DSPIC33EP512MC806-I/MR - 70 MIPS 16-bit DSC, 512KB Flash | Microchip
MPN: DSPIC33EP512MC806-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $17.86 | $17.86 |
| 10 | $16.8 | $168.00 |
| 100 | $15.4 | $1,540.00 |
| 500 | $14.2 | $7,100.00 |
| 1,000 | $13.1 | $13,100.00 |
DSPIC33EP512MC806-I/MR Overview
A digital signal controller combines the computational architecture of a microcontroller with the math acceleration of a digital signal processor. Within the power-management hierarchy of embedded control, the DSC sits above general-purpose MCUs and alongside dedicated DSPs, providing single-cycle MAC (multiply-accumulate) instructions, hardware divide support, and DSP engine features while retaining MCU-style peripherals, interrupts, and flash-based code storage. This makes the dsPIC33E family a de facto standard for embedded motor control and digital power conversion.
Key features of the DSPIC33EP512MC806-I/MR include the 70 MIPS dsPIC DSC core with integrated DSP engine, dual CAN modules (the datasheet describes this device as a DSC with Dual Motor Control, Dual CAN), a high-speed PWM module tailored for motor control, and Peripheral Pin Select (PPS) that allows remapping of RPn/RPIn pins to many digital peripherals for maximum layout flexibility.
Architecturally, the dsPIC33E core executes an enhanced 16-bit instruction set with DSP-class addressing modes, supporting precision control loops for field-oriented motor control, digital power supplies (PFC, LLC), and digital audio processing. The large 512KB flash accommodates complex control firmware, bootloaders, and parameter tables, while the 53 KB RAM supports buffering for communication stacks and control-loop state.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) drives, solar inverters and digital power supplies, automotive and industrial CAN networking nodes, and high-performance embedded control systems requiring deterministic DSP math.
Design consideration: this device is reported to be more sensitive to cross-talk between the PGEC and PGED in-circuit programming lines than other PIC devices, so keep ICSP traces short and well-guarded to avoid programming failures.
This page synthesizes verified distributor pricing, drop-in alternatives within the same 64-VQFN footprint, and practical design notes not found on a single manufacturer or distributor page.
Drop-in alternatives for DSPIC33EP512MC806-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 DSPIC33EP512MC806-I/MR (same form factor and footprint) — differing in Package, CAN Modules, Communication Interfaces, Core, PWM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512MC806-E/MR
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512MC506T-I/MR
✅ Drop-In✓ In Stock
$4.2 / Unit
View Datasheet →DSPIC33EP256MC806-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC806-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC806-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC806-I/MR Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E 16-bit DSC core |
| CPU Speed | 70 MIPS |
| Program Memory Size | 512KB (170K x 24) Flash |
| SRAM | 53,248 bytes |
| Package | 64-VQFN (9x9 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| CAN Modules | 2 (Dual CAN) |
| Motor Control | Dual motor control capable |
| PWM | High-speed PWM (per datasheet: 16-bit MCUs and DSCs with High-Speed PWM) |
| Peripheral Pin Select | Yes (RPn/RPIn remappable pins) |
| Product Family | dsPIC33EPXXXMC806 (Dual Motor Control, Dual CAN) |
| Communication Interfaces | Dual CAN; UART/SPI/I2C per family datasheet |
| Packaging | Tray (MR suffix) |
DSPIC33EP512MC806-I/MR 64-vqfn (9x9 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP512MC806-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 DSPIC33EP512MC806-I/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512MC806-I/MR is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Conversion, Industrial CAN Networking Nodes, Automotive and Transport Subsystems, Embedded Sensor Fusion and Signal Processing, Robotics and Multi-Axis Motion Control.
