DSPIC33EP512MC202-I/SP - 16-bit DSC 70 MIPS 512KB Flash | Microchip
MPN: DSPIC33EP512MC202-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.66 | $6.66 |
| 10 | $6.06 | $60.60 |
| 25 | $5.83 | $145.75 |
| 100 | $5.48 | $548.00 |
| 1,000 | $4.95 | $4,950.00 |
DSPIC33EP512MC202-I/SP Overview
A digital signal controller combines the computational architecture of a microcontroller with the DSP capability of a digital signal processor. In the product hierarchy, the dsPIC33EP sits between general-purpose MCUs and dedicated DSPs: it executes a modified Harvard 16-bit core with DSP engine extensions (40-bit accumulator, single-cycle MAC, modulo and bit-reversed addressing), making it a power-management-class device for control loops that need both decision logic and fast arithmetic.
Key features include the 70 MIPS dsPIC33E core, up to 85 general-purpose I/O-capable pins on this 28-pin variant, a high-speed MCPWM module purpose-built for motor control, QEI quadrature encoder interface support, and multiple UART/SPI/I2C serial channels. Per Mouser, the device integrates '16B DSC 512KB Flash 48KB RAM MCPWM QEI' resources, and per DigiKey it is classified as a dsPIC 33EP Microcontroller IC, 16-Bit, 70 MIPs, 512KB FLASH, 28-SPDIP.
The dsPIC33EP architecture includes an internal fast RC oscillator with PLL for flexible clocking up to 140 MIPS-equivalent internal instruction rates, a 3.0V to 3.6V operating supply, and in-circuit serial programming (ICSP) via any PGECx/PGEDx pin pair, which simplifies field upgrades through the MPLAB Snap or ICD programmers.
Typical applications are precision motor control (BLDC, PMSM, stepper), digital power supplies (PFC, LLC controllers), industrial sensing and instrumentation, and embedded audio/conditioning signal chains where PWM precision plus DSP math are required in one chip.
Design consideration: keep the VCAP/VDDCORE pin capacitor per the datasheet recommendation and pair any PGECx pin with the matching PGEDx pin when wiring ICSP, since pairs cannot be mixed.
This page synthesizes distributor pricing, same-footprint drop-in memory variants, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single citable reference.
Drop-in alternatives for DSPIC33EP512MC202-I/SP — 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 DSPIC33EP512MC202-I/SP (same form factor and footprint) — differing in Mounting Type, Core Architecture, Operating Temperature, Package, Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.12 / Unit
View Datasheet →DSPIC33EP128MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.94 / Unit
View Datasheet →DSPIC33EP64MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.1 / Unit
View Datasheet →DSPIC33EP32MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.57 / Unit
View Datasheet →DSPIC33EP256MC202-E/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC202-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC core |
| Instruction Rate | 70 MIPS |
| Clock Speed | 60 MHz |
| Flash Program Memory | 512 KB (170K x 24) |
| RAM | 48 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Typical Supply Voltage | 3.3 V |
| Package Type | 28-SPDIP (PDIP, 0.300 in / 7.62 mm) |
| Pin Count | 28 |
| Mounting Type | Through-Hole |
| Special Peripherals | MCPWM, QEI |
| Programming Interface | ICSP (PGECx/PGEDx pairs) |
| Temperature Range | Industrial (-40C to +85C, I suffix) |
| Product Family | dsPIC33EP 16-bit DSC |
| Data Bus Width | 16-bit |
| Debug Support | Yes (ICSP in-circuit debug) |
DSPIC33EP512MC202-I/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low) / programming voltage input |
| Pin 2 | AN0/VREF+/RB0 — Analog input 0 / positive voltage reference / port B bit 0 |
| Pin 3 | AN1/VREF-/RB1 — Analog input 1 / negative voltage reference / port B bit 1 |
| Pin 4 | PGED1/AN2/RB2 — Programming data 1 / analog input 2 / port B bit 2 |
| Pin 5 | PGEC1/AN3/RB3 — Programming clock 1 / analog input 3 / port B bit 3 |
| Pin 6 | AN4/RB4 — Analog input 4 / port B bit 4 |
| Pin 7 | VDD — Positive supply (3.0 V to 3.6 V) |
| Pin 8 | OSC1/CLKI/RA2 — Oscillator crystal input / external clock input / port A bit 2 |
| Pin 9 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output / port C bit 15 |
| Pin 10 | VCAP/VDDCORE — Core voltage regulator output - external storage capacitor required |
| Pin 11 | VSS — Ground reference |
| Pin 12 | RP15/RC0 — Remappable peripheral pin 15 / port C bit 0 |
| Pin 13 | RP14/RC1 — Remappable peripheral pin 14 / port C bit 1 |
| Pin 14 | AN9/RP13/RC2 — Analog input 9 / remappable pin 13 / port C bit 2 |
| Pin 15 | AN11/RP12/RC3 — Analog input 11 / remappable pin 12 / port C bit 3 |
