DSPIC33EP512MC502-H/SP - 60 MIPS 16-bit DSC 512KB Flash | Microchip
MPN: DSPIC33EP512MC502-H/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.9 | $6.90 |
| 10 | $6.3 | $63.00 |
| 100 | $5.6 | $560.00 |
| 500 | $5.1 | $2,550.00 |
| 1,000 | $4.75 | $4,750.00 |
DSPIC33EP512MC502-H/SP Overview
A digital signal controller combines the compute architecture of a microcontroller with the math acceleration of a DSP. Within the power-management hierarchy, a DSC sits at the top of the embedded control chain: MCU core -> DSP engine -> closed-loop control of power electronics such as brushless DC (BLDC) and permanent magnet synchronous motors (PMSM). The dsPIC33EP512MC502 extends this lineage with motor-control-specific peripherals.
Key features include a 16-bit 60 MIPS core with DSP multiply-accumulate instructions, 512 KB self-programmable Flash with ECC, 48 KB RAM, motor control PWM (MCPWM) with complementary outputs and dead-time insertion, quadrature encoder interface (QEI) inputs for rotor position feedback, and multiple serial peripherals (UART, SPI, I2C) plus a 10-bit ADC for current and voltage sensing loops.
Architecturally, the dsPIC33E core uses a modified Harvard pipeline with a 24-bit instruction word, hardware looping, and a 40-bit wide accumulator, allowing single-cycle MAC operations essential to field-oriented control (FOC) and other compute-intensive motor algorithms executed at servo-loop update rates.
Typical applications include BLDC and PMSM motor drives, switched-mode power supplies (SMPS) and digital power converters, sensor-less FOC inverters, and embedded industrial control nodes that benefit from the through-hole 28-SPDIP footprint for prototyping and low-volume production.
Design consideration: verify the -H temperature grade (0C to +70C per Microchip convention) matches your operating environment; the -I grade variant in the same package covers -40C to +85C for industrial deployments.
This page synthesizes distributor listings, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP512MC502-H/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 DSPIC33EP512MC502-H/SP (same form factor and footprint) — differing in Core Architecture, Mounting Type, Package, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP256MC502-H/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33EP512MC502-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.95 / Unit
View Datasheet →DSPIC33EP512GP502-H/SP
✅ Drop-In✓ In Stock
$3.72 / Unit
View Datasheet →DSPIC33EP128MC502-H/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EP64MC502-H/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC502-H/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC core |
| Maximum CPU Speed | 60 MIPS |
| Program Memory (Flash) | 512 KB (170K x 24) |
| RAM | 48 KB |
| Package | 28-pin SPDIP (0.300 in / 7.62 mm) |
| Mounting Type | Through Hole |
| Family | dsPIC33EP MC (Motor Control) series |
| Motor Control PWM | MCPWM with complementary outputs and dead-time control |
| Quadrature Encoder Interface | Yes (QEI) |
| ADC | 10-bit on-chip ADC |
| Communication Interfaces | UART, SPI, I2C |
| In-Circuit Serial Programming | ICSP (PGECx/PGEDx pairs) |
DSPIC33EP512MC502-H/SP Pin Configuration
| Pin 1 | MCLR — Master clear reset (active low), programming voltage input |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive voltage reference / port B bit 0 |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative voltage reference / 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 input / port B bit 3 |
| Pin 6 | AN4/QEA/IC7/CN6/RB4 — Analog input 4 / QEI phase A / input capture 7 / port B bit 4 |
| Pin 7 | VDD — Positive supply |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKO — Oscillator crystal output / clock output |
| Pin 11 | RP15/RB5 — Remappable peripheral pin 15 / port B bit 5 |
| Pin 12 | RP14/AN5/CN7/RB13 — Remappable peripheral pin 14 / analog input 5 / port B bit 13 |
| Pin 13 | RP13/AN6/OCFA/CN8/RB14 — Remappable peripheral pin 13 / analog input 6 / PWM fault A / port B bit 14 |
| Pin 14 | RP12/AN7/REFO/CN9/RB15 — Remappable peripheral pin 12 / analog input 7 / reference clock out / port B bit 15 |
| Pin 15 | VSS — Ground reference |
| Pin 16 | VDD — Positive supply |
| Pin 17 | PGED3/RP2/SDA2/T2CK/AN10/CN12/RB10 — ICSP data 3 / remappable pin 2 / I2C data 2 / timer 2 clock / analog input 10 / port B bit 10 |
