DSPIC33EV128GM004-I/PT - 70MIPS 5V DSC 128KB | Microchip
MPN: DSPIC33EV128GM004-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.42 | $4.42 |
| 10 | $4.05 | $40.50 |
| 100 | $3.61 | $361.00 |
| 500 | $3.35 | $1,675.00 |
| 1,000 | $3.1 | $3,100.00 |
DSPIC33EV128GM004-I/PT Overview
A digital signal controller combines the computational architecture of a digital signal processor with the peripheral integration and ease of use of a microcontroller. Within the embedded-systems hierarchy, the dsPIC33EV sits under the dsPIC33E family, which belongs to Microchip's 16-bit MCU/DSC portfolio, itself a subcategory of digital signal controllers used in industrial power conversion, motor control, and automotive sensing systems. DSCs typically add hardware multiply-accumulate (MAC) DSP instructions, high-resolution PWM, and fast ADCs to a standard MCU core.
Key features of the DSPIC33EV128GM004-I/PT include its 5V-rated operation, which improves noise immunity in harsh electrical environments compared with 3.3V-only parts; single-cycle MAC and DSP engine support for control loops; ECC Flash for functional-safety oriented designs (DigiKey lists it as a dsPIC 33EV Functional Safety (FuSa) device); and Peripheral Pin Select (PPS), which allows remapping of many digital peripherals to any compatible RPn pin for flexible board routing.
Technical depth: the device executes up to 70 million instructions per second at its maximum clock frequency and integrates peripherals such as motor-control PWM, SENT, op-amps, and analog comparators per the family datasheet (DS70005144H). The 128KB Flash is organized in 24-bit instruction words, and the core supports DSP multiply-accumulate and barrel-shifter operations. The industrial temperature grade (suffix I) covers -40C to +85C.
Typical applications include brushless DC and PMSM motor control in appliances, automotive sensors and touch-control units, digital power supplies and AC-DC converters, and industrial HVAC controls where robust 5V noise immunity is required.
Design consideration: budget decoupling on every VDD/VDDCORE pin and provide the correct VCAP capacitor for the internal core regulator; the 5V core-family devices are sensitive to supply transients in high-PWM-noise environments.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone. Pricing references are as of 2026-09-26.
Drop-in alternatives for DSPIC33EV128GM004-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 DSPIC33EV128GM004-I/PT (same form factor and footprint) — differing in Package, Core Architecture, Functional Safety Support, Program Memory (Flash), Operating Temperature Range.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV256GM004-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV64GM004-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV128GM104-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.75 / Unit
View Datasheet →DSPIC33EV128GM004-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.45 / Unit
View Datasheet →DSPIC33EV256GM104-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.85 / Unit
View Datasheet →DSPIC33EV128GM004-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E DSC |
| Maximum CPU Speed | 70 MIPS |
| Flash Program Memory | 128 KB (43K x 24) with ECC |
| RAM | 8 KB |
| Supply Voltage | 5 V |
| Package | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Peripherals | PWM, SENT, op-amps, comparators, PPS |
| Peripheral Pin Select | Yes (PPS remapping) |
| Functional Safety | FuSa capable (per DigiKey listing) |
| Series | dsPIC33EV |
| Program Memory Word Width | 24-bit |
| Oscillator | Internal + external oscillator options |
DSPIC33EV128GM004-I/PT 44-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EV128GM004-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 DSPIC33EV128GM004-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV128GM004-I/PT is suitable for 6 applications: Brushless DC Motor Control, Automotive Sensors and Control Units, Digital Power Supplies and AC-DC Converters, Appliance Control Boards, Industrial HVAC and Pump Control, Touch Sensing and HMI Control.
Brushless DC Motor Control
The DSPIC33EV128GM004-I/PT fits appliance and industrial BLDC/PMSM drives because its 70 MIPS 16-bit DSP core executes field-oriented control current loops with single-cycle MAC instructions, while on-chip motor-control PWM and op-amps reduce external component count. The 5V logic domain tolerates the dV/dt noise of switching inverters far better than 3.3V controllers, improving robustness in harsh motor environments. Placed as the main control MCU driving a three-phase gate-driver stage, it delivers tens of kilohertz PWM with complementary outputs and dead-time control; the trade-off is higher switching loss than lower-frequency control schemes, so gate-driver timing must be budgeted in firmware.
Recommended
Automotive Sensors and Control Units
Microchip positions the dsPIC33EV GM family specifically for automotive sensors and touch/control units operating under noise and vibration. The DSPIC33EV128GM004-I/PT contributes 5V supply immunity, ECC Flash protecting against single-bit memory upsets, and the SENT peripheral for direct interface to automotive sensor links. In a sensor node, the DSC digitizes analog inputs, applies filtering/DSP corrections, and outputs corrected values over SENT or LIN-compatible UART mapping via Peripheral Pin Select. For extended under-hood temperatures, the -E or GM104 variants of the same die offer higher-grade operation with no PCB change, enabling a single layout across temperature grades.
