DSPIC33FJ12MC202T-E/SO - 16-bit DSC, 12KB Flash, 28-SOIC | Microchip
MPN: DSPIC33FJ12MC202T-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.1 | $5.10 |
| 10 | $4.58 | $45.80 |
| 100 | $3.95 | $395.00 |
| 500 | $3.45 | $1,725.00 |
| 1,000 | $3.05 | $3,050.00 |
DSPIC33FJ12MC202T-E/SO Overview
What is a Digital Signal Controller? A Digital Signal Controller (DSC) is a hybrid device that combines the deterministic interrupt response of a microcontroller (MCU) with the computational throughput of a Digital Signal Processor (DSP). The DSC taxonomy flows as: microcontroller < digital signal controller < dsPIC33F family < 16-bit MCU < semiconductor. DSCs are widely used in applications that require single-cycle MAC (multiply-accumulate) operations, hardware PWMs, and fast ADC sampling - exactly what motor control, power conversion, and switch-mode power supplies demand.
Key features include a 16-bit data path with single-cycle 40 MIPS throughput, an integrated Motor Control PWM module with up to 6 PWM outputs, a 10-bit ADC capable of up to 1.1 Msps, and the nanoWatt power management suite for sleep currents down to the microamp range. The device is qualified to AEC-Q100 standards, making it suitable for under-hood automotive motor control systems including HVAC blowers, fuel pumps, water pumps, and seat-position actuators.
The architecture combines a modified Harvard bus with a single-cycle MAC unit that executes 40 million DSP operations per second, paired with dual-port SRAM and tightly-coupled peripherals. The 28-SOIC footprint exposes three PWM channels, an I2C/SPI/UART set, and a 6-channel 10-bit ADC, allowing designers to build compact BLDC, PMSM, or sensored/stepper motor inverters.
Typical applications include brushless DC (BLDC) motor drives, permanent-magnet synchronous motor (PMSM) sensorless control, switched-mode power supplies (SMPS) and uninterruptible power supplies (UPS), HVAC fan control, and small appliance motor inverters. The AEC-Q100 qualification, extended temperature grade, and rich PWM peripheral set make it especially attractive for automotive body electronics and white-goods variable-frequency drives.
When designing with the DSPIC33FJ12MC202T-E/SO, ensure the PWM fault input and current-sense ADC channels are prioritized in firmware; the PWM module can trigger the ADC for sub-microsecond current-loop sampling. Use the device's nanoWatt sleep mode to drop quiescent current to a few microamps between motor commands.
This page synthesizes distributor pricing, AEC-Q100 qualified drops-in alternatives, and hands-on motor-control design notes not bundled in the manufacturer datasheet, giving engineers a faster path to a production-ready BLDC or PMSM design.
Drop-in alternatives for DSPIC33FJ12MC202T-E/SO — 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/SO (same form factor and footprint) — differing in ADC, Core Architecture, Mounting Type, Operating Temperature, PWM Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ12MC202-I/SO
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC33FJ12MC202T-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12MC202T-E/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC33F 16-bit DSC (modified Harvard) |
| CPU Speed | 40 MIPS (40 MHz) |
| Instruction Set | 16-bit data path, 24-bit instructions |
| Program Memory (Flash) | 12 KB (12K x 8) |
| Data Memory (SRAM) | 1024 bytes |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (automotive Grade 1, "E") |
| Package / Pin Count | 28-pin SOIC (SO) |
| ADC | 10-bit, 1.1 Msps, 6 channels |
| PWM Channels | 6 outputs (Motor Control PWM) |
| Communication Peripherals | I2C, SPI, UART (1 each) |
| Timers | 16-bit x 3, 32-bit x 1 (typical) |
| DMA | 8 channels |
| Qualification | AEC-Q100 Grade 1 |
| RoHS Status | ROHS3 Compliant |
| Mounting Type | Surface Mount (SOIC-28-300mil) |
| Packaging | Tape & Reel (TR), suffix "T" |
DSPIC33FJ12MC202T-E/SO Pin Configuration
| Pin 1 | SDA/RXD/PGEC3 — I2C data / UART RX / ICSP clock alternate |
| Pin 2 | SCL/TXD/PGED3 — I2C clock / UART TX / ICSP data alternate |
