DSPIC33EP128MC204-E/ML - 60 MIPS 16-bit DSC 128KB Flash | Microchip
MPN: DSPIC33EP128MC204-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.95 | $6.95 |
| 10 | $6.25 | $62.50 |
| 100 | $5.55 | $555.00 |
| 500 | $5.05 | $2,525.00 |
| 1,000 | $4.6 | $4,600.00 |
DSPIC33EP128MC204-E/ML Overview
A digital signal controller combines the computational architecture of a microcontroller with the DSP capability of a digital signal processor. In the embedded hierarchy, the dsPIC33EP sits between general-purpose MCUs and dedicated DSPs: it executes one instruction per cycle with a modified Harvard architecture, while integrating hardware DSP multiply-accumulate (MAC) instructions, division support, and modulo/barrel-shifter addressing. This makes the dsPIC33 family a natural fit for control-loop-intensive power management and motion systems.
Key features of this device include the dsPIC33E core running at up to 60 MIPS (per DigiKey listing; the wider dsPIC33E family is specified to 70 MIPS), on-chip Flash and SRAM, high-speed PWM peripherals, integrated op amps and advanced analog, and connectivity interfaces including I2C, SPI, UART/USART, IrDA, LINbus, and QEI (quadrature encoder interface). The QEI block and PWM complement make it purpose-built for brushless DC and PMSM motor control.
Architecturally, the dsPIC33EP uses a 16-bit datapath with 24-bit instruction words, dual working registers, and hardware support for DSP math, enabling deterministic single-cycle multiply-accumulate execution. The device is programmed and debugged via ICSP using any paired PGECx/PGEDx pin pair, and is supported by Microchip MPLAB X IDE and MPLAB XC16 compiler toolchain.
Typical applications include precision motor control (BLDC, PMSM, stepper), digital power conversion (switching supplies, PFC, inverters), and industrial automation nodes requiring deterministic control loops with encoder feedback. The QEI inputs and high-resolution PWM align directly with these workloads.
Design consideration: use any PGECx/PGEDx pair for ICSP, but keep clock and data on the same numbered pair, and connect all VDD and VSS pins as required by the datasheet.
This page synthesizes distributor listings, family datasheet data, drop-in alternatives, and practical design notes in one place - information typically spread across multiple sources.
Drop-in alternatives for DSPIC33EP128MC204-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 DSPIC33EP128MC204-E/ML (same form factor and footprint) — differing in Operating Temperature, Package, Core, CPU Speed, Core Performance.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MC204-I/ML
✅ Drop-In✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33EP128MC504-E/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EP64MC204-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32MC204-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP128MC204-E/ML Maximum Ratings & Electrical Characteristics
| Core | dsPIC33E (16-bit DSC core) |
| Core Size | 16-bit |
| Speed | 60 MIPs |
| Program Memory Size | 128KB (43K x 24) FLASH |
| RAM Size | 16KB |
| Connectivity | I2C, IrDA, LINbus, QEI, SPI, UART/USART |
| Package | 44-QFN (8x8) exposed pad |
| Mounting Type | Surface Mount |
| Product Family | dsPIC 33EP (Digital Signal Controllers) |
| Specialized Peripherals | High-speed PWM, Op Amps, Advanced Analog |
| Programming/Debug Interface | ICSP via PGECx/PGEDx pin pairs |
| Operating Temperature | -40C to +125C (E grade) |
| RoHS Status | Compliant |
| Family Max Speed Rating | 70 MIPS (dsPIC33E family core per Microchip) |
DSPIC33EP128MC204-E/ML 44-qfn (8x8) exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP128MC204-E/ML (44-qfn (8x8) 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 DSPIC33EP128MC204-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MC204-E/ML is suitable for 6 applications: Precision Motor Control (BLDC/PMSM), Digital Power Conversion, Industrial Automation Nodes, Embedded Sensing and Data Acquisition, Lighting and Power Supply Control, Robotics and Motion Subsystems.
