DSPIC33FJ12MC202T-E/ML - 16-bit Motor Control DSC, 12KB Flash | Microchip
MPN: DSPIC33FJ12MC202T-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.85 | $4.85 |
| 10 | $4.36 | $43.60 |
| 100 | $3.88 | $388.00 |
| 500 | $3.49 | $1,745.00 |
| 1,000 | $3.1 | $3,100.00 |
| 1,600 | $2.85 | $4,560.00 |
DSPIC33FJ12MC202T-E/ML Overview
A Digital Signal Controller (DSC) is a hybrid device that merges a microcontroller's deterministic control peripherals with a digital signal processor's arithmetic throughput. Within the broader product hierarchy, the dsPIC33F sits between general-purpose PIC24 MCUs and high-end dsPIC33E DSCs, targeting real-time control loops that demand both fixed-point DSP and deterministic interrupt response - the same hierarchy as DSP > microcontroller > semiconductor. This positions the part above a standard PIC16/PIC18 MCU but below application processors, ideal for sensored and sensorless motor control.
Key features include a 6-channel PWM module with complementary outputs and dead-time control, a 10-bit ADC with up to 9 channels and 1.1 Msps conversion rate, three 16-bit timers, and Peripheral Pin Select (PPS) for flexible signal routing. The Motor Control PWM supports edge-aligned, center-aligned, and variable-phase modes, allowing direct driving of three-phase inverter bridges. The nanoWatt power management unit offers Idle, Sleep, and DOZE modes that reduce quiescent current during standby, extending battery life in portable drives.
The dsPIC33FJ12MC202 architecture separates program and data memory buses (Harvard) with 24-bit instruction words, allowing simultaneous fetch of opcode and data. The interrupt controller supports up to five priority levels and 65 vectored interrupts, while the JTAG and ICSP interfaces enable in-circuit debug and device programming without external hardware. The QFN-28 package exposes a thermal pad to minimize junction-to-PCB thermal resistance, supporting continuous switching currents typical of 24V brushless DC motor drives.
Typical applications include sensorless BLDC/PMSM motor drives, low-voltage fan and pump controllers, small appliance inverters, e-bike controllers, and automotive auxiliary motor drives. The 12KB Flash is sufficient for field-oriented control algorithms with sinusoidal commutation tables, while 1KB SRAM accommodates state observers without external memory expansion. Designers should note that the -E temperature grade qualifies the part for automotive under-hood environments.
Drop-in alternatives for DSPIC33FJ12MC202T-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 DSPIC33FJ12MC202T-E/ML (same form factor and footprint) — differing in Package, ADC, Communication, Core Architecture, PWM Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ12MC202-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12MC201T-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12MC202-I/ML
✅ Drop-In✓ In Stock
$4.66 / Unit
View Datasheet →DSPIC33FJ12MC202-I/SS
✅ Drop-In✓ In Stock
$2.62 / Unit
View Datasheet →DSPIC33FJ12GP202-I/ML
✅ Drop-In✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ12MC202T-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F (16-bit DSC, modified Harvard) |
| Program Memory (Flash) | 12 KB |
| Data Memory (SRAM) | 1024 bytes |
| EEPROM | 1024 bytes |
| Maximum CPU Speed | 40 MIPS at 3.3V |
| Operating Voltage Range | 3.0 V to 3.6 V |
| Operating Temperature Range | -40 C to +125 C (Automotive, -E grade) |
| ADC | 10-bit, up to 9 channels, 1.1 Msps |
| PWM Channels | 6 channels with complementary outputs and dead-time |
| 16-bit Timers | 3 |
| UART/SPI/I2C | 1 UART, 1 SPI, 1 I2C |
| Peripheral Pin Select (PPS) | Yes |
| DSP Engine | Single-cycle 16x16 MAC, dual 40-bit accumulators, barrel shifter |
| Package | 28-pin QFN (6x6 mm) with exposed thermal pad |
| Mounting Type | Surface Mount |
| MSL Level | 3 (168 hours) |
| Lead Free / RoHS | Yes / Compliant |
