DSPIC33EP128MC202-I/SS - 16-bit 70 MIPS DSC 128KB | Microchip
MPN: DSPIC33EP128MC202-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.3 | $43.00 |
| 100 | $3.94 | $394.00 |
| 500 | $3.68 | $1,840.00 |
| 1,000 | $3.44 | $3,440.00 |
DSPIC33EP128MC202-I/SS Overview
A digital signal controller combines the fast interrupt response and deterministic behavior of a microcontroller with the multiply-accumulate (MAC) DSP engine of a digital signal processor. In the power-management hierarchy of embedded systems, the dsPIC33E family sits between general-purpose PIC24 microcontrollers and dedicated DSPs, providing a single-chip solution for control loops that need both math throughput and rich analog integration. Microchip positions this family specifically for precision motor control, where a 70 MIPS dsPIC DSC core with integrated DSP and enhanced on-chip peripherals enables high-performance closed-loop control.
Key features of the DSPIC33EP128MC202 include the 16-bit modified Harvard architecture with DSP instruction support, 128 KB of self-programmable Flash for field firmware updates, and industrial temperature operation from -40C to +85C (the /I temperature code). The 28-SSOP package suits cost- and space-sensitive control boards that still need a dedicated controller.
The dsPIC33EP core couples the CPU with high-speed peripherals targeted at power conversion and motion: advanced PWM capability for inverter and converter stages, plus on-chip analog for sensing feedback. Peripherals are supported by Microchip MPLAB X IDE, the XC16 compiler, and hardware debugging tools, so designs can be developed and reused across the dsPIC33EP family. The device is programmed in-circuit through PGECx/PGEDx pin pairs - any pair can be used, but ICSPCLK and ICSPDAT must be taken from the same pair, and all VDD/VSS pins must be connected for programming to succeed.
Typical applications include brushless DC and PMSM motor drives for industrial automation, digital power supplies and inverters, metering systems, IoT embedded nodes, and general industrial control boards that benefit from DSP-style math on a microcontroller.
Design consideration: pin multiplexing on a 28-pin device is intensive - peripherals share pins through the Peripheral Pin Select (PPS) scheme, so map the PWM, UART, and ADC channels early in schematic capture and reserve one PGECx/PGEDx pair plus MCLR for ICSP access.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with pricing referenced as of 2026-09-23.
Drop-in alternatives for DSPIC33EP128MC202-I/SS — 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 DSPIC33EP128MC202-I/SS (same form factor and footprint) — differing in Package, Operating Temperature, Core, RAM, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP128MC202-E/SS
✅ Drop-In✓ In Stock
$4.18 / Unit
View Datasheet →DSPIC33EP256MC202-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.64 / Unit
View Datasheet →DSPIC33EP64MC202-I/SS
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP32MC202-I/SS
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.68 / Unit
View Datasheet →DSPIC33CK64MC102-I/SS
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →DSPIC33EP128MC202-I/SS Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit DSC |
| Core Performance | 70 MIPS |
| Operating Frequency | 60 MHz |
| Program Memory Size | 128 KB (43K x 24) Flash |
| RAM Size | 16 KB |
| Data Bus Width | 16 bit |
| Product Type | Digital Signal Controller (DSC) |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial, /I grade) |
| Programming Interface | ICSP via PGECx/PGEDx pairs |
| RoHS Status | Compliant |
DSPIC33EP128MC202-I/SS 28-ssop Pin Configuration Guide
Pin configuration for DSPIC33EP128MC202-I/SS (28-ssop 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 DSPIC33EP128MC202-I/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128MC202-I/SS is suitable for 6 applications: Brushless DC / PMSM Motor Control, Digital Power Supplies and Inverters, Industrial Automation and Control Boards, Energy Metering and Smart Grid Nodes, IoT and Connected Embedded Devices, Battery-Powered and Low-Power Board Designs.
Brushless DC / PMSM Motor Control
The DSPIC33EP128MC202-I/SS fits BLDC and PMSM drive designs because its 70 MIPS DSP core executes field-oriented control loops with MAC instructions while the high-speed PWM module drives the inverter stage with fine edge resolution. Microchip explicitly targets this family at high-performance precision motor control. In a typical sensorless FOC drive, the controller reads phase currents and bus voltage through its on-chip ADC, computes Park/Clarke transforms in software, and updates PWM duty cycles each control cycle - deterministic single-chip execution avoids the latency of separate MCU+DSP splits. The 128 KB Flash holds FOC code plus compensation tables with room for communication stacks. The -40C to +85C industrial rating suits factory drives and pumps.
Recommended
Digital Power Supplies and Inverters
Digital switch-mode power supplies, solar micro-inverters, and PFC stages benefit from the DSPIC33EP128MC202 because control-law execution must be deterministic and math-intensive. The 70 MIPS core runs PID or predictive control loops at switching-relevant rates, while the advanced PWM peripherals provide the complementary outputs and dead-time control needed for half-bridge and full-bridge converters. Feedback via the on-chip ADC closes current and voltage loops without external sampling ICs. The 128 KB Flash accommodates control firmware plus compensation, fault handling, and housekeeping tasks on one die. Firmware-based control also enables runtime parameter tuning and adaptive modes that analog controllers cannot offer, making the part a strong fit for configurable power platforms.
