DSPIC33FJ32MC102-I/TL - 16-bit DSC 32KB Flash 16 MIPS | Microchip
MPN: DSPIC33FJ32MC102-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.62 | $5.62 |
| 10 | $5.1 | $51.00 |
| 100 | $4.55 | $455.00 |
| 500 | $4.1 | $2,050.00 |
| 1,000 | $3.72 | $3,720.00 |
DSPIC33FJ32MC102-I/TL Overview
A Digital Signal Controller combines the compute architecture of a microcontroller with the DSP engine of a digital signal processor. Within the power-management hierarchy, the dsPIC33F family sits between general-purpose MCUs (such as the PIC18) and dedicated DSPs, offering single-cycle MAC and DSP instructions, hardware multiply-accumulate, and motor-control-specific peripherals in a single low-cost device.
Key features include 32KB Flash with self-programming capability, a 16-bit CPU running up to 16 MIPS at 3.3V, an 8-channel 10-bit ADC with simultaneous sampling capability, dual motor-control PWM (MCPWM) modules with complementary outputs and dead-time control, and the Charge Time Measurement Unit (CTMU) for capacitive touch and precision time measurement. Peripheral Pin Select (PPS) allows flexible digital peripheral routing to I/O pins, which is critical in low-pin-count designs.
The core combines a PIC24 16-bit MCU architecture with a dedicated DSP engine supporting DSPmultiply, DSPadd, and MAC-class operations. Three 40-bit accumulators and dual address registers enable efficient execution of field-oriented control (FOC) loops for BLDC and PMSM motors. The MCPWM modules include edge- and center-aligned modes, fault inputs, and duty-cycle resolution suited to power conversion topologies.
Typical applications include BLDC and PMSM motor drives, AC-DC and DC-DC power supplies, power inverters, electronic ballasts, and sensorless motor control where the fast ADC and MCPWM peripherals provide a complete embedded control solution on a small 5x5 mm footprint.
Design consideration: run the core from an internal PLL off an external crystal and decouple all VDD/VSS pairs; the QFN thermal pad should be soldered to a grounded copper pour for reliable ADC reference stability.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical motor-control design notes not found in a single manufacturer document.
Drop-in alternatives for DSPIC33FJ32MC102-I/TL — 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 DSPIC33FJ32MC102-I/TL (same form factor and footprint) — differing in Package, Operating Temperature, Motor Control PWM, RTCC, Core.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC101-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16MC102-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16MC101-I/TL
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC101T-I/SO
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →DSPIC33FJ32MC102-E/SO
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33FJ32MC102-I/TL Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum CPU Speed | 16 MIPS |
| Program Memory (Flash) | 32 KB |
| Data RAM | 2 KB (per Mouser listing; Microchip USA cites 1 KB - verify) |
| Operating Voltage | 3 V to 3.6 V (nominal 3.3 V) |
| Operating Temperature | -40C to +85C (I grade) |
| ADC Resolution | 10-bit |
| ADC Channels | 8 |
| Motor Control PWM | MCPWM with complementary outputs, dead time, fault input |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Pin Select (PPS) | Yes |
| Package | 36-VTLA (5x5 mm) QFN |
| Mounting Type | Surface Mount |
| Application Focus | Motor Control, Digital Power |
| Product Family | dsPIC33FJ MC (Motor Control) |
| Packaging | Tape and Reel (T suffix) |
DSPIC33FJ32MC102-I/TL 36-vtla (5x5 mm) qfn Pin Configuration Guide
Pin configuration for DSPIC33FJ32MC102-I/TL (36-vtla (5x5 mm) qfn 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 DSPIC33FJ32MC102-I/TL.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32MC102-I/TL is suitable for 6 applications: Sensorless BLDC Motor Drive, PMSM Field-Oriented Control (FOC), AC-DC and DC-DC Digital Power Supplies, Capacitive Touch Interfaces with CTMU, Power Inverters and Electronic Ballasts, Industrial Pumps, Fans, and Compressors.
Sensorless BLDC Motor Drive
The DSPIC33FJ32MC102-I/TL fits sensorless BLDC drives because its 8-channel 10-bit ADC samples phase currents and back-EMF while the MCPWM module generates complementary PWM with programmable dead time and hardware fault shutdown. In a typical topology, the MCPWM drives a three-phase MOSFET bridge at 16-20 kHz with the ADC triggered synchronously to the PWM period, minimizing switching noise in current readings. The 16 MIPS DSP core with MAC instructions executes commutation and PI speed loops well within budget, and Peripheral Pin Select lets designers route PWM, fault, and tach inputs optimally in a 36-pin 5x5 mm layout, reducing board area versus larger MCUs.
