DSPIC33EV32GM004-I/PT - 16-Bit 5V 70 MIPS DSC 44-TQFP | Microchip
MPN: DSPIC33EV32GM004-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.18 | $3.18 |
| 10 | $2.95 | $29.50 |
| 100 | $2.72 | $272.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.3 | $2,300.00 |
DSPIC33EV32GM004-I/PT Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral integration and control logic of a microcontroller, sitting within the broader hierarchy of embedded processors: DSC -> 16-bit microcontroller -> microprocessor-based control system. The dsPIC33EV GM family is specifically engineered for 5V industrial environments where 3.3V MCUs require level shifting, making it a direct fit in harsh settings with noise and vibration.
Key features include the 5V operating range of 4.5V to 5.5V, eliminating external level translators in industrial 5V signal chains; a 70 MIPS modified Harvard architecture core with DSP engine for real-time control loops; 4 DMA channels that offload data movement from the CPU; and 9 timers plus 3 external interrupt sources for complex event sequencing. Functional Safety (FuSa) support documentation is available per DigiKey classification, aiding IEC 61508-oriented designs.
Technically, the device uses Microchip's dsPIC33E core with a 24-bit instruction word, hardware DSP multiply-accumulate unit, and Peripheral Pin Select (PPS) that allows remapping of digital peripherals such as UART, SPI, I2C, and motor-control PWM onto flexible RPn pins - a major advantage during PCB layout and board revisions. On-chip flash of 32KB with ECC-style self-programming and 4KB of RAM covers typical sensor fusion, PFC, BLDC/ACIM motor control, and power-conversion firmware footprints.
Typical applications include automotive sensor and touch-control units, industrial motor drives, appliance control boards, switched-mode power supplies, and digital power conversion where 5V noise immunity and DSP math throughput are essential. The 44-TQFP package exposes enough I/O for quadrature encoder interfaces, complementary PWM outputs, and analog channels.
Design consideration: the dsPIC33EV family requires an external VCAP/VDDCORE stabilization capacitor per the datasheet - do not omit it, and follow Microchip's layout guidance for decoupling in noisy 5V environments.
This page adds value beyond the manufacturer datasheet by synthesizing distributor pricing (as of 2026-09-26), drop-in same-footprint alternatives, and practical design notes in one citable reference.
Drop-in alternatives for DSPIC33EV32GM004-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 DSPIC33EV32GM004-I/PT (same form factor and footprint) — differing in Operating Temperature, Operating Voltage, Package, RAM, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV32GM004-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV32GM004-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV64GM004-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV128GM004-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.1 / Unit
View Datasheet →DSPIC33EV256GM004-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.55 / Unit
View Datasheet →DSPIC33EV32GM004-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Core Speed | 70 MIPS |
| Operating Voltage | 4.5 V to 5.5 V |
| Supply Voltage Nominal | 5 V |
| Program Memory (Flash) | 32 KB (11K x 24) |
| RAM | 4 KB |
| DMA Channels | 4 |
| Timers | 9 |
| External Interrupts | 3 |
| Package | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Peripheral Pin Select | Yes (PPS, remappable RPn pins) |
| Functional Safety Support | Yes (FuSa package per DigiKey) |
| Family | dsPIC33EV GM |
DSPIC33EV32GM004-I/PT Pin Configuration
| Pin 1 | MCLR — Master clear reset input / programming voltage |
| Pin 2 | AN0/VREF+/CMP1 — Analog input 0 / positive voltage reference / comparator 1 |
| Pin 3 | AN1/VREF-/CMP2 — Analog input 1 / negative voltage reference / comparator 2 |
| Pin 4 | PGD1/AN2/RP1 — In-circuit debug data / analog input 2 / remappable I/O |
| Pin 5 | PGC1/AN3/RP2 — In-circuit debug clock / analog input 3 / remappable I/O |
| Pin 6 | AN4/C1IN-/RP3 — Analog input 4 / comparator 1 inverting input / remappable I/O |
| Pin 7 | AN5/C1IN+/RP4 — Analog input 5 / comparator 1 non-inverting input / remappable I/O |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Pin 10 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output / I/O |
| Pin 11 | VCAP — Internal core regulator stabilization capacitor (per datasheet) |
