DSPIC33FJ12MC201-E/SS - 16-bit Motor Control DSC, 40MHz, SSOP-28 | Microchip
MPN: DSPIC33FJ12MC201-E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.42 | $5.42 |
| 10 | $4.86 | $48.60 |
| 100 | $4.31 | $431.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.42 | $3,420.00 |
DSPIC33FJ12MC201-E/SS Overview
A Digital Signal Controller (DSC) is a hybrid processor class that combines the deterministic interrupt response and peripheral set of a microcontroller (MCU) with the multiply-accumulate (MAC) throughput and single-cycle MAC hardware of a Digital Signal Processor (DSP). The dsPIC33F family is positioned in the hierarchy as: DSC -> 16-bit DSC -> dsPIC33F family -> motor-control DSC, sitting alongside general-purpose microcontrollers (MCU) in Microchip's portfolio and serving applications that require closed-loop control at high update rates (typically 10-50 kHz PWM).
Key features of this part include a 40 MIPS CPU, single-cycle 16x16 MAC, dual 40 MHz 16-bit timers, a 6-channel motor-control PWM with complementary outputs and dead-time control, a 10-bit 1.1 Msps ADC with up to 6 analog inputs, and a 21-I/O count spread across the SSOP-28 footprint. The -E temperature grade extends the operating range to +125C, making the part suitable for under-hood automotive and harsh industrial environments.
The architecture uses a 24-bit instruction word with a variable-length opcode field and a 16-bit data path. Program memory is Flash with self-programming support, and data EEPROM emulation is available. The motor-control PWM supports center-aligned, edge-aligned, and multi-mode operation with hardware fault inputs, eliminating software timing jitter in critical shutdown paths.
Typical applications include BLDC and PMSM motor drives, sensorless and Hall-sensor FOC fan/ pump controllers, small appliance motor control, drone ESCs, automotive body electronics (door modules, mirror adjust), and HVAC blower control. The combination of deterministic PWM and DSP throughput makes the part well suited to field-oriented control (FOC) implementations on low-cost 3-phase inverter stages.
When designing with the DSPIC33FJ12MC201, ensure the VDD/VSS decoupling follows the 100 nF + bulk capacitor recommendation from the datasheet and that the motor-control PWM fault pin is wired to the gate-driver fault output for hardware shutdown latency below 1 us. Plan code size against the 12 KB Flash limit; for state-space observers or sensorless FOC, the I/P or larger Flash variants in the family may be required.
Drop-in alternatives for DSPIC33FJ12MC201-E/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 DSPIC33FJ12MC201-E/SS (same form factor and footprint) — differing in Core Architecture, Package, ADC, Operating Temperature, Mounting Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ12MC201-I/SS
✅ Drop-In✓ In Stock
$2.46 / Unit
View Datasheet →DSPIC33FJ12MC201-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ12MC201-E/P
✅ Drop-In✓ In Stock
$2.58 / Unit
View Datasheet →DSPIC33FJ12MC202-E/SS
✅ Drop-In✓ In Stock
$2.99 / Unit
View Datasheet →DSPIC33FJ12GP201-E/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.18 / Unit
View Datasheet →DSPIC33FJ12GP202-I/SP
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.69 / Unit
View Datasheet →DSPIC33FJ12MC201-E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F modified Harvard with DSP |
| Program Memory (Flash) | 12 KB |
| Data RAM | 1 KB |
| Operating Frequency | 40 MHz (40 MIPS) |
| Supply Voltage | 3.0 V to 3.6 V |
| I/O Pins | 21 |
