DSPIC33EP32MC202-E/SO - 16-bit 60 MIPS DSC 32KB Flash | Microchip
MPN: DSPIC33EP32MC202-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.85 | $38.50 |
| 25 | $3.55 | $88.75 |
| 100 | $3.2 | $320.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.75 | $2,750.00 |
DSPIC33EP32MC202-E/SO Overview
A digital signal controller combines the computational core of a microcontroller with the DSP engine of a digital signal processor. Within the power-management hierarchy of embedded systems, the dsPIC33E family sits in the class of 16-bit MCUs and DSCs used when control loops, transform math (FFT, PID), and precision timing must execute on a single chip. Microchip positions these parts specifically for high-performance, precision motor control systems.
Key features include the dsPIC33EP 16-bit core with integrated DSP multiply-accumulate instructions, four DMA channels, five timers, three external interrupt sources, motor-control PWM (MCPWM), on-chip op-amps and comparators, and a Peripheral Trigger Generator (PTG) for autonomous peripheral sequencing.
The -E temperature suffix grades the device for extended operation from -40C to +125C, making it suitable for motor-drive enclosures and industrial environments where the common -I (industrial, -40C to +85C) grade is insufficient. Supply voltage is 3.0V to 3.6V with a nominal 3.3V, with multiple low-power modes.
Typical applications include BLDC/PMSM motor control, digital power supplies (PFC, LLC), sensor signal conditioning using the on-chip op-amps, and industrial automation nodes.
Design tip: budget the VCAP/VDDCORE pin with the datasheet-specified low-ESR capacitor, as core regulation stability depends on it, and keep the MCPWM dead-time inserted in hardware rather than software for deterministic switching.
This page synthesizes distributor pricing, drop-in same-package alternatives, pinout data, and practical design notes not consolidated on the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP32MC202-E/SO — 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 DSPIC33EP32MC202-E/SO (same form factor and footprint) — differing in Package, Core Processor, Operating Temperature Range, Packaging, RAM Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP32MC202-I/SO
✅ Drop-In✓ In Stock
$3.46 / Unit
View Datasheet →DSPIC33EP32GP502T-E/SO
✅ Drop-In✓ In Stock
$3.42 / Unit
View Datasheet →DSPIC33EP256MC202-H/SO
✅ Drop-In✓ In Stock
$3.51 / Unit
View Datasheet →DSPIC33EP64MC202-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC202-E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32MC202-E/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33EP DSC core |
| Maximum Clock Frequency | 60 MHz |
| Core Performance | 60 MIPS (device listing); family core rated to 70 MIPS |
| Program Memory (Flash) | 32 KB (10.7K x 24) |
| RAM | 4 KB |
| DMA Channels | 4 |
| Timers | 5 |
| External Interrupts | 3 |
| Operating Supply Voltage | 3.0 V to 3.6 V (nominal 3.3 V) |
| Operating Temperature Range | -40C to +125C (E grade) |
| Package | 28-SOIC (SO), wide body WSOIC-28 |
| Mounting Type | Surface Mount |
| On-chip Peripherals | MCPWM, op-amps, comparators, PTG |
| Process Technology | CMOS |
| Programming/Debug Interface | ICSP (In-Circuit Serial Programming) |
DSPIC33EP32MC202-E/SO Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive ADC reference / CN2 / port RB0 |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative ADC reference / CN3 / port RB1 |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / CN4 / port RB2 |
| Pin 5 | AN3/IND/CN5/RB3 — Analog input 3 / comparator input / CN5 / port RB3 |
| Pin 6 | AN4/C1IN-/CN6/RB4 — Analog input 4 / comparator 1 inverting input / CN6 / port RB4 |
| Pin 7 | AN5/C1IN+/CN7/RB5 — Analog input 5 / comparator 1 non-inverting input / CN7 / port RB5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/CN12/RA2 — Oscillator crystal input / external clock input / CN12 / port RA2 |
| Pin 10 | OSC2/CLKO/CN13/RA3 — Oscillator crystal output / clock output / CN13 / port RA3 |
| Pin 11 | VDD — Positive supply (3.0V to 3.6V) |
| Pin 12 | RP15/OC1/INT0/RF3 — Remappable pin RP15 / output compare 1 / external interrupt 0 / port RF3 |
| Pin 13 | RP14/IC1/RF2 — Remappable pin RP14 / input capture 1 / port RF2 |
