DSPIC33EV256GM102T-I/SO - 16-bit 70 MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33EV256GM102T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.9 | $4.90 |
| 10 | $4.45 | $44.50 |
| 100 | $4.08 | $408.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.6 | $3,600.00 |
DSPIC33EV256GM102T-I/SO Overview
A digital signal controller merges a microcontroller (MCU) with DSP-style math capability inside a single chip, sitting in the product hierarchy between general-purpose 16-bit MCUs and dedicated DSP processors. Within a typical embedded system, the DSC performs both real-time control loops and signal processing, making the family a power-management and control IC as well as a computation device. The dsPIC33EV subfamily is specifically engineered for harsh electrical environments, tolerating 5V operation with enhanced noise immunity.
Key differentiating features include a 60 MHz (70 MIPS) core with DSP instruction extensions, single-cycle MAC and multiply operations, hardware error-correcting code (ECC) on the 256KB self-programming Flash for functional-safety designs, and six motor-control PWM channels. On-chip analog integration is unusually rich for this class: three operational amplifiers, a charge time measurement unit (CTMU), a 10-bit ADC, SENT peripheral support for automotive sensor interfaces, and a CAN 2.0B controller.
Architecturally, the dsPIC33E core uses a modified Harvard pipeline with 16-bit wide instructions, two 40-bit accumulators, and hardware divide support, letting developers implement field-oriented motor control or digital power loops without external DSPs. The 5V tolerance simplifies direct interfacing with automotive sensors, industrial transducers, and power stages that still run legacy 5V rails.
Typical applications include brushless DC and PMSM motor control in appliances, automotive body electronics and sensor nodes using SENT, industrial power supplies and solar micro-inverters, and battery-management systems. The PWM and op-amp integration reduces bill-of-materials cost in these designs.
A key design consideration is the VCAP/VDDCORE pin: a low-ESR 10 uF capacitor must be placed close to this pin for core regulation stability, and the ECC Flash adds slight write-latency during erase cycles that affects in-field firmware update timing.
This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and application-specific design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EV256GM102T-I/SO — 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 DSPIC33EV256GM102T-I/SO (same form factor and footprint) — differing in Package, Operating Temperature, RAM, Supply Voltage, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV256GM102-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV256GM002-E/SO
✅ Drop-In✓ In Stock
$7.18 / Unit
View Datasheet →DSPIC33EV256GM104-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV128GM102-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV64GM102-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33EV32GM102-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.35 / Unit
View Datasheet →DSPIC33EV256GM102T-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC core |
| Core Frequency | 60 MHz (70 MIPS) |
| Flash Memory | 256 KB with ECC |
| RAM | 16 KB |
| Supply Voltage | 5 V (2.5 V to 5.5 V) |
| CAN Controller | 1x CAN 2.0B |
| Motor Control PWM | 6 channels (MC PWM) |
| Operational Amplifiers | 3 on-chip op amps |
| SENT Peripheral | Yes (automotive SAE J2716 interface) |
| CTMU | Yes (Charge Time Measurement Unit) |
| ADC | 10-bit, multiple channels |
| Operating Temperature | -40C to +125C (I grade) |
| Package | 28-pin SOIC (SO), surface mount |
| Mounting Type | Surface Mount |
| Product Family Feature | Functional safety (FuSa) capable dsPIC33EV family |
| Programming/Debug Interface | ICSP via PGECx/PGEDx pairs |
| RoHS Status | Compliant |
DSPIC33EV256GM102T-I/SO Pin Configuration
| Pin 1 | MCLR — Master clear (reset) input, programming voltage in ICSP |
| Pin 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / ADC positive reference / change notification |
| Pin 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / ADC negative reference / change notification |
| Pin 4 | PGED3/AN2/SS1/CN4/RB2 — ICSP data (pair 3) / analog input 2 / SPI slave select |
| Pin 5 | PGEC3/AN3/CVREF/CN5/RB3 — ICSP clock (pair 3) / analog input 3 / comparator voltage reference |
| Pin 6 | VSS — Ground reference |
| Pin 7 | VDD — Positive supply (5V nominal) |
| Pin 8 | OSC1/CLKI/CN6/RA2 — Crystal oscillator input / external clock input |
| Pin 9 | OSC2/CLKO/CN7/RC15 — Crystal oscillator output / clock output |
| Pin 10 | VCAP/VDDCORE — Core regulator capacitor connection - requires local low-ESR 10 uF capacitor |
| Pin 11 | VSS — Ground reference |
| Pin 12 | PGED1/AN4/CN1/RB4 — ICSP data (pair 1) / analog input 4 / change notification |
| Pin 13 | PGEC1/AN5/CN0/RB5 — ICSP clock (pair 1) / analog input 5 / change notification |
| Pin 14 | AN6/CN8/RB6 — Analog input 6 / change notification |
| Pin 15 | AN7/CN9/RB7 — Analog input 7 / change notification |
| Pin 16 | AN8/CN10/RB8 — Analog input 8 / change notification |
| Pin 17 | AN9/CN11/RB9 — Analog input 9 / change notification |
| Pin 18 | AN10/CN12/RB10 — Analog input 10 / change notification |
| Pin 19 | AN11/CN13/RB11 — Analog input 11 / change notification |
| Pin 20 | PGED2/RPxx/RB12 — ICSP data (pair 2) / remappable peripheral pin / I/O |
| Pin 21 | PGEC2/RPxx/RB13 — ICSP clock (pair 2) / remappable peripheral pin / I/O |
| Pin 22 | AN12/CN14/RB14 — Analog input 12 / change notification |
| Pin 23 | AN13/CN15/RB15 — Analog input 13 / change notification |
| Pin 24 | RPxx/RF3 — Remappable peripheral pin (PWM/UART/SPI) / general I/O |
| Pin 25 | RPxx/RF2 — Remappable peripheral pin (PWM/UART/SPI) / general I/O |
| Pin 26 | RPxx/RA3 — Remappable peripheral pin / general I/O |
| Pin 27 | RPxx/RA4 — Remappable peripheral pin / general I/O (open-drain capable) |
| Pin 28 | RPxx/RA0 — Remappable peripheral pin / general I/O |
Typical Applications
DSPIC33EV256GM102T-I/SO is suitable for 6 applications: Brushless DC / PMSM Motor Control, Automotive Body Electronics and Sensor Nodes, Industrial Power Supplies and Digital Power Conversion, Home Appliances (Washers, Compressors, Fans), Battery Management Systems (BMS), Industrial Automation and Process Sensing.
