DSPIC33FJ64GP706-I/PT Microchip dsPIC33F 16-Bit Digital Signal Controller 40MIPS 64KB Flash General Purpose PWM ADC TQFP-64

DSPIC33FJ64GP706-I/PT Product Overview

The DSPIC33FJ64GP706-I/PT is a Microchip high-performance general-purpose 16-bit Digital Signal Controller (DSC) in a 64-lead TQFP package, targeting complex 3.3V embedded control applications that require large memory and multiple communication interfaces. Based on the dsPIC33F core running at 40 MIPS, the DSPIC33FJ64GP706-I/PT integrates 64KB Flash and 16KB SRAM, providing ample space for real-time algorithms, data buffering, and protocol stacks. On-chip peripherals of the DSPIC33FJ64GP706-I/PT include five 16-bit timers, four input captures, four output compares/PWM, a 10-bit ADC (up to 1.1 Msps, up to 16 analog input channels), and four analog comparators. Communication interfaces on the DSPIC33FJ64GP706-I/PT offer 2× UART, 2× SPI, and 2× I2C, all with Peripheral Pin Select (PPS) for flexible pin assignment. The DSPIC33FJ64GP706-I/PT operates from 3.0V to 3.6V with an industrial temperature range of -40°C to +85°C, in a TQFP-64 package. The DSPIC33FJ64GP706-I/PT is ideal for high-end industrial control, protocol converters, and multi-sensor systems that demand strong DSP capability, multiple communication ports, and abundant I/Os.

DSPIC33FJ64GP706-I/PT Core Features

Processor Core: The DSPIC33FJ64GP706-I/PT features a 16-bit dsPIC33F core running at 40 MIPS, with a DSP-enhanced instruction set

Program Memory: The DSPIC33FJ64GP706-I/PT provides 64KB Flash

Data Memory: The DSPIC33FJ64GP706-I/PT includes 16KB SRAM

Timers & Signal Processing: The DSPIC33FJ64GP706-I/PT offers 5× 16-bit timers, 4× input capture, and 4× output compare/PWM

Analog Front-End: The DSPIC33FJ64GP706-I/PT integrates a 10-bit ADC (1.1 Msps, up to 16 channels) and 4 analog comparators

Communication Interfaces: The DSPIC33FJ64GP706-I/PT supports 2× UART, 2× SPI, and 2× I2C, with Peripheral Pin Select (PPS)

System Management: The DSPIC33FJ64GP706-I/PT includes a watchdog timer, BOR/POR, and on-chip oscillator

General Purpose I/O: The DSPIC33FJ64GP706-I/PT provides up to 53 programmable I/O pins

Power & Package: The DSPIC33FJ64GP706-I/PT operates from 3.0V – 3.6V, in a TQFP-64 package, industrial -40°C to +85°C

DSPIC33FJ64GP706-I/PT Applications

Industrial Automation: The DSPIC33FJ64GP706-I/PT excels in sensor concentrators, process controllers, distributed I/O modules, and multi-axis motion control assistance

Communication Protocol Conversion: The DSPIC33FJ64GP706-I/PT is ideal for multi-UART/SPI/I2C bridges and industrial Ethernet gateway co-processors

Digital Signal Processing: The DSPIC33FJ64GP706-I/PT handles real-time audio processing, digital filtering, FFT analysis, and software-defined radio front-ends

General Complex Real-Time Control: The DSPIC33FJ64GP706-I/PT suits algorithm-intensive systems needing large memory, multiple communication ports, and multi-channel analog acquisition

DSPIC33FJ64GP706-I/PT Key Advantages

Large Memory + Multi-Communication Ports: The DSPIC33FJ64GP706-I/PT's 64KB Flash and 16KB SRAM simultaneously host complex algorithms, real-time data buffers, and multi-protocol stacks; its 2× UART, 2× SPI, and 2× I2C with PPS easily handle multiple peripheral connections.

Enhanced Analog Front-End: The DSPIC33FJ64GP706-I/PT's 16-channel 10-bit ADC paired with four analog comparators provides a complete single-chip solution for multi-sensor acquisition and fast fault response.

Flexible Signal Generation & Measurement: The DSPIC33FJ64GP706-I/PT's four output compares/PWM generate multiple independent PWM signals; its four input captures handle frequency/pulse-width measurement, meeting general control and simple motion control needs.

TQFP-64 High I/O Count: The DSPIC33FJ64GP706-I/PT offers up to 53 I/O pins, reducing reliance on external I/O expanders and simplifying PCB design.

3.3V Low-Voltage Operation: The DSPIC33FJ64GP706-I/PT is level-compatible with mainstream MCUs, DSPs, and digital logic, eliminating extra level shifters and lowering BOM cost.

