DSPIC33EV128GM103T-I/M5 - 16-bit 5V DSC 128KB Flash | Microchip
MPN: DSPIC33EV128GM103T-I/M5 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.72 | $47.20 |
| 100 | $4.18 | $418.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.52 | $3,520.00 |
DSPIC33EV128GM103T-I/M5 Overview
A digital signal controller combines the computational throughput of a digital signal processor (DSP) with the peripheral integration and control-oriented architecture of a microcontroller (MCU). Within the power-management hierarchy of embedded systems, DSCs sit between general-purpose MCUs and dedicated DSPs, offering multiply-accumulate (MAC) and DSP instruction support alongside typical MCU peripherals such as timers, PWM modules, and serial interfaces. The dsPIC33EV family is positioned for harsh-environment industrial and automotive control nodes.
Key differentiating features include native 5V operation (eliminating an external level-shifting supply rail in 5V industrial and automotive systems), an on-chip CAN 2.0B controller for vehicular and industrial networks, six motor-control PWM channels for three-phase inverter drive, three on-chip operational amplifiers that reduce external analog BOM count, and a CTMU (Charge Time Measurement Unit) for capacitive-touch and time-domain sensing. SENT peripheral support addresses automotive sensor interfaces.
Architecturally, the device executes a modified Harvard instruction set at up to 70 MIPS with a hardware DSP engine supporting single-cycle MAC and dual data fetch. Error-correcting code (ECC) on the 128KB Flash enhances functional-safety integrity, and four DMA channels offload high-bandwidth peripheral data transfers such as ADC sample streams. The CPU clock is supplied up to 60 MHz per Mouser data, corresponding to the family's 70 MIPS rating.
Typical applications include brushless DC and PMSM motor control in appliances, automotive body and powertrain auxiliaries using CAN and SENT, digital power supplies, and industrial sensing nodes leveraging the CTMU and op amps.
Design consideration: the 36-UQFN 5x5 mm exposed pad is the primary thermal and ground path - a solid ground pour array under the pad is strongly recommended for reliable operation across the -40C to +125C industrial range.
This page synthesizes distributor data, same-family drop-in alternatives, and design guidance not found in a single manufacturer datasheet.
Drop-in alternatives for DSPIC33EV128GM103T-I/M5 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV128GM103T-E/M5
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV128GM103T-H/M5
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV64GM103T-I/M5
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV256GM103T-I/M5
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EV128GM103T-I/M5 Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| Max CPU Speed | 70 MIPS (60 MHz clock) |
| Program Memory | 128 KB (43K x 24) ECC Flash |
| RAM | 8 KB |
| Supply Voltage | 5 V (single supply) |
| Operating Temperature | -40C to +85C (I grade) |
| Package | 36-UQFN (5x5 mm) exposed pad |
| CAN Controller | Yes, CAN 2.0B |
| Motor Control PWM | 6 channels (MC PWM) |
| On-chip Op Amps | 3 |
| CTMU | Yes (Charge Time Measurement Unit) |
| SENT Peripheral | Yes |
| Timers | 7 |
| DMA Channels | 4 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Packaging | Tape & Reel (T suffix) |
DSPIC33EV128GM103T-I/M5 36-uqfn (5x5 mm) exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EV128GM103T-I/M5 (36-uqfn (5x5 mm) 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 DSPIC33EV128GM103T-I/M5.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV128GM103T-I/M5 is suitable for 6 applications: BLDC / PMSM Motor Control, Automotive Body and Sensor Nodes, Digital Power Supplies and Converters, Industrial Sensing and HMI Panels, Appliance Control Boards, Instrumentation and Measurement Front Ends.
