DSPIC33FJ64MC506A-I/MR - 16-bit DSC 40MIPS 64KB Flash | Microchip
MPN: DSPIC33FJ64MC506A-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.21 | $62.10 |
| 100 | $5.52 | $552.00 |
| 500 | $4.97 | $2,485.00 |
| 1,000 | $4.48 | $4,480.00 |
DSPIC33FJ64MC506A-I/MR Overview
A digital signal controller combines the computational architecture of a digital signal processor (DSP) with the peripheral integration and ease of use of a microcontroller (MCU). Within the power-management hierarchy, the dsPIC33FJ family sits between general-purpose MCUs and dedicated DSPs, offering hardware multiply-accumulate, barrel shifting, and multiple internal bus architectures for deterministic real-time control loops.
Key features include 11 timers, 8 DMA channels, and 4 serial I/O ports, enabling complex control and signal processing tasks. The device is optimized for motor control and includes CAN connectivity per the Microchip product page. Boundary scan capability and a barrel shifter support diagnostics and efficient data manipulation.
Architecturally, the dsPIC33FJ64MC506A uses the dsPIC33FJ core with DSP engine support for single-cycle MAC operations, making it well-suited for field-oriented control (FOC) and other math-intensive algorithms. Peripherals include motor-control PWM and advanced analog resources as described in the Microchip 374-page family datasheet.
Typical applications include brushless DC (BLDC) motors, single- and 3-phase induction motors, switched reluctance motors, uninterruptible power supplies (UPS), and digital power conversion, all explicitly listed by Microchip for this family.
Design consideration: the supply range is 3.0V to 3.6V, so a 3.3V LDO or buck regulator with low ripple is recommended; decouple all VDD/VDDCORE pins per the manufacturer datasheet layout guidance.
This page synthesizes distributor pricing context, drop-in family alternatives, and design notes not consolidated in the manufacturer datasheet. Pricing shown is an estimate as of 2026-09-27; verify live quotes with your distributor.
Drop-in alternatives for DSPIC33FJ64MC506A-I/MR — 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/MR (same form factor and footprint) — differing in Operating Temperature, Timers, Package, Core, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128MC506A-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.42 / Unit
View Datasheet →DSPIC33FJ256MC506A-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC506A-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GS406-E/MR
✅ Drop-In✓ In Stock
$4.02 / Unit
View Datasheet →DSPIC33FJ64MC506A-I/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit DSC (MCU/DSP) |
| Max CPU Speed | 40 MIPS |
| Program Memory (Flash) | 64 KB (8192 words) |
| Data RAM | 8 KB |
| Supply Voltage (VDD) | 3 V to 3.6 V |
| Timers | 11 |
| DMA Channels | 8 |
| Serial I/O Ports | 4 |
| CAN Interface | Yes |
| Special Peripherals | Motor Control PWM, advanced analog |
| Core Type | 40 MHz CMOS core |
| Barrel Shifter | Yes |
| Boundary Scan | Yes |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 64-VQFN (9x9 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
DSPIC33FJ64MC506A-I/MR 64-vqfn (9x9 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC506A-I/MR (64-vqfn (9x9 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 DSPIC33FJ64MC506A-I/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC506A-I/MR is suitable for 6 applications: Brushless DC Motor Control, Single and 3-Phase Induction Motor Drives, Uninterruptible Power Supplies (UPS), Switched Reluctance Motor (SRM) Drives, Industrial CAN Networking Nodes, Embedded Signal Processing and Data Acquisition.
Brushless DC Motor Control
The DSPIC33FJ64MC506A-I/MR is explicitly listed by Microchip as supporting brushless DC (BLDC) motor applications. Its 40 MIPS DSP core executes field-oriented control (FOC) or sensorless trapezoidal algorithms with single-cycle multiply-accumulate operations, while 11 timers and dedicated motor-control PWM peripherals generate the complementary gate signals for three-phase inverters. The 8 DMA channels transfer ADC current-sense samples without CPU intervention, sustaining control loops at 16-20 kHz PWM frequencies with margin. Place the device between current-shunt amplifiers and the gate-driver stage; the CAN interface lets the drive report status on industrial networks.
Recommended
Single and 3-Phase Induction Motor Drives
According to the Microchip product page, the dsPIC33FJ64MC506A family supports single- and 3-phase induction motor applications. The 64 KB Flash accommodates V/f control or sensorless vector-control firmware, and the 8 KB RAM holds state observers and scaling tables. The 40 MHz CMOS core with barrel shifter accelerates Clarke/Park transforms, while multiple serial I/O ports connect HMI panels or host controllers. Its 3.0V to 3.6V operation suits isolated gate-drive designs using 3.3V logic-level isolators. The industrial -40C to +85C temperature grade covers drive enclosures without forced air in most installations.