| Pin 14 | SOSCO/T1CK/CN0/RA4 — Secondary oscillator output / Timer1 external clock / CN0 / port RA4 |
| Pin 15 | VCAP/VDDCORE — Internal core regulator capacitor connection (connect datasheet-specified capacitor to VSS) |
| Pin 16 | RP0/RF0 — Remappable pin RP0 / port RF0 |
| Pin 17 | RP1/RF1 — Remappable pin RP1 / port RF1 |
| Pin 18 | RP18/RF5 — Remappable pin RP18 / port RF5 |
| Pin 19 | VDD — Positive supply (3.0V to 3.6V) |
| Pin 20 | VSS — Ground reference |
| Pin 21 | RP2/RB6/PGEC — Remappable pin RP2 / port RB6 / programming clock |
| Pin 22 | RP3/RB7/PGED — Remappable pin RP3 / port RB7 / programming data |
| Pin 23 | RP4/RB8/CN10 — Remappable pin RP4 / port RB8 / CN10 |
| Pin 24 | RP5/RB9/CN11 — Remappable pin RP5 / port RB9 / CN11 |
| Pin 25 | RP6/RB10 — Remappable pin RP6 / port RB10 |
| Pin 26 | RP7/RB11 — Remappable pin RP7 / port RB11 |
| Pin 27 | RP9/RB13 — Remappable pin RP9 / port RB13 |
| Pin 28 | RP11/RB15 — Remappable pin RP11 / port RB15 |
Typical Applications
DSPIC33EP32MC202-E/SO is suitable for 6 applications: BLDC/PMSM Motor Control, Digital Power Supplies (PFC/LLC), Sensor Signal Conditioning, Industrial Automation Nodes, Embedded Audio and Signal Processing, Automotive Auxiliary Systems.
BLDC/PMSM Motor Control
The DSPIC33EP32MC202-E/SO fits brushless DC and permanent-magnet synchronous motor drives because it pairs a 60 MIPS 16-bit DSP core with a dedicated motor-control PWM module offering hardware dead-time insertion and complementary outputs, plus quadrature encoder interface support for rotor position feedback. In a typical sensorless FOC drive the MCPWM module generates the inverter switching at 20-50 kHz while the ADC is triggered synchronously with the PWM centers to sample phase currents at their midpoint, minimizing ripple-induced measurement error. The on-chip op-amps can amplify shunt-current signals without external amplifiers, reducing BOM cost. The -E grade (-40C to +125C) suits enclosed motor housings where self-heating raises junction temperatures well above the industrial 85C ceiling.
Recommended
Digital Power Supplies (PFC/LLC)
For digitally controlled switch-mode power supplies, this DSC provides deterministic, cycle-accurate PWM via the MCPWM module and DSP multiply-accumulate instructions that execute control-loop compensation (PID, 2P2Z, 3P3Z) efficiently at switching frequencies of 100 kHz and above. The four DMA channels offload ADC result transfers without CPU intervention, keeping loop latency low and jitter minimal - critical for current-mode control stability. The 3.0V-3.6V supply and extended -40C to +125C rating match the elevated ambient conditions inside power electronics enclosures. Compared with an analog controller, firmware enables adaptive dead-time, soft-start sequencing, and digital telemetry over UART/CAN on the same chip.
Recommended
Sensor Signal Conditioning
The on-chip operational amplifiers and comparators of the DSPIC33EP32MC202-E/SO allow direct amplification and threshold detection of small sensor signals - strain gauges, thermocouples via external conditioning, or current shunts - before the 12-bit ADC digitizes them. The DSP core then applies filtering, linearization, and FFT-based spectral analysis in firmware, eliminating a separate analog front-end IC. With 4KB RAM, moderate-length FIR/IIR filters and calibration tables fit on-chip. The PTG (Peripheral Trigger Generator) can sequence ADC sampling and op-amp gain changes autonomously, reducing CPU load in multi-channel dataloggers operating across the full -40C to +125C range, such as industrial process-monitoring probes.
Recommended
Industrial Automation Nodes
In factory automation, the DSPIC33EP32MC202-E/SO serves as an intelligent actuator or sensor node combining motor control, UART/SPI/I2C communication, and local decision logic on one 60 MIPS chip. Five timers and three external interrupt sources support precise event timing and quadrature/encoder counting, while the DSP instructions accelerate FFT-based vibration diagnostics for predictive maintenance. The extended temperature rating tolerates control-cabinet heat, and ICSP in-circuit programming permits field firmware updates through a production test header. Its 28-SOIC through-hole-like hand-solderable footprint also suits retrofit boards where QFN packages complicate rework.