BLDC / PMSM Motor Control
The six motor-control PWM channels and 70 MIPS DSP core make the dsPIC33EV128GM103T-I/M5 a natural fit for three-phase brushless DC and permanent-magnet synchronous motor drives found in appliances, pumps, fans and power tools. The three on-chip op amps amplify shunt-based phase-current feedback internally, removing an external amplifier stage and its offset/drift errors. The fast ADC with 4-channel DMA streams current samples into the control loop without CPU intervention, preserving MIPS for the field-oriented-control (FOC) mathematics. Running on a single 5V rail, the DSC interfaces directly with 5V gate drivers, simplifying the power stage. Trade-off: at large PWM counts, budget GPIO multiplexing carefully via Peripheral Pin Select so encoder or Hall inputs do not collide with PWM outputs.
Recommended
Automotive Body and Sensor Nodes
The on-chip CAN 2.0B controller plus SENT peripheral position this DSC for automotive auxiliary nodes such as window-lift modules, pump controllers, position sensors and lighting ballasts. CAN 2.0B handles both 11-bit and 29-bit identifiers for OBD and body-network traffic, while SENT (SAE J2716) interfaces directly with modern throttle-position and pressure sensors outputting nibble-encoded data. The 5V supply matches legacy 12V-vehicle 5V sensor rails, and the ECC Flash protects program integrity against automotive EMI exposure. For modules underhood, select the -E (-40C to +125C) or -H (-40C to +150C) drop-in variants of the same footprint. An external CAN transceiver is mandatory; the CTMU can also implement low-cost touch or level sensing in sealed control panels.
Recommended
Digital Power Supplies and Converters
Switching power converters - PFC stages, LLC resonant converters, and telecom rectifiers - need deterministic, high-rate control loops that this 70 MIPS DSC delivers. The complementary PWM generator on the motor-control module produces phase-shifted or complementary outputs with programmable dead time, essential for half-bridge and full-bridge topologies. The ADC triggers synchronously from the PWM timer so current and voltage samples land at consistent points in the switching cycle, minimizing switching-noise corruption. DMA moves conversion results without jitter-inducing interrupts. Because the core runs at 5V, gate-drive interfaces to many driver ICs need no level translation. For highest-density designs, the 36-UQFN 5x5 mm footprint keeps the controller close to the power stage on double-sided boards.
Recommended
Industrial Sensing and HMI Panels
The CTMU (Charge Time Measurement Unit) measures capacitance by precise time-domain charge measurement, enabling capacitive-touch buttons, sliders and liquid-level sensing without dedicated touch ICs, while the three on-chip op amps buffer and amplify resistive sensor bridges (pressure, load cells, RTD conditioning). The 8KB RAM and DMA accommodate ADC oversampling and digital filtering of sensor streams, and the ECC Flash safeguards data logging code in electrically noisy factory environments. UART, SPI and I2C connect to displays, EEPROMs and industrial buses. Because the panel runs from an industrial 5V rail, sensor interfacing is direct - a real BOM saving versus 3.3V MCUs requiring translation. The -40C to +85C industrial grade matches unconditioned factory-floor enclosures.
Recommended
Appliance Control Boards
Major appliances - washing machines, refrigerators, dishwashers - combine a motor drive with user-interface and safety logic, exactly the profile this single DSC covers: six PWM channels drive the direct-drive or induction motor, the CTMU handles capacitive touch buttons behind a glass panel, and CAN or UART links modules in modular appliance architectures. Microchip explicitly positions the dsPIC33EV family for appliance environments, where humidity, line transients and temperature cycling demand robust 5V CMOS operation and ECC-protected Flash. One 36-UQFN controller replacing a separate MCU plus motor-control ASIC cuts board area and BOM cost. For appliance motors with elevated junction temperatures from enclosed compartments, the same-footprint -E variant (-40C to +125C) provides thermal margin.
