DSPIC33EV256GM106-I/MR - 16-bit 70 MIPS 5V DSC | Microchip
MPN: DSPIC33EV256GM106-I/MR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DSPIC33EV256GM106-I/MR Overview
A digital signal controller combines the compute architecture of a microcontroller with DSP-style math capability, sitting in the system hierarchy between a general-purpose MCU and a dedicated DSP processor. The dsPIC33EV family extends this concept to 5V operation, allowing direct connection to industrial sensors, automotive transducers, and motor-drive feedback circuits without level shifting. This makes the DSC category especially valuable in harsh environments where 3.3V processors require additional translation circuitry.
Key features include 70 MIPS execution at 5V, 256 KB of ECC Flash for functional-safety-oriented designs, a CAN 2.0B controller for automotive and industrial networks, six motor-control PWM channels, four on-chip operational amplifiers, and a Charge Time Measurement Unit (CTMU) for capacitive touch and precise timing measurements. Up to 53 general-purpose I/O pins provide extensive peripheral connectivity.
Architecturally, the dsPIC33EV core uses a modified Harvard pipeline with DSP multiply-accumulate instructions, enabling single-cycle MAC operations for filter and control-loop math. The integrated op amps offload external analog signal conditioning in current-sense and sensor front-end paths, reducing BOM cost in motor inverters.
Typical applications include BLDC and PMSM motor control, automotive body and sensor modules, appliance control boards, and industrial automation nodes where CAN, SENT, and robust 5V analog integration matter. The 5V Motor Control PIM (DS50002225) demonstrates this device in Microchip's DV330100 development platform.
Design consideration: the ECC Flash adds protection against single-bit errors but consumes read-margin; plan Flash usage with the ECC overhead in mind and decouple all VDD pins during layout.
This page synthesizes distributor availability data, pin-compatible family alternatives, and design guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EV256GM106-I/MR — 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 DSPIC33EV256GM106-I/MR (same form factor and footprint) — differing in Package, Peripherals, RAM, Operating Temperature, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesDSPIC33EV256GM106-I/MR Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EV 16-bit DSC |
| Max CPU Speed | 70 MIPS |
| Supply Voltage | 5 V |
| Flash Memory | 256 KB (ECC) |
| RAM | 16 KB |
| CAN Controller | Yes, CAN 2.0B |
| Communication Interfaces | CAN, I2C, SPI, UART |
| Motor Control PWM | 6 channels (MC PWM) |
| Op Amps | 4 on-chip operational amplifiers |
| CTMU | Yes (Charge Time Measurement Unit) |
| SENT Peripheral | Yes |
| General-Purpose I/O | 53 I/O |
| Package | 64-VQFN (9x9 mm), MR |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Bit Width | 16 bit |
DSPIC33EV256GM106-I/MR 64-vqfn (9x9 mm), mr Pin Configuration Guide
Pin configuration for DSPIC33EV256GM106-I/MR (64-vqfn (9x9 mm), mr 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 DSPIC33EV256GM106-I/MR.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV256GM106-I/MR is suitable for 6 applications: Three-Phase Motor Control (BLDC/PMSM), Automotive Body and Sensor Modules, Appliance Control Boards, Industrial Automation and Fieldbus Nodes, Capacitive Touch HMI Interfaces, Digital Power and LED Lighting Control.
Three-Phase Motor Control (BLDC/PMSM)
The DSPIC33EV256GM106-I/MR fits motor control because its six motor-control PWM channels drive a full three-phase inverter with complementary outputs and programmable dead-time, while the 70 MIPS core executes field-oriented control loops well above typical 10-20 kHz PWM frequencies. Its four on-chip op amps condition low-side shunt current feedback internally, removing external amplifier ICs and their offset/tolerance error from the sensing chain. The 5V supply interfaces directly with gate-driver and hall-sensor logic common in industrial drives, eliminating level translators. Microchip's 5V Motor Control PIM (DS50002225a) validates this topology on the DV330100 board. Trade-off: at 5V and 70 MIPS the controller dissipates modest power, but gate-drive stage efficiency dominates system thermal design, so budget PCB copper around the power stage rather than the DSC.
Recommended
Automotive Body and Sensor Modules
In automotive sub-systems such as touch control units, sensor interfaces, and body electronics, the DSPIC33EV256GM106-I/MR offers a CAN 2.0B controller for in-vehicle networking, SENT support for digital sensor protocols, and ECC-protected Flash that guards against single-bit memory upsets induced by electrical noise and vibration. The 5V core tolerates the noisy supply rails derived from 12V vehicle electrical systems, where 3.3V MCUs would need regulators and protection. The CTMU enables robust capacitive touch detection through gloves and wet conditions. Choose the -E extended-temperature variant (-40C to +125C) for under-hood or near-engine placements, since this -I grade is limited to -40C to +85C. Layout consideration: keep the CAN transceiver close to the CAN pins and route the bus away from PWM traces to meet EMC requirements.
Recommended
Appliance Control Boards
Home and commercial appliances combine motor loads, capacitive touch user interfaces, and noisy switching supplies - exactly the environment Microchip targets for the dsPIC33EV family. The DSPIC33EV256GM106-I/MR drives compressor or fan motors via its six MC PWM channels, reads capacitive touch buttons through the CTMU despite wet or gloved hands, and communicates over UART or I2C with display and Wi-Fi modules. Its 5V operation matches legacy appliance power trees and discrete component ecosystems, reducing BOM changes from older 5V designs. The 256 KB ECC Flash holds UI state machines, motor firmware, and OTA-style update headroom. Reliability in vibration and line-transient conditions is improved by the DSC's hardened design; still, add TVS protection on touch electrodes and snubbers on relay or triac loads to keep conducted emissions within limits.
