DSPIC33EV32GM102T-I/MM - 70MIPS 32KB 5V DSC QFN-28 | Microchip
MPN: DSPIC33EV32GM102T-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.47 | $3.47 |
| 10 | $3.12 | $31.20 |
| 100 | $2.78 | $278.00 |
| 500 | $2.52 | $1,260.00 |
| 1,000 | $2.3 | $2,300.00 |
DSPIC33EV32GM102T-I/MM Overview
A digital signal controller combines the computational power of a digital signal processor with the peripheral integration and deterministic control flow of a microcontroller. Within the power-management hierarchy, the dsPIC33EV family sits in the broader class of embedded microcontrollers, optimized for real-time closed-loop control tasks such as motor commutation, power conversion, and sensor fusion in electrically harsh environments.
Key features include a 16-bit pipelined core with DSP engine, dual 40-bit accumulators, and barrel shifter; up to 6 motor-control PWM channels with dead-time insertion; a CAN 2.0B controller for automotive and industrial networks; SENT (SAE J2716) peripheral support; a charge time measurement unit (CTMU); and on-chip analog integration including 3 operational amplifiers, reducing external component count in mixed-signal designs.
Technical depth: the dsPIC33EV core runs from a 4.5V to 5.5V supply, distinguishing it from most 3.3V DSC competitors and allowing direct interfacing with 5V sensors and transducers. Flash ECC (single-bit error correction) plus functional-safety (FuSa) documentation support IEC 61508 and ISO 26262 development flows. Four DMA channels offload the CPU for high-throughput ADC and communication workloads, and Peripheral Pin Select (PPS) allows flexible remapping of digital peripherals to RPn pins.
Typical applications include brushless DC (BLDC) and PMSM motor control, automotive body and sensor modules, appliances, and industrial power supplies where CAN connectivity and 5V robustness against noise and vibration are required.
Design consideration: budget the VCAP pin capacitor per the manufacturer datasheet for core regulator stability, and use the SS/MCLR configuration fuses deliberately - wrong oscillator selection is a common first-bring-up pitfall.
This page synthesizes distributor pricing, same-family drop-in alternatives, design notes, and application guidance not found on the manufacturer product page.
Drop-in alternatives for DSPIC33EV32GM102T-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 DSPIC33EV32GM102T-I/MM (same form factor and footprint) — differing in Core, Package, RAM, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV128GM102T-I/MM
✅ Drop-In✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33EV64GM102T-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV32GM002T-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV64GM002T-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV128GM002T-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV32GM102T-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV32GM102T-I/MM Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EV, 16-bit DSC with DSP engine |
| Maximum MIPS / DMIPS | 70 MIPs |
| Maximum Clock Frequency | 60 MHz |
| Supply Voltage | 4.5 V to 5.5 V (5V-tolerant core) |
| Program Memory (Flash) | 32 KB (11K x 24) with ECC |
| RAM | 4 KB |
| DMA Channels | 4 |
| CAN Controller | CAN 2.0B |
| Motor Control PWM Channels | 6 MC PWM |
| Operational Amplifiers | 3 on-chip op amps |
| SENT Peripheral | Yes (SAE J2716) |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Pin Select | Yes (PPS, remappable RPn pins) |
| Functional Safety Support | FuSa documentation available |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 28-QFN-S (6x6 mm) |
| Mounting Type | Surface Mount |
DSPIC33EV32GM102T-I/MM 28-qfn-s (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33EV32GM102T-I/MM (28-qfn-s (6x6 mm) 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 DSPIC33EV32GM102T-I/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV32GM102T-I/MM is suitable for 6 applications: BLDC and PMSM Motor Control, Automotive Body and Sensor Modules, Appliance Control Boards, Industrial Power Supplies and Converters, CAN-Networked Industrial Nodes, Capacitive Touch and SENT Sensor Interfaces.