| ADC | 10-bit, up to 6 channels, 1.1 Msps |
| Motor Control PWM | 6 channels with complementary outputs and dead-time |
| Timers | Two 16-bit timer/counters |
| Temperature Grade | -40C to +125C (Extended, -E) |
| Package | SSOP-28 (5.30 mm body) |
| Mounting Type | Surface Mount |
| Instruction Set | 16-bit data path with 24-bit instruction word |
| DSP Capability | Single-cycle 16x16 MAC, 40-bit accumulator |
| RoHS Status | Compliant |
| MSL Level | MSL 1 (per JEDEC J-STD-020) |
DSPIC33FJ12MC201-E/SS Pin Configuration
| Pin 1 | SDA/RP9/CN21 — I2C data / remappable I/O |
| Pin 2 | SCL/RP8/CN20 — I2C clock / remappable I/O |
| Pin 3 | RP7/CN23 — Remappable I/O / PWM output |
| Pin 4 | RP6/CN22 — Remappable I/O / PWM output |
| Pin 5 | RP5/CN27 — Remappable I/O / PWM output |
| Pin 6 | RP4/CN28 — Remappable I/O / PWM output |
| Pin 7 | RP3/CN29 — Remappable I/O |
| Pin 8 | RP2/CN30 — Remappable I/O |
| Pin 9 | VSS — Ground reference |
| Pin 10 | PWM1H/RP1/CN1 — PWM1 high-side output |
| Pin 11 | PWM1L/RP0/CN0 — PWM1 low-side output |
| Pin 12 | PWM2H/RP13/CN7 — PWM2 high-side output |
| Pin 13 | PWM2L/RP14/CN8 — PWM2 low-side output |
| Pin 14 | PWM3H/RP15/CN9 — PWM3 high-side output |
| Pin 15 | PWM3L/RP16/CN10 — PWM3 low-side output |
| Pin 16 | MCLR — Master clear / reset (active-low) |
| Pin 17 | VDD — Positive supply voltage |
| Pin 18 | OSC1/RA0 — Crystal oscillator input / I/O |
| Pin 19 | OSC2/RA1 — Crystal oscillator output / I/O |
| Pin 20 | PGED1/RA2 — Programming data / I/O |
| Pin 21 | PGEC1/RA3 — Programming clock / I/O |
| Pin 22 | AN0/RB0 — Analog input 0 / I/O |
| Pin 23 | AN1/RB1 — Analog input 1 / I/O |
| Pin 24 | AN2/RB2 — Analog input 2 / I/O |
| Pin 25 | AN3/RB3 — Analog input 3 / I/O |
| Pin 26 | AN4/RB4 — Analog input 4 / I/O |
| Pin 27 | AN5/RB5 — Analog input 5 / I/O |
| Pin 28 | AVDD — Analog positive supply |
Typical Applications
DSPIC33FJ12MC201-E/SS is suitable for 7 applications: BLDC / PMSM Motor Control, Sensorless FOC Fan and Pump Controller, Small Appliance Motor Drive, Drone Electronic Speed Controller (ESC), Automotive Body Electronics, HVAC Blower and Damper Control, Industrial Stepper and Servo Drive.
BLDC / PMSM Motor Control
The DSPIC33FJ12MC201-E/SS drives 3-phase BLDC and PMSM motors using its integrated 6-channel motor-control PWM with complementary outputs and programmable dead-time, eliminating the timing jitter that plagues software-only PWM implementations. The 40 MIPS core executes Clarke-Park transforms and PI current loops within a 20 us control period, while the 10-bit 1.1 Msps ADC samples phase currents synchronously to the PWM center for clean zero-crossing detection. With 12 KB Flash and 1 KB RAM the part fits trapezoidal and sensored FOC code under tight BOM cost. The -E temperature grade supports under-hood automotive and industrial pump applications up to +125C ambient.
Recommended
Sensorless FOC Fan and Pump Controller
For cost-sensitive HVAC blower and pump drives, the DSPIC33FJ12MC201-E/SS runs back-EMF or sliding-mode observer-based sensorless FOC on a single-shunt current-sense topology. The DSP engine's single-cycle 16x16 MAC and 40-bit accumulator handle the observer math within the 25-50 us loop budget, while the motor-control PWM's hardware fault input shuts down the gate driver within 1 us on overcurrent. The 21-I/O count is sufficient to drive the 6-FET inverter, an external EEPROM for trim, and a UART or I2C interface for HVAC network connectivity. Extended -40C to +125C operation covers under-hood and outdoor cabinet environments.
