DSPIC33EP512MC202T-I/MM - 16-bit 70 MIPS DSC, 512KB Flash | Microchip
MPN: DSPIC33EP512MC202T-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.96 | $4.96 |
| 10 | $4.46 | $44.60 |
| 100 | $3.97 | $397.00 |
| 500 | $3.57 | $1,785.00 |
| 1,000 | $3.18 | $3,180.00 |
DSPIC33EP512MC202T-I/MM Overview
A digital signal controller combines the compute architecture of a digital signal processor with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, the dsPIC33E family sits above general-purpose 16-bit MCUs by adding hardware DSP multiply-accumulate, motor-control PWM, and quadrature encoder interface peripherals, making it a dedicated motor-control class of semiconductor device.
Key features include the MCPWM motor-control PWM module, QEI quadrature encoder interface, on-chip operational amplifiers and comparators, 5 timers, 4 DMA channels, 3 external interrupts, and IEEE 1149.2-compatible JTAG boundary scan with in-circuit and in-application programming. Supply voltage spans 3.0V to 3.6V with a 3.3V nominal rail, and the industrial-grade -I temperature suffix covers -40C to +85C operation.
The dsPIC DSC core integrates a DSP engine with hardware MAC, modulo and bit-reversed addressing, and dual 40-bit accumulators, allowing FIR filter and field-oriented control loops to close deterministically while C-language application code runs on the same core. The Tape-and-Reel -T suffix supports automated high-volume pick-and-place assembly.
Typical applications include precision Brushed/BLDC/PMSM and stepper motor control, digital power supplies, power factor correction, and industrial automation sensors that need deterministic DSP math with rich on-chip analog.
Design consideration: connect every VDD and VSS pin pair and decouple each with low-ESR ceramic capacitors, since even one unconnected power pin can cause programming and debug failures on this family.
This page synthesizes verified distributor specifications, drop-in same-family alternatives, pricing context, and practical design notes not consolidated in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP512MC202T-I/MM — 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 DSPIC33EP512MC202T-I/MM (same form factor and footprint) — differing in DMA Channels, Package, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP512MC202T-E/MM
✅ Drop-In✓ In Stock
$4.25 / Unit
View Datasheet →DSPIC33EP512MC202T-H/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512MC202T-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP512MC202-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256MC202T-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP512MC202T-I/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC with DSP engine |
| Core Performance | 70 MIPS (60 MHz clock) |
| Program Memory (Flash) | 512 KB (170K x 24-bit words) |
| Data RAM | 48 KB (49152 words) |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Package | 28-terminal QFN-S (MM), 6x6 mm |
| Mounting Type | Surface Mount |
| Pin Count | 28 |
| Timers | 5 |
| DMA Channels | 4 |
| External Interrupts | 3 |
| Motor Control Peripherals | MCPWM, QEI |
| Analog Peripherals | OpAmps, Comparators |
| Technology | CMOS |
| Debug / Programming | In-Circuit and In-Application Programming; JTAG (IEEE 1149.2 compatible) boundary scan |
| Hardware Breakpoints | 4 hardware breakpoints |
| Temperature Grade | -I (industrial) |
| Packaging | Tape & Reel (-T suffix) |
DSPIC33EP512MC202T-I/MM 28-terminal qfn-s (mm), 6x6 mm Pin Configuration Guide
Pin configuration for DSPIC33EP512MC202T-I/MM (28-terminal qfn-s (mm), 6x6 mm 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 DSPIC33EP512MC202T-I/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP512MC202T-I/MM is suitable for 6 applications: Precision BLDC / PMSM Motor Control, Digital Power Supplies and PFC, Industrial Automation and Robotics, Stepper Motor Drivers and Motion Control, Sensor Signal Processing and Data Acquisition, HVAC Compressor and Appliance Drives.
Precision BLDC / PMSM Motor Control
The DSPIC33EP512MC202T-I/MM fits three-phase BLDC and PMSM drives because its MCPWM module provides complementary PWM outputs with hardware dead-time insertion, while the QEI input accepts encoder feedback for closed-loop commutation. The 70 MIPS DSP core with hardware multiply-accumulate closes field-oriented control loops at PWM frequency without blocking the main application loop. On-chip op amps condition shunt-current feedback and comparators implement cycle-by-cycle overcurrent limiting, removing external analog front-end ICs. Firmware stored in 512KB Flash leaves ample headroom for FOC estimators plus a bootloader; the 6x6 mm QFN suits compact drive PCBs.
Recommended
Digital Power Supplies and PFC
In digital switch-mode power supplies and power factor correction stages, the device's deterministic DSP engine executes voltage- and current-loop compensators with fixed-cycle latency, while the MCPWM module generates phase-shifted or complementary PWM with precise dead time. The 3.0V to 3.6V core supply interfaces cleanly with 3.3V sensing and communication circuits. Four DMA channels stream ADC results into RAM without CPU intervention, sustaining high-rate control sampling. 512KB Flash accommodates multiple operating profiles, soft-start and fault-logging firmware, and comparators provide hardware fast-trip protection independent of software.
