DSPIC33FJ128MC706AT-I/PT - 16-bit 40MIPS 128KB Flash Motor Control DSC | Microchip
N.º da peça: DSPIC33FJ128MC706AT-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $12.89 | $12,89 |
| 10 | $11.6 | $116,00 |
| 100 | $10.34 | $1.034,00 |
| 500 | $9.21 | $4.605,00 |
| 1.000 | $8.15 | $8.150,00 |
DSPIC33FJ128MC706AT-I/PT Visão geral
A Digital Signal Controller (DSC) is a hybrid between a microcontroller and a DSP - it combines deterministic interrupt-driven control peripherals with hardware multiply-accumulate (MAC) loops for real-time signal conditioning. Within the broader taxonomy, the dsPIC33F sits as a motor-control sub-family of the dsPIC33 family, which itself branches from Microchip's PIC16/PIC18/dsPIC microcontroller hierarchy. The MC706A variant emphasizes motor control with up to 8 PWM outputs and 4 input capture channels for sensored FOC drives.
Key features of the DSPIC33FJ128MC706AT-I/PT include 53 general-purpose I/O pins, 8 DMA channels, 11 timers (five 16-bit and two 32-bit), four serial communication ports (UART, SPI, I2C, ECAN), and a high-performance 16-bit CPU with hardware multiply/divide. Operating from 3.0 V to 3.6 V across -40 °C to +85 °C industrial range, it supports JTAG/ICSP in-circuit debugging.
The architecture uses a 16-bit modified Harvard CPU with 24-bit instruction words, 16 working registers, and a single-cycle MAC unit. An on-chip 8 MHz internal RC oscillator with PLL provides the system clock, and the integrated CAN 2.0B module supports industrial communication protocols. The 128 KB Flash program memory is self-programmable under software control, enabling field firmware updates.
Typical applications include brushless DC motor drives, 3-phase induction motor control, switched reluctance motor controllers, and uninterruptible power supplies. The combination of high-resolution PWM, fast ADC, and DSP MAC throughput makes it well-suited for field-oriented control (FOC) algorithms and digital PFC stages.
For PCB layout, dedicate a solid ground plane beneath the device, keep ADC analog traces short and guarded, and place 100 nF decoupling caps within 5 mm of each VDD pin. The exposed pad of the TQFP should be soldered to a thermal pad connected to ground to reduce thermal resistance.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in any single distributor listing - enabling faster component selection than searching DigiKey, Mouser, and Octopart individually.
Alternativas drop-in para DSPIC33FJ128MC706AT-I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com DSPIC33FJ128MC706AT-I/PT (mesmo formato e footprint) — diferindo em Package, Core Architecture, Operating Temperature, Timers, ADC.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DSPIC33FJ128MC506AT-I/PT
✅ Drop-In✓ Em estoque
$5.1 / unidade
Ver ficha técnica →DSPIC33FJ128MC506A-I/PT
✅ Drop-In✓ Em estoque
$3.2 / unidade
Ver ficha técnica →DSPIC33FJ128MC706A-I/MR
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$6.54 / unidade
Ver ficha técnica →DSPIC33FJ128MC506T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
Consulte o preço
Ver ficha técnica →DSPIC33FJ128GP706AT-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.25 / unidade
Ver ficha técnica →DSPIC33FJ128MC706AT-I/PT Classificações máximas e características elétricas
| Core Architecture | dsPIC33F 16-bit DSC (modified Harvard) |
| CPU Speed | 40 MIPS (50 MHz max oscillator) |
