DSPIC33EP512MC202-E/SP - 16-bit 60 MIPS DSC, 512KB Flash | Microchip
MPN: DSPIC33EP512MC202-E/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.55 | $5.55 |
| 10 | $5.05 | $50.50 |
| 25 | $4.92 | $123.00 |
| 100 | $4.55 | $455.00 |
| 1,000 | $4.16 | $4,160.00 |
DSPIC33EP512MC202-E/SP Overview
A digital signal controller combines the compute architecture of a microcontroller with DSP engine features such as multiply-accumulate instructions, dual data fetch, and modulo/bit-reversed addressing. Within the power-management hierarchy of embedded systems, the DSC sits above general-purpose MCUs and below full DSPs, offering deterministic real-time control plus math acceleration in one chip - the reason dsPIC33E devices dominate precision motor-control boards.
Key features include the 16-bit dsPIC33E core with DSP and enhanced peripherals, 512KB self-programmable Flash with ECC, 48KB RAM, multiple MCPWM (motor-control PWM) modules, quadrature encoder interface (QEI), and wide 3V to 3.6V operation. The E-grade temperature suffix qualifies the part for -40C to +125C environments, and the device is listed as AEC-Q100 automotive capable per distributor parametric data.
The architecture integrates a fast interrupt system, DMA, and an on-chip FRC oscillator, allowing single-chip designs for field-oriented-control (FOC) motor drives. The 24-bit instruction word improves code density versus 8-bit PICs, while hardware DSP support accelerates Clarke/Park transforms and PID loops.
Typical applications include brushless DC and PMSM motor control, switched-mode power supplies, automotive body and engine-adjacent modules, and industrial automation nodes. The SPDIP package suits through-hole prototyping and serviceable industrial boards.
Design consideration: the device requires a VCAP/VDDCORE capacitor on pin 27 for the internal 2.5V core regulator; place a low-ESR 10uF-class capacitor close to the pin per the Microchip datasheet.
This page synthesizes distributor pricing, drop-in family alternatives, pinout detail, and design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512MC202-E/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-E/SP (same form factor and footprint) — differing in Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512MC202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33EP256MC202-E/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC202-E/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC202-E/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC202-E/SP Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E (16-bit DSC) |
| Max CPU Speed | 60 MIPS |
| Program Memory Size | 512KB (170K x 24) Flash |
| RAM Size | 48KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 28-SPDIP (through-hole) |
| Mounting Type | Through Hole |
| PWM Modules | MCPWM (motor control PWM) |
| Quadrature Encoder Interface | Yes (QEI) |
| Program Memory Width | 24-bit instruction word |
| Peripherals | MCPWM, QEI, advanced analog |
| Qualification | Automotive AEC-Q100 (per distributor parametric data) |
| Packaging | Tube |
| Core Supply Regulator | Internal 2.5V core regulator with VCAP pin |
DSPIC33EP512MC202-E/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CN3/RB0 — Analog input 0 / positive voltage reference / change notification / port B bit 0 |
| Pin 3 | AN1/VREF-/CN2/RB1 — Analog input 1 / negative voltage reference / change notification / port B bit 1 |
| Pin 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / port B bit 2 |
| Pin 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index / port B bit 3 |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / capture input 7 / port B bit 4 |
| Pin 7 | AN5/QEB/IC8/CN7/RB5 — Analog input 5 / QEI phase B / capture input 8 / port B bit 5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI/CN12/RA2 — Oscillator crystal input / external clock input / port A bit 2 |
| Pin 10 | OSC2/CLKO/ECOUT2/CN13/RA3 — Oscillator crystal output / clock output / port A bit 3 |
| Pin 11 | VDD — Positive supply (3V to 3.6V) |
| Pin 12 | PGD/RB6 — ICSP data / port B bit 6 |
| Pin 13 | PGC/RB7 — ICSP clock / port B bit 7 |
| Pin 14 | VSS — Ground reference |
