DSPIC33EP256MC504T-I/TL - 70 MIPS 16-bit DSC 256KB Flash | Microchip
MPN: DSPIC33EP256MC504T-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.12 | $5.12 |
| 10 | $4.61 | $46.10 |
| 100 | $4.1 | $410.00 |
| 500 | $3.69 | $1,845.00 |
| 1,000 | $3.32 | $3,320.00 |
DSPIC33EP256MC504T-I/TL Overview
A digital signal controller combines the compute throughput of a DSP core with the peripheral integration and ease of use of a microcontroller, sitting in the product hierarchy between general-purpose MCUs and dedicated DSPs within the broader embedded processor family. The dsPIC33EP family from Microchip Technology targets real-time control loops where both math throughput and rich peripherals matter.
Key features of this part include the dsPIC33E 16-bit RISC core with DSP engine (multiply-accumulate, barrel shifter, modulo addressing), motor control PWM (MCPWM), quadrature encoder interface (QEI) inputs, integrated operational amplifiers and comparators, a CAN bus interface, and connectivity including I2C, SPI, UART/USART, and IrDA/LIN support. A peripheral trigger generator (PTG) enables autonomous peripheral coordination offloading the CPU.
Technically, the DSP engine executes single-cycle MAC operations, enabling FOC (field-oriented control) motor algorithms and digital filters at 70 MIPS. The device runs at 60 MHz operation with the flash-based program store, and the industrial temperature range (I-suffix) covers -40C to +85C. The T-suffix indicates Tape and Reel packaging for automated assembly.
Typical applications include brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) control, digital power conversion, sensorless drives using QEI feedback, automotive auxiliary systems, and industrial automation nodes requiring CAN connectivity.
Design consideration: keep VDD/AVDD decoupling (0.1uF per pin plus bulk capacitance) close to the exposed pad, and solder the exposed thermal pad to the ground plane for reliable grounding and thermal performance.
This page synthesizes distributor availability, drop-in alternatives, and practical design notes beyond the raw manufacturer datasheet.
Drop-in alternatives for DSPIC33EP256MC504T-I/TL — 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 DSPIC33EP256MC504T-I/TL (same form factor and footprint) — differing in Package, Operating Temperature, Packaging, Core Architecture, RAM.
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No drop-in alternatives available for this product.
Request AlternativesDSPIC33EP256MC504T-I/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33E 16-bit RISC with DSP engine |
| Core Speed | 70 MIPS |
| Operating Frequency | 60 MHz |
| Flash Program Memory | 256KB (85.5K x 24) |
| RAM | 32KB |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +85C (industrial, I-suffix) |
| Package | 44-VTLA (6x6 mm) with exposed pad |
| Mounting Type | Surface Mount |
| PWM | MCPWM (Motor Control PWM) |
| Encoder Interface | QEI (Quadrature Encoder Interface) |
| Analog Integration | OpAmps, Comparators |
| Connectivity | CANbus, I2C, SPI, UART/USART, IrDA, LINbus |
| Auxiliary Peripherals | PTG (Peripheral Trigger Generator) |
| Packaging | Tape and Reel (T-suffix) |
| Series | dsPIC33EP / dsPIC 33EP |
DSPIC33EP256MC504T-I/TL 44-vtla (6x6 mm) with exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP256MC504T-I/TL (44-vtla (6x6 mm) with 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 DSPIC33EP256MC504T-I/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP256MC504T-I/TL is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Conversion, Industrial Automation and CAN Networking Nodes, Sensorless Drives with Encoder and QEI Feedback, Automotive Auxiliary Systems, Embedded Signal Processing and Data Acquisition.
BLDC / PMSM Motor Control
The DSPIC33EP256MC504T-I/TL is a natural fit for brushless DC and permanent magnet synchronous motor drives. Its motor control PWM (MCPWM) peripheral delivers complementary outputs with hardware dead-time insertion, while the quadrature encoder interface (QEI) reads position feedback without CPU overhead. At 70 MIPS with single-cycle DSP multiply-accumulate, the core executes field-oriented control (FOC) loops well above typical electrical frequencies, and on-chip op-amps condition shunt current-sense signals externally of extra ICs. Typical topology: the DSC drives a three-phase inverter gate-driver stage from its PWM outputs, samples phase currents through integrated op-amps, and closes the FOC current loop at PWM frequency. The quantified benefit is deterministic loop timing with margin - the DSP engine completes the control mathematics in a fraction of the PWM period, leaving headroom for supervisory code and CAN communication.
