DSPIC33FJ128MC202-E/MM - 16-bit DSC 40 MIPS 128KB Flash | Microchip
MPN: DSPIC33FJ128MC202-E/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.14 | $514.00 |
| 500 | $4.61 | $2,305.00 |
| 1,000 | $4.13 | $4,130.00 |
DSPIC33FJ128MC202-E/MM Overview
A digital signal controller combines the computational throughput of a DSP with the peripherals and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits between general-purpose MCUs and dedicated DSPs, making it the standard choice for closed-loop control systems that need high-speed repetitive math, such as FOC motor control and digital power conversion.
Key features include the Motor Control PWM module, 8-channel DMA for low-CPU-overhead data movement, 5 timers, a high-speed ADC with 10-bit (1.1 Msps) and 12-bit (500 ksps) conversion modes, and serial communication peripherals for industrial connectivity. The 40 MIPS core executes two instructions per cycle from the pipeline at a 3.0 V to 3.6 V supply.
The dsPIC33F architecture shares a high degree of compatibility with the dsPIC30F and PIC24H families, allowing seamless migration and code reuse. CMOS process technology keeps active current low, and the Flash program memory is self-programmable for field firmware updates.
Typical applications include brushless DC and PMSM motor drives, digital power supplies and PFC stages, UPS systems, and industrial sensing nodes where fast control loops are required.
Design consideration: use the VCAP pin per the manufacturer datasheet recommendation and budget the 8 DMA channels carefully when multiple high-rate peripherals run concurrently.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ128MC202-E/MM — 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 DSPIC33FJ128MC202-E/MM (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ128MC202-I/MM
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →DSPIC33FJ64MC202-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC202-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64MC202-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.9 / Unit
View Datasheet →DSPIC33FJ128MC202A-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ128MC202-E/MM Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33F |
| Maximum Clock / Performance | 40 MIPS |
| Program Memory Size | 128 KB (128K x 8) Flash |
| Data RAM (SRAM) | 16 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 28-QFN-S (6x6 mm) |
| Mounting Type | Surface Mount |
| DMA Channels | 8 |
| Timers | 5 |
| Motor Control PWM | Yes |
| ADC Resolution / Speed | 10-bit at 1.1 Msps / 12-bit at 500 ksps |
| Family Compatibility | Pin compatible with PIC24H family |
| Process Technology | CMOS |
DSPIC33FJ128MC202-E/MM 28-qfn-s (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ128MC202-E/MM (28-qfn-s (6x6 mm) 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 DSPIC33FJ128MC202-E/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ128MC202-E/MM is suitable for 6 applications: BLDC / PMSM Motor Control, Digital Power Supplies and PFC, Uninterruptible Power Supplies (UPS), Industrial Sensing and Control Nodes, Automotive and e-Mobility Auxiliary Systems, Embedded Audio and Signal Processing.
BLDC / PMSM Motor Control
The DSPIC33FJ128MC202-E/MM is a natural fit for sensorless and sensored brushless DC and PMSM drives because its Motor Control PWM module generates complementary or independent PWM pairs while the 40 MIPS DSP core executes field-oriented control (FOC) math. The ADC operating at 12-bit/500 ksps samples phase currents with the deterministic timing needed for inner current loops, and the 8 DMA channels move results without CPU overhead. The extended -40C to +125C E-grade suits motor-drive enclosures that run hot. Firmware benefits from 128 KB Flash, leaving room for diagnostics and comm tables.
Recommended
Digital Power Supplies and PFC
In digitally controlled AC-DC and DC-DC converters, this DSC runs voltage- and current-mode compensators with deterministic loop timing enabled by 40 MIPS throughput and a high-speed ADC (10-bit at 1.1 Msps or 12-bit at 500 ksps). Motor Control PWM outputs drive power stages with adjustable dead-time, while DMA streams ADC samples for fast overcurrent protection paths that bypass the CPU. The 128 KB Flash accommodates soft-start, fault management, and communication stacks (PMBus-like telemetry) in one device, and the 3.0 V to 3.6 V supply integrates cleanly into auxiliary bias rails.
Recommended
Uninterruptible Power Supplies (UPS)
UPS systems require simultaneous, tightly synchronized control of an inverter, a battery charger, and a transfer switch - a workload the DSPIC33FJ128MC202-E/MM handles with its 40 MIPS core, five timers, and Motor Control PWM. The high-speed ADC samples battery voltage, bus voltage, and output current, while DMA transfers keep control-loop jitter low. 128 KB Flash holds anti-islanding, THD compensation, and host communication firmware, and the extended -40C to +125C rating supports cabinet-mounted electronics near thermal limits. Serial peripherals provide interface to front-panel controllers and network monitoring cards.
