DSPIC33EP512GM306-E/MR - 16-bit 70 MIPS DSC 512KB Flash | Microchip
MPN: DSPIC33EP512GM306-E/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.2 | $62.00 |
| 100 | $5.5 | $550.00 |
| 500 | $4.9 | $2,450.00 |
| 1,000 | $4.4 | $4,400.00 |
DSPIC33EP512GM306-E/MR Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic interrupt architecture of a microcontroller. Within the power-management hierarchy, the DSC sits above general-purpose MCUs and below application-specific DSPs, making it the preferred choice for closed-loop motor control, digital power conversion, and sensor signal processing where tight control-loop latency matters.
Key features include 16-bit Modified Harvard architecture with DSP engine (single-cycle MAC, 40-bit accumulators, barrel shifter), 4-channel DMA, 13 timers, multiple PWM modules for motor control, input capture/output compare channels, and 2 quadrature encoder interfaces, as reported in the dsPIC33EPXXXGM3XX/6XX/7XX family datasheet (Microchip document 70000689).
The dsPIC33E core runs at up to 70 MIPS from an internal PLL, and the enhanced peripherals include op-amp and motor-control variants specific to the GM306 family. The E-grade temperature rating (-40C to +125C) and AEC-Q100 qualification make this device suitable for automotive and harsh-environment industrial systems, meeting TS 16949 manufacturing standards per distributor listings.
Typical applications include brushless DC and PMSM motor drives (field-oriented control), solar inverters and digital power supplies, automotive auxiliary actuators, and industrial automation nodes requiring simultaneous high-speed control loops and communication.
Design consideration: the VQFN exposed pad must be soldered to a grounded copper pour for thermal dissipation and noise performance; pay careful attention to VCAP stabilization capacitor placement per the family datasheet pin-connection requirements.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP512GM306-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 DSPIC33EP512GM306-E/MR (same form factor and footprint) — differing in Input Capture / Output Compare, Package, Quadrature Encoder Interfaces, Core Architecture, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512GM306-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.55 / Unit
View Datasheet →DSPIC33EP256GM306-E/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.35 / Unit
View Datasheet →DSPIC33EP256GM306-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256GM306T-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
Contact for price
View Datasheet →DSPIC33EP512MC306-E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512GM306-E/MR Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E Modified Harvard |
| Max CPU Speed | 70 MIPS (up to 60 MHz external clock per distributor listing) |
| Program Memory | 512 KB (170K x 24) Flash |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 64-VQFN (9x9 mm) Exposed Pad |
| Mounting Type | Surface Mount |
| Qualification | Automotive, AEC-Q100 |
| Timers | 13 timers |
| DMA Channels | 4 |
| PWM | Motor Control PWM |
| Input Capture / Output Compare | 8 IC / 8 OC |
| Quadrature Encoder Interfaces | 2 QEI |
| Serial Interfaces | 4 serial I/O ports (UART/SPI/I2C per family datasheet) |
| Instruction Set Features | DSP engine, barrel shifter, boundary scan |
| RoHS Status | Compliant |
DSPIC33EP512GM306-E/MR 64-vqfn (9x9 mm) exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP512GM306-E/MR (64-vqfn (9x9 mm) exposed pad 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 DSPIC33EP512GM306-E/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512GM306-E/MR is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Conversion, Automotive Auxiliary Systems, Industrial Automation and Robotics, Sensor Signal Processing, Battery Management and Charging Systems.
Brushless DC / PMSM Motor Control
The DSPIC33EP512GM306-E/MR is purpose-built for field-oriented control of BLDC and PMSM machines: its 70 MIPS DSP core executes single-cycle MAC instructions, while dedicated motor-control PWM modules and 2 quadrature encoder interfaces provide rotor-position feedback at loop rates unachievable by general-purpose MCUs. In a typical FOC drive, the ADC samples phase currents every PWM cycle and DMA transfers results without CPU intervention, keeping current-loop jitter minimal. The 8 input-capture and 8 output-compare channels support sensorless BEMF techniques and complementary commutation logic. The exposed-pad VQFN improves thermal performance near power stages. The AEC-Q100 E-grade rating (-40C to +125C) suits automotive pumps, fans, and traction auxiliaries.
Recommended
Digital Power Conversion
For LLC resonant converters, PFC stages, and solar micro-inverters, the DSPIC33EP512GM306-E/MR offers the deterministic timing digital power demands: high-resolution PWM with dead-time control, ADC-to-PWM direct triggering, and 4 DMA channels that move conversion results off the data bus without loop-timing penalties. The 70 MIPS core sustains control-loop bandwidths above audible range while executing compensation math with DSP MAC instructions. Its 3.0-3.6 V supply simplifies biasing from auxiliary rails, and the 64-VQFN footprint keeps gate-drive signal routing short. Firmware-based control also enables adaptive schemes - burst mode, phase shedding, frequency foldback - without hardware changes, and 512 KB Flash accommodates extensive protection state machines and comms stacks.
Recommended
Automotive Auxiliary Systems
The AEC-Q100 qualification and TS 16949 manufacturing lineage of the DSPIC33EP512GM306-E/MR make it a fit for automotive auxiliary electronic modules: electronic water pumps, turbocharger actuators, HVAC blowers, and lighting control. The E-grade -40C to +125C operating range covers under-hood ambient extremes, while 512 KB Flash retains room for OEM-specific diagnostics, UDS/K-Line communication stacks, and functional-safety monitoring code. Dual QEI interfaces handle dual-motor positioning tasks such as headlamp leveling pairs. Multiple UART/SPI/I2C ports connect to LIN/can-adjacent transceivers. Because the family is a long-running Microchip automotive line, availability and documentation continuity support multi-year production programs with stable second-tier distribution.
