DSPIC33FJ64MC506A-I/PT - 16-bit 40MIPS Motor Control DSC | Microchip
MPN: DSPIC33FJ64MC506A-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $10.86 | $10.86 |
| 10 | $9.72 | $97.20 |
| 100 | $8.75 | $875.00 |
| 500 | $8.15 | $4,075.00 |
| 1,000 | $7.58 | $7,580.00 |
DSPIC33FJ64MC506A-I/PT Overview
A digital signal controller combines the computational power of a digital signal processor (DSP) with the peripheral integration and control architecture of a microcontroller (MCU). Within the power-management hierarchy, the dsPIC33F family sits above basic MCUs and competes directly with 16-bit DSP devices for embedded motor control and digital power conversion, providing single-cycle multiply-accumulate (MAC) and DSP instructions on top of a conventional microcontroller toolchain.
Key features include 40 MIPS operation from an internal PLL, 8-channel DMA, 11 timers, a CAN 2.0B module for industrial networking, and four serial I/O interfaces (UART, SPI, I2C) plus motor-control PWM peripherals. The device also provides a barrel shifter and boundary-scan (JTAG) debug support, as documented by Microchip and distributor listings.
Architecturally, the dsPIC33FJ64MC506A uses a modified Harvard pipeline with multiple internal bus architectures, allowing simultaneous instruction fetch and data access. The dedicated motor-control PWM module with complementary outputs and dead-time insertion enables direct control of brushless DC (BLDC) motors, single- and three-phase induction motors, and switched reluctance motors without external sequencing logic. A 12-bit analog domain with multiple ADC channels supports current-sense sampling synchronized to PWM cycles.
Typical applications include BLDC and PMSM motor drives, digital power supplies and UPS systems, induction cooking, and industrial automation nodes requiring CAN connectivity. The motor-control peripheral set maps directly onto sensorless FOC and six-step control algorithms.
Design consideration: the VDDCORE/VCAP pin requires an external capacitor for the internal 2.5V core regulator; a 10uF low-ESR capacitor on VCAP is critical for stable operation. Power the analog domain (AVDD) from a filtered 3.3V rail for accurate ADC results.
This page synthesizes distributor pricing, drop-in memory/peripheral family alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64MC506A-I/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 DSPIC33FJ64MC506A-I/PT (same form factor and footprint) — differing in Package, Core, Operating Temperature, RoHS Status, Core Architecture.
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 →DSPIC33FJ256MC506A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.3 / Unit
View Datasheet →DSPIC33FJ64MC506A-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP506A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128GP506A-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506A-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F |
| Maximum Operating Speed | 40 MIPS |
| Flash Program Memory | 64 KB (64K x 8) |
| RAM | 8 KB |
| Package | 64-TQFP (10x10 mm) |
| Operating Temperature Range | -40C to +85C (I grade) |
| Supply Voltage | 3.0 V to 3.6 V |
| DMA Channels | 8 |
| Timers | 11 |
| CAN Module | CAN 2.0B |
| Serial Interfaces | 4 (UART, SPI, I2C combinations) |
| DSP Features | Single-cycle MAC, barrel shifter |
| Debug / Test | JTAG boundary scan, In-Circuit Serial Programming (ICSP) |
| Process Technology | CMOS |
| Mounting Type | Surface Mount |
| Target Applications | Motor control and digital power |
| RoHS Status | Compliant |
DSPIC33FJ64MC506A-I/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference / change notification |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / quadrature encoder index |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / encoder phase A / capture 7 |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / encoder phase B / capture 8 |