Recommended
Embedded Audio and Signal Processing
The 16-bit DSP engine with single-cycle MAC and dual operand fetch enables modest real-time audio tasks - active noise cancellation, tone generation, or filter banks - on the DSPIC33EP32MC202-E/SO without an external DSP. DMA-driven ADC/DAC transfers via SPI-connected audio codecs keep sample servicing deterministic at 48 kHz and below. While 32KB Flash and 4KB RAM cap algorithm complexity compared to larger dsPIC33EP parts, this footprint suffices for single-channel enhancement, siren/alert synthesis, and acoustic sensor processing. The -E extended temperature grade supports audio equipment installed in vehicles or outdoor cabinets where 85C-rated industrial parts would be marginal.
Recommended
Automotive Auxiliary Systems
Although this specific -E grade is not an AEC-Q100-qualified automotive part, its -40C to +125C operating envelope and robust peripheral set make it appropriate for auxiliary vehicle electronics - actuator drivers, pump controllers, lighting ballasts, and sensor modules - where qualification requirements allow extended-temperature industrial-grade silicon. The MCPWM module drives solenoids and H-bridges with hardware dead-time, the comparators provide over-current trip without software latency, and CAN via an external transceiver integrates the node into vehicle networks. Designers should verify qualification requirements per program before finalizing BOM selection.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP32MC202-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP32MC202-I/SO | DSPIC33EP32GP502T-E/SO | DSPIC33EP256MC202-H/SO | DSPIC33EP64MC202-E/SO | DSPIC33EP128MC202-E/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC (SO) | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB | 32 KB | 32 KB | 256 KB | 64 KB | 128 KB |
| Temperature Range | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +150C (H grade family) | -40C to +125C (E) | -40C to +125C (E) |
| Motor Control Focus (MCPWM) | Yes | Yes | GP variant - reduced MCPWM emphasis | Yes | Yes | Yes |
| Drop-in Compatibility | Reference | 100% pin-to-pin, identical die | Pin-to-pin; verify MCPWM code parity | Pin-to-pin; verify voltage/temp grade | Pin-to-pin, same family | Pin-to-pin, same family |
Key Differentiators
- Extended -40C to +125C temperature grade in the same footprint as the industrial part (vs DSPIC33EP32MC202-I/SO)
- Dedicated motor-control peripheral focus (vs DSPIC33EP32GP502T-E/SO)
- Memory-scalable pin compatibility within the same SOIC-28 footprint (vs DSPIC33EP64MC202-E/SO / DSPIC33EP128MC202-E/SO)
Design Notes
The VCAP/VDDCORE pin (pin 15) connects the internal 1.8V core regulator. Fit the datasheet-specified low-ESR ceramic capacitor (typically on the order of 10 uF) as close to the pin as possible; an unstable core rail is the most common cause of erratic resets on dsPIC33EP designs. Decouple each VDD pin (11, 19) with 0.1 uF ceramics plus bulk capacitance, and keep VSS (pins 8, 20) tied to a solid ground plane.
Estimated: the 28-SOIC wide-body package typically exhibits theta_JA around 80-100 C/W on a standard 4-layer board (verify the exact figure in the Microchip package outline section). At a worst-case 60 MIPS active current of roughly 40-60 mA from 3.3V, dissipation is about 0.13-0.2 W, giving an estimated junction rise of 10-20 C over ambient - comfortably within the +125C E-grade limit, but margin shrinks in sealed motor-drive enclosures; verify with your own board-level measurement.
Insert MCPWM dead-time in hardware, not software - software dead-time at 50 kHz PWM consumes CPU cycles and introduces jitter that degrades inverter efficiency and can cause shoot-through during interrupts. Also note that the Peripheral Pin Select (RPx) mapping must be configured before any remappable peripheral operates, and unlocked PPS writes are ignored after the initial configuration window unless PPS is deliberately unlocked.
Use the DSPIC33EP32MC202-E/SO ICSP header (MCLR, VDD, GND, PGEC/RB6, PGED/RB7) on every production PCB even if field programming is not planned; it also enables in-circuit debug. Route PGEC/PGED away from switching nodes of motor inverters to avoid corrupting programming sessions, and place the ICSP connector away from high-dv/dt traces.
Compliance Information
Compliance status not stated in the provided web data. Microchip standard-production parts of this family are generally RoHS-compliant, but verify on the official Microchip product page or its RoHS certificate before relying on it.