Recommended
Industrial Automation and Robotics
In factory automation nodes, the DSPIC33EP512GM306-E/MR serves as a motion-axis controller: the DSP engine runs PID/FOC loops while 2 QEI interfaces decode incremental encoders, 8 input captures timestamp events, and 4 serial ports bridge to drives, HMIs, and higher-level PLCs. Four DMA channels keep multi-channel ADC sweeps and UART traffic off the interrupt path, preserving deterministic cycle times critical for synchronized multi-axis motion. The 13-timer bank schedules coordinated PWM updates across outputs. Industrial environments with elevated enclosure temperatures are covered by the E-grade rating. The 512 KB Flash supports protocol stacks (Modbus, EtherCAT-adjacent gateways) plus application code with headroom for feature updates over the product lifecycle.
Recommended
Sensor Signal Processing
The DSP-enhanced core of the DSPIC33EP512GM306-E/MR excels at real-time sensor conditioning: single-cycle MACs accelerate FIR/IIR filtering, FFT-based spectral analysis, and demodulation for ultrasonic, vibration, and acoustic sensors. Integrated analog-friendly pins support ADC sampling of transducer front ends, and DMA streams data continuously without CPU babysitting. The 512 KB Flash stores long coefficient tables and calibration curves; the on-chip data RAM buffers windowed sample blocks. Boundary-scan and barrel-shifter features aid test integration. Typical deployments include predictive-maintenance vibration monitors, ultrasonic flow meters, and load-cell weighing systems, where the DSC performs both the signal chain math and the reporting/communication task in a single 64-VQFN 9x9 mm footprint.
Recommended
Battery Management and Charging Systems
Battery chargers and BMS slave boards benefit from the DSPIC33EP512GM306-E/MR's multi-channel ADC, precise PWM for switch-mode charging stages, and DSP headroom for coulomb counting and impedance spectroscopy algorithms. The 4 DMA channels log cell-voltage sweeps autonomously, and multiple UART/SPI/I2C ports link to isolation-capable stack monitors and host controllers. Charging profiles with temperature-dependent derating, fault logging, and safety cutoff state machines fit comfortably in 512 KB Flash with room for firmware updates in the field. The -40C to +125C E-grade rating accommodates battery packs exposed to solar, automotive, and outdoor energy-storage environments. Typical topologies include multi-phase buck chargers and bidirectional DC-DC stages with per-cycle current limiting.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512GM306-E/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512GM306-I/MR | DSPIC33EP256GM306-E/MR | DSPIC33EP512MC306-E/MR |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-VQFN (9x9) EP | 64-VQFN (9x9) EP - same | 64-VQFN (9x9) EP - same | 64-VQFN (9x9) EP - same |
| Flash Memory | 512 KB (170K x 24) | 512 KB | 256 KB | 512 KB |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +125C |
| AEC-Q100 | Qualified (Automotive) | Not automotive qualified (industrial grade) | Qualified (Automotive) | Qualified (E-grade) |
| Peripheral Focus | General GM family: PWM, 8 IC/8 OC, 2 QEI | Identical GM peripheral set | Identical GM peripheral set | MC motor-control peripheral variant |
Key Differentiators
- Extended -40C to +125C AEC-Q100 grade in this ordering code (vs DSPIC33EP512GM306-I/MR)
- Double the program memory at the same pinout (vs DSPIC33EP256GM306-E/MR)
- General-purpose GM peripheral mix with dual QEI (vs DSPIC33EP512MC306-E/MR)
Design Notes
The 64-VQFN exposed pad is not optional: per the dsPIC33EPXXXGM3XX/6XX/7XX family datasheet, the exposed pad must be soldered to a grounded PCB pad with an array of thermal vias. The pad provides both the primary ground connection and thermal relief. Use a 3x3 or larger via array (0.3 mm drills) under the pad, filled or tented, connected to the internal ground plane. Skimping on the exposed-pad joint is the most common field-failure cause for QFN-packaged DSCs, manifesting as intermittent ground faults or thermal shutdown during PWM bursts.
Power the device from a clean 3.3 V rail (3.0-3.6 V range). The family datasheet's minimum pin-connection list mandates VCAP stabilization: place the specified VCAP capacitor as close to the VCAP pin as physically possible, as it stabilizes the internal core regulator. Decouple each VDD pin with 0.1 uF ceramics plus bulk capacitance near the package. Separate AVDD/AVSS with an RC or ferrite filter from the digital rail when ADC accuracy matters - shared noisy grounds degrade analog results noticeably in motor-control designs with fast switching power stages.
Keep PWM outputs short and route them away from analog sense lines feeding the ADC; in FOC designs, gate-drive switching edges couple into phase-current sense traces and corrupt current-loop feedback. Use Kelvin grounding at shunt resistors and route sense pairs differentially to the ADC pins. Per Microchip development guidance (e.g., the MA330041-1 external op-amp PIM), external signal conditioning on current-sense inputs improves measurement fidelity when the internal analog path is insufficient. Reserve programming pins (PGD/PGC) and MCLR with series resistance for in-circuit debug access via ICSP/ICD headers.
Compliance Information
Distributor listings (Hotenda, Microchip USA) identify the part as Automotive, AEC-Q100, dsPIC33EP series, with TS 16949 manufacturing standards referenced. RoHS status per standard Microchip commercial grade shipping; REACH and conflict-minerals declarations not present in the provided data.