BLDC and PMSM Motor Control
The DSPIC33EV32GM102T-I/MM fits three-phase BLDC and PMSM drives because its 6 motor-control PWM channels provide complementary outputs with dead-time insertion directly driving a gate-driver front end, while the 70 MIPs core executes field-oriented-control current loops fast enough for typical 10-20 kHz PWM frequencies. The 3 on-chip op amps condition low-side shunt current signals internally, eliminating external amplifier ICs and reducing board area and BOM cost. Connected between the current-sense shunts and the ADC inputs, the op amps and CTMU support sensorless commutation schemes based on back-EMF observation. Performance consideration: at 5V logic the PWM outputs drive 5V-compatible gate drivers without level shifting, but ensure adequate dead time in software for the selected MOSFET bridge to avoid shoot-through at maximum load.
Recommended
Automotive Body and Sensor Modules
In automotive nodes such as sensor interfaces, touch controls, and body electronics, the DSPIC33EV32GM102T-I/MM offers the combination Microchip designed this family for: 5V I/O robustness against load-dump-adjacent transients, CAN 2.0B for in-vehicle networking, and SENT (SAE J2716) for direct connection to SENT-output automotive sensors. The CTMU enables capacitive-touch buttons for human-machine interfaces without dedicated touch ICs. Functional-safety documentation availability supports development flows targeting ISO 26262-style processes. The 28-QFN-S (6x6 mm) package suits compact modules placed near the point of sensing. Design consideration: choose the -E grade variant (-40C to +125C) when the module is mounted in underhood or engine-bay positions where ambient temperature exceeds the -I grade limit of +85C.
Recommended
Appliance Control Boards
Appliance mainboards - washing machines, refrigerators, fans, and power tools - benefit from the DSPIC33EV32GM102T-I/MM's 5V core, which tolerates the noisy, vibration-prone electrical environment of household and power-tool products better than 3.3V controllers. The 6 PWM channels handle universal-motor triac-style or inverter-driven control, while the on-chip op amps interface current and voltage sense signals for overload protection and closed-loop speed regulation. With 32KB of ECC Flash, the control firmware plus compensation tables fit comfortably, and the ECC protects against bit flips induced by motor commutation noise. The CAN peripheral additionally supports connected-appliance network topologies. Recommended practice: route PWM and current-sense traces away from the oscillator, and use the internal filtered PLL per the manufacturer datasheet for clock-jitter-sensitive control loops.
Recommended
Industrial Power Supplies and Converters
Digital power converters - LLC resonant supplies, PFC stages, and DC-DC modules - use the DSPIC33EV32GM102T-I/MM for its deterministic 70 MIPs core, high-resolution PWM generation from the MC PWM module, and fast interrupt latency for cycle-by-cycle current limiting. The DSP engine's dual 40-bit accumulators handle control-law arithmetic (PID, resonant controllers) in fixed point without external math coprocessors. The 4 DMA channels stream ADC results into RAM while the CPU computes the control loop, sustaining sample rates above 100 kHz. Because the core is 5V, gate-drive logic interfaces directly to many driver ICs. Thermal consideration: the 28-QFN-S exposed pad must be soldered to a ground plane for both electrical grounding and heat dissipation, since switch-mode firmware loads can push junction temperature in dense enclosures.
Recommended
CAN-Networked Industrial Nodes
For industrial automation nodes - sensor hubs, actuators, and sub-controllers on a CAN bus - the DSPIC33EV32GM102T-I/MM integrates the CAN 2.0B protocol controller so only an external transceiver is needed. Peripheral Pin Select lets the engineer remap UART, SPI, and I2C-class peripherals onto available RPn pins, so the same PCB supports multiple interface variants with a single MCU SKU, simplifying inventory. The 5V I/O directly drives optocoupler LED inputs common in isolated industrial CAN front ends, again avoiding level-shift components. The 32KB ECC Flash stores protocol stacks plus application code for modest nodes; migrate to the pin-compatible DSPIC33EV128GM102T-I/MM when adding complex fieldbus stacks. Network reliability tip: enable the CAN error-passive and bus-off recovery behavior in firmware per the Microchip family reference manual to survive bus faults.