Recommended
Small Appliance Motor Drive
The DSPIC33FJ12MC201-E/SS powers small kitchen and personal-care appliances such as blenders, vacuum cleaners, and hair dryers that need variable-speed 3-phase BLDC or universal motor control. Its compact SSOP-28 footprint fits sub-50 mm^2 PCBs, while the integrated motor-control PWM removes the need for an external gate-driver timer. The 12 KB Flash accommodates torque-compensation and over-temperature derating tables required by IEC 60335-1. The Extended -E temperature grade supports hot-zone mounting near the motor windings, and the 10-bit ADC monitors motor current and supply voltage for adaptive control without extra analog ICs.
Recommended
Drone Electronic Speed Controller (ESC)
The DSPIC33FJ12MC201-E/SS targets sub-250 g hobby and commercial drone ESCs that demand 8-12 kHz FOC update rates on a tight weight and cost budget. The 40 MIPS DSP core runs fast trigonometric operations needed for sine-wave commutation, while the 6-channel motor-control PWM drives the 3-phase FET bridge with hardware dead-time to prevent shoot-through. The 10-bit ADC synchronizes to the PWM center for clean current sampling, and the SSOP-28 footprint under 80 mm^2 leaves room for the FETs and current-sense amplifiers on the same PCB. Extended -40C to +125C operation handles motor-heated enclosures in summer flight conditions.
Recommended
Automotive Body Electronics
The DSPIC33FJ12MC201-E/SS drives low-power automotive body modules such as power window lifts, seat adjusters, mirror fold, and HVAC damper motors. The -E Extended temperature grade covers under-dash and door-module thermal environments up to +125C. The 40 MIPS core handles LIN or CAN-bus protocol stacks alongside the motor-control firmware, while the dedicated PWM peripheral provides hardware shutdown on bus faults. The 21-I/O count accommodates H-bridge direction control, encoder feedback, and LIN transceiver handshake. AEC-Q100 documentation is NOT provided for this part, so for safety-critical automotive ASIL applications use a Q-graded successor such as dsPIC33CK or dsPIC33CH.
Recommended
HVAC Blower and Damper Control
The DSPIC33FJ12MC201-E/SS runs variable-speed blower motors and electronically-controlled HVAC dampers, where noise and efficiency targets push designs away from fixed-speed brushed motors toward sinusoidal BLDC. Its DSP extensions perform the FFT-based acoustic analysis needed to detect bearing wear, while the motor-control PWM produces smooth torque to eliminate commutation-induced audible noise. The 12 KB Flash stores multiple airflow-vs-RPM profiles for different HVAC modes, and the Extended -40C to +125C temperature grade handles plenum-chamber thermal exposure. The 10-bit ADC reads supply voltage and motor current for stall detection without extra analog ICs.
