DSPIC33EV256GM004-E/ML - 16-Bit 5V DSC 256KB Flash | Microchip
MPN: DSPIC33EV256GM004-E/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 |
| 1,000 | $0 | $0.00 |
DSPIC33EV256GM004-E/ML Overview
A digital signal controller combines the computational architecture of a microcontroller with the math-processing capability of a DSP engine. In the power-management hierarchy of embedded systems, the DSC sits between general-purpose MCUs and dedicated DSPs: it executes deterministic real-time control loops (such as field-oriented motor control) while also handling general firmware tasks. The dsPIC33EV family belongs to Microchip's 16-bit dsPIC33 product line, positioned for 5V-tolerant, harsh-environment designs.
Key features of this part include a 5V-tolerant supply rail (removing the need for external level shifting in 12V/24V industrial systems), 256KB of ECC-protected Flash for functional-safety-oriented designs, six motor-control PWM channels, four integrated operational amplifiers, a CTMU (Charge Time Measurement Unit) for capacitive touch and time measurement, and a SENT peripheral for automotive sensor interfaces.
Architecturally, the device runs the dsPIC33EV 16-bit core with DSP multiply-accumulate instructions, delivering up to 70 MIPS class performance across the family (60 MHz CPU clock for this variant). The on-chip op amps offload external analog front ends in current-sense paths, while ECC Flash mitigates single-bit faults in noisy electromechanical environments.
Typical applications include brushless DC and PMSM motor drives in appliances, automotive body and powertrain subsystems using SENT, industrial power supplies and inverters, and electric tool controls where 5V noise immunity matters.
Design consideration: because the -E suffix extends the junction temperature rating, verify your PCB copper pour and theta-JA calculations at 125C ambient, and use the internal op amps with careful analog ground partitioning to preserve signal integrity.
This page synthesizes distributor availability data, same-footprint alternatives, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EV256GM004-E/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 DSPIC33EV256GM004-E/ML (same form factor and footprint) — differing in Operating Temperature, Package, Product Family, Core Architecture, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV256GM004-I/ML
✅ Drop-In✓ In Stock
$3.36 / Unit
View Datasheet →DSPIC33EV128GM004-E/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →DSPIC33EV64GM004-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP256MC504-E/ML
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View Datasheet →DSPIC33EP256GP504-E/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →DSPIC33EP64MC504-E/MV
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.75 / Unit
View Datasheet →DSPIC33EV256GM004-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC DSC |
| CPU Clock | 60 MHz |
| Family MIPS Class | Up to 70 MIPS (dsPIC33EV family) |
| Flash Memory | 256 KB (ECC) |
| RAM | 16 KB |
| Supply Voltage | 5 V |
| Motor Control PWM Channels | 6 MC PWM |
| On-Chip Op Amps | 4 |
| CTMU | Yes (Charge Time Measurement Unit) |
| SENT Peripheral | Yes |
| Package | 44-QFN (8x8 mm), ML suffix |
| Operating Temperature | -40C to +125C (E suffix, extended) |
| Mounting Type | Surface Mount |
| Product Family | dsPIC33EV 5V Digital Signal Controllers |
| Target Applications | Appliances, industrial, automotive |
DSPIC33EV256GM004-E/ML 44-qfn (8x8 mm), ml suffix Pin Configuration Guide
Pin configuration for DSPIC33EV256GM004-E/ML (44-qfn (8x8 mm), ml suffix 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 DSPIC33EV256GM004-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV256GM004-E/ML is suitable for 6 applications: BLDC/PMSM Motor Control, Automotive Sensor Interfaces (SENT), Appliance Control Boards, Industrial Power Supplies and Inverters, Capacitive Touch User Interfaces, Electric Tool and E-Bike Controllers.
BLDC/PMSM Motor Control
The DSPIC33EV256GM004-E/ML fits safety-oriented motor control because it pairs six motor-control PWM channels with four on-chip operational amplifiers, allowing current-sense amplification without external op amps in field-oriented-control (FOC) drives. The 60 MHz 16-bit DSP core executes FOC loop mathematics with deterministic latency, and the 5V-tolerant I/O connects directly to gate drivers on 12V/24V rails. In an appliance compressor or fan drive, the controller sits between the current-shunt resistors and the three-phase inverter, sampling phase currents through the internal op amps and updating the PWM duty cycle each control period. The extended -40C to +125C rating permits mounting near motor windings where 3.3V controllers would exceed their limits.
Recommended
Automotive Sensor Interfaces (SENT)
The integrated SENT peripheral makes the DSPIC33EV256GM004-E/ML well suited to automotive sensor communication, where Single Edge Nibble Transmission is the standard link between smart sensors and ECUs. The 5V supply matches automotive sensor rails directly, and the extended -40C to +125C operating range covers underhood and body-zone locations. In a typical use, the DSC decodes SENT nibbles from a pressure or position sensor, applies calibration in the DSP core, and forwards data over CAN (via an external transceiver). The 256KB ECC Flash provides headroom for protocol stacks and diagnostic firmware, while ECC protection mitigates bit faults in the electromagnetically noisy vehicle environment. Verify the required AEC qualification level for your program.