Recommended
Digital Power Supplies and AC-DC Converters
Digital power conversion benefits from the DSPIC33EV128GM004-I/PT's 70 MIPS core, which closes voltage- and current-mode loops with DSP-filtered control at high bandwidth, and from its high-resolution PWM peripherals for precise duty-cycle control in LLC, flyback, and PFC stages. The 5V domain simplifies interfacing with gate drivers and the noisy environment near switching magnetics. Implementation typically uses the on-chip op-amps for current-shunt amplification and the ADC triggered by PWM for cycle-by-cycle control. The key trade-off versus an analog controller is firmware complexity, offset by flexibility to re-tune compensation purely in software.
Recommended
Appliance Control Boards
Home appliance main boards (washing machines, refrigerators, HVAC blowers) need robust control in electrically noisy 220V environments with vibration and wide temperature swings. The DSPIC33EV128GM004-I/PT addresses this with 5V noise immunity, ECC Flash for field reliability, integrated op-amps/comparators for current and voltage sensing, and remappable I/O (PPS) that eases PCB routing on cost-driven single-layer-friendly layouts. It runs the motor control loop, user-interface scanning, and communication simultaneously within its 70 MIPS budget. Using one dsPIC33EV across multiple appliance models reduces software reuse cost, and the industrial -I grade covers typical enclosure ambient conditions.
Recommended
Industrial HVAC and Pump Control
Variable-speed fans, pumps, and compressors in industrial HVAC require sensorless motor control plus robust communications. The DSPIC33EV128GM004-I/PT provides the 70 MIPS DSP capability for back-EMF observers and the PWM peripherals for inverter control, while the SENT and remappable UART/SPI/I2C peripherals support BACnet-style or proprietary network interfaces through PPS routing. The 5V I/O rides through the voltage dips and transients typical of industrial cabinets better than 3.3V devices, improving field reliability. Designers should allocate decoupling on all VDD pins and enforce star grounding between the power stage and the controller to keep ADC readings clean during PWM switching.
Recommended
Touch Sensing and HMI Control
Microchip's dsPIC33EV GM family is explicitly listed for touch and control units in harsh environments. The DSPIC33EV128GM004-I/PT implements capacitive touch sensing on remappable pins with 5V charge-transfer robustness that resists water spray and EMI, common failure modes for 3.3V touch systems in appliances and automotive interiors. The 70 MIPS core runs touch acquisition plus display/HMI update loops concurrently, and ECC Flash preserves stored calibration data integrity across power cycles. Implementation uses the CTMU/analog peripherals for charge measurement with scanning handled in firmware; for production, firmware-driven drift compensation and the industrial temperature range maintain touch sensitivity across the product's lifetime.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV128GM004-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM004-I/PT | DSPIC33EV64GM004-I/PT | DSPIC33EV128GM104-I/PT |
|---|---|---|---|---|
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 128 KB (43K x 24) ECC | 256 KB (86K x 24) ECC | 64 KB (21K x 24) ECC | 128 KB (43K x 24) ECC |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Temperature Grade | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | Extended grade (GM104 family) |
Key Differentiators
- 5V supply noise immunity (vs DSPIC33EP-family 3.3V DSCs)
- 128KB ECC Flash at mid-family price (vs DSPIC33EV64GM004-I/PT)
- Temperature grade flexibility (vs DSPIC33EV128GM004-E/PT)
Design Notes
Decouple every VDD pin of the DSPIC33EV128GM004-I/PT with 100 nF ceramic capacitors placed within 2 mm of each pin, plus bulk capacitance per the family datasheet. The internal core regulator requires the specified capacitance on the VDDCORE/VCAP pin - use the exact value and type recommended in the datasheet; an incorrect VCAP can cause core brownouts that manifest as random resets. Estimated: with 70 MIPS operation, dynamic current scales with Fcy, so budget supply ripple margin in high-PWM-duty motor applications.
Separate the analog domain: filter AVDD with an RC network (ferrite bead plus 10 uF plus 100 nF is a typical starting point) and route analog ground back to a single star point away from PWM switching currents. Use Peripheral Pin Select (Section 11.5 of DS70005144H) to move fast digital signals away from analog traces during layout, which is a unique benefit of this family. Keep SENT/encoder inputs physically distant from motor phase nodes.
Do not mix -I and -E temperature grades across a production batch: both are the same die and footprint, but derating calculations must assume the lower grade in mixed builds. Confirm that firmware flash usage stays under the 43K x 24 word limit with margin for bootloaders - if an OTA scheme is planned, size the update bank before choosing between 64KB, 128KB, and 256KB family variants, since they are pin-compatible but not code-size interchangeable.
Compliance Information
Compliance details were not present in the provided web data; confirm RoHS/REACH status on the Microchip product page before production. AEC-Q100 qualification for this exact ordering code was not stated in provided data - verify with Microchip for automotive use.