| Pin 16 | PGD3/AN12/RP11/RC4 — Programming data 3 / analog input 12 / remappable pin 11 / port C bit 4 |
| Pin 17 | PGC3/AN13/RP10/RC5 — Programming clock 3 / analog input 13 / remappable pin 10 / port C bit 5 |
| Pin 18 | AN10/RP17/RC6 — Analog input 10 / remappable pin 17 / port C bit 6 |
| Pin 19 | AN8/RP16/RC7 — Analog input 8 / remappable pin 16 / port C bit 7 |
| Pin 20 | RTCC/RP0/RC8 — RTCC alarm output / remappable pin 0 / port C bit 8 |
| Pin 21 | RP1/RC9 — Remappable peripheral pin 1 / port C bit 9 |
| Pin 22 | VSS — Ground reference |
| Pin 23 | PGEC2/AN7/RB5 — Programming clock 2 / analog input 7 / port B bit 5 |
| Pin 24 | PGED2/AN6/RB6 — Programming data 2 / analog input 6 / port B bit 6 |
| Pin 25 | RP2/RB7 — Remappable peripheral pin 2 / port B bit 7 |
| Pin 26 | RP3/RB8 — Remappable peripheral pin 3 / port B bit 8 |
| Pin 27 | RP4/RB9 — Remappable peripheral pin 4 / port B bit 9 |
| Pin 28 | AVDD — Analog positive supply for analog peripherals |
Typical Applications
DSPIC33EP512MC202-I/SP is suitable for 6 applications: BLDC and PMSM Motor Control, Digital Power Supplies (PFC, LLC, Buck), Industrial Sensing and Instrumentation, Embedded Audio and Signal Conditioning, Robotics and Motion Platforms, Prototyping and Education Platforms.
BLDC and PMSM Motor Control
The DSPIC33EP512MC202-I/SP is purpose-built for precision motor control: its MCPWM high-speed PWM module generates complementary, dead-time-controlled drive signals for three-phase inverters, while the 70 MIPS DSP core with single-cycle MAC executes field-oriented control (FOC) loops at PWM-matched sampling rates. The QEI quadrature encoder interface hardware decodes position feedback without CPU overhead, and the 48KB RAM holds current observers, Park/Clarke transform coefficients, and speed PI state variables. The 512KB Flash leaves ample room for commutation tables, fault diagnostics, and field-updatable firmware. Power the core from a clean 3.3V rail with the VCAP capacitor per datasheet, and route PWM outputs away from analog encoder lines to preserve signal integrity.
Recommended
Digital Power Supplies (PFC, LLC, Buck)
Digital power conversion is a natural fit for the DSPIC33EP512MC202-I/SP because its high-resolution MCPWM module produces the precise duty cycles and phase-shifted edges that LLC and PFC topologies demand, and its 70 MIPS core closes voltage and current loops at tens of kHz with PI or predictive control. The single-cycle DSP MAC accelerates the notching, averaging, and RMS calculations needed for power-quality compliance, while the 16-bit ADC-peripheral ecosystem of the dsPIC33EP family samples sense signals synchronously with the PWM carrier. With 512KB Flash, engineers can store compensation tables across load ranges plus complete firmware update images. Keep ADC reference and PWM ground returns star-routed to avoid switching-noise coupling into loop measurements.
Recommended
Industrial Sensing and Instrumentation
In factory instrumentation, the DSPIC33EP512MC202-I/SP combines multi-protocol connectivity (UART, SPI, I2C) with DSP-grade math for sensor linearization, FFT-based vibration analysis, and RMS metering. The 70 MIPS core processes sampled data faster than comparable general-purpose MCUs, and the industrial -40C to +85C temperature grade (-I suffix) matches cabinet environments. The 28-pin through-hole SPDIP package is convenient for prototype rigs and legacy industrial carriers where hand-repairability matters, while 512KB Flash stores calibration curves per sensor channel. Use the on-chip RC oscillator with PLL to save a crystal where timing tolerance permits, and reserve a PGECx/PGEDx test pad pair for field re-programming and diagnostics through ICSP.
Recommended
Embedded Audio and Signal Conditioning
The dsPIC33EP512MC202-I/SP supports audio-adjacent signal conditioning thanks to its DSP engine: 40-bit accumulators and hardware MAC let it run biquad filters, AGC, and tone generation at audio sample rates while still handling system supervision. The 512KB Flash holds extensive filter coefficient sets and lookup tables, and the 48KB RAM buffers sample streams for delayed processing. UART and SPI ports interface with audio codecs and DACs, and the 60 MHz clock with internal PLL provides stable timing for synchronous audio clocks. For clean results, power analog circuitry from a low-noise linear regulator and keep codec data lines short; the DSC core itself adds no switching noise since it uses the same rail as logic - decouple VDD and VCAP pins per datasheet recommendations.