Mature Development Tools: The DSPIC33FJ64GP706-I/PT is supported by free MPLAB X IDE and XC16 compiler, with MCC, DSP libraries, and peripheral libraries shortening development cycles.

Long-Term Availability: The DSPIC33FJ64GP706-I/PT is a mature dsPIC33F family product with a stable long-term supply commitment.

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FAQ

1. What is the DSPIC33FJ64GP706-I/PT?
   The DSPIC33FJ64GP706-I/PT is a Microchip high-performance general-purpose 16-bit Digital Signal Controller (DSC) for 3.3V complex embedded control and signal processing.
   • Package: 64-lead TQFP for the DSPIC33FJ64GP706-I/PT
   • Performance: 40 MIPS
   • Memory: 64KB Flash, 16KB SRAM
   • Timers/Control: 5× 16-bit timers, 4× input capture, 4× output compare/PWM
   • ADC: 10-bit, 1.1 Msps, 16 channels
   • Comparators: 4
   • Communication: 2× UART, 2× SPI, 2× I2C (PPS)
   • I/Os: Up to 53
   • Supply: 3.0V – 3.6V
   • Temperature: Industrial -40°C to +85°C
2. What does the “-I/PT” suffix mean on the DSPIC33FJ64GP706-I/PT?
   
   • -I: Industrial temperature range (-40°C to +85°C) for the DSPIC33FJ64GP706-I/PT.
   • /PT: 64-lead TQFP package for the DSPIC33FJ64GP706-I/PT.
3. How does the DSPIC33FJ64GP706-I/PT differ from the DSPIC33FJ64GP206 and GP706A?
   
   • vs GP206: The DSPIC33FJ64GP706-I/PT adds one more analog comparator (4 vs. 3), otherwise identical in memory, communication, and peripheral channels, suitable for applications needing more comparators.
   • vs GP706A: The DSPIC33FJ64GP706-I/PT has no DMA controller and offers 4 capture/compare channels (GP706A has 4-channel DMA and 9 capture/9 compare). The DSPIC33FJ64GP706-I/PT fits standard high-performance applications that don't require DMA or extensive timing channels.
   • All three share 64KB Flash, 16KB SRAM, and are package and I/O compatible with the DSPIC33FJ64GP706-I/PT.
4. Does the DSPIC33FJ64GP706-I/PT have DMA?
   No. The DSPIC33FJ64GP706-I/PT does not include a DMA controller; all data transfers are CPU-driven. For DMA support, choose the enhanced "A" variant, such as DSPIC33FJ64GP706A.
5. What can the 4 output compares on the DSPIC33FJ64GP706-I/PT be used for?
   They generate four independent PWM signals for LED dimming, multiple brushed DC motor speed control, simple stepper motor control (with external drivers), or power sequencing. They can also cooperate with input captures for pulse measurement on the DSPIC33FJ64GP706-I/PT.
6. Can the DSPIC33FJ64GP706-I/PT be used for high-performance motor control?
   The 4 output compares on the DSPIC33FJ64GP706-I/PT lack complementary outputs and hardware dead-time, making them unsuitable for directly driving 3-phase BLDC/PMSM motors. The DSPIC33FJ64GP706-I/PT can drive brushed DC or stepper motors with external circuitry. For dedicated motor control, consider the dsPIC33F MC series or devices with motor-control PWMs.
7. What is the ADC speed and resolution of the DSPIC33FJ64GP706-I/PT?
   
   • Resolution: 10-bit on the DSPIC33FJ64GP706-I/PT.
   • Maximum sampling rate: 1.1 Msps, up to 16 analog input channels for multi-sensor acquisition.
8. What is the supply voltage of the DSPIC33FJ64GP706-I/PT? Why use 3.3V?
   
   • Operating voltage range: 3.0V to 3.6V, nominal 3.3V for the DSPIC33FJ64GP706-I/PT.
   • 3.3V enables direct connection to mainstream MCUs, sensors, and digital isolators without extra level shifters, simplifying power design and reducing cost.
9. What development tools and software are supported for the DSPIC33FJ64GP706-I/PT?
   
   • Free MPLAB X IDE and MPLAB XC16 compiler for the DSPIC33FJ64GP706-I/PT.
   • Hardware debuggers: PICkit, ICD series.
   • Software: MPLAB Code Configurator (MCC), DSP libraries, peripheral libraries.
10. Is the DSPIC33FJ64GP706-I/PT suitable for new designs?
    Yes, the DSPIC33FJ64GP706-I/PT is a mature, reliable high-end general-purpose DSC with 64KB Flash, 16KB SRAM, multiple communication ports, and 4 comparators. The DSPIC33FJ64GP706-I/PT offers a cost-effective solution for industrial control, communication gateways, and multi-sensor systems, backed by Microchip's long-term availability. The DSPIC33FJ64GP706-I/PT is ideal for standard high-performance designs that require extra comparators but no DMA.