Brushless DC / PMSM Motor Control
The DSPIC33EV256GM102T-I/SO is a strong fit for BLDC and PMSM drives: its 70 MIPS (60 MHz) DSP core executes field-oriented control loops with single-cycle MAC instructions, while the six motor-control PWM channels drive three-phase inverters with complementary or independent outputs. The three on-chip op amps amplify shunt-resistor phase currents directly, cutting external amplifier cost, and the 10-bit ADC samples them for current-loop feedback. Placed in a 5V domain, the DSC interfaces cleanly with gate-driver ICs such as the Microchip MCP14A series without level shifting. Quantified benefit: consolidating amplification, control and PWM in one 28-SOIC device typically removes two to three ICs from the drive board, and the ECC Flash protects control firmware against bit-flips in electrically noisy motor environments.
Recommended
Automotive Body Electronics and Sensor Nodes
Automotive body modules - pumps, fans, valves, position sensors - benefit from this part's SENT (SAE J2716) peripheral, CAN 2.0B controller, and -40C to +125C I-grade rating. The 5V-native I/O connects directly to legacy automotive sensors and LIN/CAN transceivers without level converters, while the CTMU measures resistive or capacitive sensor elements (liquid level, touch, position) with sub-nanosecond charge timing. The ECC Flash maintains firmware integrity over 15-year vehicle lifetimes. In a typical node, the DSC reads a SENT sensor on one pin, drives a PWM-controlled actuator via a low-side driver, and reports diagnostics on CAN - all within the 28-pin SOIC budget. Compared with a 3.3V general-purpose MCU, this eliminates translation ICs and improves transient immunity on the noisy 12V automotive rail.
Recommended
Industrial Power Supplies and Digital Power Conversion
For digitally controlled AC-DC supplies, LLC converters and solar micro-inverters, the 70 MIPS DSP core closes voltage/current loops at switching frequencies well above 100 kHz, with the six PWM channels providing phase-shifted or complementary drive. The 5V operation tolerates the dirty ground environments typical of power stages, and the 10-bit ADC plus on-chip op amps handle current-shunt sensing for cycle-by-cycle current limiting. The 256KB ECC Flash accommodates state machines, compensation firmware and in-field update bootloaders simultaneously. Design consideration: use the PWM fault inputs to clamp outputs within 1-2 cycles during transients, and place the VCAP capacitor with short traces because core-rail ripple directly degrades ADC accuracy in high dv/dt power layouts. This single-chip approach rivals discrete C2000 solutions at lower system cost.
Recommended
Home Appliances (Washers, Compressors, Fans)
Appliance OEMs choose this DSC for compressor, blower and pump control because Microchip explicitly targets the harsh-environment appliance segment with the dsPIC33EV family. The 5V I/O survives the surge and EMI conditions near relay coils and switching loads; the sensorless FOC capability (70 MIPS with DSP MAC) removes Hall sensors from sealed compressors; and the CTMU supports capacitive touch user interfaces on the same chip. The 28-SOIC footprint fits compact single-sided control boards where 5V logic coexists with triac and relay drive circuits. A typical firmware set runs sensorless FOC at 16 kHz PWM, capacitive-touch scanning, and fault diagnostics concurrently, with 256KB Flash leaving headroom for OTA field updates. The -40C to +125C rating also covers freezer compartments and motor-adjacent mounting positions.