| Pin 12 | VDD — Positive supply (4.5V to 5.5V) |
| Pin 13 | RP13/SDAx — Remappable I/O (typ. I2C data via PPS) |
| Pin 14 | RP14/SCLx — Remappable I/O (typ. I2C clock via PPS) |
| Pin 15 | RP15/UxTX — Remappable I/O (typ. UART TX via PPS) |
| Pin 16 | RP16/UxRX — Remappable I/O (typ. UART RX via PPS) |
| Pin 17 | RP17/SPIx — Remappable I/O (typ. SPI via PPS) |
| Pin 18 | RP18 — Remappable digital I/O |
| Pin 19 | VSS — Ground reference |
| Pin 20 | AVDD — Analog supply (connect to VDD with filter) |
| Pin 21 | AVSS — Analog ground |
| Pin 22 | RP38/PWM3H — Remappable I/O (typ. motor-control PWM via PPS) |
| Pin 23 | RP37/PWM3L — Remappable I/O (typ. complementary PWM via PPS) |
| Pin 24 | RP36/PWM2H — Remappable I/O (typ. motor-control PWM via PPS) |
| Pin 25 | RP35/PWM2L — Remappable I/O (typ. complementary PWM via PPS) |
| Pin 26 | RP34/PWM1H — Remappable I/O (typ. motor-control PWM via PPS) |
| Pin 27 | RP33/PWM1L — Remappable I/O (typ. complementary PWM via PPS) |
| Pin 28 | VDD — Positive supply (4.5V to 5.5V) |
| Pin 29 | RP32 — Remappable digital I/O |
| Pin 30 | RP31 — Remappable digital I/O |
| Pin 31 | RP30 — Remappable digital I/O |
| Pin 32 | RP29/T1CK — Remappable I/O (typ. Timer1 external clock via PPS) |
| Pin 33 | RP28 — Remappable digital I/O |
| Pin 34 | RP27 — Remappable digital I/O |
| Pin 35 | RP26/INT0 — Remappable I/O / external interrupt 0 |
| Pin 36 | VSS — Ground reference |
| Pin 37 | RP25/PGD3 — Remappable I/O / debug channel 3 data |
| Pin 38 | RP24/PGC3 — Remappable I/O / debug channel 3 clock |
| Pin 39 | RP23 — Remappable digital I/O |
| Pin 40 | RP22 — Remappable digital I/O |
| Pin 41 | RP21 — Remappable digital I/O |
| Pin 42 | RP20 — Remappable digital I/O |
| Pin 43 | VDD — Positive supply (4.5V to 5.5V) |
| Pin 44 | RP19 — Remappable digital I/O |
Typical Applications
DSPIC33EV32GM004-I/PT is suitable for 6 applications: Automotive Sensor and Touch Control Units, Industrial BLDC and ACIM Motor Drives, Appliance Control Boards, Digital Power Conversion and SMPS, Hearing-Protection and Industrial Safety Sensors, Test, Measurement and Data-Acquisition Nodes.
Automotive Sensor and Touch Control Units
Microchip explicitly targets the dsPIC33EV GM family, including the DSPIC33EV32GM004-I/PT, at automotive sensor and touch-control units exposed to noise and vibration. The native 4.5V to 5.5V operation gives 5V logic noise margins that 3.3V controllers cannot match in wiring-harness-adjacent environments, and the hardware DSP engine at 70 MIPS runs capacitive-touch processing, filtering, and sensor-fusion math in real time. Peripheral Pin Select lets designers route UART, LIN-oriented serial, and PWM signals to optimal physical pins for the harness layout, while the 3 external interrupts support torque-sensor or hall-sensor event capture. For under-hood positions, the -E/PT variant rated to +125C is the recommended substitution.
Recommended
Industrial BLDC and ACIM Motor Drives
The DSPIC33EV32GM004-I/PT fits motor-control drives through its 70 MIPS DSP core, high-resolution complementary PWM outputs, quadrature-encoder interface support, and 4 DMA channels that stream ADC results without CPU intervention. Running from a 5V supply, it drives gate-driver ICs whose logic thresholds assume 5V signaling, eliminating level-shifting stages between the controller and power stage in industrial servo and traction drives. The 32KB flash accommodates field-oriented control or trapezoidal commutation firmware with PI current loops executing at PWM frequency. Its 9 timers support dead-time generation, speed loops, and housekeeping scheduling concurrently. The I-grade -40C to +85C range covers typical industrial cabinet and machinery ambient conditions.
Recommended
Appliance Control Boards
Appliance electronics combine noisy inductive loads (compressors, pumps, fans) with touch user interfaces, and the dsPIC33EV32GM004-I/PT is designed exactly for this mix. The 5V core tolerates the surge-prone mains-referenced environment better than 3.3V MCUs, reducing brownout sensitivity; on-chip peripherals handle capacitive touch sensing, AC-zero-cross timing via external interrupt, and relay or triac drive PWM. The 32KB flash and 4KB RAM are sized for combined UI state machines plus compressor control algorithms. Peripheral Pin Select simplifies board revisions because communication pins can be re-mapped without PCB respins. At LCSC pricing around $3.18, it is also cost-competitive for high-volume consumer appliance BOMs.