| Pin 8 | AN6/OCFA/UPDN/RC1 — Analog input 6 / PWM fault A / counter direction |
| Pin 9 | AN7/U2CTS/RC0 — Analog input 7 / UART2 CTS |
| Pin 10 | AVDD — Analog power supply (3.3 V) |
| Pin 11 | AVSS — Analog ground |
| Pin 12 | AN8/RP15/RC2 — Analog input 8 / remappable peripheral pin 15 |
| Pin 13 | AN9/RP14/RC3 — Analog input 9 / remappable peripheral pin 14 |
| Pin 14 | VDD — Digital power supply (3.3 V) |
| Pin 15 | VSS — Digital ground |
| Pin 16 | AN10/RP13/RC4 — Analog input 10 / remappable peripheral pin 13 |
| Pin 17 | AN11/RP12/RC5 — Analog input 11 / remappable peripheral pin 12 |
| Pin 18 | VDD — Digital power supply (3.3 V) |
| Pin 19 | VSS — Digital ground |
| Pin 20 | AN12/RP11/T2CK/RC6 — Analog input 12 / Timer 2 external clock |
| Pin 21 | AN13/RP10/T3CK/RC7 — Analog input 13 / Timer 3 external clock |
| Pin 22 | AN14/RP9/T1CK/SDO2/RC8 — Analog input 14 / Timer 1 clock / SPI2 data out |
| Pin 23 | AN15/RP8/SCK2/RC9 — Analog input 15 / SPI2 clock |
| Pin 24 | VDDCORE/VCAP — Core regulator output - requires external capacitor to VSS |
| Pin 25 | VSS — Digital ground |
| Pin 26 | PGEC3/RP35/RF12 — Programming clock channel 3 / remappable pin 35 |
| Pin 27 | PGED3/RP36/RF13 — Programming data channel 3 / remappable pin 36 |
| Pin 28 | PGEC2/RB6 — Programming clock channel 2 / port B6 |
| Pin 29 | PGED2/RB7 — Programming data channel 2 / port B7 |
| Pin 30 | TMS/RB8 — JTAG test mode select / port B8 |
| Pin 31 | TCK/RB9 — JTAG test clock / port B9 |
| Pin 32 | SDI1/RP41/RF2 — SPI1 data in / remappable pin 41 |
| Pin 33 | SDO1/RP40/RF3 — SPI1 data out / remappable pin 40 |
| Pin 34 | SCK1/RP39/RF6 — SPI1 clock / remappable pin 39 |
| Pin 35 | SS1/RP38/RF7 — SPI1 slave select / remappable pin 38 |
| Pin 36 | VDD — Digital power supply (3.3 V) |
| Pin 37 | VSS — Digital ground |
| Pin 38 | RP47/RF8 — Remappable peripheral pin 47 / port F8 |
| Pin 39 | RP48/RF9 — Remappable peripheral pin 48 / port F9 |
| Pin 40 | TDI/RB10 — JTAG test data in / port B10 |
| Pin 41 | TDO/RB11 — JTAG test data out / port B11 |
| Pin 42 | PGEC1/RB12 — Programming clock channel 1 / port B12 |
| Pin 43 | PGED1/RB13 — Programming data channel 1 / port B13 |
| Pin 44 | PGD/EMUD1/RB14 — Primary programming data / emulator channel 1 / port B14 |
| Pin 45 | PGC/EMUC1/RB15 — Primary programming clock / emulator channel 1 / port B15 |
| Pin 46 | SDA1/RP50/RF4 — I2C1 data / remappable peripheral pin 50 |
| Pin 47 | SCL1/RP49/RF5 — I2C1 clock / remappable peripheral pin 49 |
| Pin 48 | U1RX/RP44/RF10 — UART1 receive / remappable peripheral pin 44 |
| Pin 49 | U1TX/RP45/RF11 — UART1 transmit / remappable peripheral pin 45 |
| Pin 50 | RTCC/RP55/RC13 — RTCC secondary oscillator / remappable pin 55 / port C13 |
| Pin 51 | RP56/RC14 — Remappable peripheral pin 56 / port C14 |
| Pin 52 | VDD — Digital power supply (3.3 V) |
| Pin 53 | VSS — Digital ground |
| Pin 54 | RD0/RP64 — Port D0 / remappable peripheral pin 64 (PWM output) |
| Pin 55 | RD1/RP65 — Port D1 / remappable peripheral pin 65 (PWM output) |
| Pin 56 | RD2/RP66 — Port D2 / remappable peripheral pin 66 (PWM output) |
| Pin 57 | RD3/RP67 — Port D3 / remappable peripheral pin 67 (PWM output) |
| Pin 58 | RD4/RP68 — Port D4 / remappable peripheral pin 68 (PWM output) |
| Pin 59 | RD5/RP69 — Port D5 / remappable peripheral pin 69 (PWM output) |
| Pin 60 | RD6/RP70 — Port D6 / remappable peripheral pin 70 (PWM output) |
| Pin 61 | RD7/RP71 — Port D7 / remappable peripheral pin 71 (PWM output) |
| Pin 62 | RD8/RP72 — Port D8 / remappable peripheral pin 72 |
| Pin 63 | RD9/RP73 — Port D9 / remappable peripheral pin 73 |
| Pin 64 | VDD — Digital power supply (3.3 V) |
Typical Applications
DSPIC33FJ64MC506A-I/PT is suitable for 6 applications: Brushless DC Motor Drives, Three-Phase Induction Motor Control, Industrial Automation and CAN Nodes, Digital Power Conversion, Switched Reluctance Motor Drives, Embedded Control with High Integration.