BLDC/PMSM Motor Control
The DSPIC33EP512MC806-I/MR fits brushless DC and permanent-magnet synchronous motor drives because its 70 MIPS dsPIC33E core with single-cycle MAC executes field-oriented control (FOC) loops at rates far above the electrical frequency of typical motors. Per Microchip product data, the MC806 variant is specifically designated for dual motor control with a high-speed PWM module, enabling one controller to drive two motors or one motor with complementary PWM channels. In a typical topology, the high-speed PWM drives a three-phase inverter through gate drivers while the ADC samples phase currents for FOC transforms; the DSP engine handles Clark/Park math without CPU stalls. The 512KB flash holds the control firmware plus compensation tables, and the 53 KB RAM buffers commutation state. Unlike general-purpose MCUs, deterministic DSP execution keeps current-loop jitter low, directly improving torque ripple and acoustic noise performance.
Recommended
Digital Power Conversion
The DSPIC33EP512MC806-I/MR is well suited to digital power supplies, solar inverters, and PFC stages because the 70 MIPS core executes control loops at the 16-bit fixed-point precision these converters demand, and the high-speed PWM offers the resolution and dead-time control required by LLC, phase-shifted full-bridge, and totem-pole topologies. In a typical design the controller samples input/output voltage and inductor current through the ADC, computes the compensation law with DSP MAC instructions, and updates PWM duty cycle each switching cycle at frequencies from tens to hundreds of kilohertz. The dual CAN interface lets the power stage report telemetry on industrial networks without a second controller. The 512KB flash supports multiple firmware profiles and safe bootloading in the field. Trade-off: fixed-point coding requires scaling discipline, but the deterministic latency benefits EMI and transient response outweigh the learning curve.
Recommended
Industrial CAN Networking Nodes
The DSPIC33EP512MC806-I/MR serves industrial automation nodes because it integrates two CAN modules - per Microchip's own description, the MC806 is a 'DSC with Dual Motor Control, Dual CAN'. Having dual CAN on-chip lets one DSC bridge two bus segments, implement gateway/protocol-conversion functions, or serve both a machine network and a diagnostics network simultaneously without external CAN controllers, reducing BOM count and latency. The 70 MIPS headroom runs both CAN stack servicing and application control loops concurrently, while Peripheral Pin Select (RPn/RPIn remapping per the family datasheet) lets engineers place the CAN TX/RX functions on whichever physical pins suit the PCB layout. The 512KB flash accommodates CANopen or J1939 stacks plus application logic. Nodes benefit from the industrial -40C to +85C rating of the -I grade in unconditioned factory environments.
Recommended
Automotive and Transport Subsystems
The DSPIC33EP512MC806-I/MR fits non-safety-critical automotive and transport subsystems such as pump controllers, HVAC blowers, throttle-actuator pilots, and body-control motor drives. Dual CAN modules align with in-vehicle networking, and the 70 MIPS DSP core executes sensor-conditioning and motor-control algorithms (FOC, six-step commutation) with deterministic latency that general-purpose MCUs cannot guarantee under interrupt load. The 512KB flash supports OTA-style firmware updates with dual-image bootloaders - an important enabler for field-updatable automotive accessories. Note that the standard -I grade is rated -40C to +85C; for under-hood zones exceeding 85C ambient, use the pin-compatible DSPIC33EP512MC806-E/MR extended-temperature variant instead. Development effort is reduced by Microchip's motor-control and Data EEPROM Emulation (DEE) libraries in MPLAB Code Configurator, which accelerate parameter storage and tuning implementation.
Recommended
Embedded Sensor Fusion and Signal Processing
The DSPIC33EP512MC806-I/MR is a strong fit for embedded signal-chain products such as IMU-based orientation estimators, vibration monitors, and ultrasonic/sonar preprocessors. Its 16-bit DSP engine with single-cycle MAC and hardware divide executes FIR/IIR filters, FFTs, and complementary/Kalman-style sensor-fusion loops efficiently at 70 MIPS, keeping power and cost well below a discrete DSP-plus-MCU solution. The 53 KB of SRAM buffers multiple sensor streams, while Peripheral Pin Select allows UART, SPI, and I2C functions to be mapped to convenient RPn/RPIn pins when interconnecting several sensor ICs. The large 512KB flash stores calibration tables, compensation coefficients, and logging code. In a typical flow, sensors are sampled by the ADC, filtered in fixed point, and results are streamed over CAN or UART - all within one chip rated -40C to +85C for deployment in industrial monitoring cabinets.