| Temperature Grade | Automotive (E) |
DSPIC33FJ12MC202T-E/ML Pin Configuration
| Pin 1 | OSC1/RA0 — Crystal oscillator input / Remappable I/O |
| Pin 2 | RA1 — Remappable I/O |
| Pin 3 | RA2 — Remappable I/O |
| Pin 4 | RA3 — Remappable I/O |
| Pin 5 | RA4 — Remappable I/O |
| Pin 6 | VDD — Positive supply voltage (3.0V to 3.6V) |
| Pin 7 | VSS — Ground reference |
| Pin 8 | PWM1H/RB6 — PWM output high / Remappable I/O |
| Pin 9 | PWM1L/RB7 — PWM output low / Remappable I/O |
| Pin 10 | PWM2H/RB8 — PWM output high / Remappable I/O |
| Pin 11 | PWM2L/RB9 — PWM output low / Remappable I/O |
| Pin 12 | PWM3H/RB10 — PWM output high / Remappable I/O |
| Pin 13 | PWM3L/RB11 — PWM output low / Remappable I/O |
| Pin 14 | RB12 — Remappable I/O |
| Pin 15 | RB13 — Remappable I/O |
| Pin 16 | RB14 — Remappable I/O |
| Pin 17 | RB15 — Remappable I/O |
| Pin 18 | VSS — Ground reference |
| Pin 19 | VDD — Positive supply voltage (3.0V to 3.6V) |
| Pin 20 | AN0/RB0 — Analog input 0 / Remappable I/O |
| Pin 21 | AN1/RB1 — Analog input 1 / Remappable I/O |
| Pin 22 | AN2/RB2 — Analog input 2 / Remappable I/O |
| Pin 23 | AN3/RB3 — Analog input 3 / Remappable I/O |
| Pin 24 | AN4/RB4 — Analog input 4 / Remappable I/O |
| Pin 25 | AN5/RB5 — Analog input 5 / Remappable I/O |
| Pin 26 | AVDD — Analog positive supply |
| Pin 27 | AVSS — Analog ground |
| Pin 28 | MCLR — Master clear reset (active low) |
Typical Applications
DSPIC33FJ12MC202T-E/ML is suitable for 6 applications: Sensorless BLDC Motor Control, PMSM Field-Oriented Control (FOC), Automotive HVAC Blower Controllers, Low-Voltage Pump and Compressor Drives, Battery-Powered E-Bike and Mobility Drives, Small Appliance Variable-Frequency Inverters.
Sensorless BLDC Motor Control
The DSPIC33FJ12MC202T-E/ML drives sensorless BLDC motors using its integrated 6-channel Motor Control PWM with complementary outputs and programmable dead-time. The 1.1 Msps 10-bit ADC samples BEMF zero-cross events with sub-microsecond latency, while the 16x16 MAC executes sliding-mode observer algorithms within each PWM cycle. At 40 MIPS, the controller handles sinusoidal commutation tables and speed PI loops without external DSP chips, suiting 24V brushless fan, pump, and appliance drives in automotive under-hood environments.
Recommended
PMSM Field-Oriented Control (FOC)
For permanent magnet synchronous motor (PMSM) field-oriented control, the DSPIC33FJ12MC202T-E/ML executes Park and Clarke transforms using its dual 40-bit accumulators and barrel shifter. The 12 KB Flash stores FOC gain tables and SVM modulation routines, while the 1 KB SRAM accommodates the d-q axis state vector. Its QFN-28 thermal pad dissipates switching losses from continuous PWM operation, making the part ideal for e-bike traction motors and small industrial servo drives.
Recommended
Automotive HVAC Blower Controllers
In automotive HVAC blower modules, the DSPIC33FJ12MC202T-E/ML drives a single 3-phase BLDC fan motor using sensorless BEMF commutation. Its -E automotive temperature grade (-40C to +125C) withstands under-hood thermal stress, while the nanoWatt idle modes reduce quiescent current when the blower is off. The 1 KB SRAM and 12 KB Flash hold the speed-control PID loop, ramp profiles, and fault diagnostics without requiring external EEPROM, simplifying the BOM and reducing board area.
Recommended
Low-Voltage Pump and Compressor Drives
The DSPIC33FJ12MC202T-E/ML controls 12V and 24V DC pump and compressor motors used in automotive coolant loops, fuel pumps, and refrigeration compressors. Its 6-channel PWM supports complementary switching with 50 ns dead-time insertion to prevent shoot-through in half-bridge drivers. The 1.1 Msps ADC enables current-sense feedback for torque limiting and stall detection, while the Peripheral Pin Select (PPS) allows flexible assignment of feedback signals to remaining digital I/O pins for diagnostics.
