DSPIC33EV128GM002-I/SS - 16-bit 5V DSC 128KB Flash | Microchip
MPN: DSPIC33EV128GM002-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.12 | $4.12 |
| 10 | $3.74 | $37.40 |
| 100 | $3.32 | $332.00 |
| 500 | $2.96 | $1,480.00 |
| 1,000 | $2.64 | $2,640.00 |
DSPIC33EV128GM002-I/SS Overview
A digital signal controller combines the compute architecture of a digital signal processor - hardware multiply-accumulate, DSP instruction set, fast interrupts - with the peripheral integration and deterministic control of a microcontroller. Within the power-management hierarchy, the dsPIC33EV family sits above basic MCUs and below full DSPs, making it the standard choice for embedded motor and power conversion control where both math throughput and robust I/O are required.
Key differentiating features include a 5V-tolerant operating range of 4.5V to 5.5V that eliminates a separate 3.3V rail in many designs, error-correcting-code (ECC) flash for functional-safety-oriented designs, six motor-control PWM channels, three on-chip operational amplifiers for current-sense conditioning, a CTMU charge-time-measurement unit for capacitive touch, and a SENT peripheral for automotive sensor interfaces. Four DMA channels offload data movement from the CPU.
Architecturally, the dsPIC33EV core executes an enhanced 16-bit instruction set with DSP multiply-accumulate support, allowing single-cycle MAC operations for control-loop math such as field-oriented motor control and digital power compensation. The 128KB ECC flash provides code storage with single-bit error correction, while the 8KB RAM holds control state and buffers.
Typical applications include BLDC, PMSM, AC induction and stepper motor control in appliances and industrial drives, automotive sensor and touch control units exposed to noise and vibration, and digital power supplies where the 5V domain simplifies gate-drive interfacing.
Design consideration: the device derives its core supply internally via a VCAP pin; follow the recommended capacitor value and PCB placement in the manufacturer datasheet to ensure regulator stability at full 70 MIPS clock speed.
This page synthesizes distributor availability, drop-in same-family alternatives, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown as of 2026-09-26.
Drop-in alternatives for DSPIC33EV128GM002-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 DSPIC33EV128GM002-I/SS (same form factor and footprint) — differing in Operating Temperature, Package, Peripheral Pin Select, RAM, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV128GM002-H/SS
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV64GM002-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV256GM002-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.52 / Unit
View Datasheet →DSPIC33EV128GM002-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Core Performance | Up to 70 MIPS |
| CPU Clock (per distributor listing) | 60 MHz |
| Flash Memory | 128 KB with ECC |
| RAM | 8 KB |
| DMA Channels | 4 |
| Operating Voltage | 4.5 V to 5.5 V |
| Operating Temperature | -40C to +85C |
| Package | 28-SSOP (0.209 in body) |
| Mounting Type | Surface Mount |
| Motor Control PWM | 6-channel MCPWM |
| On-chip Op Amps | 3 |
| CTMU (touch/charge time measurement) | Yes |
| SENT Peripheral | Yes |
| Peripheral Pin Select | Yes (RPn/RPIn remapping) |
| RoHS Status | Compliant |
| Packaging | Tube |
DSPIC33EV128GM002-I/SS 28-ssop (0.209 in body) Pin Configuration Guide
Pin configuration for DSPIC33EV128GM002-I/SS (28-ssop (0.209 in body) 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 DSPIC33EV128GM002-I/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV128GM002-I/SS is suitable for 6 applications: BLDC / PMSM Motor Control, Automotive Sensor and Control Units, Digital Power Supplies, Appliance Control Boards, Industrial Sensing and Signal Conditioning, Capacitive Touch User Interfaces.
BLDC / PMSM Motor Control
The DSPIC33EV128GM002-I/SS fits brushless DC and permanent-magnet synchronous motor control through its 6-channel motor-control PWM with complementary outputs and programmable dead time, paired with three on-chip op amps that amplify current-shunt signals without external amplifiers. Its 16-bit DSP core executes single-cycle multiply-accumulate instructions, sustaining field-oriented control loops at 10-20 kHz switching frequencies with margin. The 4.5V-5.5V supply domain directly drives 5V gate-driver logic common in appliance inverters, removing level-shift circuitry. Placed between the current sense resistors and the MOSFET gate drivers, the DSC closes both current and speed loops; the 128KB ECC flash holds the control firmware plus fault diagnostics, and the CTMU can additionally measure motor temperature via resistive sensing.
Recommended
Automotive Sensor and Control Units
Microchip explicitly targets the dsPIC33EV family at automotive sensors and touch control units that operate in noise and vibration. The DSPIC33EV128GM002-I/SS contributes a dedicated SENT (SAE J2716) peripheral for single-wire sensor interfaces, a CTMU charge-time-measurement unit for capacitive touch buttons exposed to harsh grime, and 5V-tolerant I/O that matches legacy automotive signal levels. The -40C to +85C industrial rating covers under-dash and body-control environments, while ECC flash protects code integrity against electrical transients. In a typical seat-control or HVAC-flap module, the 28-SSOP DSC reads SENT or analog sensors through its on-chip op amps, executes position and diagnosis logic, and drives motors via the 6-channel PWM. Designers should follow the family datasheet guidance on SENT clock calibration for protocol compliance.