Recommended
Robotics and Motion Platforms
Robotics subsystems benefit from the DSPIC33EP512MC202-I/SP's blend of encoder interfacing and motor-drive PWM: the QEI hardware tracks wheel or joint encoders in hardware while the MCPWM module drives H-bridge stages, and the 70 MIPS core runs cascaded position/velocity/current loops plus kinematics for a single arm axis. The industrial temperature range and 3.0V to 3.6V supply integrate cleanly with standard logic rails, and the through-hole package simplifies repair in educational and prototype robots. With 512KB Flash, full trajectory tables and safety state machines fit on-chip without external memory. Route encoder signals with ground guard traces away from PWM switching nodes, and implement failsafe braking in firmware triggered by a supervisor or watchdog reset.
Recommended
Prototyping and Education Platforms
The 28-pin SPDIP through-hole package makes the DSPIC33EP512MC202-I/SP exceptionally friendly to breadboards, socketed evaluation rigs, and classroom labs: students can insert and replace the DSC without hot-air tools, and the 0.300-inch (7.62mm) DIP footprint matches universal prototyping boards. Underneath, it still offers professional-grade capability - 70 MIPS, 512KB Flash, 48KB RAM, MCPWM, QEI, and DSP instructions - so projects can graduate from blinking LEDs to motor control on one chip. Programming requires only MPLAB X IDE, the XC16 compiler, and an MPLAB Snap connected to any PGECx/PGEDx pair plus MCLR. Maintain a clean 3.3V regulated rail and standard 100nF decoupling at VDD, and expose all ICSP signals on a header for repeatable reprogramming.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512MC202-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MC202-I/SP | DSPIC33EP128MC202-I/SP | DSPIC33EP64MC202-I/SP | DSPIC33EP32MC202-I/SP | DSPIC33EP256MC202-E/SP |
|---|---|---|---|---|---|---|
| Package | 28-SPDIP (through-hole) | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 512 KB (170K x 24) | 256 KB | 128 KB | 64 KB | 32 KB | 256 KB |
| Core Performance | 16-bit, 70 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS | 16-bit, 70 MIPS |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| MCPWM / QEI Peripherals | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
| Temperature Range | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Extended (-40C to +125C) |
| ICSP Programming | Yes (PGECx/PGEDx pairs) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Maximum Flash in the 28-SPDIP footprint (vs DSPIC33EP256MC202-I/SP)
- Through-hole serviceability with DSP-grade performance (vs DSPIC33EP512MC202-I/MM)
- Extended temperature option without redesign (vs DSPIC33EP256MC202-E/SP)
Design Notes
The VCAP/VDDCORE pin (pin 10) connects to the internal core regulator and MUST have the datasheet-recommended storage capacitor to ground - omitting it or using the wrong value causes erratic resets and brown-outs. Power VDD from a regulated 3.0V to 3.6V rail; this 16-bit DSC is not 5V tolerant, so add series resistors or level shifters on any signal driven by 5V logic. Decouple VDD (pin 7) and AVDD (pin 28) with 100nF ceramics placed within a few millimeters of each pin.
ICSP programming requires matched PGECx/PGEDx pairs: per Microchip's programming support documentation, if PGEC2 carries ICSPCLK then ICSPDAT must connect to PGED2 - pairs cannot be mixed. All VSS pins must be grounded. Wire MCLR to the programmer, not just a pull-up, or in-circuit debug will fail. Remappable pin assignments (RPx) must be configured in firmware before peripherals appear on those pins; unassigned RPx pins default safely to inputs.
In motor-control layouts, route the MCPWM outputs away from analog inputs (AN0-AN13 on pins 2-6 and 14-19) to prevent switching transients from corrupting ADC samples used by the control loop. Use a solid ground plane with star return for the analog front end, and synchronize ADC sampling to the PWM carrier to sample at the midpoint of the PWM off-time, minimizing ripple-induced error. On through-hole boards, keep encoder and PGED/PGEC traces short and grounded-guarded for signal integrity.
Estimated: at 70 MIPS with peripherals active, typical DSC core current in this class is on the order of tens of milliamps, giving roughly 0.1-0.2 W dissipation - a through-hole SPDIP package handles this without heatsinking in ambient air. Verify against the datasheet IDD tables for your exact clock configuration; the dominant thermal concern in motor drives is usually the external inverter stage, not the DSC itself.
Compliance Information
Exact environmental certificate values for this MPN were not present in the verified data; confirm RoHS/REACH status on MicrochipDirect or the distributor environmental page.
