DSPIC33EV32GM004T-I/ML - 16-bit 5V 70 MIPS DSC 32KB Flash | Microchip
MPN: DSPIC33EV32GM004T-I/ML ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
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| 500 | $0 | $0.00 |
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DSPIC33EV32GM004T-I/ML Overview
A digital signal controller combines the computational power of a digital signal processor (DSP) with the peripheral integration and control logic of a microcontroller (MCU). DSCs sit in the power-management and control hierarchy between general-purpose MCUs and dedicated DSPs, offering deterministic fixed-point math alongside motor-control PWM and analog peripherals, which makes them a staple in industrial, appliance, and automotive control systems.
Key features include the 5V-tolerant dsPIC33EV core rated at 70 MIPS, six motor-control PWM (MCPWM) channels, three integrated operational amplifiers for current sensing, a Charge Time Measurement Unit (CTMU) for capacitive touch and time-based measurement, SENT bus peripheral support for automotive sensor interfaces, four DMA channels, and seven timers.
Technically, the dsPIC33EV core executes an enhanced 16-bit instruction set with DSP engine features including a 17x17 multiplier, 40-bit accumulator, and barrel shifter, operating across a wide supply range (the family supports 1.8V/2.5V/3.3V/5V flash programming classifications; the EV class targets 4.5V to 5.5V operation). The on-chip op-amps reduce external component count in current-shunt sensing paths, and ECC-class Flash options support functional-safety-oriented designs.
Typical applications include brushless DC and PMSM motor control in appliances, switched-mode power supplies and digital power, automotive sensor and touch-control units, and industrial automation nodes operating in noisy, high-vibration environments where 5V noise immunity is decisive.
Design consideration: budget the exposed-pad thermal connection carefully - solder the QFN exposed pad to a ground pour to dissipate heat and lower ground impedance for the motor-control PWM switching currents.
This page synthesizes distributor availability data, drop-in alternatives within the dsPIC33EV family, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EV32GM004T-I/ML — 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 DSPIC33EV32GM004T-I/ML (same form factor and footprint) — differing in Operating Temperature, Package, RoHS Status, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV32GM004T-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV32GM004T-H/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV256GM006-I/MR
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.1 / Unit
View Datasheet →DSPIC33EV256GM006-E/MR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV32GM004-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV32GM004T-I/ML Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EV 16-bit DSC core |
| Performance | 70 MIPS |
| Maximum Clock Frequency | 60 MHz input clock (70 MIPS core) |
| Flash Program Memory | 32 KB |
| RAM | 4 KB |
| Supply Voltage | 4.5 V to 5.5 V (5V-robust EV class) |
| Flash Programming Voltage Classes | 1.8 V / 2.5 V / 3.3 V / 5 V |
| Motor Control PWM Channels | 6 (MCPWM) |
| Integrated Op-Amps | 3 |
| CTMU | Yes (Charge Time Measurement Unit) |
| SENT Peripheral | Yes |
| DMA Channels | 4 |
| Timers | 7 |
| Package | 44-pin QFN (8x8 mm) with exposed pad |
| Operating Temperature | -40C to +85C (I grade) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T/R) |
| Qualification | AEC-Q100 and TS 16949 qualified (dsPIC33EV family) |
| RoHS Status | Compliant |
DSPIC33EV32GM004T-I/ML 44-pin qfn (8x8 mm) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EV32GM004T-I/ML (44-pin qfn (8x8 mm) with exposed pad 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 DSPIC33EV32GM004T-I/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV32GM004T-I/ML is suitable for 6 applications: BLDC/PMSM Motor Control, Automotive Sensor and Touch Control Units, Digital Power Supplies and SMPS Control, Home Appliance Control Boards, Industrial Automation and Control Nodes, Capacitive Touch and Measurement Systems.
BLDC/PMSM Motor Control
The DSPIC33EV32GM004T-I/ML is purpose-built for safety motor control: its six MCPWM channels generate complementary, dead-time-controlled signals for a three-phase inverter, while the 70 MIPS DSP core (17x17 multiplier, 40-bit accumulator) executes field-oriented control (FOC) at kHz-rate loops with deterministic latency. The three integrated op-amps amplify shunt-resistor current signals before the on-chip ADC, eliminating three external amplifiers and their offset drift. Operating at 4.5V-5.5V gives gate-driver-level noise immunity absent in 3.3V MCUs, valuable in appliance compressors, fans, and pumps running in electrically noisy environments.
Recommended
Automotive Sensor and Touch Control Units
The dsPIC33EV family is AEC-Q100 and TS 16949 qualified and integrates a SENT peripheral (SAE J2716 single-wire nibble-encoded sensor interface), making the GM004 well suited to automotive sensor-hub and touch-control units exposed to noise and vibration. The CTMU provides capacitive touch scanning for switch panels, while 5V-tolerant I/Os survive automotive load-dump-adjacent transients better than 3.3V parts. Select the -E/ML grade (-40C to +125C) for under-dash or under-hood locations. The 70 MIPS core leaves headroom for signal processing on top of communication and touch scanning tasks.