Recommended
Instrumentation and Measurement Front Ends
The CTMU provides sub-nanosecond-class charge timing useful for time-of-flight, resistance and capacitance measurement, while the DSP MAC engine executes FIR/IIR filters and FFTs on sampled data at up to 70 MIPS - enough for real-time spectral analysis of vibration or acoustic signals. The three op amps serve as programmable-gain front ends for bridge and current sensors, and four DMA channels sustain continuous ADC streaming into the 8KB RAM. The ECC Flash ensures firmware integrity for instruments requiring repeatable, verifiable behavior. Application ranges include handheld multimeters, sensor conditioners, and condition-monitoring nodes. Digital communication to a host PC or PLC proceeds over UART, SPI or CAN; 5V signaling improves noise immunity across cable runs versus 3.3V logic.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV128GM103T-I/M5 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV128GM103T-E/M5 | DSPIC33EV128GM103T-H/M5 | DSPIC33EV64GM103T-I/M5 | DSPIC33EV256GM103T-I/M5 |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 36-UQFN (5x5 mm) | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same |
| Program Flash | 128 KB (43K x 24) ECC | 128 KB ECC | 128 KB ECC | 64 KB ECC | 256 KB ECC |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Performance | 70 MIPS, 5V | 70 MIPS, 5V | 70 MIPS, 5V | 70 MIPS, 5V | 70 MIPS, 5V |
| Operating Temperature | -40C to +85C (I) | -40C to +125C (E) | -40C to +150C (H) | -40C to +85C (I) | -40C to +85C (I) |
| CAN / PWM / Op Amps | CAN 2.0B / 6 MC PWM / 3 op amps | Same peripheral set | Same peripheral set | Same peripheral set | Same peripheral set |
| Primary Selection Reason | Standard industrial grade, balanced memory | Underhood / inverter heat | Extreme 150C environments | Cost-down for small firmware | Headroom for large firmware/OTA |
Key Differentiators
- Native 5V operation with 70 MIPS DSP core (vs DSPIC33EP64MC503T-I/TL)
- Balanced 128KB ECC Flash for motor-control firmware (vs DSPIC33EV64GM103T-I/M5)
- Thermal scalability without redesign (vs DSPIC33EV128GM103T-I/M5 (self) vs -E/-H variants)
Design Notes
The 36-UQFN 5x5 mm exposed pad (EP) is the main ground and thermal path. Place a 3x3 or 4x4 array of thermal vias (0.3 mm drill, filled or tented) under the EP connecting to the ground plane, and ensure the stencil aperture covers about 50-70% of the pad to avoid solder voiding. Peripheral Pin Select (PPS) means early layout decisions should lock PWM, encoder and CAN pin assignments before routing; re-verify the pin map against the datasheet pin tables after any firmware device-configuration change.
Operate from a clean 5V rail with 0.1 uF ceramics at every VDD/VSS pin pair plus 4.7-10 uF bulk near the device. In motor-drive or digital-power boards, place the controller ground as a quiet analog island joined to the power ground at a single point near the current-sense shunts feeding the on-chip op amps - this preserves ADC accuracy despite several-amp switching currents. If the board is powered from a 12V or 24V rail, use a wide-input step-down or LDO rated for automotive transients (load dump) in vehicle installations.
Estimated: for an -I grade part (max 85C ambient), budget total power as core plus I/O. With 60 MHz core and moderate I/O loading, dissipation is typically on the order of 0.2-0.5 W; with the UQFN EP soldered to a ground pour of roughly 2 cm2 of 2 oz copper, expected junction rise stays well under the -40C to +85C envelope. If the same board must survive enclosure temperatures above 85C, populate the drop-in -E (-125C) or -H (-150C) variant - no layout change required.
Three recurring pitfalls: (1) forgetting the CAN transceiver - the on-chip CAN module outputs logic-level CANTX/CANRX and cannot drive the bus directly; (2) enabling PPS remapping at runtime without proper lock/unlock sequencing, which can silently reroute PWM outputs; (3) programming with a non-T-aware tape profile - the T suffix means tape-and-reel, and reflow profiles must respect the UQFN MSL rating per the shipping bag label. Always pull the family errata sheet from the Microchip product page before tape-out.
Compliance Information
RoHS compliant and lead-free per distributor listings for current Microchip production. REACH/halogen-free/conflict-minerals declarations should be confirmed via the certificate on the Microchip product page.