Recommended
Industrial Automation and Control Boards
Embedded automation nodes - conveyors, actuators, valve controllers, and PLC expansion boards - use the DSPIC33EP128MC202-I/SS where DSP-style math meets classic industrial I/O. The 16-bit core handles sensor filtering, scaling, and control sequences, while the Peripheral Pin Select scheme lets designers map UART, SPI, PWM, and capture functions to the 28 available pins to match legacy board layouts. The industrial -40C to +85C temperature grade and mature Microchip toolchain (MPLAB X, XC16) reduce qualification effort for factory equipment with long service lives. In-circuit serial programming through PGECx/PGEDx pairs allows field firmware updates without desoldering, an important serviceability feature for deployed industrial hardware across distributed automation sites.
Recommended
Energy Metering and Smart Grid Nodes
Electricity metering requires simultaneous DSP math (RMS, power factor, harmonic analysis) with MCU housekeeping (protocol handling, display, storage) - exactly the split the dsPIC33EP architecture serves on one chip. The DSPIC33EP128MC202 computes sampling-based energy calculations with its MAC engine while managing communication and billing data in its 128 KB Flash and 16 KB RAM. On-chip ADC channels sample current and voltage sense inputs, avoiding external conversion ICs in cost-sensitive meters. Distributors list this family for metering and low-power board designs. The industrial temperature rating covers outdoor meter enclosures, and single-chip integration reduces BOM count and calibration surface compared to discrete MCU-plus-DSP meter designs.
Recommended
IoT and Connected Embedded Devices
Industrial IoT endpoints such as sensor aggregators, edge controllers, and condition-monitoring nodes use the DSPIC33EP128MC202-I/SS to preprocess signals locally before transmission. The DSP engine filters and feature-extracts on vibration or current signatures with MAC operations, then the MCU side packages results for a UART/SPI-connected radio module. The 128 KB Flash holds both signal-processing code and communication stacks, and 16 KB RAM buffers telemetry. Its 60 MHz operation with 70 MIPS throughput provides headroom for analysis loops alongside protocol tasks. Distributor listings identify the part for IoT devices and embedded automation, and ICSP programming supports secure field firmware updates across deployed IoT fleets.
Recommended
Battery-Powered and Low-Power Board Designs
Battery-operated control boards - handheld diagnostics, portable instruments, and wireless sensor units - fit the DSPIC33EP128MC202 where processing bursts alternate with idle periods. Distributor product overviews list the family for low-power board designs. The controller can run its 70 MIPS core during measurement and control bursts, then idle between samples to conserve battery energy, with the on-chip ADC and PWM handling periodic duties. The compact 28-SSOP surface-mount package minimizes board area in portable enclosures, and single-supply 16-bit operation simplifies power-tree design from battery rails. The 128 KB Flash supports rich feature sets - calibration routines, data logging, UI logic - that small 8-bit MCUs cannot store, all without external memory.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128MC202-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP128MC202-E/SS | DSPIC33EP256MC202-I/SS | DSPIC33EP64MC202-I/SS | DSPIC33EP32MC202-I/SS | DSPIC33CK64MC102-I/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | Higher CK-core performance |
| Flash Program Memory | 128 KB | 128 KB | 256 KB | 64 KB | 32 KB | 64 KB |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Firmware Compatibility | Baseline | Binary-compatible (same die) | Source-compatible, linker script change | Source-compatible if code < 64 KB | Source-compatible if code < 32 KB | Requires port (CK core) |
Key Differentiators
- Largest Flash in the same 28-SSOP footprint (vs DSPIC33EP64MC202-I/SS)
- Extended-temperature upgrade path without PCB change (vs DSPIC33EP128MC202-E/SS)
- Mature dsPIC33EP ecosystem vs newer CK core (vs DSPIC33CK64MC102-I/SS)
Design Notes
ICSP programming constraints: per Microchip documentation, the dsPIC33EP128MC202 has more than one PGECx/PGEDx pair and you may use any pair, but ICSPCLK and ICSPDAT must come from the SAME pair (e.g., PGEC2/PGED2). Additionally, all VDD and VSS pins must be connected - even one floating power pin can cause programming failure. Reserve one full pair plus MCLR on your PCB header and do not reuse these pins for loaded peripherals that fight the programmer.
Place a 100 nF ceramic decoupling capacitor at each VDD/VSS pin pair, as close to the package as possible, plus bulk capacitance per board power design. On 28-pin dsPIC33EP devices, connect ALL VDD and VSS pins (required for reliable programming and operation) and follow datasheet guidance for any VCAP/core-supply pin on the package. Route analog sense inputs to port B ADC channels away from PWM switching traces; keep the analog ground region quiet to preserve ADC accuracy in motor-control layouts.
The 28-pin package multiplexes many functions through Peripheral Pin Select (PPS); PWM outputs share pins with analog inputs on port B. During schematic capture, map high-current PWM and sensitive ADC channels first, then assign UART/SPI. Keep gate-driver traces short and, for motor-drive outputs at 60 MHz-capable edges, verify rise-time-driven EMI against CISPR-style limits in your end system. Reserve MCLR with a pull-up (about 10 kOhm typical) and an ICSP header even in production boards to enable field firmware updates.
Estimated: on the exact supply voltage range and current consumption, consult the family datasheet DS70000657J electrical characteristics tables - supply values were not included in the verified data for this page. As a general practice for dsPIC33E designs, budget decoupling and regulator headroom from the datasheet ICC figures at 60 MHz operation plus I/O loading, and verify brown-out/reset behavior of the 3.3V rail against the datasheet BOR thresholds for reliable startup in motor-drive environments.
Compliance Information
RoHS compliance per Microchip product and distributor (LCSC/DigiKey) listings. REACH, halogen-free, and conflict-minerals statuses must be confirmed via Microchip product change notifications.
