DSPIC33EV256GM102-I/MM - 16-bit 5V 70 MIPS DSC | Microchip
MPN: DSPIC33EV256GM102-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.18 | $41.80 |
| 100 | $3.74 | $374.00 |
| 500 | $3.4 | $1,700.00 |
| 1,000 | $3.1 | $3,100.00 |
DSPIC33EV256GM102-I/MM Overview
A digital signal controller combines the computational power of a DSP with the peripheral set and ease of use of a microcontroller. In the embedded-systems hierarchy, the DSC sits between general-purpose MCUs and dedicated DSPs: it executes control loops and math-intensive algorithms (PID, Clarke/Park transforms) while integrating motor-control PWM, communication buses, and analog peripherals on a single die, making it a compact single-chip solution for real-time control.
Key features include a 5V-tolerant operating range (4.5V to 5.5V) that lets the chip drive MOSFET gates and interface with 5V industrial sensors without level shifting, 256 KB of self-programming ECC Flash for functional-safety-oriented designs, four DMA channels that offload data movement from the CPU, and seven timers. On-chip peripherals include a CAN 2.0B module for automotive and industrial networks, multiple UART, SPI, and I2C ports, a 10/12-bit ADC, and motor-control PWM outputs with complementary modes and dead-time insertion.
Architecturally, the dsPIC33EV core couples a 16-bit modified Harvard pipeline with DSP engine features: a 17-bit x 17-bit single-cycle hardware multiplier, 40-bit accumulator, barrel shifter, and dual operand fetch for efficient MAC loops. Dual PGECx/PGEDx pin pairs support In-Circuit Serial Programming (ICSP) and in-circuit debugging with standard Microchip tools such as ICD/PICkit-class programmers.
Typical applications include BLDC/ACIM/PMSM motor control for appliances and industrial drives, automotive body and auxiliary modules requiring CAN connectivity, switched-mode power supplies, and sensor-heavy systems exposed to harsh 24V industrial environments where 5V noise immunity matters.
Design tip: budget the VDD/VSS pair on pin 11/8 and the internal regulator capacitor pin per the datasheet layout guidance, and connect all PGECx/PGEDx pairs as matched pairs when wiring the programming header.
This page synthesizes verified distributor data, drop-in same-package alternatives, and practical design notes not found on the manufacturer product page. Pricing shown is an estimate as of 2026-09-26; confirm current stock and price with your distributor before ordering.
Drop-in alternatives for DSPIC33EV256GM102-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 DSPIC33EV256GM102-I/MM (same form factor and footprint) — differing in Package, Operating Temperature, Motor Control PWM, Supply Voltage, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV128GM102T-I/MM
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View Datasheet →DSPIC33EP64MC502-E/MM
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View Datasheet →DSPIC33EV128GM103T-I/M5
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View Datasheet →DSPIC33EP64MC202-I/SP
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View Datasheet →DSPIC33EV256GM002-E/SO
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View Datasheet →DSPIC33EV256GM102-I/MM Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EV 16-bit DSC core |
| Maximum CPU Speed | 70 MIPS |
| Instruction Word Width | 24-bit |
| Program Memory (Flash) | 256 KB (85.5K x 24) with ECC |
| RAM | 16 KB (16384 words) |
| Operating Voltage | 4.5 V to 5.5 V (5V class) |
| Primary Oscillator Input Range | up to 40 MHz (with PLL to 70 MIPS) |
| DMA Channels | 4 |
| Timers | 7 |
| CAN | CAN 2.0B controller |
| Communication Interfaces | UART, SPI, I2C, SENT support (family feature set) |
| Motor Control PWM | Complementary PWM outputs with dead-time control |
| DSP Engine | 17x17-bit single-cycle multiplier, 40-bit accumulator, barrel shifter |
| Programming/Debug | ICSP via PGECx/PGEDx pairs (multiple pairs supported) |
| Package | 28-QFN-S, 6x6 mm |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (industrial, I suffix) |
| Safety Qualification Support | Functional Safety (FuSa) part per DigiKey classification |
DSPIC33EV256GM102-I/MM Pin Configuration
| Pin 1 | MCLR — Master clear reset (external reset input / programming voltage) |
| Pin 2 | AN0/VREF+ — Analog input 0 / ADC positive voltage reference |
| Pin 3 | AN1/VREF- — Analog input 1 / ADC negative voltage reference |
| Pin 4 | AN2/PGD3 — Analog input 2 / programming data (pair 3) |
| Pin 5 | AN3/PGC3 — Analog input 3 / programming clock (pair 3) |
| Pin 6 | AN4 — Analog input 4 / comparator input |
| Pin 7 | AN5 — Analog input 5 / comparator input |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Primary oscillator input / external clock input |
