DSPIC33EV256GM103T-I/M5 - 16-bit 70 MIPS DSC 256KB Flash | Microchip
MPN: DSPIC33EV256GM103T-I/M5 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.16 | $516.00 |
| 500 | $4.63 | $2,315.00 |
| 1,000 | $4.15 | $4,150.00 |
DSPIC33EV256GM103T-I/M5 Overview
A digital signal controller combines the computational architecture of a digital signal processor (DSP) with the peripherals and ease of use of a microcontroller (MCU). Within the power-management hierarchy of embedded systems, the DSC sits between a general-purpose MCU and a dedicated DSP, offering multiply-accumulate DSP instructions for control loops such as motor control, digital power conversion, and sensor signal processing.
Key features include a 5V-tolerant core operating from a 4.5V to 5.5V supply, which is a major advantage in harsh industrial and automotive environments where 3.3V devices require level shifting; 25 general-purpose I/O pins; Peripheral Pin Select (PPS) for flexible remapping of digital peripherals; and Functional Safety (FuSa) support per Microchip's product documentation.
The dsPIC33EV core integrates DSP engine instructions, multiple DMA channels, and a seven-timer system, enabling tight control loops and efficient data movement without CPU overhead. The 256KB Flash supports self-programming for field updates, and the 16KB RAM accommodates control-loop state, communication buffers, and DSP working arrays.
Typical applications include industrial motor control and drives, digital power supplies (PFC, LLC), automotive body and powertrain auxiliary modules, and appliance control boards where 5V noise immunity is valued.
Design consideration: because this is a 5V device, verify that any connected 3.3V peripherals or sensors are 5V-tolerant, or add level shifters; the exposed pad of the UQFN-36 must be soldered to a grounded copper pour for thermal and signal-integrity performance.
This page synthesizes distributor listings, drop-in alternatives from the same dsPIC33EV family, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EV256GM103T-I/M5 — 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 DSPIC33EV256GM103T-I/M5 (same form factor and footprint) — differing in Package, Core Architecture, Packaging, RAM, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV256GM103T-E/M5
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EV128GM103T-I/M5
✅ Drop-In✓ In Stock
$3.52 / Unit
View Datasheet →DSPIC33EV256GM003T-I/M5
✅ Drop-In✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EV256GM002-E/SO
✅ Drop-In✓ In Stock
$7.18 / Unit
View Datasheet →DSPIC33EV256GM103T-I/M5 Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC core |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 256KB (85.5K x 24) |
| RAM | 16KB (16K x 8) |
| Operating Voltage Range | 4.5 V to 5.5 V |
| Number of I/O Pins | 25 |
| DMA Channels | 4 |
| Timers | 7 |
| Package | 36-UQFN (5x5 mm) with exposed pad |
| Operating Temperature Range | -40C to +85C (I grade) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T) |
| Product Family | dsPIC33EV |
| Functional Safety Support | Yes (FuSa) |
| Peripheral Pin Select (PPS) | Yes |
| Maximum Package Frequency | 70 MHz |
| RoHS Status | Compliant |
DSPIC33EV256GM103T-I/M5 70 mhz Pin Configuration Guide
Pin configuration for DSPIC33EV256GM103T-I/M5 (70 mhz 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 DSPIC33EV256GM103T-I/M5.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV256GM103T-I/M5 is suitable for 6 applications: Industrial Motor Control, Digital Power Supplies (PFC / LLC), Automotive Body and Auxiliary Modules, Appliance Control Boards, Industrial Sensor and Signal Processing Nodes, Harsh-Environment Embedded Control (FuSa-Oriented Designs).
Industrial Motor Control
The DSPIC33EV256GM103T-I/M5 is well suited to industrial motor drives because its 70 MIPS 16-bit DSP core executes field-oriented control (FOC) loops with single-cycle multiply-accumulate instructions, while its native 4.5V to 5.5V supply directly interfaces 5V gate drivers, current-shunt amplifiers, and industrial position sensors without level shifting. Four DMA channels offload ADC result transfers, keeping CPU cycles available for the control loop and the CAN fieldbus stack. In a typical design, the on-chip ADC samples phase currents each PWM cycle and the DSP core updates the inverter duty within microseconds. The 256KB Flash accommodates FOC tables, multiple motor profiles, and field-updatable firmware in the same M5 footprint as the 128KB variant, allowing a single PCB to span product tiers.
Recommended
Digital Power Supplies (PFC / LLC)
Digital power conversion benefits directly from this DSC's combination of high-resolution PWM, fast ADC sampling, and DSP math. The dsPIC33EV's 70 MIPS core closes voltage- and current-mode loops for PFC and LLC stages at switching frequencies common in server and telecom power, and the 5V I/O drives MOSFET gate-driver ICs directly. According to Microchip's dsPIC33EV family documentation, the family is aimed at exactly these harsh-environment, high-performance control tasks. The 16KB RAM holds control coefficients and transient logger buffers, while four DMA channels stream ADC data with minimal jitter. Because the controller tolerates the noisy 5V rail environment typical of power boards, designers reduce isolation and filtering stages compared with 3.3V controllers, improving overall supply robustness and BOM cost.