| Pin 3 | RP0/CN4/RB0 — Remappable I/O / change notification / port B |
| Pin 4 | RP1/CN5/RB1 — Remappable I/O / change notification / port B |
| Pin 5 | RP2/CN6/RB2 — Remappable I/O / change notification / port B |
| Pin 6 | RP3/CN7/RB3 — Remappable I/O / change notification / port B |
| Pin 7 | VDD — Core and IO supply (3.3V nominal) |
| Pin 8 | RP4/CN8/RB4 — Remappable I/O / change notification / port B |
| Pin 9 | RP5/CN9/RB5 — Remappable I/O / change notification / port B |
| Pin 10 | PGEC1 — ICSP programming clock |
| Pin 11 | PGED1 — ICSP programming data |
| Pin 12 | RP6/CN10/RB6 — Remappable I/O / change notification / port B |
| Pin 13 | RP7/CN11/RB7 — Remappable I/O / change notification / port B |
| Pin 14 | RP8/CN12/RB8 — Remappable I/O / change notification / port B |
| Pin 15 | RP9/CN13/RB9 — Remappable I/O / change notification / port B |
| Pin 16 | RP10/CN14/RB10 — Remappable I/O / change notification / port B |
| Pin 17 | RP11/CN15/RB11 — Remappable I/O / change notification / port B |
| Pin 18 | RP12/CN16/RB12 — Remappable I/O / change notification / port B |
| Pin 19 | RP13/CN17/RB13 — Remappable I/O / change notification / port B |
| Pin 20 | RP14/CN18/RB14 — Remappable I/O / change notification / port B |
| Pin 21 | VSS — Digital ground |
| Pin 22 | RP15/CN19/RB15 — Remappable I/O / change notification / port B |
| Pin 23 | AN0/RP16/RB16 — Analog input 0 / remappable I/O |
| Pin 24 | AN1/RP17/RB17 — Analog input 1 / remappable I/O |
| Pin 25 | AN2/RP18/RB18 — Analog input 2 / remappable I/O |
| Pin 26 | AN3/RP19/RB19 — Analog input 3 / remappable I/O |
| Pin 27 | PWM1H — PWM 1 high-side output |
| Pin 28 | PWM1L — PWM 1 low-side output |
Typical Applications
DSPIC33FJ12MC202T-E/SO is suitable for 7 applications: Brushless DC (BLDC) Motor Control, Permanent Magnet Synchronous Motor (PMSM) FOC Drives, Switched-Mode Power Supplies (SMPS) and Power Conversion, Automotive HVAC Blower and Fan Control, White-Goods Variable-Frequency Drives (VFDs), Industrial Pumps and Small Servo Drives, Uninterruptible Power Supplies (UPS) and Inverters.
Brushless DC (BLDC) Motor Control
The DSPIC33FJ12MC202T-E/SO's 40 MIPS DSP core and dedicated Motor Control PWM module make it ideal for sensorless or sensored BLDC drives. The single-cycle 16x16 MAC engine executes trapezoidal or sinusoidal commutation in microseconds, while 6 PWM outputs with programmable dead-time handle 3-phase inverter switching above 20 kHz. The hardware-triggered 10-bit ADC at 1.1 Msps samples phase currents synchronously with the PWM, enabling tight current-loop bandwidth.
Recommended
Permanent Magnet Synchronous Motor (PMSM) FOC Drives
The DSPIC33FJ12MC202T-E/SO executes Park/Clarke transforms and PID loops for sensorless or encoder-based PMSM field-oriented control. With 12 KB Flash holding the FOC state machine plus speed/current PI controllers, plus 1024 bytes SRAM for the Clarke transform scratchpad, the device meets 10 kHz current-loop rates comfortably. AEC-Q100 Grade 1 qualification lets designers deploy PMSM drives in automotive HVAC compressors and e-pumps without re-qualifying the MCU.
Recommended
Switched-Mode Power Supplies (SMPS) and Power Conversion
The DSPIC33FJ12MC202T-E/SO regulates voltage and current loops in digital SMPS designs thanks to its 1.1 Msps ADC and 6 PWM outputs. The 40 MIPS DSP engine computes digital compensators and feed-forward paths in real time, while the 3.3V core simplifies auxiliary rail designs. Designers use it for telecom isolated DC-DC converters, industrial power-factor-correction stages, and solar micro-inverter MPPT loops.
Recommended
Automotive HVAC Blower and Fan Control
The DSPIC33FJ12MC202T-E/SO's AEC-Q100 Grade 1 certification and -40C to +125C operating range make it a strong fit for automotive HVAC blower modules. The Motor Control PWM module drives a 3-phase inverter for brushless blower motors at variable speed; the hardware fault input enables fast overcurrent shutdown within microseconds. The 1024-byte SRAM is sufficient for closed-loop RPM control via Back-EMF or Hall sensors.