| Pin 10 | OSC2/CLKO — Primary oscillator output / clock output (crystal mode) |
| Pin 11 | VDD — Positive supply (4.5V to 5.5V) |
| Pin 12 | PGD1/RPn — Programming data (pair 1) / remappable I/O |
| Pin 13 | PGC1/RPn — Programming clock (pair 1) / remappable I/O |
| Pin 14 | RPn/INT0 — Remappable I/O / external interrupt 0 |
| Pin 15 | RPn — Remappable peripheral I/O (UART/SPI/I2C/PWM) |
| Pin 16 | RPn — Remappable peripheral I/O (UART/SPI/I2C/PWM) |
| Pin 17 | RPn — Remappable peripheral I/O (UART/SPI/I2C/PWM) |
| Pin 18 | VCAP — Internal regulator capacitor connection (per datasheet) |
| Pin 19 | RPn/SCK1 — Remappable I/O / SPI1 clock |
| Pin 20 | RPn/SDI1 — Remappable I/O / SPI1 data in |
| Pin 21 | RPn/SDO1 — Remappable I/O / SPI1 data out |
| Pin 22 | RPn — Remappable peripheral I/O |
| Pin 23 | RPn/PWM1L — Remappable I/O / motor PWM output 1 low-side |
| Pin 24 | RPn/PWM1H — Remappable I/O / motor PWM output 1 high-side |
| Pin 25 | RPn/PWM2L — Remappable I/O / motor PWM output 2 low-side |
| Pin 26 | RPn/PWM2H — Remappable I/O / motor PWM output 2 high-side |
| Pin 27 | VDD — Positive supply |
| Pin 28 | VSS — Ground reference |
Typical Applications
DSPIC33EV256GM102-I/MM is suitable for 6 applications: BLDC/PMSM Motor Control Drives, Automotive Body and Auxiliary Modules, Appliance Control Boards, Switched-Mode Power Supplies and Digital Power, Industrial Sensor Nodes on CAN/RS-485 Backbones, Harsh-Environment Embedded Control (HVAC, Pumps, Compressors).
BLDC/PMSM Motor Control Drives
The 70 MIPS DSP engine with single-cycle 17x17 hardware multiplier and 40-bit accumulator executes field-oriented control (FOC) at switching-relevant loop rates, while complementary motor-control PWM with hardware dead-time insertion drives half-bridge gate stages directly. The 5V supply (4.5V-5.5V) interfaces natively with gate-driver logic and 5V Hall or encoder outputs common in appliance and industrial drives, removing level-shift components. Four DMA channels move ADC results to RAM without CPU intervention, keeping ISR jitter low for smooth torque control. Place current-shunt amplifiers close to the ADC pins and route PWM traces away from analog lines; the CAN 2.0B module links the drive to supervisory networks in industrial automation settings.
Recommended
Automotive Body and Auxiliary Modules
The CAN 2.0B on-chip controller with its message-acceptance filters handles in-vehicle networking for body electronics, wiper/pump control, and auxiliary actuator modules, while the ECC-protected 256 KB Flash and functional-safety classification support quality-oriented designs. The industrial -40C to +125C rating of the -I suffix covers under-hood-adjacent and passenger-compartment ambient extremes, and the 5V core tolerates the electrical noise typical of automotive 12V rails after local regulation. Dual PGECx/PGEDx programming pairs simplify production programming fixtures. Use the SENT-capable family peripheral set for sensor interfaces where defined. Note: confirm AEC-Q100 qualification of the exact temperature suffix with Microchip before committing to an automotive production program.
Recommended
Appliance Control Boards
Appliance controllers combine motor drive, user-interface sensing, and safety monitoring - precisely the mix the dsPIC33EV family targets per Microchip's positioning for harsh-environment appliance applications. The 5V-rated I/O connects directly to relay drivers, triac triggering logic, and 5V sensor arrays without external translation, and the 256 KB ECC Flash accommodates substantial UI state machines plus motor firmware on one chip. Seven timers cover keypad scanning, display multiplexing, and zero-cross detection simultaneously. The 28-QFN-S 6x6 mm footprint keeps the control PCB compact for built-in modules. For washing machines, dishwashers, and refrigeration compressors, porting from Microchip's public dsPIC33EV motor-control reference designs shortens firmware development significantly.
Recommended
Switched-Mode Power Supplies and Digital Power
Digital power conversion benefits from the fast PWM module with complementary outputs, dead-time, and trigger-to-ADC synchronization for cycle-by-cycle current sampling. The 70 MIPS core closes voltage-mode or average-current-mode loops with margin for compensator math, and the 40-bit accumulator keeps PI compensator accumulation accurate. The 5V domain directly drives gate-driver input logic in isolated AC-DC and DC-DC converters. Four DMA channels stream ADC sequences for telemetry without disturbing the control ISR. Layout guidance: keep the analog reference routing short, use the dedicated regulator capacitor pin per the datasheet, and reserve one PGEC/PGED pair on a programming header for field firmware updates of control coefficients and protection thresholds.