| Pin 18 | PGEC3/RP3/SCL2/T3CK/AN11/CN13/RB11 — ICSP clock 3 / remappable pin 3 / I2C clock 2 / timer 3 clock / analog input 11 / port B bit 11 |
| Pin 19 | TMS/PGED2/RP4/AN9/CN11/RB9 — JTAG TMS / ICSP data 2 / remappable pin 4 / analog input 9 / port B bit 9 |
| Pin 20 | TCK/PGEC2/RP5/AN8/CN10/RB8 — JTAG TCK / ICSP clock 2 / remappable pin 5 / analog input 8 / port B bit 8 |
| Pin 21 | PGED1/RP6/RB7 — ICSP data 1 / remappable peripheral pin 6 / port B bit 7 |
| Pin 22 | PGEC1/RP7/RB6 — ICSP clock 1 / remappable peripheral pin 7 / port B bit 6 |
| Pin 23 | RP8/RB12 — Remappable peripheral pin 8 / port B bit 12 |
| Pin 24 | RP9/RB14A — Remappable peripheral pin 9 / port B bit |
| Pin 25 | VSS — Ground reference |
| Pin 26 | VDD — Positive supply |
| Pin 27 | RP11 — Remappable peripheral pin 11 |
| Pin 28 | RP10 — Remappable peripheral pin 10 |
Typical Applications
DSPIC33EP512MC502-H/SP is suitable for 6 applications: BLDC Motor Control, Digital Power Conversion (SMPS), PMSM Field-Oriented Control Drives, Industrial Embedded Control Nodes, Prototype and Educational Development, Renewable Energy Micro-Inverters.
BLDC Motor Control
Brushless DC motor drives are the primary application Microchip targets for the dsPIC33EP MC family. The DSPIC33EP512MC502-H/SP generates six-channel complementary MCPWM outputs with hardware dead-time insertion for the three-phase inverter bridge, while the QEI peripheral decodes hall or encoder feedback for rotor position. Its 60 MIPS core executes commutation and current-loop control with single-cycle DSP MAC instructions, and the 10-bit ADC samples phase currents synchronized to PWM cycles for low-noise sensing. With 512 KB of Flash, the controller holds commutation tables, field-oriented control code, and communication stacks simultaneously. The 28-SPDIP through-hole package suits development, serviceable industrial drives, and low-volume builds where hand rework is required.
Recommended
Digital Power Conversion (SMPS)
Switched-mode power supplies and digital power converters benefit from the DSPIC33EP512MC502-H/SP's precise PWM resolution and fast ADC sampling. The MCPWM module's complementary outputs with programmable dead time directly drive half-bridge and full-bridge topologies such as LLC, phase-shifted full bridge, and synchronous buck converters. The 60 MIPS core closes voltage- and current-mode loops in firmware with DSP-filter instructions, implementing digital compensators at tens of kilohertz update rates. 512 KB Flash accommodates soft-start, fault handling, PMBus-style communication, and condition monitoring code. The through-hole 28-SPDIP package simplifies prototyping of power stages on breadboard-compatible controllers before committing to surface-mount production layouts.
Recommended
PMSM Field-Oriented Control Drives
Permanent magnet synchronous motor drives using sensor-less or encoder-based field-oriented control are a flagship use case for the dsPIC33E MC family. The DSPIC33EP512MC502-H/SP performs the Clarke/Park transforms and PI current controllers with its single-cycle 16x16 MAC and 40-bit accumulator, updating at PWM-matched sampling rates. The QEI interface reads incremental encoder signals for precise rotor angle in servo-class drives, while the 10-bit ADC captures dc-bus voltage and two phase currents per cycle. 512 KB Flash supports sensor-less observer algorithms plus fallback commutation modes. The 28-SPDIP footprint enables rapid algorithm iteration on the exact production silicon before transitioning to the QFN or SOIC surface-mount equivalents.
Recommended
Industrial Embedded Control Nodes
Factory automation nodes, actuators, pumps, fans, and conveyors use the DSPIC33EP512MC502-H/SP as the local motion or process controller. UART, SPI, and I2C interfaces link it to gateways, sensors, displays, and EEPROM configuration storage, while remappable peripheral pins (RPx) let the layout assign serial functions flexibly on the 28-pin budget. The 60 MIPS core handles protocol parsing, PID loops, and diagnostics concurrently, and 512 KB Flash stores multiple parameter sets or field-updatable firmware images with headroom for expansion. The through-hole SPDIP package is favored in serviceable industrial equipment where boards are repaired rather than replaced, reducing lifetime cost for machinery with multi-year support commitments.
