DSPIC33EV256GM002-I/SS - 16-bit 70 MIPS 5V DSC | Microchip
MPN: DSPIC33EV256GM002-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.06 | $50.60 |
| 100 | $4.44 | $444.00 |
| 500 | $3.94 | $1,970.00 |
| 1,000 | $3.52 | $3,520.00 |
DSPIC33EV256GM002-I/SS Overview
A digital signal controller combines the compute capability of a DSP with the peripheral integration of a microcontroller. In the power-management hierarchy, the dsPIC33EV sits above general-purpose 8-bit MCUs and beside 16-bit MCU families, targeting math-intensive, noise-tolerant control loops. The 5V operation distinguishes this family from 3.3V MCUs, giving designers a wider noise margin in harsh industrial and automotive electrical environments.
Key features include the 16-bit dsPIC33E core running at 70 MIPS from an internal PLL, 256 KB of self-programmable Flash with ECC, DSP engine with a 40-bit accumulator, 17-bit x 17-bit single-cycle multiplier, dual 12-bit 1000 ksps ADCs, and multiple UART, SPI, and I2C serial ports. Peripheral Pin Select (PPS) allows remapping of digital peripherals onto flexible RPn pins, easing PCB routing.
The dsPIC33EV GM family is specified with functional safety (FuSa) support and enhanced on-chip features for harsh environments: the wide 4.5V to 5.5V supply tolerance, industrial-grade temperature rating, and robust motor-control peripherals such as the Motor Control PWM and quadrature encoder interface make it well suited to drives and solenoid control.
Typical applications include sensor-less and sensored BLDC/PMSM motor control, automotive body and touch control units, appliance motor drivers (fans, pumps, compressors), industrial power supplies and battery chargers, and solenoid/valve control where 5V signaling simplifies interfacing.
When designing with this device, use the VCAP pin with the specified external capacitor for the internal core regulator, and connect all VDD/VSS pairs plus AVDD/AVSS as required for ADC accuracy.
This page synthesizes distributor pricing, drop-in family alternatives, pinout data, and practical design notes not found on the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EV256GM002-I/SS — 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 DSPIC33EV256GM002-I/SS (same form factor and footprint) — differing in Operating Temperature, Core Architecture, Peripheral Pin Select, Package, Core Performance.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesDSPIC33EV256GM002-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 256 KB (85.5K x 24) |
| RAM | 16 KB |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| ADC Resolution | 12-bit |
| DMA Channels | 4 |
| Timers | 7 |
| DSP Engine | 17-bit x 17-bit single-cycle multiplier, 40-bit accumulator |
| Serial Interfaces | UART, SPI, I2C |
| Peripheral Pin Select | Yes (PPS, RPn remappable) |
| Functional Safety Support | Yes (FuSa) |
| In-Circuit Serial Programming | Yes (ICSP, multiple PGECx/PGEDx pairs) |
DSPIC33EV256GM002-I/SS Pin Configuration
| Pin 1 | MCLR — Master clear reset input (active low), programming voltage pin |
| Pin 2 | AN0/CN0/RB0 — Analog input 0 / change notification / digital I/O port B bit 0 |
| Pin 3 | AN1/CN1/RB1 — Analog input 1 / change notification / digital I/O port B bit 1 |
| Pin 4 | AN2/CN2/RB2 — Analog input 2 / change notification / digital I/O port B bit 2 |
| Pin 5 | AN3/CN3/RB3 — Analog input 3 / change notification / digital I/O port B bit 3 |
| Pin 6 | VSS — Ground reference |
| Pin 7 | VDD — Power supply (4.5 V to 5.5 V) |
| Pin 8 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Pin 9 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output / digital I/O |
| Pin 10 | SOSCI/CN1/RB4 — Secondary oscillator input / change notification / digital I/O |
| Pin 11 | SOSCO/T1CK/CN0/RB5 — Secondary oscillator output / Timer1 clock / digital I/O |
| Pin 12 | RP0/RE0 — Remappable peripheral pin 0 / digital I/O port E bit 0 |
| Pin 13 | RP1/RE1 — Remappable peripheral pin 1 / digital I/O port E bit 1 |
| Pin 14 | RP2/RE2 — Remappable peripheral pin 2 / digital I/O port E bit 2 |
| Pin 15 | VDD — Power supply (4.5 V to 5.5 V) |
| Pin 16 | VSS — Ground reference |