Brushless DC Motor Drives
The DSPIC33FJ64MC506A fits BLDC drives because its 40 MIPS DSP core with single-cycle MAC executes commutation and PI current loops in microseconds, while the motor-control PWM module generates three complementary output pairs with hardware dead-time insertion. According to Microchip, the dsPIC33F MC family explicitly targets brushless DC motor applications. In practice, the PWM module triggers the 12-bit ADC at the center of the PWM period to sample phase currents at their lowest ripple point, enabling sensorless or Hall-based FOC and six-step control. Using a 20 kHz PWM carrier leaves substantial CPU headroom at 40 MIPS for protection routines, CAN reporting, and speed ramps, all within the 64KB Flash budget for typical drive firmware.
Recommended
Three-Phase Induction Motor Control
For single- and three-phase induction motors, the DSPIC33FJ64MC506A provides the compute throughput for V/Hz and sensorless vector control at 40 MIPS, plus 8KB of RAM sufficient for three-phase current/history buffers and observer state variables. Microchip documents induction motor support as a primary family use case. The complementary PWM outputs drive a six-MOSFET inverter through gate drivers, while the 12-bit ADC samples DC-bus current and the phase voltages; the CAN 2.0B module links the drive into factory automation networks. A key quantified benefit: hardware dead-time insertion in the PWM module removes timing-critical software delay, improving inverter efficiency and protecting the power stage against shoot-through at PWM frequencies of 4-20 kHz typical for induction drives.
Recommended
Industrial Automation and CAN Nodes
The integrated CAN 2.0B controller makes the DSPIC33FJ64MC506A a strong fit for industrial automation nodes such as conveyor controllers, pump stations, and robotic actuator interfaces. Four serial interfaces (UART, SPI, I2C combinations) allow simultaneous connection to displays, sensors, and external flash for logging, while the 8 DMA channels offload data movement from the 40 MIPS core, keeping loop timing deterministic. The 8KB RAM holds CAN message queues and protocol stacks with headroom, and the 11 timers cover scheduled tasks, input capture, and quadrature encoder interfaces. JTAG boundary scan supports production test on industrial boards, and the -40C to +85C industrial temperature grade of the I-suffix part matches factory environments.
Recommended
Digital Power Conversion
In digital power supplies, UPS systems, and PFC front ends, the DSPIC33FJ64MC506A closes voltage and current loops at 40 MIPS while its PWM module provides precisely phased outputs for half-bridge and full-bridge topologies. The ADC can be triggered synchronously with PWM edges so that switching noise never corrupts sampled feedback - a critical requirement for stable loop control in SMPS designs. DMA moves sampled values to RAM without CPU intervention, reserving cycles for the compensator and fault handling. Microchip positions the dsPIC33F MC family for Uninterruptible Power Supply (UPS) and digital power applications. For designs needing finer PWM duty resolution, the site's DSPIC33FJ64GS610 parts add high-resolution PWM in the same brand ecosystem while the MC506A remains the drop-in choice for existing footprints.