Recommended
Automotive Body and Auxiliary Modules
Microchip positions the dsPIC33EV family for automotive applications, and the DSPIC33EV256GM103T-I/M5 fits body-control, lighting, pump, and actuator modules that run on regulated 5V rails and communicate over CAN. The CAN peripheral and Peripheral Pin Select allow the same PCB layout to be reconfigured for different node roles by firmware alone. The 25 I/O pins drive relays, LEDs, and PWM loads directly at 5V logic levels, improving noise margin in electrically noisy vehicle environments. For engine-bay or on-transmission locations exceeding +85C, the pin-compatible DSPIC33EV256GM103T-E/M5 extends the range to +125C without any layout change. The 256KB Flash supports OTA-style field updates and storage of calibration data across multiple vehicle variants on one hardware platform.
Recommended
Appliance Control Boards
Home and commercial appliances - washing machines, dishwashers, compressors, and induction cooktops - require robust motor control and user-interface handling in electromagnetically noisy environments. The DSPIC33EV256GM103T-I/M5 addresses this with its 5V core, high EMI robustness, and DSP-class control performance at 70 MIPS. The 25 I/O pins simultaneously drive a seven-segment display, capacitive-touch or mechanical buttons, and a BLDC motor via a three-phase inverter. Its 256KB Flash stores multiple wash cycles, fault logs, and communication firmware, while the 16KB RAM supports sensor filtering for load imbalance detection. Using the same 36-UQFN M5 footprint across the dsPIC33EV memory ladder lets appliance makers qualify one PCB and scale features across product lines.
Recommended
Industrial Sensor and Signal Processing Nodes
The DSP engine of the dsPIC33EV makes the DSPIC33EV256GM103T-I/M5 effective for sensor nodes that must filter, demodulate, or FFT-process signals locally - vibration monitors, flow meters, and weigh-scale front ends. The 16-bit core with DSP instructions computes IIR/FIR filters and RMS calculations faster than a general-purpose MCU at equivalent clock, and the 4.5V to 5.5V operation matches industrial 5V sensor excitation and 4-20mA loop front-ends directly. Peripheral Pin Select lets designers route UART, SPI, or PWM outputs to optimal physical pins for the sensor PCB, shortening traces and improving signal integrity. The 256KB Flash holds lookup tables for linearization and compensation, and the exposed-pad UQFN package provides a low-inductance ground reference for precision analog sections.
Recommended
Harsh-Environment Embedded Control (FuSa-Oriented Designs)
For general harsh-environment control systems - pumps, HVAC, chargers, and factory automation - the DSPIC33EV256GM103T-I/M5 offers Functional Safety (FuSa) support as listed in DigiKey's catalog data, plus the electrical robustness of a 5V CMOS dsPIC core rated for industrial temperature ranges. Seven timers provide watchdog, input-capture, and output-compare functions needed for safety-relevant timing supervision, and the seven-timer plus four-DMA architecture allows redundant-path monitoring patterns. The wide availability of the dsPIC33EV family (multiple Flash sizes in identical packages) enables functional redundancy designs where a second, smaller-memory device on the same footprint performs checking computations. Long-term availability from Microchip supports the extended lifecycles typical of industrial and appliance equipment.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV256GM103T-I/M5 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM103T-E/M5 | DSPIC33EV128GM103T-I/M5 | DSPIC33EV256GM003T-I/M5 |
|---|---|---|---|---|
| Package | 36-UQFN (5x5 mm) | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same | 36-UQFN (5x5 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256KB (85.5K x 24) | 256KB (85.5K x 24) | 128KB | 256KB (85.5K x 24) |
| RAM | 16KB (16K x 8) | 16KB (16K x 8) | 16KB (16K x 8) | 16KB (16K x 8) |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| 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 |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| CAN Peripheral | Yes | Yes | Yes | No (GM003 variant) |
Key Differentiators
- Native 5V operation eliminates level shifting (vs STM32-class 3.3V MCUs)
- Extended-temperature pin-compatible upgrade path (vs DSPIC33EV256GM103T-E/M5)
- Memory-scalable footprint for product tiers (vs DSPIC33EV128GM103T-I/M5)
Design Notes
The 36-UQFN M5 package includes an exposed pad (EP) that must be soldered to a grounded copper pour via an array of thermal vias. The EP is the primary ground return and heat-removal path for the die; omitting it causes elevated junction temperatures and noisy analog ground references. Microchip application guidance for QFN devices recommends a 5x5 via array (about 9 to 16 vias) under the pad, filled or tented per your assembly process. Verify reflow profile per Microchip package outline drawing for UQFN-36.
Decouple the 4.5V to 5.5V VDD rail with at least one 0.1uF ceramic capacitor placed within 2 mm of each VDD pin, plus a 4.7uF to 10uF bulk capacitor near the device. Because the dsPIC33EV runs its core at 5V, supply ripple couples directly into ADC reference accuracy if AVDD/VREF are shared with the digital rail; use an RC or ferrite filter between VDD and AVDD on designs requiring better than 10-bit effective ADC accuracy. Estimated: a 10 mV rail ripple on a 5V system corresponds to roughly 2 LSB of error on a 12-bit ADC full scale.
Peripheral Pin Select (PPS) is powerful but a common source of bring-up failures: digital peripherals must be remapped to RPn/RPIn pins in firmware before they function, and some assignments conflict per Section 11.5 of the family datasheet (DS70005144H). Additionally, do not confuse the -I (to +85C) and -E (to +125C) temperature suffixes when sourcing: the T in DSPIC33EV256GM103T-I/M5 denotes tape-and-reel packaging, while M5 denotes the 36-UQFN package code - these suffixes are frequently misread in BOMs.
Compliance Information
RoHS compliance indicated by standard Microchip -I/M5 commercial grade shipping status on distributor listings. Verify AEC-Q100 qualification status and REACH declarations directly with Microchip for safety-critical automotive programs.