| Pin 17 | RP3/RE3 — Remappable peripheral pin 3 / digital I/O port E bit 3 |
| Pin 18 | RP4/RE4 — Remappable peripheral pin 4 / digital I/O port E bit 4 |
| Pin 19 | RP5/RE5 — Remappable peripheral pin 5 / digital I/O port E bit 5 |
| Pin 20 | VSS — Ground reference |
| Pin 21 | RP6/RE6 — Remappable peripheral pin 6 / digital I/O port E bit 6 |
| Pin 22 | RP7/RE7 — Remappable peripheral pin 7 / digital I/O port E bit 7 |
| Pin 23 | RC1 — Digital I/O port C bit 1 |
| Pin 24 | RC3 — Digital I/O port C bit 3 |
| Pin 25 | RC4 — Digital I/O port C bit 4 |
| Pin 26 | VCAP/VDDCORE — External capacitor connection for internal core regulator |
| Pin 27 | AVSS — Analog ground reference for ADC |
| Pin 28 | AVDD — Analog power supply for ADC |
Typical Applications
DSPIC33EV256GM002-I/SS is suitable for 6 applications: BLDC/PMSM Motor Control, Appliance Motor Drivers, Automotive Body and Touch Control Units, Digital Power Supplies and Battery Chargers, Industrial Sensors and Automation Nodes, Solenoid and Valve Control.
BLDC/PMSM Motor Control
The DSPIC33EV256GM002-I/SS fits motor-control applications because its 70 MIPS 16-bit DSP core executes field-oriented control (FOC) loops fast enough for kHz-bandwidth current control, while the Motor Control PWM and dual 12-bit ADCs synchronize sampling with PWM events to minimize torque ripple. In a sensor-less BLDC drive, the ADC samples phase currents and the DSP engine's single-cycle 17-bit x 17-bit multiplier handles Park/Clarke transforms without CPU starvation. Running from 5V gives roughly double the gate-drive noise margin versus 3.3V MCUs, reducing spurious gate switching in electrically noisy drive cabinets. Firmware typically implements PI current loops at 10-20 kHz, with the 256 KB Flash leaving headroom for field-weakening and diagnostic routines.
Recommended
Appliance Motor Drivers
Appliances such as fans, pumps, compressors, and blenders present high-voltage transients, vibration, and wide ambient ranges - exactly where the dsPIC33EV family's 5V robustness matters. The DSPIC33EV256GM002-I/SS tolerates a 4.5V to 5.5V supply, keeps operating across -40C to +85C, and its Flash program memory with ECC resists single-bit upsets induced by relay and motor switching noise. The Peripheral Pin Select feature lets designers move PWM and UART pins to suit single-layer cost-optimized appliance PCBs. Typical firmware runs a 120-degree trapezoidal commutation loop with overcurrent trip via the ADC or comparator, while the 7 timers handle housekeeping like tach feedback and door-interlock timing without extra glue logic.
Recommended
Automotive Body and Touch Control Units
Microchip positions the dsPIC33EV GM family for automotive sensors, touch, and control units that must survive noise and vibration in harsh environments. The DSPIC33EV256GM002-I/SS brings 5V I/O that connects directly to vehicle-level 12V-derived signals through simple resistor dividers, and its 256 KB Flash accommodates capacitive-touch libraries plus CAN-less diagnostics firmware. Four DMA channels offload periodic ADC sampling of touch electrodes or resistive sensor arrays, keeping the 70 MIPS core free for the control state machine. The -I grade suits cabin modules; for under-hood or near-engine positions, the pin-identical -E variant extends the rating to +125C. Functional safety (FuSa) support eases ISO-oriented development documentation.
Recommended
Digital Power Supplies and Battery Chargers
Digital power conversion demands deterministic control loops and precise analog sampling, which the DSPIC33EV256GM002-I/SS delivers through its dual 12-bit ADCs (up to 1000 ksps class), PWM peripherals with dead-time control, and the DSP engine for nonlinear compensation laws. In an LLC or buck charger, the ADC samples output voltage and current synchronized to PWM boundaries, and the 40-bit accumulator executes high-resolution PI and feedforward computations each switching cycle. The 5V core interfaces directly with common 5V-referenced feedback networks, shrinking the component count of the isolation-side signal chain. With 256 KB of Flash, developers can store multi-chemistry charging profiles, fault logs, and field-updatable firmware simultaneously.