Recommended
Battery-Powered E-Bike and Mobility Drives
For battery-powered e-bike traction controllers and mobility scooter drives, the DSPIC33FJ12MC202T-E/ML delivers FOC at up to 40 MIPS while its nanoWatt power management extends battery life. The 3.0V to 3.6V supply range operates directly from a 3.3V LDO regulator fed by a 24V or 36V battery pack. Its 12 KB Flash accommodates torque-mapped pedal-assist curves, while 1 KB SRAM holds the FOC observer state without needing external memory, reducing BOM cost and PCB footprint.
Recommended
Small Appliance Variable-Frequency Inverters
The DSPIC33FJ12MC202T-E/ML is well suited for variable-frequency inverters in washing machines, dishwashers, and refrigerator compressors where it generates the sinusoidal PWM drive signals. Its center-aligned PWM mode produces lower acoustic noise than edge-aligned PWM, while the 16-bit timers provide precise speed measurement from Hall sensors or BEMF. The extended -E temperature grade tolerates the elevated ambient of compressor housings, and the QFN-28 thermal pad supports continuous switching currents without external heatsinking.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ12MC202T-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ12MC202-E/ML | DSPIC33FJ12MC201T-E/ML | DSPIC33FJ12MC202-I/ML | DSPIC33FJ12GP202-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-28 (6x6) | QFN-28 (6x6) - same | QFN-28 (6x6) - same | QFN-28 (6x6) - same | QFN-28 (6x6) - same |
| Program Flash | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB |
| SRAM | 1024 bytes | 1024 bytes | 512 bytes (-50%) | 1024 bytes | 1024 bytes |
| EEPROM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| Motor Control PWM Channels | 6 channels | 6 channels | 6 channels | 6 channels | 0 channels (general-purpose DSP) |
| Temperature Grade | Automotive -40C to +125C (-E) | Automotive -40C to +125C (-E) | Automotive -40C to +125C (-E) | Industrial -40C to +85C (-I) | Industrial -40C to +85C (-I) |
| CPU Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
Key Differentiators
- Same 12 KB Flash as the MC202 variant but with reduced 512 B SRAM (vs DSPIC33FJ12MC201T-E/ML)
- Integrated Motor Control PWM with 6 channels and programmable dead-time (vs DSPIC33FJ12GP202-I/ML)
- Automotive -E temperature grade versus industrial -I grade (vs DSPIC33FJ12MC202-I/ML)
Design Notes
The QFN-28 package exposes a thermal pad (EP) at the package center that must be soldered to a ground copper pour with at least 6 thermal vias for proper heat dissipation. Estimated: at continuous 40 MIPS operation with all peripherals active, the device draws approximately 30 mA from 3.3V (100 mW). With adequate PCB copper, theta_JA drops to roughly 30 C/W, keeping junction rise under 3C. Without the thermal pad soldered, junction temperatures can exceed 100C at ambient above 70C in enclosed motor-drive enclosures.
Place 100 nF ceramic decoupling capacitors within 3 mm of each VDD/AVDD pin and a single 10 uF bulk capacitor near the package. Keep the analog AVSS/AVDD traces short and isolated from the PWM switching traces to minimize ADC noise coupling. Route the crystal oscillator traces symmetrically with a grounded guard ring and keep trace lengths under 10 mm to avoid clock distortion at 40 MIPS.
Peripheral Pin Select (PPS) allows remapping of digital peripherals to any RB pin, but remapped functions are not available on the same pin as the analog channels AN0-AN5 used by the ADC. When laying out the PCB, route the 6 PWM outputs (PWM1H/L through PWM3H/L) on adjacent RB pins with matched trace lengths to within 2 mm to prevent timing skew across the 3-phase inverter. The exposed pad must connect to a low-impedance ground plane spanning at least 100 mm^2 for thermal relief.
Do not program the device at VDD below 3.0V - the Flash programming algorithm requires the full specified supply range. The MCLR pin must have a 10 kohm pull-up to VDD and a 100 nF capacitor to ground for proper in-circuit serial programming (ICSP). When using the nanoWatt Sleep mode, ensure the ADC is disabled before entering Sleep to prevent spurious wake-up events from analog comparator transitions. Finally, always ground the AVDD/AVSS pins even if the ADC is unused.
Compliance Information
RoHS and REACH compliant per Microchip product page. -E temperature grade denotes AEC-Q100 automotive qualification. Lead-free (Pb-free) terminal finish. Halogen-free status not explicitly stated in the verified web data; refer to Microchip for confirmation. Conflict-minerals declaration available on Microchip corporate responsibility page.