Recommended
Robotics and Multi-Axis Motion Control
The DSPIC33EP512MC806-I/MR suits robotics controllers needing coordinated multi-axis motion: the dual-motor-control capability of the MC806 family plus dual CAN allows one DSC to close two current loops locally while exchanging trajectory setpoints over a CAN bus, a common architecture in modular robot joints. The 70 MIPS core executes FOC per axis at loop rates sufficient for responsive torque control, and the high-speed PWM provides the complementary outputs and dead-time insertion needed by three-phase bridges. With 512KB flash, trajectory planners and homing/limit logic coexist with the real-time loops; the 53 KB RAM holds ring buffers for trajectory streaming. Design consideration: keep PGEC/PGED ICSP traces short and isolated from PWM nets, as this device is documented to be more sensitive to programming-line cross-talk than other PIC devices, which can complicate in-system reprogramming on assembled robot boards.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512MC806-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512MC806-E/MR | DSPIC33EP512MC506T-I/MR | DSPIC33EP256MC806-I/MR | DSPIC33EP128MC806-I/MR |
|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same | 64-VQFN (9x9) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Program Flash | 512KB (170K x 24) | 512KB (170K x 24) | 512KB (170K x 24) | 256KB | 128KB |
| CAN Modules | 2 (Dual CAN) | 2 (Dual CAN) | 1 (MC506 family) | 2 (Dual CAN) | 2 (Dual CAN) |
| Temperature Range | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Motor Control Capability | Dual motor control | Dual motor control | Standard MC (reduced peripheral set) | Dual motor control | Dual motor control |
Key Differentiators
- Dual CAN in the MC806 peripheral set (vs DSPIC33EP512MC506T-I/MR)
- Maximum flash in the same 64-VQFN footprint (vs DSPIC33EP256MC806-I/MR)
- Extended-temperature upgrade path (vs DSPIC33EP512MC806-E/MR)
Design Notes
ICSP/programming lines: independent development notes (northernsoftware.com) report that the dsPIC33EP512MC806 is more sensitive to cross-talk between the PGEC and PGED lines than other PIC devices, which can cause programming failures such as inability to enter programming mode. Route PGEC/PGED as short, direct traces; add series resistors (typically around 100 ohm, verify against your programmer's guidance) and avoid running them parallel to high dV/dt motor-phase or PWM nets. On assembled motor-drive boards, provide test points on PGED/PGEC to debug in-system programming issues.
Exploit Peripheral Pin Select during layout: the family datasheet's Section 11.4 'Peripheral Pin Select' states that RPn/RPIn pins can be used by remappable peripherals with some limitations. Before locking the schematic, confirm which peripherals are PPS-mappable versus fixed-function in the family datasheet, then place CAN, UART, and PWM pins on the physical locations that minimize crossings with motor-phase routing. Decouple all VDD/VDDCORE pins per the datasheet's power-delivery guidance and keep the VDDCORE capacitor extremely close to the pin - core-supply integrity is a common cause of sporadic resets on dsPIC33EP designs.
Family flash sizing and temperature grade are encoded in the order code: verify the part you receive actually carries the -I (industrial, -40C to +85C) grade if your build is specified for it - the pin-compatible -E variant (to +125C) will function but costs more, while ordering flash-size variants (256/128/64KB) in the same 64-VQFN footprint is a frequent receiving-inspection mix-up. Also note there is no hardware EEPROM on dsPIC33EP devices; use Microchip's Data EEPROM Emulation (DEE) library in MPLAB Code Configurator to emulate EEPROM in flash, reserving erase-wear budget accordingly.
Compliance Information
Compliance status not stated in the provided Verified Web Data; confirm RoHS/REACH status on the Microchip product page or certificate of conformance before ordering.