Recommended
Industrial Automation and Fieldbus Nodes
As an industrial control node, the DSPIC33EV256GM106-I/MR bridges CAN fieldbus traffic with local actuator control: the CAN 2.0B peripheral handles network frames while UART/SPI/I2C connect to local sensors, displays, and expanders. The 70 MIPS core with DSP MAC instructions runs PID loops, digital filters, and FFT-based condition-monitoring algorithms on 4-20 mA-adjacent signal chains conditioned by the four internal op amps. The 53 GPIO lines drive relays, optocouplers, and status indicators directly at 5V logic levels common in panel wiring. Industrial cabinets routinely reach 60-70C ambient; the -40C to +85C industrial grade of this -I part covers this, but derate internal op amp specs near the top of range and verify junction temperature using theta-JA from the datasheet with your actual PCB copper area.
Recommended
Capacitive Touch HMI Interfaces
The CTMU (Charge Time Measurement Unit) on the DSPIC33EV256GM106-I/MR measures charge time with sub-picosecond-class resolution, enabling capacitive touch keys, sliders, and proximity sensing without dedicated touch controller ICs. Combined with 53 GPIO for LED backlighting, buzzer outputs, and relay drives, a complete human-machine interface can be built on one chip. The 5V operation improves signal-to-noise ratio for touch electrodes behind thick glass or plastic overlays - a frequent requirement in appliance and industrial panels. Microchip documents this usage in the family datasheet's CTMU sections; the 4 on-chip op amps can alternatively be repurposed as sensor amplifiers in resistive-touch or analog-joystick designs. Firmware note: sample touch channels sequentially with automatic scan mode and apply drift-compensation baselining to survive temperature and humidity swings in real installations.
Recommended
Digital Power and LED Lighting Control
High-power LED drivers, telecom rectifiers, and PFC stages benefit from the DSPIC33EV256GM106-I/MR's high-resolution PWM and fast 70 MIPS control loop. The DSP MAC instruction set computes digital compensator equations (type-III or PR controllers) within one PWM period at switching frequencies up to 100-300 kHz. Six PWM channels cover interleaved topologies such as two-phase LLC or phase-shifted full bridges, while the op amps perform cycle-by-cycle current limiting with minimal propagation delay. The 5V rail directly drives common gate-driver input thresholds. This application stresses analog accuracy: use the internal references cautiously for precision regulation, calibrate in production, and route analog ground as a star from the DSC to the power stage. The ECC Flash adds firmware integrity protection required by some safety-oriented power designs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV256GM106-I/MR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM106-E/MR | DSPIC33EV256GM006-I/MR | DSPIC33EV128GM106-I/MR | DSPIC33EV64GM106-I/MR |
|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm, MR) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 256 KB (ECC) | 256 KB (ECC) | 256 KB (ECC) | 128 KB (ECC) | 64 KB (ECC) |
| RAM | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| CAN Controller | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B | CAN 2.0B |
| Temperature Range | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Motor Control PWM | 6 channels | 6 channels | 6 channels | 6 channels | 6 channels |
| GPIO | 53 | 53 | 53 | 53 | 53 |
Key Differentiators
- Four on-chip operational amplifiers reduce external analog BOM (vs DSPIC33EV256GM006-I/MR)
- Largest 256 KB ECC Flash in the pin-compatible 64-VQFN family (vs DSPIC33EV128GM106-I/MR)
- Extended-temperature sibling available for hot environments (vs DSPIC33EV256GM106-E/MR)
Design Notes
The 64-VQFN 9x9 mm package exposes a center thermal pad that must be soldered to a grounded copper pour. Connect ALL VDD and VSS pins as recommended in the Microchip datasheet and the NSDSP ICSP guidance - omitting a power pin pair is a common cause of flash-verify failures. Place 0.1 uF ceramic decoupling capacitors at every VDD/VSS pair within 2 mm of the pins, plus one bulk 10 uF per supply rail. For ICSP, pick one PGECx/PGEDx pair and route it to a header; PGEC2 must pair with PGED2, never mixed.
At 70 MIPS the internal clock reaches 140 MHz-class internal timing, so keep crystal/oscillator traces short and guard them with ground. When the four op amps are used for motor shunt-current sensing, route the shunt Kelvin sense lines as a differential pair directly to the op amp inputs, and keep the PWM output traces away from analog routing. The CTMU touch traces should be guarded with ground hatching on both layers and kept away from switching nodes to prevent false touches through capacitive coupling.
Two recurring issues: (1) temperature grade confusion - the -I suffix here means -40C to +85C; designs in enclosures that exceed 85C must switch to DSPIC33EV256GM106-E/MR (-40C to +125C), which is footprint-identical. (2) ECC Flash - error-correcting code protection is a family feature; do not assume erased-word reads behave like non-ECC parts in bootloaders, and reserve erase blocks per Microchip's programming spec. Always pull the MCLR pin through a 10K resistor and consider a diode clamp for ICSP robustness.
Compliance Information
Compliance data was not present in the provided web data. Verify RoHS/REACH status on the official Microchip product page or its environmental datasheet before procurement.
