DSPIC33FJ64MC506A-E/MR - 16-bit DSC 40MIPS 64KB Flash | Microchip
MPN: DSPIC33FJ64MC506A-E/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.74 | $6.74 |
| 10 | $6.2 | $62.00 |
| 100 | $5.65 | $565.00 |
| 500 | $5.2 | $2,600.00 |
| 1,000 | $4.8 | $4,800.00 |
DSPIC33FJ64MC506A-E/MR Overview
A Digital Signal Controller combines the compute architecture of a microcontroller with the numeric acceleration of a DSP. In the power-management hierarchy, a DSC such as this dsPIC33F device sits above general-purpose MCUs for control loops that need fast multiply-accumulate operations, making it a direct predecessor-friendly member of the broader Microchip 16-bit MCU/DSP portfolio with seamless migration to PIC24 MCUs and dsPIC30F DSCs in similar packages.
Key features of the dsPIC33FJ64MC506A family include its motor-control-optimized peripherals, an 8-channel DMA engine, 11 timers, 4 serial I/O peripherals, and CAN 2.0B connectivity, all running from a single 3.0V to 3.6V supply. The A-suffix silicon revision adds refinements over the original dsPIC33FJ64MC506 while remaining code-compatible.
The core executes modified Harvard instructions with DSP engine support (barrel shifter, 17-bit x 17-bit single-cycle MAC) at 40 MIPS, which is the headroom needed to close field-oriented-control current loops in the tens of microseconds. The internal oscillator with PLL removes the need for an external crystal in many designs, and multiple serial buses (UART, SPI, I2C) plus CAN allow a single chip to run the control loop and the communication stack simultaneously.
Typical applications include brushless DC motor drives, single-phase and 3-phase induction motor control, switched reluctance motor drives, uninterrupted power supplies (UPS), and digital power conversion such as PFC and DC-DC stages.
A key design consideration: the MR (VQFN-64) package requires careful thermal pad and via design for heat dissipation, and the extended -40C to +125C E-grade rating must be derated against power dissipation at the upper ambient extreme.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with all specifications cross-checked against Microchip and distributor data as of 2026-09-27.
Drop-in alternatives for DSPIC33FJ64MC506A-E/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-E/MR (same form factor and footprint) — differing in Operating Temperature, RoHS Status, DMA Channels, Timers, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64MC506A-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.48 / Unit
View Datasheet →DSPIC33FJ128MC506A-E/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.82 / Unit
View Datasheet →DSPIC33FJ256MC506A-E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64MC506-E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GS406-E/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.02 / Unit
View Datasheet →DSPIC33FJ64MC506A-E/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Max CPU Speed | 40 MIPS |
| Program Memory (Flash) | 64 KB (64K x 8) |
| Package | 64-VQFN (9x9 mm) |
| Mounting Type | Surface Mount |
| DMA Channels | 8 |
| Timers | 11 |
| Serial Peripherals | 4 serial I/O (UART/SPI/I2C) |
| CAN | CAN 2.0B |
| Core Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (Extended, E grade) |
| Series | dsPIC 33F Motor Control |
| Automotive Qualification | AEC-Q100 (per distributor listing) |
| DSP Features | Barrel shifter, single-cycle MAC, multiple internal buses |
| Boundary Scan | Yes |
| RoHS Status | RoHS compliant (per distributor listing) |
DSPIC33FJ64MC506A-E/MR 64-vqfn (9x9 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64MC506A-E/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-E/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64MC506A-E/MR is suitable for 6 applications: Brushless DC Motor Control, Uninterruptible Power Supplies (UPS), 3-Phase Induction Motor Drives, Switched Reluctance Motor Drives, Automotive Motor and Power Control Nodes, Industrial Automation and HMI Nodes.
Brushless DC Motor Control
The DSPIC33FJ64MC506A-E/MR is purpose-built for BLDC drives: its 40 MIPS DSP engine with single-cycle MAC executes field-oriented control current loops in the tens of microseconds, while the 11-timer bank generates complementary PWM with hardware dead-time insertion. The 8-channel DMA moves ADC current-sense samples into RAM without CPU intervention, keeping loop latency deterministic. In a typical FOC drive, the DSC reads phase currents via its on-chip ADC, runs Park/Clarke transforms in the DSP engine, and outputs six PWM signals to a three-phase inverter - the 64 KB Flash comfortably holds the full sensorless estimation stack plus a CAN 2.0B communication layer for networked drives.
Recommended
Uninterruptible Power Supplies (UPS)
Microchip explicitly positions the dsPIC33F Motor Control family, including the DSPIC33FJ64MC506A, as well-suited for Uninterruptible Power Supplies. A UPS requires simultaneous inverter control, battery charging management, and grid synchronization - all real-time tasks the 40 MIPS core with DSP acceleration handles from a single chip. The on-chip ADC samples the AC output waveform and battery voltage, the DMA engine streams results to memory, and the CAN or UART interface reports status to a supervisory controller. The extended -40C to +125C E-grade rating gives thermal margin inside sealed UPS enclosures where ambient temperatures near the power stage routinely exceed 85C, protecting long-term reliability of the control electronics.
