DSPIC33FJ128MC506A-H/PT - 16-bit DSC, 128KB Flash, 40 MIPS | Microchip
MPN: DSPIC33FJ128MC506A-H/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.9 | $490.00 |
| 500 | $4.35 | $2,175.00 |
| 1,000 | $3.9 | $3,900.00 |
DSPIC33FJ128MC506A-H/PT Overview
A digital signal controller combines the compute architecture of a microcontroller with the mathematical throughput of a digital signal processor. Within the power electronics hierarchy, the DSC sits above a basic MCU: it adds a DSP engine, high-resolution PWM peripherals, and fast ADCs, making it the natural choice for closed-loop control of motors and power converters where a standard microcontroller lacks the cycle-accurate peripherals and multiply-accumulate throughput.
Key features include the 16-bit dsPIC33F core with DSP instruction support, motor-control PWM peripherals suited to brushless DC, single- and 3-phase induction, and switched reluctance motor drives, 8 DMA channels for low-CPU-overhead data movement, 11 timers, 4 serial I/O ports (UART, SPI, I2C), and a CAN 2.0B controller for industrial networking. The family is also noted for advanced analog integration.
Architecturally, the device uses a modified Harvard bus structure with a 24-bit instruction word, letting program and data buses operate in parallel. Deterministic interrupt latency and hardware DSP multiply-accumulate operations allow tight control-loop execution at kHz-class PWM frequencies typical of field-oriented control.
Typical applications include brushless DC motor drives, induction motor inverters, switched reluctance motor control, and unified (sensor-based) motor control schemes in industrial automation and appliance systems.
Design consideration: this is a 3.3V-only part; level-shift or choose appropriate drivers when interfacing 5V logic, and budget decoupling capacitance on all VDD/VSS pairs in the 64-TQFP layout.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ128MC506A-H/PT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33FJ128MC506A-H/PT (same form factor and footprint) — differing in Package, Timers, Core, Core Architecture, Maximum CPU Speed.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128MC506A-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.2 / Unit
View Datasheet →DSPIC33FJ128MC506A-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.9 / Unit
View Datasheet →DSPIC33FJ256MC506A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128MC506-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128MC506A-H/PT Maximum Ratings & Electrical Characteristics
| Core | dsPIC33F, 16-bit |
| Program Memory Size | 128KB (128K x 8) Flash |
| SRAM Size | 8192 words |
| Maximum CPU Speed | 40 MIPS |
| Operating Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Oscillator Frequency | 40 MHz |
| Package | 64-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| DMA Channels | 8 |
| Timers | 11 |
| Serial Interfaces | 4 serial I/O ports (UART, SPI, I2C) |
| CAN Controller | Yes (CAN 2.0B, motor control optimized family) |
| Peripherals | Motor Control PWM, Advanced Analog |
| Program Memory Width | 24-bit |
| Core Architecture | CMOS, modified Harvard |
| Target Applications | Motor Control (BLDC, induction, switched reluctance) |
DSPIC33FJ128MC506A-H/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ128MC506A-H/PT (64-tqfp (10x10 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33FJ128MC506A-H/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ128MC506A-H/PT is suitable for 6 applications: Brushless DC (BLDC) Motor Control, 3-Phase Induction Motor Inverter, Switched Reluctance Motor (SRM) Drives, Unified (Sensor-Based) Motor Control, Industrial Automation with CAN Networking, Digital Power Conversion and Appliances.
Brushless DC (BLDC) Motor Control
The DSPIC33FJ128MC506A-H/PT is purpose-built for BLDC drives: its dsPIC33F core executes commutation and current-loop code at up to 40 MIPS, while dedicated motor-control PWM peripherals generate the complementary six-step or space-vector waveforms with hardware dead-time insertion. The 8 DMA channels stream ADC current-sense samples without CPU intervention, keeping the control loop deterministic at PWM frequencies of tens of kHz. A typical implementation closes the current loop at the PWM rate and the speed loop at 1 kHz, using 128KB Flash for the control firmware, trajectory planning, and a CAN or UART commissioning interface. The 3.3V peripheral rails simplify interfacing with gate-driver ICs that accept 3.3V logic inputs.
Recommended
3-Phase Induction Motor Inverter
For V/f and field-oriented control of induction motors, the DSPIC33FJ128MC506A-H/PT combines a 40 MIPS 16-bit DSP engine with hardware multiply-accumulate, executing Clarke/Park transforms and PI current regulators well within a 10 kHz loop budget. The motor-control PWM module generates three phase-leg pairs with programmable dead time, and the advanced analog front end (multiple ADC channels with simultaneous sampling capability) captures phase currents and DC-bus voltage. 128KB Flash accommodates sensorless observer algorithms such as MRAS or sliding-mode speed estimation alongside protection routines for overcurrent and bus-undervoltage. The on-chip CAN 2.0B controller links the drive into factory automation networks without external controllers.
Recommended
Switched Reluctance Motor (SRM) Drives
SRM control demands asymmetric, phase-sequential excitation with precise current chopping - a task matched to the DSPIC33FJ128MC506A-H/PT's independently controllable PWM outputs and fast ADC. Per Microchip's family positioning, the dsPIC33FJ128MC506A explicitly supports switched reluctance motor applications. The 40 MIPS core runs torque-sharing-function control with per-phase current regulation, while 11 timers provide the phase-angle bookkeeping for commutation at variable speed. Multiple DMA channels move phase-current samples to RAM continuously, and the 8192-word SRAM holds per-phase lookup tables for inductance profiles. The 64-pin TQFP supplies enough I/O for position-sensor arrays and gate-driver interfacing in a single controller.