| Program Memory | 128 KB Flash |
| Data RAM | 16 KB SRAM |
| Encapsulamento | 64-pin TQFP (10x10 mm) |
| Operating Voltage | 3.0 V to 3.6 V |
| Temperatura de operação | -40 °C to +85 °C (Industrial) |
| I/O Pins | 53 |
| DMA Channels | 8 |
| Timers | 11 (five 16-bit + two 32-bit + others) |
| Serial Communication | UART, SPI, I2C, ECAN |
| PWM Outputs | 8 motor-control PWM channels |
| ADC | 10-bit, up to 1.1 Msps |
| Input Capture | 4 channels |
| Tipo de montagem | Surface Mount |
| Nível MSL | 3 |
| Status RoHS | Compliant |
| Debug Interface | JTAG / ICSP |
Configuração de pinos do DSPIC33FJ128MC706AT-I/PT
| Pino 1 | RC1 — I/O port C pin 1 |
| Pino 2 | RC2 — I/O port C pin 2 |
| Pino 3 | RC3 — I/O port C pin 3 |
| Pino 4 | RC4 — I/O port C pin 4 |
| Pino 5 | VDD — Digital supply voltage |
| Pino 6 | VSS — Digital ground |
| Pino 7 | PWM1L — PWM 1 Low-side output |
| Pino 8 | PWM1H — PWM 1 High-side output |
| Pino 9 | PWM2L — PWM 2 Low-side output |
| Pino 10 | PWM2H — PWM 2 High-side output |
| Pino 11 | PWM3L — PWM 3 Low-side output |
| Pino 12 | PWM3H — PWM 3 High-side output |
| Pino 13 | PWM4L — PWM 4 Low-side output |
| Pino 14 | PWM4H — PWM 4 High-side output |
| Pino 15 | FLTA1 — PWM Fault A input |
| Pino 16 | FLTB1 — PWM Fault B input |
| Pino 17 | AVDD — Analog supply voltage |
| Pino 18 | AVSS — Analog ground |
| Pino 19 | AN0 — Analog input 0 |
| Pino 20 | AN1 — Analog input 1 |
| Pino 21 | AN2 — Analog input 2 |
| Pino 22 | AN3 — Analog input 3 |
| Pino 23 | AN4 — Analog input 4 |
| Pino 24 | AN5 — Analog input 5 |
| Pino 25 | AN6 — Analog input 6 |
| Pino 26 | AN7 — Analog input 7 |
| Pino 27 | AN8 — Analog input 8 |
| Pino 28 | AN9 — Analog input 9 |
| Pino 29 | AN10 — Analog input 10 |
| Pino 30 | AN11 — Analog input 11 |
| Pino 31 | AN12 — Analog input 12 |
| Pino 32 | AN13 — Analog input 13 |
| Pino 33 | AN14 — Analog input 14 |
| Pino 34 | AN15 — Analog input 15 |
| Pino 35 | OSC1 — Crystal oscillator input |
| Pino 36 | OSC2 — Crystal oscillator output |
| Pino 37 | MCLR — Master clear / reset input |
| Pino 38 | PGED1 — ICSP data I/O |
| Pino 39 | PGEC1 — ICSP clock input |
| Pino 40 | RB0 — I/O port B pin 0 |
| Pino 41 | RB1 — I/O port B pin 1 |
| Pino 42 | RB2 — I/O port B pin 2 |
| Pino 43 | RB3 — I/O port B pin 3 |
| Pino 44 | RB4 — I/O port B pin 4 |
| Pino 45 | RB5 — I/O port B pin 5 |
| Pino 46 | RB6 — I/O port B pin 6 |
| Pino 47 | RB7 — I/O port B pin 7 |
| Pino 48 | RA0 — I/O port A pin 0 |
| Pino 49 | RA1 — I/O port A pin 1 |
| Pino 50 | RA2 — I/O port A pin 2 |
| Pino 51 | RA3 — I/O port A pin 3 |
| Pino 52 | RA4 — I/O port A pin 4 |
| Pino 53 | RA5 — I/O port A pin 5 |
| Pino 54 | RA6 — I/O port A pin 6 |
| Pino 55 | RA7 — I/O port A pin 7 |
| Pino 56 | RD0 — I/O port D pin 0 |
| Pino 57 | RD1 — I/O port D pin 1 |
| Pino 58 | RD2 — I/O port D pin 2 |
| Pino 59 | RD3 — I/O port D pin 3 |
| Pino 60 | RD4 — I/O port D pin 4 |
| Pino 61 | RD5 — I/O port D pin 5 |
| Pino 62 | RD6 — I/O port D pin 6 |
| Pino 63 | RD7 — I/O port D pin 7 |
| Pino 64 | RF6 — I/O port F pin 6 |
Aplicações típicas
DSPIC33FJ128MC706AT-I/PT é adequado para 7 aplicaçãos: Brushless DC (BLDC) Motor Drive, Three-Phase Induction Motor VFD, Switched Reluctance Motor (SRM) Controller, Uninterruptible Power Supply (UPS) Controller, Industrial Servo Drive Controller, Solar Microinverter / String Inverter, PMSM / BLDC Drone ESC Controller.