Recommended
Uninterruptible Power Supplies (UPS)
Microchip lists uninterruptible power supplies as a target application for the dsPIC33F Motor Control portfolio, and the DSPIC33FJ64MC506A-I/MR fits this role with its motor-control PWM units doubling as high-resolution inverter modulators. The 40 MIPS throughput supports multi-rate control: an inner current loop plus outer voltage/frequency regulation at 3.3V logic. Eight DMA channels stream ADC samples of output voltage and battery current, and the CAN port implements UPS network protocols. Use the 64 KB Flash for waveform generation tables and battery-charging state machines within a single controller.
Recommended
Switched Reluctance Motor (SRM) Drives
The Microchip product page explicitly names switched reluctance motors among applications supported by the dsPIC33FJ64MC506A family. SRM control demands precise phase-current chopping and rotor-position estimation from torque-signature analysis - tasks suited to the 40 MIPS DSP core with single-cycle MAC and the 11-timer resource pool for asymmetric PWM gating. The 8 KB RAM holds flux-linkage lookup tables, and the advanced analog front end samples phase currents. Because SRM drives operate in harsh industrial settings, the -40C to +85C I-grade and ROHS3-compliant 64-VQFN package support both compliance and environmental requirements.
Recommended
Industrial CAN Networking Nodes
With an integrated CAN interface per the Microchip and distributor specifications, the DSPIC33FJ64MC506A-I/MR serves as an intelligent CAN node in factory automation, combining sensing and actuation. The four serial I/O ports allow simultaneous UART links to sensors, SPI to external flash or ADCs, and I2C to EEPROM, while the 8 DMA channels keep transfers off the CPU. The 40 MIPS core runs protocol stacks and local control loops concurrently. Boundary-scan support eases production-line board test, and the 64-VQFN 9x9 mm footprint fits dense I/O module PCBs.
Recommended
Embedded Signal Processing and Data Acquisition
The DSP engine of the DSPIC33FJ64MC506A-I/MR - hardware MAC, barrel shifter, and multiple internal bus architectures per the Microchip USA product description - makes it effective for embedded spectral analysis, digital filtering, and sensor-fusion acquisition in industrial instruments. The 64 KB Flash stores FIR/IIR coefficient sets and FFT routines; 8 KB RAM buffers sampled data streamed by the 8 DMA channels. The four serial I/O ports export processed results to host systems, and boundary-scan capability supports automated test. At 3.3V with 40 MIPS, it outperforms general-purpose MCUs while remaining simpler than a standalone DSP.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC506A-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128MC506A-I/MR | DSPIC33FJ256MC506A-I/MR | DSPIC33FJ32MC506A-I/MR | DSPIC33FJ64MC506-I/MR | DSPIC33FJ64GS406-E/MR |
|---|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | MR (VQFN) - same footprint family |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C (E grade variant available) |
Key Differentiators
- Balanced 64 KB Flash density at lowest cost per KB in family (vs DSPIC33FJ128MC506A-I/MR)
- A-revision silicon (errata-corrected) (vs DSPIC33FJ64MC506-I/MR)
- Motor-control peripheral set vs digital-power siblings (vs DSPIC33FJ64GS406-E/MR)
Design Notes
Supply the DSPIC33FJ64MC506A-I/MR from a clean 3.3V rail within the specified 3.0V to 3.6V range. In motor-drive or UPS environments, the controller shares ground with high-di/dt switching stages: route the 3.3V plane away from gate-driver loops, add one 100 nF ceramic capacitor at every VDD/VSS pair placed within 5 mm of the pins, plus the VDDCORE capacitor per the Microchip datasheet, and bulk 10 uF-47 uF local storage. Brown-out during PWM transients is a common field failure cause - enable the internal brown-out reset.
The 64-VQFN 9x9 mm package has a perimeter lead array; use a solder-mask-defined footprint per the Microchip datasheet land-pattern recommendation with via-in-pad thermal relief for the center pad where applicable. Keep ADC sense traces (phase current feedback) away from PWM output traces and gate-driver nodes; route them as short differential pairs to shunt amplifiers. Provide the full 64-pin pin-map check against the datasheet Pin Diagrams section before release - the MC506A pin multiplexing is shared across PWM, UART, SPI, and CAN functions.
Do not confuse the -MR (VQFN) and -PT (TQFP) orderings: they are electrically identical but have different footprints and are NOT interchangeable on the same PCB. The A-suffix silicon corrects errata in the original dsPIC33FJ64MC506 - always download the current errata sheet from the Microchip product page and verify the silicon revision marking on delivered lots. Also confirm configuration-bit settings (oscillator, watchdog, PWM polarity) on each firmware release, as incorrect FRC/PLL settings can leave the 40 MHz core running from the internal RC instead of the crystal.
Compliance Information
Distributor data (mcu-supplier.com, Mouser) lists ROHS3 Compliant for DSPIC33FJ64MC506A-I/MR. REACH, halogen-free, and conflict-minerals status not stated in provided data - consult Microchip environmental compliance documentation.