Recommended
Industrial Sensors and Automation Nodes
Factory nodes benefit from the DSPIC33EV256GM002-I/SS's combination of a 12-bit ADC for transducer digitization, UART/SPI/I2C for field-bus connectivity, and a DSP core capable of on-node digital filtering - for example, FIR filtering of a vibration sensor before threshold alarming. The 5V I/O directly drives common industrial signaling levels such as 4-20 mA transmitter circuits through an external loop driver, avoiding extra level-shift stages. Remappable RPn pins via Peripheral Pin Select let one PCB serve multiple sensor SKUs by changing firmware pin assignments. The -40C to +85C industrial rating and ECC-protected Flash maintain reliable operation in control cabinets near drives and contactors where thermal and electrical stress are constant.
Recommended
Solenoid and Valve Control
Driving solenoids and hydraulic valves requires peak-and-hold current profiles that the DSPIC33EV256GM002-I/SS generates precisely with its PWM peripherals and ADC-based current feedback. The controller implements peak-and-hold by comparing sampled coil current against thresholds each cycle, chopping PWM to hold current and cut coil heating by up to 50% versus resistive drive. Its 5V logic interfaces directly with gate drivers and the high-voltage rails typical of 12V and 24V solenoid systems. ECC-protected Flash and the wide 4.5V to 5.5V supply tolerance preserve deterministic behavior during load-dump-like transients, while the 7 timers sequence multi-valve timing in fluidics and HVAC applications without external sequencer logic.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV256GM002-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM002-E/SS | DSPIC33EV256GM002-H/SS | DSPIC33EV128GM002-I/SS | DSPIC33EV64GM002-I/SS | DSPIC33EV256GM102-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 40 MHz (H-grade listing) | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Program Memory | 256 KB (85.5K x 24) | 256 KB | 256 KB | 128 KB | 64 KB | 256 KB |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| DMA Channels | 4 | 4 | 4 | 4 | 4 | 4 |
Key Differentiators
- Extended temperature option in identical footprint (vs DSPIC33EV256GM002-E/SS)
- Full 256 KB Flash at the lowest cost-per-Flash in the 28-SSOP EV line (vs DSPIC33EV128GM002-I/SS)
- Higher qualified performance grade than the H variant (vs DSPIC33EV256GM002-H/SS)
Design Notes
The internal core regulator requires a capacitor on the VCAP/VDDCORE pin (pin 26); use a low-ESR ceramic of the value specified in the family datasheet (DS70005144H) placed within a few millimeters of the pin. Connect all three VDD pins (7, 15) and three VSS pins (6, 16, 20) - omitting any pair causes erratic resets under load. Decouple each VDD with 0.1 uF in parallel with a 4.7-10 uF bulk capacitor. Estimated: with a 5.0 V supply and typical 40 mA Icc, core plus I/O dissipation stays below 0.3 W - no heatsinking is needed, but verify against your actual clock and I/O loading.
Keep the AVDD/AVSS pair (pins 28/27) on a separate, quiet analog supply island with its own decoupling (0.1 uF plus ferrite bead from the digital rail) to preserve 12-bit ADC accuracy. Route the PGECx/PGEDx programming pair to a 5-pin header - the device has multiple pairs, but ICSPCLK and ICSPDAT must come from the same pair (e.g., PGEC2/PGED2). Reserve MCLR (pin 1) with a 10 k pull-up and series 100-470 ohm resistor for ICSP and reliable brown-out recovery.
Oscillator configuration errors are the most common bring-up failure: an incorrect PLL setting in the config words leaves the core at the wrong speed or no clock at all, and since there is no crystal output check until code runs, verify with MPLAB Sim first. Also, remappable RPn pins can be double-assigned via Peripheral Pin Select, silently disabling a UART or PWM - audit PPS registers at init. Finally, the -I grade tops out at +85C; do not use this variant near power semiconductors that push local ambient above that, use the -E variant instead.
Compliance Information
RoHS and lead-free status per standard Microchip commercial-grade qualification; AEC-Q100 status for this specific -I ordering code is not stated in the provided data - confirm with Microchip for automotive programs.