Recommended
Digital Power Conversion
In digitally controlled AC-DC and DC-DC converters, the DSPIC33EP256MC504T-I/TL provides the fast control-loop execution and precision analog integration the role demands. The 70 MIPS DSP core runs compensator algorithms (PID or 2p2z) at switching frequencies in the hundreds of kilohertz, while on-chip comparators support cycle-by-cycle current limiting and the ADC captures voltage and current feedback synchronously with the PWM. The MCPWM peripheral's dead-time and fault inputs protect the power stage. Placed between the feedback divider network and the gate-driver inputs, the DSC replaces analog compensation networks, enabling soft-start profiles, adaptive control, and telemetry over its UART or CAN interfaces. The measurable benefit is loop parameters adjustable in firmware - retuning a converter no longer requires a PCB respin, and the 256KB Flash accommodates extensive state machines plus logging.
Recommended
Industrial Automation and CAN Networking Nodes
The DSPIC33EP256MC504T-I/TL integrates a CANbus interface alongside I2C, SPI, and UART/USART, making it an efficient industrial automation node controller. In factory automation, the DSC typically serves as an intelligent sensor or actuator controller: it reads quadrature or hall sensors via QEI, executes local closed-loop control at 70 MIPS, and exchanges commands and diagnostics over CAN with the plant network through an external transceiver such as the MCP2551. The peripheral trigger generator (PTG) sequences ADC sampling and peripheral actions autonomously, keeping CPU load low for protocol handling. The industrial -40C to +85C temperature rating matches cabinet-mounted electronics, and the 6x6 mm VTLA footprint conserves control-board area. The practical benefit is a single-chip node that combines real-time control, DSP filtering of noisy sensor data, and robust fieldbus connectivity in one 44-pin device.
Recommended
Sensorless Drives with Encoder and QEI Feedback
Motion systems using quadrature encoders benefit directly from the hardware QEI peripheral of the DSPIC33EP256MC504T-I/TL, which decodes A/B channels and counts index pulses in silicon - no software edge-timing overhead. Combined with the 70 MIPS DSP engine for observer-based position and velocity estimation, the DSC supports both sensored and sensorless (back-EMF or sliding-mode observer) control schemes in the same 256KB firmware image. On-chip op-amps amplify low-level phase-current signals before the ADC, reducing bill-of-materials cost versus external amplifiers. In a typical servo drive, encoder pulses feed QEI, current loops close in the MCPWM interrupt at PWM rate, and the position loop runs in the main loop - a hierarchical control structure the dsPIC33EP MC-series was architected for. The quantified advantage: hardware quadrature decoding handles multi-million-count-per-second encoders without losing counts.
Recommended
Automotive Auxiliary Systems
For automotive auxiliary applications - auxiliary pumps, throttle actuators, HVAC blowers, and lighting controllers - the pin-compatible automotive-grade sibling DSPIC33EP256MC504T-E/TL extends this family into vehicle environments, while the industrial I-suffix part serves off-road and auxiliary equipment. The integrated CANbus interface connects the DSC to vehicle networks via a transceiver, the MCPWM peripheral drives motor stages with fault protection, and the QEI and op-amp peripherals support position and current feedback. Designers migrating a production industrial design to an automotive variant need no PCB change: the E-variant shares the identical 44-VTLA footprint and pinout. A key consideration is verifying the speed specification of the automotive part (listed at 60 MIPS by distributor Microchip USA) against firmware worst-case timing, since the industrial part runs at 70 MIPS - a 14% throughput difference that matters in fast control loops.