Recommended
Battery Management Systems (BMS)
In 12V/24V battery management for e-mobility, UPS and industrial storage, the DSPIC33EV256GM102T-I/SO serves as the pack controller: CAN 2.0B communicates with chargers and vehicle ECUs, the CTMU performs cell-balance diagnostics and inter-cell resistance measurement via charge-time techniques, and the op amps buffer shunt-based pack-current sensing into the 10-bit ADC. The 5V domain is convenient because many BMS front-end ICs and MOSFET drivers still run 5V logic, avoiding level shifters. The ECC Flash protects safety-critical state-of-charge firmware. Quantified workflow: the 70 MIPS core executes coulomb-counting integration, protection thresholds and CAN messaging in a few percent of CPU budget, leaving headroom for isoSPI-style diagnostics or additional sensor fusion as the pack design evolves.
Recommended
Industrial Automation and Process Sensing
Factory-floor nodes - 4-20 mA transmitters, valve controllers, conveyor counters - exploit this part's 5V noise immunity, CTMU-based sensor excitation, and on-chip op amps for signal conditioning. The 256KB ECC Flash stores protocol stacks (Modbus over UART, CANopen via the CAN controller) plus calibration tables, and the 70 MIPS core performs filtering and linearization that would burden smaller MCUs. The -40C to +125C range suits outdoor cabinets and machinery-mounted enclosures, and the 28-SOIC keeps board area small for DIN-rail or in-head mounting. Design consideration: use the on-chip op amp as a 4-20 mA current-loop driver buffer with an external transistor stage, and exploit ECC Flash self-programming for parameter storage so no external EEPROM is required - a common BOM reduction of one IC per node.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV256GM102T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM102-I/SO | DSPIC33EV256GM002-E/SO | DSPIC33EV256GM104-I/SO | DSPIC33EV128GM102-I/SO | DSPIC33EV64GM102-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB (ECC) | 256 KB (ECC) | 128 KB (ECC) | 256 KB (ECC) | 128 KB (ECC) | 64 KB (ECC) |
| Core Performance | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz | 70 MIPS / 60 MHz |
| CAN 2.0B | Yes | Yes | Yes | Yes | Yes | Yes |
| Supply Voltage | 5 V (2.5-5.5 V) | 5 V | 5 V | 5 V | 5 V | 5 V |
| Operating Temperature | -40C to +125C (I grade) | -40C to +125C | -40C to +125C (E grade) | -40C to +125C | -40C to +125C | -40C to +125C |
Key Differentiators
- Maximum memory in the same 28-SOIC footprint (vs DSPIC33EV128GM102-I/SO)
- CAN 2.0B integrated for networked nodes (vs DSPIC33EV256GM104-I/SO)
- Automotive I-grade temperature at consumer-level cost (vs DSPIC33EV32GM102-I/SO)
- Tape-and-reel supply format for production (vs DSPIC33EV256GM102-I/SO)
Design Notes
The VCAP/VDDCORE pin (pin 10) connects to the internal 2.5V core regulator and MUST have a low-ESR ceramic capacitor (10 uF recommended) placed within a few millimeters of the pin with a short return to VSS. Omitting it or routing it long causes core-rail instability, spurious resets and corrupted Flash writes. Estimated: at 5V nominal and typical 70 MIPS operation, core current draw is in the tens of mA range, so an X5R/X7R dielectric with adequate DC-bias derating should be selected - a 0402 10 uF part can lose 30-50% capacitance at bias; verify the effective value in your capacitor vendor's bias curves.
Decouple each VDD pin with 0.1 uF ceramic placed within 2 mm of the pin, plus one bulk 4.7-10 uF capacitor near the supply entry. The six motor-control PWM outputs switch fast edges capable of coupling into the analog pins (AN0-AN13); route them on the opposite side of the board from analog traces and shunt-signal routing, and place a ground guard around the op-amp input pins. For ICSP programming, bring all needed PGECx/PGEDx pairs to a 5-pin header (MCLR, VDD, GND, PGEDx, PGECx) - remember that clock and data must come from the SAME pair.
Three recurring mistakes on this family: (1) attempting ICSP with ICSPCLK and ICSPDAT taken from different PGECx/PGEDx pairs - the device will not program (confirmed by Northern Software support notes); (2) forgetting that analog-capable pins default to analog mode at reset, so digital I/O reads require clearing the ANSEL register bit for that pin; (3) assuming Flash self-programming at run time is instant - ECC erase cycles block code execution from Flash on this family, so schedule erase/write operations during safe states in motor or power-control firmware to avoid loop-timing violations.
In 5V automotive and appliance environments, add series 100-1000 ohm resistors plus clamp diodes to VDD/VSS on lines leaving the board (SENT input, CAN via transceiver, sensor lines), and consider a ferrite bead on VDD. The dsPIC33EV is designed for harsh environments, but the 10-bit ADC reference should be tied to a quiet local supply - referencing it to a shared PWM-switched 5V rail injects switching ripple directly into conversions. Estimated: 50 mV of rail ripple on VREF yields roughly 13 LSB of error on a 0-5V, 10-bit scale.
Compliance Information
RoHS/lead-free status per standard Microchip active-catalog offering (I-temperature grade, SOIC). The family is marketed by Microchip as functional-safety (FuSa) capable; AEC-Q100 qualification level must be confirmed with Microchip for the exact ordering code. REACH and halogen status not stated in the retrieved distributor data.