Recommended
Industrial Stepper and Servo Drive
The DSPIC33FJ12MC201-E/SS drives small industrial stepper and servo amplifiers in CNC, 3D-printer, and pick-and-place machines, where its DSP throughput delivers microstepping waveforms with sub-microsecond resolution. The 40 MIPS core computes the sine-cosine LUT lookups needed for 256-microstep operation, while the motor-control PWM's complementary outputs drive the H-bridge with hardware dead-time. The 21-I/O count accepts quadrature encoder feedback and end-stop limits, and the 10-bit ADC reads motor current for closed-loop torque control. The Extended -40C to +125C grade supports sealed enclosure operation, while the SSOP-28 footprint fits the compact 50 mm^2 amplifier PCBs typical of integrated NEMA-17/23 drives.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ12MC201-E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ12MC201-I/SS | DSPIC33FJ12MC201-E/SO | DSPIC33FJ12MC201-E/P | DSPIC33FJ12MC202-E/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 | SSOP-28 - same | SSOP-28 - same family (SOIC-28) | SSOP-28 - same family (PDIP-28) | SSOP-28 - same |
| Program Flash | 12 KB | 12 KB | 12 KB | 12 KB | 12 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Core Speed | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS |
| Motor-Control PWM Channels | 6 (3 complementary pairs) | 6 | 6 | 6 | 6 |
| ADC | 10-bit, 6 channels | 10-bit, 6 channels | 10-bit, 6 channels | 10-bit, 6 channels | 10-bit, 8 channels (+2) |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| Approx. Unit Price (qty 1) | USD 5.42 | USD 4.80-5.10 | USD 5.50-5.80 | USD 5.60-6.00 | USD 5.65-6.00 |
Key Differentiators
- Dedicated motor-control PWM peripheral with hardware dead-time and fault input (vs DSPIC33FJ12GP201-E/SO)
- Extended -40C to +125C temperature grade in the same SSOP-28 footprint (vs DSPIC33FJ12MC201-I/SS)
- Smallest available footprint option at SSOP-28 (vs DSPIC33FJ12MC201-E/SO)
- DSP extensions for sinusoidal FOC and observer math (vs PIC18F2431-I/SO)
Design Notes
Place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD pin and a 10 uF bulk capacitor near the AVDD pin to suppress switching noise from the internal PLL and motor-control PWM. According to the Microchip DSPIC33FJ12MC201 datasheet 70265B, AVDD and VDD should be tied to the same 3.3 V rail but the analog return must be routed through a ferrite bead to keep digital switching transients out of the ADC reference. Estimated: at 40 MIPS with all peripherals active, the core draws ~30 mA, so a 3.3 V LDO rated at least 100 mA with 200 mV dropout margin is recommended.
Route the motor-control PWM outputs (PWM1H/L, PWM2H/L, PWM3H/L) as differential pairs with ground shielding on each layer transition, keeping the trace length below 25 mm to limit ringing on the gate-driver inputs. The analog inputs (AN0-AN5) should be guarded by a ground trace and routed away from the PWM switching nodes by at least 5 mm. Estimated: at 20 kHz PWM with 1 ns rise time, a 25 mm trace on FR4 produces ~5 nH of parasitic inductance, which can cause 0.5 V ringing at the gate-driver input without proper termination.
Connect the OSC1/OSC2 pins directly to the crystal or external clock source with traces as short as possible and surrounded by a ground ring to avoid EMI pickup that can corrupt the ADC sampling window. Use a 4-layer PCB with a continuous ground plane under the DSC and motor-drive stage to provide a low-impedance return path for the high-di/dt motor currents. The MCLR pin requires a 10 kohm pull-up and a 100 nF cap to ground for noise-free reset behavior during motor commutation events.
Do not exceed the 3.6 V absolute maximum on VDD or AVDD - even brief transients from motor regeneration can latch up the part. Ensure the motor-control PWM fault input (FLTA1) is wired to the gate-driver fault output before the first PWM edge, otherwise a short-circuit can destroy the inverter. Per Microchip errata DS80000501, early silicon revisions have a PWM synchronization issue at startup that requires the workaround of writing PTCON<SEVTCMP> = 0 before enabling the PWM module. The 12 KB Flash limit is restrictive for sensorless FOC; budget for at least 2 KB headroom for future bug fixes.
Compliance Information
RoHS and REACH compliance per Microchip product page. Lead-free reflow-compatible per JEDEC J-STD-020 MSL 1. AEC-Q100 is not_applicable - this part is not qualified to automotive Q100 standards; for safety-critical automotive ASIL applications use a Q-graded dsPIC33CK or dsPIC33CH successor.