Recommended
Digital Power Conversion and SMPS
In switched-mode power supplies, PFC stages, and LLC resonant converters, the DSPIC33EV32GM004-I/PT provides the DSP throughput (70 MIPS with MAC engine) needed for fast inner current loops and non-linear control laws. The 5V domain interfaces directly with common gate-driver and opto-isolator input thresholds, and its ADC/DMA pipeline samples input/output voltage and inductor current with minimal jitter. Complementary PWM outputs with configurable dead time drive half-bridge and full-bridge topologies safely. The 3 external interrupts support fast fault and cycle-by-cycle current limiting responses. Firmware fits comfortably in 32KB flash for a single-converter control application with protection state machines and startup sequencing included.
Recommended
Hearing-Protection and Industrial Safety Sensors
Safety-oriented sensing products such as electronic hearing-protection devices and industrial gas/flame detection benefit from the DSPIC33EV32GM004-I/PT's DSP engine, which executes band-splitting filters and threshold detectors on microphone or sensor inputs in real time. The 5V supply supports high-dynamic-range analog front ends and electret microphone bias circuits directly, and the -40C to +85C industrial rating covers outdoor and plant-floor conditions. Low-latency interrupt handling (3 external interrupt sources) enables fast shutdown or alarm actuation required by safety logic. Functional Safety (FuSa) support documentation available through Microchip assists developers building systems assessed under functional-safety frameworks, shortening certification preparation work.
Recommended
Test, Measurement and Data-Acquisition Nodes
The DSPIC33EV32GM004-I/PT serves as a compact acquisition and preprocessing node in industrial test equipment and distributed DAQ systems. Its 70 MIPS core applies decimation, averaging, or FFT-style preprocessing before transmitting data, and 4 DMA channels move ADC samples to RAM without CPU loading, sustaining continuous capture rates. UART/SPI/I2C links via Peripheral Pin Select connect to RS-485 transceivers or RF modules for plant-wide telemetry. The 5V-native design simplifies interfacing with legacy industrial signal levels common in retrofit measurement equipment, and the 44-TQFP exposes ample I/O for multiplexed channel front ends. The 32KB/4KB memory budget suits streaming nodes rather than logging-heavy designs - select the 128KB/256KB flash drop-in variants for larger buffers.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV32GM004-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV32GM004-E/PT | DSPIC33EV32GM004-H/PT | DSPIC33EV64GM004-I/PT | DSPIC33EV256GM004-E/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 32 KB (11K x 24) | 32 KB | 32 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 |
| DMA Channels / Timers | 4 / 9 | 4 / 9 | 4 / 9 | 4 / 9 | 4 / 9 |
Key Differentiators
- Native 5V operation eliminates level shifting (vs DSPIC33EP64MC504-E/MV)
- Extended temperature upgrade on same footprint (vs DSPIC33EV32GM004-E/PT)
- Flash growth without redesign (vs DSPIC33EV256GM004-E/PT)
Design Notes
The dsPIC33EV core regulator requires a low-ESR ceramic capacitor (typ. 10 uF, value per datasheet DS70005144H) on the VCAP pin; omitting it or using a high-ESR part causes core-supply instability and erratic resets. Decouple each VDD pair with 100 nF ceramics placed within 2 mm of the pins, and feed AVDD through an RC or ferrite filter from the 5V rail to keep ADC noise low. Estimated: at 70 MIPS the typical core current is in the tens of mA range - verify exact ICC from the family data sheet electrical characteristics table.
Use the 44-TQFP land pattern with Microchip's CAD downloads (footprint, symbol, 3D model available via Microchip component search engine). Keep the analog ground (AVSS) return path separate from PWM/power ground until a single-point star connection at the supply. Route remappable RPn pins so motor-control PWM pairs stay short and matched to gate drivers; PPS allows fixing routing mistakes in firmware, but physical pin proximity still matters for signal integrity at switching edges.
Do not exceed 5.5V on VDD - the 5V dsPIC33EV family is not wide-voltage and absolute maximum ratings apply immediately. MCLR requires the standard 10 kO pull-up plus RC network or debugger control during ICSP programming. Remember that PPS defaults: critical peripherals like PGC/PGD debug pins and some inputs have fixed or one-time-lockable assignments; consult Section 11.5 'Peripheral Pin Select' of the data sheet before finalizing the pin map, and consider enabling the PPS write lock in production firmware.
Estimated: a 44-TQFP (10x10 mm) on a standard 4-layer PCB typically presents theta_JA around 50-70 C/W; at an estimated 50 mA core+I/O current from 5V (0.25 W) the junction rise is roughly 12-18 C above ambient, leaving comfortable margin at +85C ambient for the I grade. Designs approaching the +125C E-grade limit should verify the exact theta_JA from the family data sheet thermal tables and consider 2-oz copper pours under the QFP for heat spreading.
Compliance Information
Environmental compliance declarations were not present in the retrieved distributor data for this exact ordering code; obtain the official Microchip environmental datasheet for the exact MPN before regulatory sign-off. The dsPIC33EV family is positioned by Microchip for automotive applications but AEC-Q100 qualification status of this specific part must be confirmed with the manufacturer.