Recommended
Industrial Automation and Robotics
Factory automation nodes use the DSPIC33EP512MC202T-I/MM for coordinated motion, stepper drives, and sensor fusion where deterministic DSP math is required at low cost. Five timers support multi-axis pulse generation and scheduling, while three external interrupts capture fast limit-switch and encoder index events. The industrial -I temperature rating of -40C to +85C covers unconditioned cabinet environments. JTAG boundary scan (IEEE 1149.2 compatible) supports board-level production test, and in-application programming lets deployed machines receive firmware field updates without disassembly or reprogramming fixtures.
Recommended
Stepper Motor Drivers and Motion Control
Microstepping stepper controllers benefit from the device's high-resolution MCPWM outputs and 70 MIPS core that compute sine/cosine microstep tables in real time. The QEI peripheral reads attached encoders for lost-step detection and closed-loop correction, a key differentiator versus open-loop-only controllers. 48KB RAM holds motion profile queues and trajectory planning buffers, while the 512KB Flash stores multi-axis profile libraries. The 28-pin, 6x6 mm QFN keeps controller PCB area small enough for embedded stepper stages in lab automation, 3D printers, and medical dosing pumps requiring quiet, precise motion.
Recommended
Sensor Signal Processing and Data Acquisition
The on-chip operational amplifiers and comparators let this DSC amplify, level-shift, and threshold sensor signals without external analog ICs, while the DSP engine applies digital filtering - FIR/IIR via hardware MAC - to acquired data at rates unattainable by same-class general-purpose MCUs. Four DMA channels move conversion results to the 48KB RAM buffer for burst capture. Typical uses include vibration monitors, weigh scales, and ultrasonic flow sensing. The 3.3V I/O domain simplifies interfacing with standard analog front ends, and in-application programming allows post-deployment recalibration of filter coefficients and thresholds.
Recommended
HVAC Compressor and Appliance Drives
Appliance-grade compressor drives - variable-speed fans, rotary and scroll compressors - use the DSPIC33EP512MC202T-I/MM for sensorless FOC and power-factor-corrected front ends. Hardware comparators deliver overcurrent fault response faster than any software loop, and the MCPWM module generates the multi-phase PWM patterns needed for single-shunt or three-shunt current reconstruction. The industrial -40C to +85C rating tolerates enclosed appliance ambients, and in-circuit programming supports manufacturing-line firmware flashing through the standard programming interface, reducing test-station complexity for high-volume white-goods production.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP512MC202T-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP512MC202T-E/MM | DSPIC33EP512MC202T-H/MM | DSPIC33EP256MC202T-I/MM |
|---|---|---|---|---|
| Package | 28-QFN-S (MM), 6x6 mm | 28-QFN-S (MM), 6x6 mm - same | PQCC28 (QFN), 6x6 mm - same footprint | 28-QFN-S (MM), 6x6 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 512 KB | 512 KB | 512 KB | 256 KB |
| Core Performance | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz |
| 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 |
| Temperature Grade | -I (industrial, -40C to +85C) | -E (extended, -40C to +125C) | -H grade | -I (industrial) |
| Motor Control Peripherals | MCPWM, QEI, OpAmps, Comparators | MCPWM, QEI, OpAmps, Comparators | 5 timers, 4 DMA, 3 external interrupts (same peripheral set) | MCPWM, QEI, OpAmps, Comparators |
Key Differentiators
- Extended-temperature drop-in option (vs DSPIC33EP512MC202T-E/MM)
- Full motor-control peripheral set integrated (vs DSPIC33EP256MC202T-I/MM)
- Tape-and-Reel production packaging (vs DSPIC33EP512MC202-I/MM (tray))
Design Notes
Connect every VDD and VSS pair on the 28-QFN package; documentation for this family explicitly warns that programming may fail if even one power pin is unconnected. Decouple each VDD/VSS pair with 100 nF low-ESR ceramic capacitors placed within 2 mm of the pads, plus one bulk 4.7-10 uF capacitor near the supply entry. On the QFN, fan out the exposed die paddle to a grounded copper pour with an array of vias to improve both ground integrity and thermal performance.
Verify your compiled image size against the Flash boundary before substituting a lower-memory family member: the DSPIC33EP512MC202 offers 512KB (170K x 24-bit words), but the pin-compatible DSPIC33EP256MC202 provides only 256KB. Reserve space for a bootloader, EEPROM emulation, and data logging before choosing a smaller variant. Also confirm the temperature suffix matches your ambient: the -I grade covers -40C to +85C; use the -E/MM for environments approaching +125C such as sealed motor-drive enclosures.
Operate the device from a clean 3.3V rail within the specified 3.0V to 3.6V window. Motor-control designs frequently share the 3.3V rail with noisy inverter gate-drive circuits; use a ferrite bead or small LC filter between the supply and the VDD pins, and route analog sensing grounds (op amp and comparator references) as a Kelvin connection back to the die paddle. Keep the 70 MIPS clock domains away from PWM output traces carrying high di/dt to limit jitter on control-loop sampling.
Compliance Information
Compliance status was not stated in the provided verified web data; consult the official Microchip product page for current RoHS/REACH declarations. The dsPIC33EP512MC202 is a standard commercial/industrial part, not marketed as AEC-Q100 qualified.
