applications

Industrial Automation: The DSPIC33FJ32GP202-I/SO is suitable for sensor interfaces, process control, data acquisition systems, PLC expansion modules.

Consumer Electronics: The DSPIC33FJ32GP202-I/SO can be used in smart appliance control boards, HMI, audio processing.

IoT Nodes: The DSPIC33FJ32GP202-I/SO serves edge controllers and protocol converters needing multiple UART/SPI/I2C ports.

General Embedded Control: The DSPIC33FJ32GP202-I/SO is a high-performance single-chip replacement for multiple 8/16-bit MCUs.

DSPIC33FJ32GP202-I/SO Key Advantages

40 MIPS DSP Performance: The DSPIC33FJ32GP202-I/SO’s single-cycle MAC and DSP instructions efficiently handle digital filtering, FFT, and closed-loop control, far outperforming standard 16-bit MCUs.

Large Memory: The DSPIC33FJ32GP202-I/SO provides 32KB Flash and 4KB SRAM, generous space for complex logic, real-time data buffers, and communication stacks.

Flexible Peripheral Mix: The DSPIC33FJ32GP202-I/SO features five timers, 4× input capture/output compare, plus PPS flexible pin mapping to adapt to diverse control needs.

Dual UART: The DSPIC33FJ32GP202-I/SO’s two independent UARTs allow simultaneous debug output and external communication (e.g., Bluetooth, RS-485).

3.3V Low-Voltage Operation: The DSPIC33FJ32GP202-I/SO is level-compatible with mainstream MCUs, DSPs, and digital logic, eliminating extra level shifters.

Compact SOIC-28 Package: The DSPIC33FJ32GP202-I/SO is easy to hand-solder and suitable for automated production, fitting space-constrained boards.

Mature Development Tools: Free MPLAB X IDE and XC16 compiler, with MCC and rich peripheral libraries for faster development on the DSPIC33FJ32GP202-I/SO.

Long-Term Availability: The DSPIC33FJ32GP202-I/SO is a mature dsPIC33F family product with stable long-term supply commitment.

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FAQ

1. What is the DSPIC33FJ32GP202-I/SO?
   The DSPIC33FJ32GP202-I/SO is a Microchip general-purpose 16-bit Digital Signal Controller (DSC) for 3.3V embedded control and signal processing.
   • Package: 28-lead SOIC
   • Performance: 40 MIPS
   • Memory: 32KB Flash, 4KB SRAM
   • ADC: 10-bit, 1.1 Msps, 12 channels
   • Communication: 2× UART, 1× SPI, 1× I2C (PPS)
   • Timers/Control: 5× 16-bit timers, 4× input capture, 4× output compare
   • Supply: 3.0V – 3.6V
   • Temperature: Industrial -40°C to +85°C
2. What does the “-I/SO” suffix mean?
   
   • -I: Industrial temperature range (-40°C to +85°C) for the DSPIC33FJ32GP202-I/SO.
   • /SO: 28-lead SOIC narrow-body package.
3. How does it differ from the DSIC33FJ32MC102/GS502?
   
   • Positioning: The DSPIC33FJ32GP202-I/SO is general-purpose; MC102 targets motor control; GS502 targets digital power.
   • Memory: The DSPIC33FJ32GP202-I/SO has 32KB Flash and 4KB SRAM, more than double the MC102/GS502 (16KB/1-2KB).
   • PWM: The DSPIC33FJ32GP202-I/SO offers 4 output compare/PWM, no dedicated motor-control PWM module.
   • UART: The DSPIC33FJ32GP202-I/SO has 2 UARTs vs. 1 on MC102/GS502.
   • Use cases: The DSPIC33FJ32GP202-I/SO excels in communication-heavy and general control; MC/GS target specific power/motion tasks.
4. What is the ADC speed and resolution?
   
   • Resolution: 10-bit.
   • Maximum sampling rate: 1.1 Msps, up to 12 analog input channels.
5. Why does it have 2 UARTs? What are the practical benefits?
   
   • The DSPIC33FJ32GP202-I/SO can simultaneously use debug logging and external communication (e.g., Bluetooth, RS-485, Wi-Fi module).
   • The DSPIC33FJ32GP202-I/SO is suitable for protocol converters or gateway devices needing dual serial ports.
6. What development tools and software are supported?
   
   • Free MPLAB X IDE and MPLAB XC16 compiler.
   • Hardware debuggers: PICkit, ICD series.
   • Software: MPLAB Code Configurator (MCC), DSP libraries, peripheral libraries for the DSPIC33FJ32GP202-I/SO.
7. What is the supply voltage? Why use 3.3V?
   
   • The DSPIC33FJ32GP202-I/SO operates from 3.0V to 3.6V, nominal 3.3V.
   • 3.3V enables direct connection to mainstream MCUs, sensors, and digital logic without extra level shifters.
8. Can it be used to control motors?
   It lacks a dedicated motor-control PWM module (no complementary outputs or dead-time insertion). However, the DSPIC33FJ32GP202-I/SO’s 4 output compares can generate simple PWM signals for brushed DC or stepper motors (with external drivers). For high-performance BLDC/PMSM control, the dsPIC33F MC series is recommended.
9. What is the SOIC-28 package size?
   Standard 28-lead SOIC narrow-body package, body width approx. 7.5 mm, 1.27 mm pin pitch – easy to hand-solder and suitable for automated assembly.
10. Is the DSPIC33FJ32GP202 suitable for new designs?
    The DSPIC33FJ32GP202-I/SO is a mature, reliable general-purpose DSC with 40 MIPS DSP performance, 32KB Flash, dual UARTs, and rich peripherals. It offers a cost-effective solution for industrial automation, communication gateways, and consumer electronics, backed by Microchip's long-term availability.