Recommended
Appliance Control Boards
Appliance controllers benefit from the DSPIC33EV256GM004-E/ML's combination of 5V noise immunity, 256KB ECC Flash, and the CTMU for capacitive touch interfaces. In a washing machine or dishwasher main board, the DSC drives the motor via the six MC PWM channels, reads capacitive touch keys through the CTMU, and supervises door locks and heater relays - all on a single 5V rail that tolerates the switching noise generated by triacs and inverters. The four on-chip op amps condition NTC thermistor and current-shunt signals, reducing BOM count. The extended temperature grade accommodates enclosures near motors or heating elements where ambient temperatures routinely reach 85C to 105C.
Recommended
Industrial Power Supplies and Inverters
For digital power conversion, the DSPIC33EV256GM004-E/ML offers the deterministic 60 MHz DSP core, high-resolution motor-control PWM, and integrated analog front end needed for LLC, PFC, and inverter control loops. The 5V I/O drives gate-driver inputs on 24V industrial buses without level shifting, and the ECC Flash protects firmware integrity in electrically noisy switch-mode environments. In a solar micro-inverter or telecom rectifier, the controller samples input/output voltage and current through the on-chip op amps, closes the control loop in firmware, and manages protection state machines. The -E grade supports sealed industrial enclosures with elevated internal ambient temperatures up to 125C junction-rated operation.
Recommended
Capacitive Touch User Interfaces
The CTMU (Charge Time Measurement Unit) on the DSPIC33EV256GM004-E/ML enables capacitive touch sensing with external electrode pads, which suits appliance panels and industrial HMI boards that already use this DSC for motor or power control. The CTMU measures charge time on each touch channel with microsecond-class resolution, and the 16-bit core runs debounce and drift-compensation algorithms in firmware. Because touch sensing and heavy PWM switching coexist on the same die, layout discipline - guarding analog traces and synchronizing CTMU sampling away from PWM edges - determines sensing reliability. The 5V rail raises the sense signal amplitude, improving signal-to-noise ratio compared to 3.3V touch solutions in electrically noisy products.
Recommended
Electric Tool and E-Bike Controllers
Cordless power tools and e-bike drives demand compact, thermally robust motor controllers; the DSPIC33EV256GM004-E/ML addresses this with six MC PWM outputs, four current-sense op amps, and a -40C to +125C rating in a compact 8x8 mm QFN. The 5V core supply simplifies design with single-cell or multi-cell battery stacks feeding 5V LDOs directly, while the 60 MHz DSP core closes FOC current loops fast enough for high-pole-count BLDC motors. The 256KB ECC Flash holds sensorless startup algorithms plus Bluetooth or CAN firmware for smart tools. Layout priority: keep shunt-to-op-amp traces short and Kelvin-connected, and place the QFN over a solid ground plane for thermal relief at high PWM loads.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV256GM004-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM004-I/ML | DSPIC33EV128GM004-E/ML | DSPIC33EP256MC504-E/ML | DSPIC33EP256GP504-E/ML | DSPIC33EP64MC504-E/MV |
|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN - same land pattern |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 256 KB (ECC) | 256 KB (ECC) | 128 KB | 256 KB | 256 KB | 64 KB |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) | -40C to +125C (E) |
| Family | dsPIC33EV (5V DSC) | dsPIC33EV - same family | dsPIC33EV - same family | dsPIC33EP - different family | dsPIC33EP - different family | dsPIC33EP - different family |
Key Differentiators
- Extended +125C operation on the same silicon (vs DSPIC33EV256GM004-I/ML)
- Double the program memory for FOC plus diagnostics (vs DSPIC33EV128GM004-E/ML)
- Integrated analog reduces external BOM (vs DSPIC33EP256GP504-E/ML)
Design Notes
Estimated: at a 5V supply with, for example, 50 mA of average core+I/O current, device dissipation is roughly 0.25 W. With a typical 44-QFN theta-JA in the 30-40 C/W range on a standard 4-layer board (verify the exact figure in the DS70005144H datasheet), junction rise is approximately 8-10 C above ambient - comfortable at 125C ambient only if theta-JA is minimized. Maximize the exposed-pad copper pour (at least 2x2 cm of connected ground plane) and avoid placing the DSC adjacent to hot power components such as gate drivers or bus capacitors.
Connect the QFN exposed pad to a solid ground plane with a matrix of thermal vias (minimum 4-6 vias, filled or plated per IPC-4761 availability). Place 100 nF ceramic decoupling capacitors within 2 mm of each VDD pin, plus a 4.7-10 uF bulk capacitor near the supply entry. Route the four on-chip op amp inputs as short Kelvin traces directly to current-shunt resistors; do not share shunt return paths with power ground currents, as even a few milliohms of shared copper corrupts motor current measurements used by the FOC loop.
Three common pitfalls: (1) substituting the -I grade where the ambient exceeds +85C causes latent reliability failures even if the circuit appears functional at room temperature - always match the temperature suffix to the thermal analysis. (2) Emulating the CTMU touch channels near switching PWM edges produces false triggers; sample touch away from PWM transitions. (3) Using dsPIC33EP-family pinout assumptions on this EV-family device is unsafe - peripheral multiplexing differs between families, so verify every pin assignment against DS70005144H before PCB release.
Compliance Information
Compliance status not stated in the provided verified web data; verify on the official Microchip product page. The dsPIC33EV family is marketed for automotive applications; confirm any required AEC-Q100 qualification level directly with Microchip for your program.