Recommended
Digital Power Supplies and SMPS Control
In digitally controlled AC-DC and DC-DC converters, the GM004's high-resolution MCPWM with fast ADC triggering implements voltage-mode or current-mode control loops at switching frequencies well above 100 kHz. The 70 MIPS core and barrel shifter handle loop compensation arithmetic without floating-point hardware, and the DSP architecture gives deterministic interrupt latency needed for cycle-by-cycle current limiting. Its 5V operation matches the optocoupler/TL431 secondary-side domain common in isolated supplies, and the 4 DMA channels offload ADC sample streaming, keeping the control ISR short and jitter-free.
Recommended
Home Appliance Control Boards
Appliance control boards combine motor drive, capacitive touch UI, and sensor acquisition - exactly the peripheral mix of the GM004: 6 MCPWM for the compressor or fan motor, CTMU for touch keys on glass panels, and three op-amps for current and temperature signal conditioning. The 5V-robust design tolerates the conducted noise of relay switching and mains transients typical in washing machines, refrigerators, and dishwashers. Microchip markets the dsPIC33EV family specifically for harsh appliance environments, and the 44-QFN 8x8 mm footprint fits dense single-PCB appliance designs.
Recommended
Industrial Automation and Control Nodes
In factory automation nodes, the GM004 combines deterministic control with rugged I/O: remappable RPn peripheral pins allow UART, SPI, I2C, and PWM routing to any of the 44-QFN pins, simplifying board reuse across product variants. The 70 MIPS core executes PID and filter computations for motion axes, actuators, and pump skids, while 5V I/O directly interfaces legacy industrial sensors and PLC logic levels without level translators. The four DMA channels keep multi-channel ADC sampling running in the background of the control loop, and the I-grade -40C to +85C range covers unconditioned cabinets.
Recommended
Capacitive Touch and Measurement Systems
Using the CTMU's charge-time measurement, the GM004 implements capacitive touch buttons and sliders through the same QFN I/Os used for control, and Microchip's touch libraries (e.g., mTouch framework) provide drift compensation for wet and gloved operation. Beyond touch, the CTMU measures precise time intervals and small capacitance changes useful for level, proximity, and humidity sensing. The on-chip 3 op-amps buffer sensor signals into the ADC, and the 70 MIPS core applies digital filtering. This consolidation yields a single-chip human-interface-plus-sensing design for cooktops and control panels.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV32GM004T-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV32GM004T-E/ML | DSPIC33EV32GM004T-H/ML | DSPIC33EV256GM006-I/MR |
|---|---|---|---|---|
| Package | 44-QFN (8x8 mm, EP) | 44-QFN (8x8 mm, EP) - same | 44-QFN (8x8 mm, EP) - same | 44-QFN - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 32 KB | 256 KB |
| Core Performance | 70 MIPS 16-bit dsPIC | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | High-temperature grade | -40C to +85C (I grade) |
| MCPWM / Op-Amps / CTMU / SENT | 6 / 3 / Yes / Yes | 6 / 3 / Yes / Yes | 6 / 3 / Yes / Yes | 6 / 3 / Yes / Yes |
Key Differentiators
- 5V-robust operation for harsh environments (vs Typical 3.3V 16-bit MCUs)
- Extended-temperature drop-in variants on the same die (vs DSPIC33EV32GM004T-E/ML and DSPIC33EV32GM004T-H/ML)
- Integrated analog front-end (3 op-amps + CTMU + SENT) (vs DSPIC33FJ256GP506A-I/PT (GP family))
- Pin-compatible Flash growth path (vs DSPIC33EV256GM006-I/MR)
Design Notes
For the 44-QFN exposed pad, design the PCB land pattern with the exposed-pad pad plus a 3x3 via array (0.3 mm vias) connecting to the ground plane. The exposed pad is the principal thermal path and the low-inductance ground return for MCPWM switching currents; an unsoldered exposed pad causes erratic ADC readings and increased ground bounce. Follow Microchip's QFN land-pattern application note for stencil aperture design (typically 50-70% coverage with segmented apertures to prevent voiding).
The dsPIC33EV runs from a 4.5V to 5.5V supply. Place a 100nF X7R ceramic capacitor at each VDD pin within 2 mm, plus a 4.7uF-10uF bulk capacitor near the package. Keep VDD ripple below datasheet limits when the motor PWM bridges switch - in appliance boards the motor current loop and the DSC supply should share a star-ground point only. Use an RC or ferrite filter on AVDD for analog blocks (ADC, op-amps, CTMU) to preserve effective ADC resolution.
Use the remappable RPn peripheral pin scheme to route PWM outputs away from the crystal traces (OSC1/OSC2). Keep the external crystal tracks short and guarded by ground. Dead-time insertion should be done in the MCPWM hardware, not software, to guarantee deterministic dead time across compiler versions and interrupt jitter. For SENT receive lines, route away from PWM switching nodes to avoid nibble-level corruption at high motor currents.
Three frequent mistakes: (1) treating the T/R (tape-and-reel) suffix part as moisture-insensitive - QFN MSL ratings require proper dry-bake handling after the bag is opened; (2) forgetting the MCLR pull-up and programming connector (ICSP) on production boards, which blocks field reprogramming; (3) sizing firmware beyond 32KB - if your control stack plus touch library exceeds roughly 11K instructions, move to the pin-compatible DSPIC33EV256GM006-I/MR early in the project rather than re-spinning later.
Compliance Information
dsPIC33EV family documented as AEC-Q100 and TS 16949 qualified per Microchip USA product data. RoHS/lead-free per standard Microchip current-production status; REACH and halogen-free status not stated in the verified web data.