Recommended
Unified (Sensor-Based) Motor Control
Microchip describes the dsPIC33FJ128MC506A family as well-suited for unified motor control schemes that share one controller across multiple motor types and sensors. The DSPIC33FJ128MC506A-H/PT's 4 serial I/O ports (UART, SPI, I2C) simultaneously host encoder interfaces, hall-sensor front ends, resolver-to-digital converters over SPI, and a human-machine-interface UART. The 8-channel DMA and 11-timer infrastructure coordinate sensor sampling with PWM updates, and 128KB Flash stores firmware for several motor profiles selected at runtime. This makes the part attractive for programmable drive platforms, HVAC blowers, pumps, and appliance products where one PCB must service multiple motor SKUs with different sensors.
Recommended
Industrial Automation with CAN Networking
In factory automation nodes, the DSPIC33FJ128MC506A-H/PT serves as both an actuation controller and a networked node: its integrated CAN 2.0B controller connects to plant buses via an external transceiver, while the motor-control PWM and ADC subsystems drive local actuators. The 40 MIPS core runs the protocol stack and application concurrently, and 8 DMA channels offload serial and ADC traffic. Hotenda's listing places the part in automotive/AEC-Q100-oriented series contexts, and its robust industrial 3.3V operation with watchdog and brown-out support fits 24-hour equipment. 128KB Flash leaves ample room for parameter storage schemes, diagnostics, and field firmware updates over the CAN channel.
Recommended
Digital Power Conversion and Appliances
Beyond motors, the dsPIC33FJ128MC506A-H/PT's cycle-accurate PWM, fast analog comparators, and DSP core suit digital power stages: PFC stages, resonant converters, and appliance inverter modules. The 16-bit architecture executes compensation-law code in a fixed number of cycles, keeping control-loop latency predictable across load conditions - a requirement for stable wide-bandwidth power converters. The 8 DMA channels maintain continuous current/voltage telemetry, and 128KB Flash supports multiple operating profiles plus a bootloader for field updates. For appliance OEMs, the mature dsPIC33F toolchain (MPLAB X IDE, XC16 compiler) and long-lifecycle availability reduce development and supply risk across product generations.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128MC506A-H/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128MC506A-I/PT | DSPIC33FJ256MC506A-I/PT | DSPIC33FJ64MC506A-I/PT | DSPIC33FJ128MC506-I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10) | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same | 64-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 128KB (128K x 8) | 128KB | 256KB | 64KB | 128KB |
| Core / Max Speed | dsPIC33F 16-bit, 40 MIPS | dsPIC33F, 40 MIPS | dsPIC33F, 40 MIPS | dsPIC33F, 40 MIPS | dsPIC33F, 40 MIPS |
| SRAM | 8192 words | 8192 words | 8192 words | 8192 words | 8192 words |
| DMA Channels | 8 | 8 | 8 | 8 | 8 |
| Timers | 11 | 11 | 11 | 11 | 11 |
| Silicon Revision / Temperature | A-revision, extended (-H) grade | A-revision, -40C to +85C | A-revision, -40C to +85C | A-revision, -40C to +85C | Original (non-A) die, -40C to +85C |
Key Differentiators
- A-revision silicon with errata corrected (vs DSPIC33FJ128MC506-I/PT)
- Balanced 128KB memory with full 64-pin peripheral set (vs DSPIC33FJ256MC506A-I/PT)
- Extended temperature grade for harsh environments (vs DSPIC33FJ128MC506A-I/PT)
Design Notes
The dsPIC33FJ family operates strictly at 3.0V to 3.6V (per Microchip USA listing: supply voltage range starting at 3V). Provide a clean, locally regulated 3.3V rail with 0.1uF decoupling at every VDD/VSS pair in the 64-TQFP, plus bulk capacitance near the regulator. Do not feed the part from 5V rails even briefly at startup - the dsPIC33F is not 5V tolerant. If the board has a 5V domain, add level shifting on all crossing signals.
Route the motor-control PWM outputs as matched groups to the gate drivers, and keep high-di/dt power loops (DC bus, phase legs) physically separated from the microcontroller ground. Use a solid ground plane with a single connection point under the MCU to prevent gate-drive return currents from modulating ADC ground references. Place current-sense filtering close to the ADC pins; the dsPIC33F ADC accuracy degrades if source impedance exceeds datasheet recommendations at full sampling rate.
Distributor listings show conflicting MIPS figures (DigiKey: 20 MIPS; Mouser/Microchip: 40 MIPS) because dsPIC33F speed derates at the low end of VDD. Verify your actual operating point in the electrical characteristics table before locking timing budgets for control loops. Also check errata: use the A-revision (506A) die - the original DSPIC33FJ128MC506 carries documented silicon issues that the A-version corrects. Confirm the exact qualification meaning of the '-H' suffix against the datasheet ordering table for automotive programs.
Compliance Information
Hotenda listing references automotive/AEC-Q100 context for the dsPIC33FJ series; the exact qualification and environmental compliance of this specific ordering code was not stated in the provided data. Verify against Microchip's official product page.