Precision Motor Control (BLDC/PMSM)
The DSPIC33EP128MC204-E/ML is purpose-built for precision motor control: Microchip explicitly positions the dsPIC33E MC family for 'high-performance, precision motor control systems'. The combination of 60 MIPS core throughput for field-oriented control (FOC) loops, high-speed PWM peripherals for inverter gating, on-chip op amps for current-sense amplification, and the QEI (quadrature encoder interface) for position feedback covers the complete servo/BLDC signal chain in one chip. The 128KB Flash and 16KB RAM hold FOC mathematics, commutation tables, and communication stacks simultaneously. In a typical design the DSC reads phase currents via its ADC and op amps, executes current/speed/position control loops in interrupt context, and outputs complementary PWM pairs with dead-time insertion - eliminating external analog front-end components and reducing board area and BOM cost.
Recommended
Digital Power Conversion
Switching power supplies, PFC stages, and inverters require deterministic, high-frequency control loops that the DSPIC33EP128MC204-E/ML delivers with its 60 MIPS core and high-speed PWM module. The MC-family's advanced analog resources - including on-chip op amps for current shaping and comparators for cycle-by-cycle overcurrent protection - allow the controller to close voltage and current loops directly. At 128KB Flash there is room for soft-start, multi-mode control (CCM/DCM), fault logging, and PMBus-style digital communication over I2C or UART. The -40C to +125C E-grade rating suits power stages mounted near heat-generating components where ambient board temperatures rise well above consumer limits. Designers should budget loop execution time carefully, keeping the control ISR well under the switching period to preserve phase margin in high-bandwidth converters.
Recommended
Industrial Automation Nodes
Factory sensors, actuators, and subsystem controllers benefit from the DSPIC33EP128MC204-E/ML's connectivity breadth: I2C, SPI, UART/USART, LINbus, and IrDA cover legacy and modern industrial buses, while QEI inputs directly interface rotary encoders on conveyors and positioning stages. The 60 MIPS core provides real-time response to limit switches, timeouts, and safety interlocks without an RTOS, and the 44-QFN 8x8 mm footprint fits compact distributed I/O boards. With 128KB Flash, one firmware image can implement protocol handling, local control logic, and diagnostic logging. All VDD/VSS pins must be connected and decoupled per the datasheet in electrically noisy panel environments, and the ICSP header (PGECx/PGEDx pair) should be exposed for field firmware updates on deployed industrial equipment.
Recommended
Embedded Sensing and Data Acquisition
The advanced analog integration of the dsPIC33EP128MC204 - op amps plus high-resolution ADC inputs - lets the part amplify, filter, and digitize sensor signals such as pressure, temperature bridges, and current shunts without a separate analog front end. At 60 MIPS, DSP MAC instructions perform real-time FIR/IIR filtering, RMS computation, and FFT-based spectral analysis on-sensor, transmitting conditioned results over SPI, I2C, or UART. The 16KB RAM buffers multi-channel sample streams, and 128KB Flash stores calibration coefficients and compensation tables. The extended -40C to +125C temperature range supports sensing in engine bays, industrial enclosures, and outdoor equipment. For highest accuracy, designers should apply the datasheet's recommended ADC acquisition-time settings and board-level analog grounding practices to minimize digital noise coupling.
Recommended
Lighting and Power Supply Control
Digitally controlled LED drivers, HID ballasts, and lighting power supplies map well onto the DSPIC33EP128MC204-E/ML: the high-speed PWM generates dimming and switching waveforms, the on-chip comparators provide fast overcurrent fault response, and UART/I2C links support DALI-style or building-automation commands. The 60 MIPS core executes constant-current regulation loops and multi-channel dimming phase management concurrently. Its 128KB Flash accommodates multiple lighting profiles, soft-start sequences, and fault-recovery state machines without external memory. The E-grade -40C to +125C rating matches the elevated internal temperatures of enclosed LED drivers. Care must be taken with PWM frequency selection - switching losses in the external MOSFET stage rise with frequency, so 60 MIPS headroom should be balanced against driver-stage efficiency targets in the thermal budget.