| Pin 15 | RP6/VREF-/CVREF/CN8/RB8 — Remappable pin RP6 / voltage reference / comparator reference / port B bit 8 |
| Pin 16 | RP7/CN9/RB9 — Remappable pin RP7 / port B bit 9 |
| Pin 17 | RP8/T1G/INT0/RB10 — Remappable pin RP8 / Timer1 gate / external interrupt 0 / port B bit 10 |
| Pin 18 | RP9/FLTA/REFO/RB11 — Remappable pin RP9 / PWM fault input / reference clock output / port B bit 11 |
| Pin 19 | RP10/U2TX/SCL2/INT1/RB12 — Remappable pin RP10 / UART2 TX / I2C2 SCL / interrupt 1 / port B bit 12 |
| Pin 20 | RP11/U2RX/SDA2/INT2/RB13 — Remappable pin RP11 / UART2 RX / I2C2 SDA / interrupt 2 / port B bit 13 |
| Pin 21 | RP12/U1TX/SCK1OUT/RB14 — Remappable pin RP12 / UART1 TX / SPI1 clock output / port B bit 14 |
| Pin 22 | RP13/U1RX/SCK1IN/RB15 — Remappable pin RP13 / UART1 RX / SPI1 clock input / port B bit 15 |
| Pin 23 | VDD — Positive supply (3V to 3.6V) |
| Pin 24 | RC1/AN10/RP2 — Analog input 10 / remappable pin RP2 / port C bit 1 |
| Pin 25 | RC0/AN9/RP3 — Analog input 9 / remappable pin RP3 / port C bit 0 |
| Pin 26 | RC2/AN8/RP4 — Analog input 8 / remappable pin RP4 / port C bit 2 |
| Pin 27 | RP5/VCAP/VDDCORE — Remappable pin RP5 / internal core regulator output - decouple to ground with low-ESR capacitor |
| Pin 28 | AVSS — Analog ground |
Typical Applications
DSPIC33EP512MC202-E/SP is suitable for 6 applications: BLDC/PMSM Motor Control, Switch-Mode Power Supplies, Automotive Body and Control Modules, Industrial Automation and Sensing Nodes, Precision Analog Front-End Control, Prototyping and Education Platforms.
BLDC/PMSM Motor Control
The DSPIC33EP512MC202-E/SP fits brushless DC and PMSM drives because its MCPWM peripherals generate complementary PWM pairs with hardware dead-time insertion while the 60 MIPS dsPIC33E core executes field-oriented control at 16 kHz-class loop rates. The quadrature encoder interface (QEI) reads position feedback without CPU overhead. Firmware implements Clarke/Park transforms using the core DSP multiply-accumulate instructions, sustaining deterministic interrupt latency for current-loop closure. Typical circuits pair the DSC with a three-phase gate driver (e.g., MCP802x or IR21xx class) and shunt-based current sensing into the on-chip ADC.
Recommended
Switch-Mode Power Supplies
In digital power supplies the device closes voltage- and current-mode loops in software using its fast ADC and MCPWM with adjustable dead time and fault inputs (FLTA). The 60 MIPS core supports average-current-mode control for buck, boost, and LLC topologies, and the 24-bit instruction word keeps control code compact within 512KB Flash. Compared with fixed-function controllers, the DSC enables adaptive compensation, soft-start profiles, and communication-based telemetry (UART/SPI/I2C). Design consideration: budget the control-loop ISR carefully - interrupt overhead at 60 MIPS supports switching frequencies into the hundreds of kHz for average-current schemes.
Recommended
Automotive Body and Control Modules
Distributor parametric data lists the DSPIC33EP512MC202-E/SP as AEC-Q100 automotive capable, and its E-grade -40C to +125C range matches under-hood-adjacent and powertrain-peripheral environments. The 512KB Flash accommodates large diagnostic stacks and UDS-style firmware, while MCPWM outputs drive lamps, pumps, and small actuators. The through-hole SPDIP format also eases rework in low-volume automotive service and test fixtures. Compliance note: verify the specific PPAP/documentation package with Microchip for your program tier before release, as qualification paperwork is ordered per part number suffix.
Recommended
Industrial Automation and Sensing Nodes
Factory nodes use the device to combine control, math, and connectivity: the 60 MIPS core processes sensor filtering with DSP instructions, while UART/SPI/I2C link to PLC networks and RS-485 transceivers. The 48KB RAM buffers data batches for edge analytics, and the -40C to +125C range survives enclosures near motors and heaters. The QEI interface directly reads rotary encoders on conveyor axes without external counters. Because the SPDIP package is socketed in many legacy industrial boards, the /SP variant supports in-field controller replacement and firmware refresh without SMT rework equipment.
