DSPIC33EP128MC506-E/MR - 16-bit 60 MIPS DSC 128KB Flash | Microchip
MPN: DSPIC33EP128MC506-E/MR ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DSPIC33EP128MC506-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, DSCs occupy the space between general-purpose MCUs and dedicated DSPs, making them the preferred device class for closed-loop motor control, digital power conversion, and real-time embedded control systems.
Key features include a modified Harvard, 16-bit RISC DSP core with single-cycle MAC and hardware divide support, hardware MCPWM modules capable of complementary and center-aligned PWM generation for three-phase inverters, integrated analog (comparators and operational amplifiers) that reduces external component count, and a CAN 2.0B controller for automotive and industrial fieldbus connectivity.
The dsPIC33EP architecture includes phase-locked loop clock multiplication, multiple internal fast RC oscillators, and a rich DMA-free interrupt-driven I/O model. The integrated op amps can be internally routed to PWM and ADC resources, enabling current-shunt amplification for field-oriented control (FOC) without external amplifiers.
Typical applications include brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) drives, digital power supplies and solar inverters, and industrial automation nodes requiring CAN networking. The extended temperature range and AEC-Q100 qualification suit under-hood and high-ambient industrial environments.
For design, ensure a clean 3.3V rail with low-ESR decoupling on every VDD/VSS pair, and use the exposed thermal pad for ground return. Configuring PWM dead-time and ADC trigger alignment is critical in FOC loops.
This page synthesizes distributor availability data, same-footprint drop-in alternatives, and practical design guidance not consolidated in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP128MC506-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 DSPIC33EP128MC506-E/MR (same form factor and footprint) — differing in Package, Core, Mounting Type, Peripheral Trigger Generator, Qualification.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MC506-I/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256MC506-E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC506-E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CK128MP506-E/MR
✅ Drop-In✓ In Stock
$4.42 / Unit
View Datasheet →DSPIC33CK32MP506-E/MR
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EP128MC506-E/MR Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E, 16-bit |
| Max CPU Speed | 60 MIPS (60 MHz) |
| Program Memory (FLASH) | 128 KB (43K x 24) |
| Data RAM | 16 KB |
| Operating Supply Voltage | 3 V to 3.6 V |
| Operating Temperature Range | -40C to +125C (E-grade) |
| Package | 64-VQFN (9x9 mm), exposed pad |
| Mounting Type | Surface Mount (SMD/SMT) |
| Number of Cores | 1 |
| PWM | MCPWM (motor control PWM) |
| Analog Peripherals | Op Amps, Comparators |
| Communication Interfaces | CAN, UART, SPI, I2C |
| Peripheral Trigger Generator | PTG |
| Qualification | AEC-Q100 qualified (automotive) |
| Family | dsPIC33EPXXXMC50X |
DSPIC33EP128MC506-E/MR 64-vqfn (9x9 mm), exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP128MC506-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 DSPIC33EP128MC506-E/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MC506-E/MR is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Supplies and Inverters, Automotive Body and Drive Modules, Industrial Automation and Robotics, Audio Signal Processing, Embedded Control and IoT Sensing Nodes.
BLDC / PMSM Motor Control
The DSPIC33EP128MC506-E/MR fits precision motor control because its MCPWM modules generate complementary, center-aligned PWM with programmable dead-time for three-phase inverters, while the integrated op amps amplify shunt-resistor current feedback without external amplifiers. In a field-oriented control (FOC) drive, the PTG triggers ADC conversions at PWM centers to sample phase currents away from switching edges, minimizing noise. A typical design runs the 60 MIPS core through Clarke/Park transforms and a PI current loop within each PWM period of 10-20 kHz. The comparators provide cycle-by-cycle over-current trip, protecting MOSFET bridges. Compared with a generic MCU, this deterministic DSP-plus-analog integration reduces loop latency and external BOM cost substantially.
Recommended
Digital Power Supplies and Inverters
For digital power conversion (LLC resonant converters, PFC stages, solar micro-inverters), the DSPIC33EP128MC506-E/MR provides the fast PWM resolution and deterministic interrupt latency needed for tight output regulation. The 60 MIPS core executes control-loop compensation math, while MCPWM supports phase-shifted and complementary topologies with adaptive dead-time. On-chip comparators implement fast over-current/over-voltage protection faster than any software interrupt path. Running from a 3.3V rail at -40C to +125C, the E-grade part suits converter environments near magnetics and heat sinks. Using the exposed-pad VQFN on a multilayer board keeps ground impedance low, which matters when PWM edges must not corrupt precision ADC feedback sampling.
Recommended
Automotive Body and Drive Modules
With AEC-Q100 qualification and a -40C to +125C range, the DSPIC33EP128MC506-E/MR targets automotive modules such as electric water pumps, HVAC blower drives, turbo actuators, and throttle control. The integrated CAN 2.0B controller interfaces directly to the vehicle network through an external transceiver, while the MCPWM and op-amp resources run the local motor loop autonomously. According to distributor data, the automotive-qualified -E/MR variant is specifically listed for 3.3V 64-pin QFN EP automotive use. Designers should budget for 12V-to-3.3V rail sequencing and transceiver fault handling, and can use the DSPIC33EP128MC506-I/MR as the same-footprint industrial-grade counterpart for non-vehicle variants of the same board.