Recommended
Embedded Signal Processing and Data Acquisition
The DSP engine of the DSPIC33EP256MC504T-I/TL - single-cycle 16x16 multiply-accumulate, dual operand fetch, and modulo/bit-reversed addressing - makes it an efficient embedded signal-processing controller for applications such as vibration monitoring, power-quality meters, and smart sensors. The ADC, driven by the PTG or timers for deterministic sampling, streams data through FIR and IIR filters implemented at 70 MIPS, and the 32KB RAM buffers analysis windows. Results can be exported over UART, SPI, I2C, or CAN. Compared with a DSP-plus-MCU two-chip solution, this single 3.3V, 6x6 mm DSC reduces board area, BOM cost, and inter-chip latency while keeping software in a single toolchain (MPLAB X). The concrete benefit: filter kernels execute in hardware-assisted MAC loops measured in microseconds, sufficient for kHz-band spectral analysis in continuously monitoring instruments.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP256MC504T-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP256MC504-I/TL | DSPIC33EP256MC504T-E/TL | DSPIC33EP128MC504T-I/TL | DSPIC33EP64MC504T-I/TL |
|---|---|---|---|---|---|
| Package | 44-VTLA (6x6 mm) exposed pad | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same | 44-VTLA (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 70 MIPS | 70 MIPS | 60 MIPS | 70 MIPS | 70 MIPS |
| Flash Program Memory | 256KB (85.5K x 24) | 256KB | 256KB | 128KB | 64KB |
| RAM | 32KB | 16KB | 16KB | 16KB | 16KB |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Automotive/extended (E) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Packaging Format | Tape and Reel | Tray/Tube | Tape and Reel | Tape and Reel | Tape and Reel |
| Key Peripherals | MCPWM, QEI, OpAmps, Comparators, CAN, PTG | MCPWM, QEI, OpAmps, Comparators, CAN, PTG | MCPWM, QEI, OpAmps, Comparators, CAN, PTG | MCPWM, QEI, OpAmps, Comparators, CAN, PTG | MCPWM, QEI, OpAmps, Comparators, CAN, PTG |
Key Differentiators
- Highest RAM in the 44-VTLA MC504 family (vs DSPIC33EP128MC504T-I/TL)
- Full 70 MIPS throughput (vs DSPIC33EP256MC504T-E/TL)
- Maximum Flash capacity in the family (vs DSPIC33EP64MC504T-I/TL)
- Tape and Reel production packaging (vs DSPIC33EP256MC504-I/TL)
Design Notes
The 44-VTLA (6x6) package includes an exposed pad that must be soldered to the PCB ground plane - it is a primary ground return, not merely thermal relief. Define a solder-mask-opened landing pattern under the part with a via array (typically 4-9 vias) to the ground plane for reliable solder wetting. All VDD and AVDD pins need 0.1uF ceramic decoupling placed within 2 mm of the pin, plus bulk 4.7-10uF per Microchip power-supply design guidance. Follow the Microchip dsPIC33EP layout application notes for the VDDCORE capacitor, which is critical and must not be omitted.
Do not interchange the I-suffix (industrial, -40C to +85C) and E-suffix (automotive/extended) parts without checking core speed: distributor listings report 70 MIPS for the I part and 60 MIPS for the E part. Firmware tuned for 70 MIPS timing (PWM dead-time, ADC sampling, control-loop period) will behave differently at 60 MIPS if clock configuration registers are unchanged. Also confirm RAM sizing when substituting memory-reduced variants such as DSPIC33EP128MC504T-I/TL, since 16KB RAM versus 32KB RAM can break heap-heavy or large-buffer firmware even when Flash capacity suffices.
Keep the MCPWM outputs routed with adequate spacing from encoder (QEI) inputs; motor-drive dv/dt on PWM lines can capacitively couple into encoder signals and cause lost counts. Use a solid ground plane between layers, series-terminate PWM lines at the DSC if trace lengths exceed a few centimeters, and route the CAN pair as controlled-differential 120-ohm impedance with the MCP2551 transceiver placed close to the CANH/CANL pins. The on-chip op-amps amplify small current-shunt signals, so keep shunt-to-opamp traces short, Kelvin-connected, and away from PWM switching loops to preserve accuracy.
The DSPIC33EP256MC504T-I/TL operates from a single 3.3V rail with an internal regulator for the core. Estimated current draw is modest (tens of mA active at 70 MIPS, microamp-level in sleep), so power budgeting is rarely the constraint - rail integrity is. Estimated: with a typical 40 mA active draw at 3.3 V, dissipation is about 0.13 W, well within the 6x6 VTLA capability without heatsinking. Focus design effort on decoupling and the exposed-pad ground connection rather than thermal management.
Compliance Information
Verified web data does not state RoHS/REACH compliance for this specific MPN. Microchip standard production parts are typically RoHS-compliant; confirm on the official Microchip product page. The E-suffix variant is described by distributors as automotive-grade, suggesting AEC-Q100 family qualification applies to E parts rather than this I-suffix part.