Recommended
Robotics and Motion Subsystems
Robot joints, gantries, and gimbal mechanisms demand tight integration of encoder feedback, motor drive, and communication - precisely the mix on the DSPIC33EP128MC204-E/ML. QEI inputs decode quadrature encoder signals for closed-loop position control, high-speed PWM drives H-bridges or three-phase inverters with dead-time control, and SPI/I2C/UART links tie the joint controller into a higher-level robot bus. The 60 MIPS core runs cascaded position/velocity/current loops plus trajectory interpolation, while the on-chip op amps condition current-sense signals for torque estimation. 128KB Flash holds kinematic profiles and safety routines; 16KB RAM keeps multi-axis state data resident. Because the part accepts any PGECx/PGEDx pair for ICSP, firmware-field-upgrade connectors can be routed flexibly on densely packed robot arm PCBs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC204-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC204-I/ML | DSPIC33EP128MC504-E/ML | DSPIC33EP64MC204-E/ML | DSPIC33EP32MC204-E/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 128KB (43K x 24) | 128KB (43K x 24) | 256KB | 64KB | 32KB |
| Core Speed | 60 MIPs | 60 MIPs | 60 MIPs | 60 MIPs | 60 MIPs |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Connectivity | I2C, IrDA, LINbus, QEI, SPI, UART/USART | Same peripheral set | Same peripheral set | Same peripheral set | Same peripheral set |
| Best For | General motor control, digital power, extended temp | Cost saving below +85C environments | Large firmware, bootloader + app | Cost-reduced mid-size firmware | Lowest-cost small firmware |
Key Differentiators
- Extended -40C to +125C operation (vs DSPIC33EP128MC204-I/ML)
- Balanced 128KB Flash for motor control firmware (vs DSPIC33EP64MC204-E/ML)
- Lower cost than the 256KB variant (vs DSPIC33EP128MC504-E/ML)
Design Notes
Connect all VDD and VSS pins as required by the family datasheet - Microchip documentation for this part explicitly states 'All VSS and VDD pins' must be connected. On the 44-QFN 8x8 package, solder the exposed pad to a solid grounded copper pour: this provides the main heat path for the E-grade (-40C to +125C) operating range and improves supply-integrity by lowering ground inductance. Place a 0.1 uF ceramic decoupling capacitor at each VDD/VSS pin pair, plus one bulk 4.7-10 uF capacitor per device.
The dsPIC33EP128MC204 has multiple ICSP programming pairs (PGECx/PGEDx). Per northernsoftware.com support documentation, any pair may be used, but clock and data must be from the SAME numbered pair - e.g., ICSPCLK on PGEC2 requires ICSPDAT on PGED2. Mixing pairs from different numbers is a very common bring-up failure that prevents programming while appearing electrically functional. Reserve one full pair on your PCB header and keep traces short to avoid programming signal integrity issues on production fixtures.
Estimated: the 44-QFN 8x8 exposed-pad package comfortably handles the expected sub-watt dissipation of a DSC running at 60 MIPS (~0.2 W at 3.3V and tens of mA), but this assumes the thermal pad is properly soldered to at least a 2x2 array of thermal vias into a ground plane. Designs running near +125C ambient should derate: recompute junction temperature using the exact theta-JA from datasheet DS70000657J thermal tables and your measured core current, not the estimate above.
For motor control and digital power use, route PWM outputs away from QEI encoder inputs and analog sense lines; complementary PWM edges with fast slew rates couple readily into high-impedance encoder channels causing false quadrature counts. Use the on-chip op amps with short, guarded traces to the current shunt, and follow the datasheet ADC acquisition-time recommendations. Enable peripheral pin select (PPS) remapping early in layout planning to place digital functions on physically convenient pins.
Compliance Information
RoHS compliance per distributor listing conventions for this Microchip part. Formal REACH, halogen-free, and conflict-minerals declarations should be obtained from Microchip's official environmental compliance documentation.