Recommended
Industrial Automation and Robotics
In factory automation - servo drives, robot joint controllers, conveyor actuators - the DSPIC33EP128MC506-E/MR provides the compute density for multi-axis coordination while its peripherals handle real-time PWM and current sensing locally. The 128 KB FLASH accommodates FOC stacks plus a Modbus/CAN protocol layer, and 16 KB RAM holds control states and trajectory buffers. The extended temperature rating suits cabinets near drives and braking resistors where ambient exceeds 85C. Deterministic ADC triggering via PTG keeps current-loop sampling jitter below one PWM tick, critical for low-torque-ripple servo performance. Where more flash is needed for protocol stacks, the pin-compatible DSPIC33EP256MC506-E/MR doubles program memory without any PCB change.
Recommended
Audio Signal Processing
The dsPIC33E core's single-cycle MAC and DSP multiply instructions make the DSPIC33EP128MC506-E/MR suitable for embedded audio processing: active crossovers, equalization, echo cancellation, and audio effect units. At 60 MIPS the core executes dozens of biquadratic filter sections in real time at a 48 kHz sample rate. Its 12-bit ADC captures line-level signals after external anti-alias filtering, and PWM plus external reconstruction filters can produce analog output, or SPI/I2C can drive external audio codecs. The -E temperature grade benefits automotive audio amplifiers near heat sources. For pure audio designs the on-chip op amps can buffer signals, reducing external component count relative to general-purpose MCUs without DSP engines.
Recommended
Embedded Control and IoT Sensing Nodes
As a general-purpose embedded controller, the DSPIC33EP128MC506-E/MR combines 16-bit core throughput, generous 128 KB FLASH, and rich connectivity (UART, SPI, I2C, CAN) in a compact 9x9 mm QFN, suiting industrial sensing nodes, data loggers, and smart sensors that must survive harsh temperatures. The PTG peripheral trigger generator can run simple sensing sequences autonomously, offloading the CPU and cutting power consumption in duty-cycled battery-backed nodes. The 16 KB RAM buffers sensor histories for onboard analytics. Compared with a PIC16-class MCU, the DSC adds DSP math for sensor correction algorithms (FFT-based vibration analysis, calibration curves) without changing board footprint or 3.3V power architecture, making migration straightforward.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC506-E/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC506-I/MR | DSPIC33EP256MC506-E/MR | DSPIC33CK128MP506-E/MR | DSPIC33CK32MP506-E/MR |
|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) EP | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN - same class | 64-VQFN - same class |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| FLASH | 128 KB | 128 KB | 256 KB | 128 KB | 32 KB |
| Core Family | dsPIC33EP | dsPIC33EP - same | dsPIC33EP - same | dsPIC33CK (newer core) | dsPIC33CK (newer core) |
Key Differentiators
- Extended temperature and automotive qualification (vs DSPIC33EP128MC506-I/MR)
- Same-footprint flash upgrade path (vs DSPIC33EP256MC506-E/MR)
- Mature dsPIC33EP peripheral ecosystem (vs DSPIC33CK128MP506-E/MR)
Design Notes
The DSPIC33EP128MC506-E/MR requires a 3.0V to 3.6V supply. Provide one 0.1uF low-ESR ceramic capacitor at every VDD/VSS pin pair plus at least one bulk 10uF capacitor near the device. Multiple VDD pins in the 64-VQFN must all be connected - floating a power pin is a common failure cause. If the 3.3V rail comes from a buck converter, add an LC filter or ferrite bead to attenuate switching ripple that would otherwise couple into ADC measurements used by control loops.
Solder the exposed thermal pad of the 9x9 mm VQFN to a solid ground plane with a 3x3 or larger via array. This pad is the primary ground return; relying on perimeter pins alone raises ground impedance and worsens ADC accuracy and EMI. Route PWM traces away from analog feedback lines, and place shunt-resistor connections using Kelvin sensing directly to the op-amp input pins for accurate current measurement in FOC applications.
Configuration words set at programming time define oscillator source, watchdog, and code protection - verify them against your clocking scheme before production. The PLL requires specific input frequency ranges per the family datasheet (DS70000657J); an out-of-range crystal can prevent startup. When swapping to the -I/MR industrial variant, remember the +85C ceiling invalidates use in high-ambient automotive locations. Also confirm E-grade availability in the chosen package code before release, as temperature suffix and package code are ordered together.
Compliance Information
AEC-Q100 automotive qualification confirmed via datasheets.com part listing. RoHS/REACH/lead-free status not stated in the provided web data - verify on the Microchip product page or official compliance documentation before design-in.