Recommended
Digital Power Supplies
The DSPIC33EV128GM002-I/SS suits digitally controlled AC-DC and DC-DC converters where the 5V logic domain simplifies interfacing with gate drivers and feedback dividers. The 70 MIPS DSP core runs digital compensators (PID or higher-order) at switching frequencies up to several hundred kHz, while the high-speed PWM module offers fine duty and phase resolution for half-bridge, full-bridge, and power-factor-correction topologies. On-chip op amps condition current-loop shunt signals, and the ADC plus DMA stream samples into RAM without CPU loading, preserving loop timing. The 128KB ECC flash accommodates extensive protection, soft-start, and telemetry firmware. Compared to analog controllers, this DSC adds configurability and communication; the trade-off is firmware validation effort and attention to PWM-ADC trigger latency documented in the family datasheet.
Recommended
Appliance Control Boards
Appliance environments combine line transients, vibration, and cost pressure - exactly the profile Microchip cites for the dsPIC33EV family in harsh environments such as appliances. The DSPIC33EV128GM002-I/SS controls washer and refrigerator compressor motors, fan arrays, and heater power through its 6-channel PWM, while the CTMU supports sealed capacitive touch user interfaces that survive moisture and cleaning chemicals. The 5V supply range tolerates unregulated aux supplies, and ECC flash withstands the electrical noise of relay switching and inverter operation. Its 28-SSOP footprint keeps the control board compact. Firmware stores multiple wash/cook profiles in the 128KB flash; four DMA channels move ADC and UART data for sensor fusion and user-interface feedback without interrupt jitter that would disturb motor control loops.
Recommended
Industrial Sensing and Signal Conditioning
The three integrated operational amplifiers and 12-bit-class ADC resources make the DSPIC33EV128GM002-I/SS effective in industrial sensor front ends: signal from thermocouples, pressure bridges, or current sensors is amplified on-chip, filtered in the DSP core, and transmitted via remappable UART/SPI/CAN peripherals arranged freely with Peripheral Pin Select. The 70 MIPS core supports FFT-based vibration monitoring and digital filtering without an external DSP. Operating from a single 5V rail common on industrial PLC backplanes avoids extra regulators, and the -40C to +85C range covers cabinet-mounted electronics. The CTMU adds precise charge-time measurement for capacitive or resistive element sensing, such as fluid level. Compared to a discrete amplifier-plus-MCU design, this integration reduces BOM count and board area in the 28-SSOP package.
Recommended
Capacitive Touch User Interfaces
Using its CTMU charge-time-measurement unit, the DSPIC33EV128GM002-I/SS implements multi-key capacitive touch panels, sliders, and wheels directly, with no dedicated touch controller. The CTMU charges sense pads with a constant current and measures charge time, detecting finger capacitance changes; the 70 MIPS core runs debounce, drift compensation, and water-tolerance algorithms in firmware. This suits appliance panels, industrial HMI sub-panels, and automotive touch controls - the latter a use case Microchip names for the dsPIC33EV GM family in noisy, vibrating environments. The 5V operation and ECC flash add robustness against line transients and ESD-induced upsets. Output can drive LEDs via remappable PWM or communicate status over UART/CAN through Peripheral Pin Select, all within the compact 28-SSOP footprint at low BOM cost.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV128GM002-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV128GM002-H/SS | DSPIC33EV64GM002-I/SS | DSPIC33EV256GM002-I/SS |
|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128 KB (ECC) | 128 KB (ECC) | 64 KB (ECC) | 256 KB (ECC) |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Core Performance | Up to 70 MIPS | Up to 70 MIPS | Up to 70 MIPS | Up to 70 MIPS |
| Operating 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 |
| Peripherals (PWM / Op Amps / CTMU / SENT) | 6-ch / 3 / Yes / Yes | 6-ch / 3 / Yes / Yes | 6-ch / 3 / Yes / Yes | 6-ch / 3 / Yes / Yes |
Key Differentiators
- 5V-native operation eliminates level shifting (vs DSPIC33EP64MC202-I/SP)
- Higher flash headroom at same footprint (vs DSPIC33EV64GM002-I/SS)
- Optimized code-size/cost balance in GM002 family (vs DSPIC33EV256GM002-I/SS)
Design Notes
The dsPIC33EV core is supplied by an internal regulator whose stability depends on the external capacitor on the VCAP pin. Use exactly the capacitance and dielectric recommended in the manufacturer datasheet (a low-ESR ceramic per the family datasheet DS70005144H) and place it within a few millimeters of the pin. Decouple each VDD pin with 0.1uF ceramic close to the pin, plus bulk capacitance at the board level. Estimated: at 5.0V with peak core activity near 70 MIPS, supply current can approach the tens-of-milliamps range, so a solid ground plane is advised.
Exploit Peripheral Pin Select (PPS) during layout: because RPn/RPIn pins can map UART, SPI, and PWM to convenient physical pins per datasheet Section 11.5, route the motor PWM outputs away from the analog sense lines feeding the on-chip op amps. Keep shunt-sense traces kelvin-connected to the resistor pads, and place the op-amp input filter resistors close to the device. Reserve MCLR, PGD, and PGC pads for in-circuit programming even in production boards - the ICSP interface is shared with these pins.
Confirm the code suffix matches your temperature requirement: the 'I' in DSPIC33EV128GM002-I/SS denotes -40C to +85C; 'E'-grade parts extend to +125C. Do not substitute an 'H'-suffixed part in an automotive program without checking its qualification status. Also remember the /SS SSOP package is footprint-incompatible with the /SO SOIC variant despite identical electronics - verify the land pattern before second-sourcing within the family, and re-verify flash budget if dropping to the 64KB variant.
Compliance Information
RoHS compliance confirmed by JLCPCB distributor listing. REACH, halogen-free, and conflict-minerals declarations not stated in provided distributor data; consult Microchip's official compliance portal.