Brushless DC (BLDC) Motor Drive
The DSPIC33FJ128MC706AT-I/PT drives BLDC motors up to several kW using its integrated 8-channel motor-control PWM module with programmable dead time and dedicated fault inputs. Its 40 MIPS DSP engine executes sensorless BEMF or sensored Hall/encoder-based field-oriented control (FOC) loops within microseconds, while the 10-bit 1.1 Msps ADC samples three-phase currents simultaneously. The on-chip ECAN module supports industrial automation bus integration, and 16 KB SRAM holds velocity/flux PI controller state without external memory.
Recomendado
Three-Phase Induction Motor VFD
The DSPIC33FJ128MC706AT-I/PT is well-suited for variable-frequency drives (VFDs) controlling three-phase induction motors using space-vector PWM with field-oriented control. Its DSP MAC instruction accelerates Park/Clarke transforms and d-q axis PI regulators to run within 10 µs loops at 40 MIPS. The 53 I/O pins support encoder inputs, brake control, and overcurrent protection signals, while 128 KB Flash holds full sensorless induction motor control firmware including space-vector modulation and flux estimators.
Recomendado
Switched Reluctance Motor (SRM) Controller
The DSPIC33FJ128MC706AT-I/PT can control switched reluctance motors by leveraging its 8-channel PWM outputs for independent phase excitation and its fast ADC to sample rotor position via current-derivative sensing. The 40 MIPS CPU executes instantaneous torque control algorithms in real time, while 16 KB SRAM holds per-phase commutation tables. SRM drives benefit from the DSC's hardware MAC when computing torque-sharing functions and current profiling at high commutation rates.
Recomendado
Uninterruptible Power Supply (UPS) Controller
The DSPIC33FJ128MC706AT-I/PT functions as the digital control core of single- and three-phase UPS systems, executing digital PFC and inverter control loops at 40 MIPS. Its on-chip ADC samples mains voltage, current, and battery status synchronously with PWM updates, while the ECAN interface enables battery-stack monitoring communication. The 128 KB Flash holds sinusoidal PWM generation, PLL grid synchronization, and battery charge profiles for enterprise UPS products up to several kVA.
Recomendado
Industrial Servo Drive Controller
The DSPIC33FJ128MC706AT-I/PT powers industrial servo drives requiring precise position/velocity/torque control loops with PWM frequencies above 20 kHz. Its 53 I/O pins accept quadrature encoder inputs, while 4 input-capture channels measure pulse widths from Hall sensors or absolute encoders. The DSP MAC accelerates FF/PB/FB PID controllers and feedforward observers, while 8 DMA channels move ADC samples without CPU intervention for tight torque-loop timing.
Recomendado
Solar Microinverter / String Inverter
The DSPIC33FJ128MC706AT-I/PT acts as the MPPT and inverter controller in small-to-medium solar microinverters up to 1 kW, executing perturb-and-observe or incremental-conductance MPPT at sub-millisecond rates. The DSC's DSP MAC handles grid-synchronization PLL, anti-islanding detection, and THD-optimized sine PWM generation. ECAN or UART interfaces report telemetry to inverter aggregators, while the 128 KB Flash stores grid-code profiles for multiple regional standards.