Recommended
Switched Reluctance Motor Drives
Switched reluctance (SR) motor control demands accurate per-phase current regulation and unaligned/aligned rotor position inference from current signatures - tasks the DSPIC33FJ64MC506A handles with its 40 MIPS core, fast 12-bit ADC, and flexible motor-control PWM that supports independent half-bridge phase control. Microchip's product documentation lists switched reluctance motors among the family's supported applications. The single-cycle MAC accelerates the phase-current observers and torque-sharing algorithms, while 64KB Flash accommodates the SR-specific control tables and startup routines. Because SR drives operate without rotor magnets or rotor windings, system cost matters; using a single integrated DSC for control, CAN communication, and protection eliminates external supervisor ICs, reducing BOM cost while the JTAG boundary scan eases production testing of the power stage.
Recommended
Embedded Control with High Integration
For general embedded control systems needing DSP-class math - such as power quality analyzers, battery management supervisors, and test instrumentation - the DSPIC33FJ64MC506A offers a compelling integration point: 16-bit DSP processing, 8 DMA channels, 11 timers, and four serial ports in one 64-TQFP device. The barrel shifter and single-cycle MAC accelerate FFT and filter kernels that would stall a conventional 16-bit MCU, while the remappable RPn peripheral pins let designers optimize PCB routing without hardware mux conflicts. The 8KB RAM supports buffered signal processing windows, and ICSP plus JTAG boundary scan covers both development debugging and board-level production test. The industrial -40C to +85C grade of this I/PT variant suits instrumentation deployed in unconditioned environments.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC506A-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128MC506A-I/PT | DSPIC33FJ256MC506A-I/PT | DSPIC33FJ64MC506-I/PT | DSPIC33FJ64GP506A-I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 64 KB | 128 KB | 256 KB | 64 KB | 64 KB |
| RAM | 8 KB | 8 KB | 16 KB | 8 KB | 8 KB |
| Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Peripheral Focus | Motor control PWM + CAN | Motor control PWM + CAN | Motor control PWM + CAN | Motor control PWM + CAN (pre-A silicon) | General purpose communications |
| Silicon Revision | A (current) | A (current) | A (current) | Original (has family errata) | A (current) |
Key Differentiators
- Lowest Flash cost point in the MC506A motor-control family (vs DSPIC33FJ128MC506A-I/PT)
- Corrected A-revision silicon (vs DSPIC33FJ64MC506-I/PT (non-A))
- Dedicated motor-control peripheral emphasis (vs DSPIC33FJ64GP506A-I/PT)
- Trade-off: memory ceiling (vs DSPIC33FJ256MC506A-I/PT)
Design Notes
The VDDCORE/VCAP pin (pin 24 in the 64-TQFP) is the output of the internal 2.5V core regulator and MUST have a low-ESR 10uF ceramic capacitor to VSS placed within a few millimeters of the pin. Without it the core supply cannot stabilize, causing failed startup, erratic resets, or clock instability. Also decouple each VDD pair with 0.1uF ceramics, and power AVDD (pin 10) through an RC or ferrite filter from the 3.3V rail for accurate 12-bit ADC results.
Route the motor-control PWM outputs (RP64-RP71 on port D) with matched trace lengths to the gate drivers so the three phase legs see balanced propagation delay; mismatch appears as torque ripple. Keep the analog ground under AVSS/AVDD as a quiet island connected to digital ground at a single star point. Use the RPn remappable pins to relocate serial peripherals near their connectors instead of crossing the PWM routing channels.
MCLR is also the ICSP programming pin - keep the pull-up resistor and any reset capacitors out of the programming header path (use the standard ICSP 5-pin arrangement or a diode-isolated reset). Verify CONFIG bits for the oscillator source: relying on the internal FRC with PLL is convenient, but a wrong OSC config on first power-up locks out reprogramming via ICSP in rare configurations. Reference Microchip application notes on dsPIC33F PWM fault handling before enabling OCFA/OCFB fault inputs in production motor drives.
Compliance Information
I/PT parts are RoHS-compliant, lead-free as listed by DigiKey/Mouser. AEC-Q100 qualification is not indicated for this standard industrial part; extended-temp E/PT variants exist but qualification data was not provided in the verified data.