Recommended
Prototype and Educational Development
The 0.300-inch 28-pin SPDIP package of the DSPIC33EP512MC502-H/SP inserts directly into solderless breadboards and ZIF programming sockets, making it the preferred variant for university labs, training kits, and proof-of-concept builds targeting dsPIC33EP silicon. Developers exercise the identical 60 MIPS core, MCPWM, QEI, ADC, and ICSP peripherals used by surface-mount production parts, then port code unchanged to /MM or /SO packages. ICSP via any matched PGECx/PGEDx pair works with low-cost PICkit programmers, keeping the tooling budget minimal. The large 512 KB Flash removes memory anxiety during algorithm exploration, and the standard DIP footprint supports both hand wiring and socketed single-unit production fixtures.
Recommended
Renewable Energy Micro-Inverters
Solar micro-inverters and small wind converters require a controller that runs maximum-power-point tracking and grid-synchronized inverter control concurrently. The DSPIC33EP512MC502-H/SP allocates its 60 MIPS core between MPPT algorithms and the phase-locked loop plus current controllers driving MCPWM complementary outputs with dead time for the power stage. The 10-bit ADC samples panel voltage/current and grid waveforms, and 512 KB Flash stores firmware with OTA-update bootloaders and safety certification code. DSP instructions accelerate the notch filters and transform math needed for grid compliance. The SPDIP variant serves development and certification builds; volume production typically migrates to the electrically identical surface-mount package for automated assembly.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512MC502-H/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MC502-H/SP | DSPIC33EP512MC502-I/SP | DSPIC33EP512GP502-H/SP | DSPIC33EP128MC502-H/SP |
|---|---|---|---|---|---|
| Package | 28-SPDIP (0.300 in) | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Flash Memory | 512 KB (170K x 24) | 256 KB | 512 KB | 512 KB | 128 KB |
| RAM | 48 KB | 48 KB | 48 KB | 48 KB | 48 KB |
| Peripheral Focus | MCPWM + QEI (Motor Control) | MCPWM + QEI (Motor Control) | MCPWM + QEI (Motor Control) | CAN, CTMU, op amps, PTG (General Purpose) | MCPWM + QEI (Motor Control) |
| Temperature Grade | -H grade (per Microchip ordering code; confirm range in datasheet) | -H grade | -I industrial (-40C to +85C) | -H grade | -H grade |
| Drop-in Compatibility | Reference part | Pin-to-pin, firmware-compatible if code <= 256 KB | Pin-to-pin, fully identical silicon | Pin-to-pin, peripheral set differs (verify PWM/QEI needs) | Pin-to-pin, firmware-compatible if code <= 128 KB |
Key Differentiators
- Motor-control peripheral set (MCPWM + QEI) (vs DSPIC33EP512GP502-H/SP)
- Maximum family program memory in DIP package (vs DSPIC33EP256MC502-H/SP)
- Temperature grade trade-off (vs DSPIC33EP512MC502-I/SP)
Design Notes
Provide decoupling at every VDD/VSS pair: the 28-SPDIP has VDD/VSS on pins 7/8, 16/15, and 26/25. Place a 100 nF ceramic capacitor at each VDD-VSS pair as close to the pins as possible, plus one bulk 4.7-10 uF capacitor near the device. Even on through-hole breadboards, short capacitor leads matter because the 60 MIPS core draws fast transient currents that long power traces convert into supply bounce and ADC noise.
ICSP programming requires a matched PGECx/PGEDx pair: per Northern Software's device notes, if PGEC2 (pin 20) carries ICSPCLK then ICSPDAT must use PGED2 (pin 19), and the PGEC1/PGED1 pair on pins 22/21 works the same way. Mixing clock and data from different pairs is a common cause of 'device not recognized' programmer errors. Keep MCLR (pin 1) wired through a 10k pull-up and series resistor to the programmer header.
Verify the -H temperature grade against your thermal environment before layout release. Estimated: a DSC running at 60 MIPS in a 28-pin DIP dissipates on the order of tens to a few hundred milliwatts depending on VDD and clock configuration, so junction rise is modest; the constraint is the grade's ambient limit, not self-heating. For ambient environments beyond the -H range, substitute the -I grade part (DSPIC33EP512MC502-I/SP), which is footprint-identical.
Compliance Information
Compliance data not present in the provided verified web data. Confirm RoHS/REACH status on the Microchip product page or DigiKey listing before order release.
