DSPIC33EV32GM104-I/PT - 16-Bit 5V 70MIPS DSC | Microchip
MPN: DSPIC33EV32GM104-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.92 | $49.20 |
| 100 | $4.38 | $438.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.52 | $3,520.00 |
DSPIC33EV32GM104-I/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and deterministic interrupt structure of a microcontroller. Within the power-management hierarchy of embedded systems, a DSC such as this sits at the control layer: it executes closed-loop algorithms (PID, motor control, digital power) while directly driving sensors and actuators. The dsPIC33EV family extends Microchip's dsPIC33 architecture with an enhanced 5V-capable core, which eliminates level-shifting circuitry when interfacing with legacy 5V transducers and power stages.
Key features include 70 MIPS instruction throughput at 5V, on-chip Flash of 32KB organized as 11K x 24-bit instruction words, 4KB of SRAM, 4 DMA channels for low-latency data movement, and 9 timers supporting capture, compare, and PWM functions. The device also provides 3 external interrupt sources and multiple PGECx/PGEDx pin pairs for In-Circuit Serial Programming (ICSP) and debugging. DigiKey classifies the family as Functional Safety (FuSa) capable, supporting safety-oriented designs.
Architecturally, the dsPIC33EV uses a modified Harvard, 16-bit CISC-style instruction pipeline with dual operand fetch, DSP multiply-accumulate (MAC) instructions, and a multiple internal bus structure as described by Microchip distributors, enabling single-cycle DSP operations that offload signal-processing loops from software overhead.
Typical applications include appliance motor control (BLDC/PMSM drives), automotive body and powertrain subsystems, industrial digital power supplies, and sensor-interface systems where direct 5V analog connectivity reduces bill-of-material complexity.
Design-wise, all VDD/VSS pairs must be decoupled and tied per the manufacturer datasheet, and any PGECx/PGEDx pair selected for ICSP must be used as a matched pair (for example PGEC2 with PGED2), per Microchip programming documentation.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EV32GM104-I/PT — 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 DSPIC33EV32GM104-I/PT (same form factor and footprint) — differing in Operating Voltage, Package, Core Architecture, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV32GM104-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV64GM004-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.79 / Unit
View Datasheet →DSPIC33EV256GM004-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.55 / Unit
View Datasheet →DSPIC33EV32GM004-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.3 / Unit
View Datasheet →DSPIC33EV128GM104-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.39 / Unit
View Datasheet →DSPIC33EV32GM104-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC (modified Harvard) |
| Max CPU Speed | 70 MIPS |
| Flash Program Memory | 32 KB (11K x 24) |
| RAM | 4 KB |
| Operating Voltage | 5 V (supports 1.8 V / 2.5 V / 3.3 V / 5 V operation range per parametric data) |
| DMA Channels | 4 |
| Timers | 9 |
| External Interrupts | 3 |
| Package | 44-TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C |
| Mounting Type | Surface Mount |
| Programming Interface | ICSP (multiple PGECx/PGEDx pairs) |
| Functional Safety | FuSa capable (per DigiKey classification) |
| Packaging | Tray |
| RoHS Status | Compliant |
| Product Family | dsPIC33EV |
DSPIC33EV32GM104-I/PT 44-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EV32GM104-I/PT (44-tqfp (10x10 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 DSPIC33EV32GM104-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV32GM104-I/PT is suitable for 6 applications: Appliance Motor Control (BLDC / PMSM), Automotive Body and Powertrain Subsystems, Industrial Digital Power Supplies, Sensor-Interface and Data-Acquisition Nodes, HVAC and Compressor Control Boards, Functional-Safety-Oriented Industrial Control.
Appliance Motor Control (BLDC / PMSM)
The DSPIC33EV32GM104-I/PT fits household appliance motor control because its 70 MIPS dsPIC core executes field-oriented control (FOC) and sensorless trapezoidal algorithms with single-cycle MAC instructions, while native 5V operation directly interfaces Hall sensors and gate-driver logic without level shifters. The controller's 9 timers generate complementary PWM with dead-time for three-phase inverters, and 4 DMA channels move ADC results without CPU intervention, keeping loop latency predictable. Placed between a rectified mains supply and a three-phase gate-driver stage, it computes current-loop iterations every PWM cycle; the trade-off versus dedicated motor ASSPs is full algorithm flexibility for compressor, fan, and washer-drum drives, at the cost of firmware development effort.
Recommended
Automotive Body and Powertrain Subsystems
The dsPIC33EV family is positioned by Microchip for automotive applications, and the DSPIC33EV32GM104-I/PT's -40C to +85C I-grade and 5V tolerance match the electrical environment of 12V automotive subsystems where clamped transients remain near 5V logic levels. It suits throttle-position processing, pump control, lighting modules, and sensor conditioning: the 70 MIPS core handles crank-tooth decoding and PWM generation, while the FuSa-capable classification supports designs targeting safety processes. In-circuit, it typically runs from a 5V regulator fed by the battery rail with load-dump clamping; the 32KB Flash accommodates a bootloader plus application. The trade-off: for ASIL-rated paths, verify the specific qualification level of this ordering code with Microchip.