Recommended
Precision Analog Front-End Control
The dsPIC33EP MC2xx family integrates op amps and advanced analog peripherals, letting one chip handle sensor excitation, filtering, and control decisions. The DSP engine executes FIR/IIR filtering and FFT-based diagnostics on the 60 MIPS core, while the 512KB Flash stores calibration tables and multi-protocol firmware. On the 28-pin MC202 variant the analog mix is leaner than on op-amp-equipped siblings, so designs typically add an external precision ADC via SPI; the fast core keeps oversampling and digital compensation loops deterministic. Use the on-chip reference-related configuration carefully and verify analog channel mapping in the datasheet pin diagram before layout.
Recommended
Prototyping and Education Platforms
The 28-pin SPDIP through-hole package is the decisive advantage for prototyping, university labs, and low-volume products: it plugs into DIP sockets, breadboard adapters, and PICkit-class ICSP programmers without hot-air or stencil tooling. The 512KB Flash lets students compile larger stacks (USB-free communication, motor control, display drivers) without hitting size limits, and the single 3.3V rail plus VCAP pin keeps the power design simple. Microchip's free MPLAB X IDE and XC16 compiler support the family with no license cost, lowering the total cost of a complete development bench to the programmer hardware alone.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512MC202-E/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512MC202-I/SP | DSPIC33EP256MC202-E/SP | DSPIC33EP128MC202-E/SP | DSPIC33EP32MC202-I/SO |
|---|---|---|---|---|---|
| Package | 28-SPDIP | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SOIC - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Flash Program Memory | 512KB (170K x 24) | 512KB (170K x 24) | 256KB | 128KB | 32KB |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +85C (I grade) |
| Supply Voltage | 3V to 3.6V | 3V to 3.6V | 3V to 3.6V | 3V to 3.6V | 3V to 3.6V |
| MCPWM / QEI Peripherals | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
Key Differentiators
- Maximum Flash in the 28-pin MC2xx family (vs DSPIC33EP256MC202-E/SP)
- Extended temperature grade for harsh environments (vs DSPIC33EP512MC202-I/SP)
- Integrated motor-control peripherals with DSP core (vs DSPIC33EP32MC202)
Design Notes
Estimated: the internal core regulator on pin 27 (VCAP/VDDCORE) requires a low-ESR capacitor to ground; the Microchip dsPIC33EP family datasheet specifies the allowed capacitance and ESR range in its electrical characteristics section - verify the exact value in the current datasheet revision before release. Place the capacitor within a few millimeters of pin 27 with a short return to VSS (pin 8/14). Core droop from a distant or high-ESR capacitor manifests as random resets or corrupted execution under load transients, and this failure mode is often misdiagnosed as firmware bugs.
Even in the through-hole SPDIP package, keep VDD (pins 11, 23) decoupled with 100nF ceramics plus bulk capacitance at the supply entry. Keep the crystal (pins 9/10) loop short with ground guarding between OSC1/OSC2 and nearby PWM traces; MCPWM switching edges couple strongly into high-impedance oscillator nodes. Route the PWM fault input (FLTA, pin 18) away from PWM outputs to prevent spurious fault latching, and use the internal pull-ups on MCLR per the programming tool reference design.
Three frequent mistakes with dsPIC33EP 28-pin parts: (1) treating the AVSS pin (28) as optional - connect it solidly to ground for ADC accuracy; (2) leaving AN pins 2-7 configured as analog when used as digital I/O, which reads them as low - clear the ANSELB bits; (3) forgetting that PGC/PGD (pins 13/12) must be reserved for ICSP on production boards, or adding isolation resistors when those pins drive external circuits. Consult the Microchip family reference manual section on peripheral pin select (PPS) before locking the pin map.
Compliance Information
Distributor parametric data (datasheets.com, updated 2024) lists this part as automotive AEC-Q100. Formal RoHS/REACH/lead-free certificates were not present in the provided verified data and must be confirmed on the Microchip product page.