Recomendado
PMSM / BLDC Drone ESC Controller
The DSPIC33FJ128MC706AT-I/PT fits UAV electronic speed controller (ESC) designs for PMSM and BLDC motors up to 1 kW, where its 40 MIPS DSP executes fast FOC loops and its 8 PWM channels drive a three-phase bridge. The 53 I/O pins interface to drone flight-controller PWM inputs and serial telemetry, while the small 10x10 mm TQFP footprint suits lightweight ESC PCB layouts. The 16 KB SRAM holds rotor position observers and adaptive current-loop coefficients at 32 kHz update rates.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DSPIC33FJ128MC706AT-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | DSPIC33FJ128MC506AT-I/PT | DSPIC33FJ128MC506A-I/PT | DSPIC33FJ128MC506T-I/PT | DSPIC33FJ128GP706AT-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-64 (10x10) | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same | TQFP-64 (10x10) - same |
| Program Memory | 128 KB Flash | 128 KB Flash | 128 KB Flash | 128 KB Flash | 128 KB Flash |
| Data RAM | 16 KB SRAM | 16 KB SRAM | 16 KB SRAM | 16 KB SRAM | 16 KB SRAM |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| PWM Channels | 8 motor-control | 6 motor-control | 6 motor-control | 6 motor-control | None (GP variant) |
| ADC | 10-bit, 1.1 Msps | 10-bit, 1.1 Msps | 10-bit, 1.1 Msps | 10-bit, 1.1 Msps | 10-bit, 1.1 Msps |
| I/O Pins | 53 | 53 | 53 | 53 | 53 |
| Motor Control PWM Module | Yes (8 outputs) | Yes (6 outputs) | Yes (6 outputs) | Yes (6 outputs) | No (GP family) |
Principais diferenciais
- 8-channel motor-control PWM with dedicated fault inputs (vs DSPIC33FJ128MC506AT-I/PT)
- Integrated ECAN 2.0B module for industrial networking (vs DSPIC33FJ128GP706AT-I/PT)
- Dedicated motor-control peripherals vs general-purpose DSC (vs DSPIC33FJ128GP706AT-I/PT)
Notas de projeto
Place 100 nF ceramic decoupling capacitors within 5 mm of every VDD pin and a 10 uF bulk capacitor on each VDD/VSS pair. The AVDD analog supply must be isolated from VDD with a ferrite bead or separate LDO regulator to avoid digital switching noise coupling into ADC readings. According to Microchip dsPIC33F hardware design guidelines, an unbroken ground plane beneath the device is mandatory for the exposed pad and all VSS pins.
Estimated: the TQFP-64 (10x10) package has thermal resistance (theta_JA) of approximately 45 C/W on a standard 4-layer JEDEC test PCB. At maximum CPU load of 40 MIPS with all peripherals active, internal power dissipation typically reaches 200 mA at 3.3 V (660 mW), giving a junction temperature rise of ~30 C above ambient. For closed-enclosure industrial drives operating at +85 C ambient, verify margin to +125 C junction limit and consider copper-area heatsinking.
Do not leave the MCLR pin floating - it must be pulled high to VDD through a 10 kOhm resistor for normal operation, with a 100 nF capacitor to VSS for noise immunity. The MCLR circuit must also include a diode clamp to VDD to prevent negative voltage transients during ESD events. Without proper MCLR biasing, the device can enter spurious reset states in motor-noise environments.
Route the oscillator traces (OSC1/OSC2) on the top layer with grounded guard traces on both sides, keeping total trace length under 10 mm to minimize parasitic capacitance. Place load capacitors (typically 15-33 pF for crystal operation) as close to the OSC pins as possible. For high-speed digital signals adjacent to analog ADC inputs, maintain at least 3x trace-width spacing or use a ground guard trace to prevent capacitive crosstalk into current-sense measurements.
Informações de conformidade
RoHS and REACH compliance per Microchip product page (microchip.com/en-us/product/dsPIC33FJ128MC706A). The -I suffix indicates industrial -40C to +85C temperature grade; this variant is NOT AEC-Q100 qualified. For automotive designs use AEC-Q100 qualified dsPIC33FJ128MCxxxA-E (extended temp) variants.