Recommended
Capacitive Touch and SENT Sensor Interfaces
The DSPIC33EV32GM102T-I/MM serves as a single-chip touch and sensor interface using its CTMU for charge-based capacitive touch measurement and its SENT peripheral for decoding SAE J2716 sensor streams from automotive pressure, position, and level sensors. The CTMU measures capacitance changes on PCB electrodes with microsecond-precision charge timing, enabling buttons and sliders without dedicated touch controllers, while the SENT receiver validates nibbles and CRC in hardware, offloading the CPU. The on-chip op amps can buffer or filter analog sensor inputs before the internal ADC. Performance consideration: keep touch electrodes and SENT input routing separated on the PCB to prevent switching noise coupling into the capacitive measurement, and sample touch channels during PWM idle windows if the same board drives motors.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV32GM102T-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV128GM102T-I/MM | DSPIC33EV64GM102T-I/MM | DSPIC33EV32GM002T-I/MM | DSPIC33EV32GM102T-E/MM |
|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm) | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 70 MIPs, 16-bit DSC | 70 MIPs, 16-bit DSC | 70 MIPs, 16-bit DSC | 70 MIPs, 16-bit DSC | 70 MIPs, 16-bit DSC |
| Flash Memory | 32 KB (ECC) | 128 KB (ECC) | 64 KB (ECC) | 32 KB (ECC) | 32 KB (ECC) |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| On-chip Op Amps / CTMU / SENT | 3 op amps, CTMU, SENT | 3 op amps, CTMU, SENT | 3 op amps, CTMU, SENT | Not present | 3 op amps, CTMU, SENT |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) |
| CAN / MC PWM | CAN 2.0B, 6 MC PWM | CAN 2.0B, 6 MC PWM | CAN 2.0B, 6 MC PWM | CAN 2.0B, 6 MC PWM | CAN 2.0B, 6 MC PWM |
Key Differentiators
- True 5V core eliminates level shifting (vs DSPIC33EP64MC502-E/MM)
- Highest analog integration in the 28-pin family tier (vs DSPIC33EV32GM002T-I/MM)
- ECC Flash and FuSa support for safety-oriented designs (vs DSPIC33EV64GM102T-I/MM)
Design Notes
Supply the DSPIC33EV32GM102T-I/MM from a regulated 5V rail within the 4.5V to 5.5V range. The internal core regulator requires the specified VCAP capacitor on the VCAP pin - use a low-ESR ceramic of the value stated in the manufacturer datasheet (DS70005144H) and place it within a few millimeters of the pin. Decouple each VDD pin with 0.1uF in parallel with a bulk 10uF capacitor. In motor-drive boards sharing a supply with inductive loads, add a local LDO or ferrite filter to isolate the MCU rail from commutation ripple.
The 28-QFN-S (6x6 mm) package has an exposed pad that must be soldered to a ground pour for reliable grounding and heat spreading - ensure the stencil provides adequate paste coverage without voids. Route PWM outputs short and away from analog sense traces feeding the on-chip op amps and ADC. Reserve Programming/Debug (PGEC/PGED) pins for ICSP access with a 5-pin header, since in-field firmware updates via MPLAB ICD require direct access to these pins.
The most frequent first-bring-up failures are configuration-fuse related: verify the oscillator selection (primary with PLL for 70 MIPs operation), watchdog, and MCLR settings before flashing production firmware. Second, Peripheral Pin Select (PPS) must be explicitly locked (or unlocked for runtime remapping) - peripherals silently do not appear on pins until mapped. Third, Flash ECC means single-bit errors are corrected but double-bit errors trap; install a trap handler rather than relying on default reset behavior in safety-oriented designs.
Compliance Information
Compliance details were not present in the retrieved web data; consult the Microchip product page or environmental datasheet for current RoHS/REACH status.