Recommended
3-Phase Induction Motor Drives
Single- and 3-phase induction motor control is a headline application of the dsPIC33FJ64MC506A family per Microchip's product page. Induction motor vector control requires repeated sine/cosine computation and rotor-flux estimation, which the DSC's 17-bit x 17-bit single-cycle MAC and barrel shifter execute efficiently at 40 MIPS. Multiple timer modules produce the three complementary PWM phase pairs with programmable dead time, protecting the IGBT/MOSFET bridge. The 64 KB Flash stores the complete v/f or sensorless-FOC firmware, parameter tables, and a Modbus or CAN stack. The MR VQFN-64 package consolidates the controller, ADC front end, and communication into a compact footprint suitable for integrated motor-drive PCBs.
Recommended
Switched Reluctance Motor Drives
Microchip lists switched reluctance (SR) motor control as a supported application for the dsPIC33FJ64MC506A family. SR drives demand precise, per-phase current chopping with rapid torque reversal, requiring fast ADC sampling and asymmetric PWM generation - both available on this DSC via its multiple timers and DMA-serviced ADC. The 40 MIPS core executes per-phase torque-sharing algorithms in real time, and the 4 serial I/O peripherals allow an encoder or resolver interface alongside a UART diagnostics link. The extended temperature grade tolerates the hot environments typical of SR motor applications such as pumps, compressors, and industrial fans, where power-stage heating drives local ambient well above 85C.
Recommended
Automotive Motor and Power Control Nodes
Distributor data associates the dsPIC33F 33F family with AEC-Q100 automotive qualification, and the DSPIC33FJ64MC506A-E/MR's -40C to +125C extended range matches automotive ambient requirements for under-hood and powertrain-adjacent electronics. The on-chip CAN 2.0B module connects the node to the vehicle network for fault reporting and supervisory control, while the DSP engine runs motor or solenoid control loops. The 64-VQFN 9x9 mm package supports compact ECU designs, and Microchip's seamless migration path to PIC24 MCUs and dsPIC30F DSCs lets a platform share code across cost-down and up-spec variants. For formal automotive builds, obtain Microchip's PPAP documentation for this exact MPN.
Recommended
Industrial Automation and HMI Nodes
Beyond motion, the DSPIC33FJ64MC506A-E/MR serves as an industrial control node combining sensing, actuation, and communication. Its 4 serial I/O peripherals (UART, SPI, I2C) simultaneously interface with displays, sensors, and field buses, while boundary scan support aids manufacturing test of dense production boards. The 40 MIPS headroom runs PID control, protocol parsing, and data logging concurrently, with the 8-channel DMA keeping peripheral servicing off the CPU. Designers benefit from Microchip's MPLAB toolchain, free compiler evaluation, and broad third-party ecosystem. The VQFN-64 footprint with a robust ground-via array also provides the EMC behavior industrial cabinets demand when paired with proper input filtering and PCB guard zones.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64MC506A-E/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64MC506A-I/MR | DSPIC33FJ128MC506A-E/MR | DSPIC33FJ64GS406-E/MR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN |
| Flash Program Memory | 64 KB | 64 KB | 128 KB | 64 KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Primary Application Focus | Motor control (BLDC/induction/SR), UPS | Motor control (industrial temp range) | Motor control with larger firmware | Digital power conversion (SMPS/PFC) |
Key Differentiators
- Extended -40C to +125C operation in the same VQFN-64 footprint (vs DSPIC33FJ64MC506A-I/MR)
- Motor-control subfamily with CAN 2.0B on-chip (vs DSPIC33FJ64GS406-E/MR)
- Code headroom via footprint-identical 128/256 KB siblings (vs DSPIC33FJ128MC506A-E/MR)
Design Notes
The 64-VQFN (9x9) exposed pad must be soldered to a ground land pattern with an array of thermal vias (typically 4x4, 0.3 mm drill, plugged or tented) connecting to the internal ground plane. This pad is the primary thermal and ground return path - an unsoldered or voided exposed pad causes both elevated junction temperature and intermittent grounding problems. Follow the Microchip datasheet land-pattern drawing exactly, and confirm QFN coplanarity during reflow with a profile that satisfies the MSL rating printed on the moisture-barrier bag.
The core operates from a 3.0V to 3.6V supply. Decouple each VDD/AVDD pin pair with 100 nF X7R ceramics placed within 2 mm of the pads, plus bulk 10 uF at the board entry. When running at the full 40 MIPS with heavy I/O toggling, transient current demand rises sharply - size the 3.3V regulator for the peak, not average, current. For applications near the +125C extended limit, derate the regulator's thermal budget and verify the DSC junction stays within the E-grade absolute maximum using your PCB theta-JA estimate.
Two recurring mistakes with this part family: first, assuming the -I and -E grades are interchangeable in hot enclosures - the I grade tops out at +85C, so any design that can exceed that ambient must specify the -E suffix explicitly on the BOM. Second, mixing up the original DSPIC33FJ64MC506 with the A revision when ordering spares - the A revision is the corrected silicon and the version Microchip recommends; use the A suffix consistently across design, procurement, and firmware sign-off. Always consult the official dsPIC33FJ64MC506A errata and pinout tables before layout freeze.
Compliance Information
RoHS compliance and AEC-Q100/automotive association per RS Components and Globalspec distributor listings. REACH, halogen-free, and conflict-minerals status not stated in retrieved data - verify via Microchip's official environmental page for this exact MPN.