Recommended
Industrial Sensing and Control Nodes
For industrial nodes that combine sensor acquisition with local closed-loop action, the DSPIC33FJ128MC202-E/MM pairs its advanced analog front end (up to 1.1 Msps 10-bit sampling) with 40 MIPS of headroom for filtering and decision logic. The pin-compatible relationship with the PIC24H family gives designers a migration path if DSP instructions prove unnecessary, and 128 KB Flash supports protocol stacks and field OTA-style firmware updates. The extended temperature grade and CMOS process keep the node reliable across factory floor temperature swings, while DMA offloads continuous sensor streaming from the CPU core.
Recommended
Automotive and e-Mobility Auxiliary Systems
Although the standard dsPIC33FJ128MC202-E/MM is not AEC-Q100 qualified, its -40C to +125C E-grade and robust Motor Control PWM make it suitable for non-safety auxiliary automotive and e-mobility subsystems such as pump controllers, fan drivers, and actuator Positioning loops. The 40 MIPS core implements sensorless commutation and current-loop control, the 12-bit/500 ksps ADC digitizes position and current feedback, and DMA maintains deterministic sampling under varying loads. The 28-QFN-S 6x6 mm package minimizes board area in compact electronic control modules, and 128 KB Flash leaves firmware expansion margin.
Recommended
Embedded Audio and Signal Processing
The dsPIC33F DSP engine (multiply-accumulate, barrel shifter, dual operand fetch) lets the DSPIC33FJ128MC202-E/MM implement filters, envelope detectors, and simple audio effects at sample rates consistent with its 40 MIPS budget. The ADC's 10-bit/1.1 Msps mode captures fast analog waveforms, DMA channels stream buffers without CPU stalls, and serial peripherals interface to external audio codecs. 128 KB Flash holds coefficient tables and multiple preset profiles, while the extended -40C to +125C range suits industrial-audio and signaling equipment. Designers should verify CODEC timing compatibility in the peripheral pin-select mapping early.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ128MC202-E/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ128MC202-I/MM | DSPIC33FJ64MC202-E/MM | DSPIC33EP64MC202-E/MM |
|---|---|---|---|---|
| Package | 28-QFN-S (6x6) | 28-QFN-S (6x6) - same | 28-QFN-S (6x6) - same | 28-QFN (6x6) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Performance | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33F, 40 MIPS | 16-bit dsPIC33E core |
| Flash Program Memory | 128 KB | 128 KB | 64 KB | 64 KB |
| Operating Temperature | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| Motor Control PWM | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended temperature range for hot environments (vs DSPIC33FJ128MC202-I/MM)
- Double the program memory in the same footprint (vs DSPIC33FJ64MC202-E/MM)
- More Flash than the newer-core alternative (vs DSPIC33EP64MC202-E/MM)
Design Notes
The dsPIC33FJ128MC202 requires the VCAP/VDDCORE pin to be stabilized with the recommended capacitor value stated in the Microchip datasheet (per the device power connections section). Decouple all VDD pins with 0.1 uF ceramic capacitors placed within 2 mm of the pins, plus bulk capacitance at the board level. Supply tolerance is 3.0 V to 3.6 V - exceeding this range violates the 40 MIPS operating specification and may corrupt Flash writes. Verify brown-out and watchdog configuration bits so the controller restarts cleanly when the supply collapses.
The 28-QFN-S (6x6 mm) has a central exposed thermal pad that must be connected to VSS with a via array (typically 3x3 or 4x4 vias) to the ground plane; this pad is not optional - it provides the primary ground connection and heat dissipation path for the 40 MIPS core. Follow the manufacturer datasheet land-pattern recommendations for solder paste aperture design to avoid voiding under the pad. Keep the crystal/oscillator traces short and guard them from PWM switching nodes to preserve clock integrity.
Verify the peripheral pin select (PPS) mapping in software before committing PCB routing: several digital functions share pins on the 28-pin package, and a mis-assigned PPS register can route PWM outputs to unintended pins during development. When migrating firmware from dsPIC30F or PIC24H relatives, re-check configuration bits and oscillator PLL settings, since the dsPIC33F family uses different startup values. Also confirm the E-grade temperature rating is actually required - the -I variant is cheaper for environments below 85C.
Compliance Information
Compliance status not stated in the provided verified web data; confirm RoHS/REACH status on the official Microchip product page. No AEC-Q100 qualification claim exists for this standard part; the extended -E temperature grade is not automotive qualification.