Recommended
Industrial Digital Power Supplies
In digital SMPS and PFC stages, the DSPIC33EV32GM104-I/PT closes voltage and current loops in firmware: high-speed ADC samples feed the DSP MAC pipeline, PWM outputs drive the power stage, and DMA streams data with minimal jitter. The 5V core simplifies interface to optocoupler and gate-driver circuits common in industrial supplies. Its 9 timers and 3 external interrupts support phase shedding, burst mode, and fault shutdown with hardware-timed responses. Deployed between the input-sense divider and MOSFET drivers, it replaces analog control ICs while adding programmability (soft-start profiles, telemetry). Designers should budget instruction cycles carefully: 32KB Flash is ample for PFC plus LLC control, but limit telemetry features to preserve margin.
Recommended
Sensor-Interface and Data-Acquisition Nodes
The DSPIC33EV32GM104-I/PT serves 5V industrial sensor nodes - pressure transducers, strain-gauge bridges, and thermocouple front ends - because its 5V-tolerant I/O reads legacy sensors directly, and the DSP engine performs digital filtering (IIR/FIR) and linearization in fixed-point math at 70 MIPS. Four DMA channels stream ADC samples to the 4KB RAM continuously, while the 3 external interrupts handle threshold alarms with deterministic latency. Typical topology: sensor output into an external PGA/ADC on a serial bus, with the dsPIC computing filtered values and driving a 4-20 mA or industrial bus interface. Compared with a 3.3V MCU plus level shifters, this part reduces component count and failure points in electrically noisy factory floors.
Recommended
HVAC and Compressor Control Boards
HVAC controllers benefit from the DSPIC33EV32GM104-I/PT's combination of robust 5V noise immunity and DSP-grade control throughput. It runs sensorless compressor and blower algorithms: back-EMF observers computed via MAC instructions, six PWM outputs sequenced by the timer array, and overcurrent trips handled through external interrupts in microsecond-scale time. The -40C to +85C grade covers rooftop and condenser-unit ambient extremes, and RoHS-compliant TQFP-44 assembly fits standard lead-free reflow lines. Firmware typically occupies well under 32KB Flash for a two-motor system with MODBUS or UART diagnostics. The practical trade-off versus application-specific appliance ASSPs is development effort in exchange for one control platform reused across product families.
Recommended
Functional-Safety-Oriented Industrial Control
DigiKey classifies the dsPIC33EV family, including the DSPIC33EV32GM104-I/PT, as Functional Safety (FuSa) capable, making it a candidate for safety-related industrial functions such as safe-torque-off logic, interlock monitoring, and guarded start sequences. The 70 MIPS core executes diagnostic self-tests alongside the control loop; multiple PGECx/PGEDx pairs support in-field reprogramming of the application partition via ICSP, and the deterministic interrupt structure simplifies safety-case timing analysis. In a typical architecture, the dsPIC monitors contactor state and sensor plausibility while a separate safety controller executes the final trip decision. Note: safety certification is a system-level process - confirm the applicable certification documentation package with Microchip for your target standard.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV32GM104-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV32GM104-E/PT | DSPIC33EV64GM004-I/PT | DSPIC33EV256GM004-E/PT | DSPIC33EV32GM004-I/PT |
|---|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB (11K x 24) | 32 KB (11K x 24) | 64 KB | 256 KB | 32 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +85C |
| Operating Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Peripheral Set | Full GM104 set (4 DMA, 9 timers) | Full GM104 set - identical | GM004 subset | GM004 subset | GM004 subset |
| Temperature Grade Suffix | -I (industrial) | -E (extended) | -I (industrial) | -E (extended) | -I (industrial) |
Key Differentiators
- Native 5V operation eliminates level-shifting (vs DSPIC33EV64GM004-I/PT)
- Extended-temperature upgrade without redesign (vs DSPIC33EV32GM104-E/PT)
- Flash headroom ceiling in the same footprint (vs DSPIC33EV256GM004-E/PT)
Design Notes
Connect every VDD and VSS pair on the TQFP-44 package; omitting any pair on dsPIC33EV devices causes undefined behavior and unreliable ICSP. Place a 100 nF ceramic decoupling capacitor at each VDD/VSS pair, plus one bulk capacitor (4.7-10 uF) near the supply entry. Keep the crystal/oscillator traces short and guard them from PWM output traces that switch amps-level gate charge, since motor-control layouts couple high dV/dt into timing circuits.
The dsPIC33EV32GM104 has multiple PGECx/PGEDx pairs. Per Microchip programming-support documentation, you may use any pair for ICSP, but the selected pair must be used as a matched pair - for example PGEC2 for ICSPCLK must pair with PGED2 for ICSPDAT. Mixing pairs from different indices is a common bring-up failure. Also reserve the ICSP connector footprint on production boards even when field programming is not planned; rework after conformal coating is costly.
For motor-control applications, route PWM outputs away from analog sense lines feeding the ADC, and use a single-point analog ground return for current-shunt signals. The DSP MAC pipeline at 70 MIPS tolerates ADC noise poorly: add RC anti-alias filtering sized to the PWM sampling frequency, and trigger ADC conversions from the PWM time base (via DMA) so sampling occurs at consistent points in the switching cycle, minimizing ripple-induced measurement error.
Estimated: at 70 MIPS with typical dsPIC33EV core current on the order of tens of milliamps at 5V, core power dissipation remains well under 0.5W, so the 10x10 TQFP needs no heatsink; PCB copper alone suffices. Verify against the datasheet current-consumption tables for your actual clock configuration (internal FRC vs external crystal), as PLL settings materially change dynamic current.
Compliance Information
RoHS compliant and lead-free per distributor data (onlinecomponents.com). AEC-Q100 qualification status of this specific ordering code not stated in provided data - confirm with Microchip; the dsPIC33EV family is marketed for automotive applications.