Recommended
White-Goods Variable-Frequency Drives (VFDs)
Washing-machine and refrigerator compressors run on variable-frequency drives built around the DSPIC33FJ12MC202T-E/SO. The 6-PWM motor module drives 3-phase inverter bridges directly; the 10-bit ADC samples DC-link voltage and motor current; and the 12 KB Flash holds both compressor start-up state machine and the steady-state V/F curve. The nanoWatt sleep mode drops quiescent current to a few microamps between spin commands.
Recommended
Industrial Pumps and Small Servo Drives
Industrial dosing pumps and miniature servo drives benefit from the DSPIC33FJ12MC202T-E/SO's deterministic interrupt response and DSP MAC throughput. The 40-MIPS engine runs PID loops at sub-100-microsecond intervals while the 6-PWM module drives brushed or brushless DC actuators. UART/SPI/I2C peripherals talk to host PLCs and HMIs. The 28-SOIC footprint fits tightly-spaced control boards in pump enclosures.
Recommended
Uninterruptible Power Supplies (UPS) and Inverters
Low-power UPS units and pure-sine-wave inverters use the DSPIC33FJ12MC202T-E/SO for sinusoidal PWM generation and battery-management control. The 6-PWM module synthesizes SPWM at switching frequencies of 16-20 kHz; the 1.1 Msps ADC samples battery current and output voltage for closed-loop regulation. The AEC-Q100 qualification provides extra margin in industrial UPS environments, while 1024-byte SRAM is sufficient for PID plus DEADTIME compensators.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ12MC202T-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ12MC202-I/SO | DSPIC33FJ12MC202T-I/SO | DSPIC33FJ12MC202T-E/ML |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-QFN (ML) - different |
| Operating Temperature | -40C to +125C (E, AEC-Q100) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) |
| Flash Memory | 12 KB | 12 KB | 12 KB | 12 KB |
| SRAM | 1024 bytes | 1024 bytes | 1024 bytes | 1024 bytes |
| CPU Performance | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| ADC | 10-bit, 1.1 Msps | 10-bit, 1.1 Msps | 10-bit, 1.1 Msps | 10-bit, 1.1 Msps |
| PWM Channels | 6 outputs | 6 outputs | 6 outputs | 6 outputs |
| Packaging Format | Tape & Reel (TR) | Tube / Tray | Tape & Reel (TR) | Tape & Reel (TR) |
Key Differentiators
- AEC-Q100 Grade 1 automotive qualification (-40C to +125C) (vs DSPIC33FJ12MC202T-I/SO)
- DSP engine with single-cycle 16x16 MAC for motor-control DSP algorithms (vs PIC18F2431 (MCU only))
- Same 28-SOIC footprint as industrial-grade sibling for design reuse (vs DSPIC33FJ12MC202T-E/ML (QFN))
Design Notes
Place the 1.5 uF and 0.1 uF VDD decoupling capacitors within 5 mm of the VDD pin (pin 7) and VSS pin (pin 21). For the 28-SOIC exposed-pad variant ("EP"), solder the thermal pad to a 1 square-inch copper pour to keep junction temperature below 100 C at full load. Estimated: at MIPS=40, I_core approx 30 mA, and ambient=85 C, the SOIC theta_JA of ~70 C/W gives a junction rise of ~2 C/W margin without an additional heatsink.
Avoid feeding the PWM1H pin to a non-isolated gate driver without a level shifter - the DSPIC33FJ12MC202T-E/SO outputs 3.3V CMOS, which is below the 5V Vih of many discrete gate drivers. Use a boot-strap half-bridge driver such as the Microchip MCP14E5 family to translate the 3.3V PWM levels to 12V gate-drive levels, or set the PWM module to open-drain mode with a pull-up to drive 5V inputs.
Estimated: in 28-SOIC at full 40 MIPS and ambient 125 C in an automotive under-hood enclosure, derate expected junction temperature by 25 C with a small copper pour of 1 square inch. For higher-current 3-phase drives, place the DSC far from inverter MOSFETs and use a 4-layer PCB to spread heat. Do not let the 125 C automotive temperature grade lull you into skipping derating - the silicon itself still has thermal limits.
When routing the PWM outputs to gate drivers, keep traces matched within 0.5 mm to avoid skew between high-side and low-side channels. Use a ground return via adjacent to each PWM output and keep analog ANx traces far from PWM edges to prevent coupling into ADC samples. The 10-bit ADC is sensitive - decouple analog VDD with a ferrite bead from digital VDD to achieve ENOB above 9.5 bits at 1 Msps throughput.
Compliance Information
Per Microchip USA listing: ROHS3 Compliant; AEC-Q100 qualified; manufacturer lead time ~23 weeks as of 2026. Halogen-free status not stated in available data.
