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Microchip Technology DSPIC33EP256MC504-I/ML — Microcontrollers & Processors (MCU / MPU / DSP)

DSPIC33EP256MC504-I/ML dsPIC 33EP MCU, 70 MIPs, 256KB Flash

MPNDSPIC33EP256MC504-I/ML
End of Life

Microchip dsPIC™ 33EP series, DSPIC33EP256MC504-I/ML, 16-bit Digital Signal Controller, 70 MIPs, 256KB Flash, 16K x 16 RAM, CAN, I²C, SPI, UART, Motor Control PWM, 35 I/O, 44-QFN, -40 to 85°C.

$5.1Ref. price · indicative, final on quote
Microchip Technology DSPIC33EP256MC504-I/ML datasheet (PDF)
Packaging44-VQFN Exposed Pad
RoHSROHS3 Compliant
SeriesdsPIC™ 33EP
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

DSPIC33EP256MC504-I/ML specifications
ParameterValue
SeriesdsPIC™ 33EP
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))3V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed70 MIPs
PackageTube
RAM size16K x 16
Core size16-Bit
PeripheralsBrown-out Detect/Reset, DMA, Motor Control PWM, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, QEI, SPI, UART/USART
Number of i (O)35
Core processordsPIC
Case44-VQFN Exposed Pad
Data convertersA/D 9x10b/12b
Program memory size256KB (85.5K x 24)

Product details

70 MIPs core — what it buys for the control loop

That instruction throughput is the headline number for motor-control and power-conversion loops: at 70 MIPs a PI current loop with sensor feedback can close in under 2 µs, leaving headroom for commutation sequencing and fault handling. The 44-QFN package (8x8 mm exposed pad) keeps the thermal path short for the on-chip PWM drivers.

Motor-control peripheral set — PWM, QEI, CAN

This part carries a dedicated Motor Control PWM module plus a Quadrature Encoder Interface (QEI) for position feedback from an incremental encoder. The CANbus controller (listed under connectivity) handles multi-drive coordination or fieldbus gateways without an external transceiver IC. The 9-channel A/D converter can be configured as 10-bit or 12-bit resolution, matching the feedback resolution to the loop speed requirement.

Operating supply is 3.0 V to 3.6 V, a single 3.3 V rail with a clean LDO.

Microchip lists the DSPIC33EP256MC504-I/ML as Active.

Frequently asked questions

Can DSPIC33EP256MC504 be used for motor control applications?

Yes. It includes a dedicated Motor Control PWM module, a Quadrature Encoder Interface (QEI), and CANbus connectivity — the three peripherals that cover the majority of sensor-based field-oriented control and trapezoidal commutation designs.

What is the closest functional alternative to DSPIC33EP256MC504?

The PIC24FJ256GA106-I/MR is a 16-bit PIC24 with 256 KB Flash and similar peripheral set, but it runs at 32 MHz (no DSP engine) and lacks the dedicated Motor Control PWM and QEI. The dsPIC33EP is the correct choice when the application needs the 70 MIPs throughput and motor-control hardware.