Recommended
Industrial Sensor Nodes on CAN/RS-485 Backbones
The combination of on-chip CAN 2.0B, multiple UARTs, and SENT-capable peripheral support makes this DSC a strong sensor-node processor for factory networks. The -40C to +125C rating survives panel and enclosure ambients, and 5V-tolerant I/O reads industrial switches and sensors directly. The 256 KB ECC Flash hosts protocol stacks plus local calibration and linearization tables, while 16 KB RAM buffers message queues and sample histories. Remappable RPn pins let UART, SPI, and PWM route to whichever package pins suit the connector layout, easing PCB placement. Use the hardware DMA on the ADC to timestamp vibration or current samples deterministically, and publish aggregate data over CAN at fixed cycle times for the supervisory PLC.
Recommended
Harsh-Environment Embedded Control (HVAC, Pumps, Compressors)
Equipment exposed to wide temperature swings, voltage transients, and EMI - HVAC rooftop units, circulation pumps, and compressor controls - benefits from the dsPIC33EV's 5V noise immunity and industrial temperature rating. The 70 MIPS core runs sensor-fusion and protection algorithms (over-current, stall detection, thermal derating) with fast reaction, and hardware PWM dead-time protects the inverter stage. On-chip brown-out and watchdog supervision maintain safe states during supply disturbances, and ECC Flash protects code integrity in electrically noisy cabinets. The compact 28-QFN-S package fits dense control boards. Verify surge immunity at the board level with TVS devices on external I/O, since protection is a system-level property rather than a chip feature.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV256GM102-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV128GM102T-I/MM | DSPIC33EP64MC502-E/MM | DSPIC33EV128GM103T-I/M5 |
|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S - same footprint | 28-pin EV-family package (verify suffix code) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Max Speed | dsPIC33EV 16-bit, 70 MIPS | dsPIC33EV 16-bit, 70 MIPS | dsPIC33EP 16-bit, 70 MIPS-class | dsPIC33EV 16-bit, 70 MIPS |
| Program Flash | 256 KB with ECC (85.5K x 24) | 128 KB (−50%) | 64 KB (−75%), no ECC | 128 KB (−50%) |
| Temperature Range | -40C to +125C (I suffix) | -40C to +125C (I suffix) | -40C to +125C (E suffix) | -40C to +125C (I suffix) |
Key Differentiators
- Largest Flash in the 28-QFN EV lineup (vs DSPIC33EV128GM102T-I/MM)
- ECC-protected program memory (vs DSPIC33EP64MC502-E/MM)
- 5V-native I/O reduces BOM in industrial drives (vs DSPIC33EV128GM102T-I/MM)
Design Notes
Wire the programming header using a matched PGECx/PGEDx pair only - ICSPCLK and ICSPDAT must come from the same pair (e.g., PGEC2 with PGED2), and connect all VDD and VSS pins to the header ground/power as Microchip's dsPIC33EV documentation requires. Reserve this header on production PCBs for field firmware updates. Keep the MCLR trace short with a 10 kOhm pull-up; estimated value, standard Microchip practice. The QFN exposed pad should be soldered to a grounded copper pour for thermal relief.
The device is a 5V-class part: provide a regulated 4.5V-5.5V rail with local 100 nF ceramic decoupling at each VDD pin plus 4.7-10 uF bulk per the datasheet guidance. Estimated typical practice values - confirm exact capacitor recommendations in the family datasheet power section. The internal regulator requires its designated capacitor pin wired exactly as the datasheet specifies; omitting it prevents startup. In motor-drive systems, separate the noisy 5V inverter logic rail from the controller rail or add an LC filter to keep ADC reference noise low.
Remappable RPn pins let you place UART, SPI, and PWM on convenient package pins, but avoid routing fast PWM edges parallel to the ADC analog inputs (AN0-AN5 on pins 2-7) to prevent kicked-back switching noise in current-sense readings. Use the hardware dead-time insertion rather than software delays for PWM complementary pairs - it is cycle-accurate and immune to ISR latency. For CAN networks, route the transceiver (e.g., MCP2551) within a few centimeters and stub the bus minimally.
Common mistakes: (1) mixing PGECx with a different PGEDx pair, which fails programming silently; (2) assuming the MM QFN is hand-solderable - it requires reflow or hot-air for reliable production; (3) sizing firmware above 128 KB and then substituting the cheaper DSPIC33EV128GM102T-I/MM, which will not link; (4) treating the -I suffix as automotive qualified - AEC-Q100 status of the exact orderable must be confirmed with Microchip before automotive production release.
Compliance Information
Captured distributor data (DigiKey, Mouser, Microchip product page) does not include explicit RoHS/REACH/AEC-Q100 statements for this exact orderable. Verify on Microchip's product page environmental section or request a material declaration certificate.