Recommended
PMSM Field-Oriented Control (FOC)
For PMSM FOC, the DSPIC33FJ32MC102-I/TL provides the required compute and peripheral mix: the DSP engine with 40-bit accumulators executes Clark/Park transforms and PI current loops at multi-kHz rates at 16 MIPS, while the center-aligned MCPWM with dead-time insertion drives the SVPWM inverter stage. The 10-bit ADC captures ia and ib phase currents synchronized to PWM center, and the CTMU can timestamp rotor-position events. Firmware fits comfortably in 32KB Flash including SVPWM tables and startup routines. The trade-off versus larger MC102/MC204 parts is fewer ADC channels, so designs should multiplex current and voltage sense inputs on the 36-pin VTLA footprint.
Recommended
AC-DC and DC-DC Digital Power Supplies
In digital power, the DSPIC33FJ32MC102-I/TL acts as the loop controller for LLC, flyback, or buck topologies. The MCPWM module with edge- and center-aligned modes and duty-cycle resolution generates the switching waveform, while the fast 10-bit ADC closes the voltage or current loop synchronously to PWM. The 16 MIPS core runs compensator math with DSP MAC instructions, and the hardware fault input provides cycle-by-cycle current limiting for transformer protection. Its industrial -40C to +85C rating and 3.0-3.6V operation suit telecom and adapter supplies; the small 36-VTLA (5x5 mm) package keeps the controller footprint minimal on densely routed power boards.
Recommended
Capacitive Touch Interfaces with CTMU
The integrated Charge Time Measurement Unit makes the DSPIC33FJ32MC102-I/TL a compact choice for products combining touch sensing with actuator control. The CTMU measures charge time on touch pads with sub-nanosecond-class resolution, enabling robust buttons and sliders without an external touch controller. Because the same device simultaneously runs motor-control PWM and the ADC, a single 36-VTLA chip can implement, for example, a touch-controlled appliance with a BLDC fan: touch detection, UI state machine in 32KB Flash, and commutation loops on the 16 MIPS core. Peripheral Pin Select maps touch-capable and PWM pins independently, simplifying PCB routing on small industrial boards.
Recommended
Power Inverters and Electronic Ballasts
For DC-AC inverters and electronic ballast applications, the DSPIC33FJ32MC102-I/TL generates half-bridge PWM with hardware dead time and provides a fault input that instantly trips the MCPWM outputs on overcurrent events, protecting the power stage. The 10-bit ADC monitors DC bus voltage, output current, and lamp/sensor feedback synchronously with the PWM carrier, while the 16-bit DSP core at 16 MIPS implements frequency modulation, soft-start, and protection state machines within the 32KB Flash. The industrial temperature range and Tape and Reel supply suit high-volume ballast manufacturing, and the 5x5 mm QFN keeps the controller area small on compact lighting and inverter PCBs.
Recommended
Industrial Pumps, Fans, and Compressors
In appliances and HVAC equipment, the DSPIC33FJ32MC102-I/TL drives permanent-magnet pumps, fans, and small compressors with sensorless trapezoidal or FOC control. The 3.0-3.6V, -40C to +85C industrial rating covers harsh ambient conditions, and the hardware fault input implements overcurrent shutdown independently of software latency. The 32KB Flash holds commutation, PI control, and communication state machines together; UART or SPI routed via Peripheral Pin Select adds connectivity for speed commands and diagnostics. Single-chip integration of touch (CTMU), control (DSP core), and drive (MCPWM) reduces BOM count, making the 36-VTLA package a cost-effective fit for sealed pump and fan controller boards.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32MC102-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC101-I/TL | DSPIC33FJ16MC102-I/TL | DSPIC33FJ16MC101-I/TL | DSPIC33FJ32MC102-E/SO |
|---|---|---|---|---|---|
| Package | 36-VTLA (5x5 mm) QFN | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 36-VTLA (5x5 mm) - same | 28-pin SOIC - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS | 16-bit dsPIC33F, 16 MIPS |
| Flash Program Memory | 32 KB | 32 KB | 16 KB | 16 KB | 32 KB |
| Temperature Range | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (E grade) |
| Key Peripherals | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS |
Key Differentiators
- Full 32KB Flash in a 36-pin 5x5 mm QFN (vs DSPIC33FJ16MC102-I/TL)
- Extended temperature option in same die family (vs DSPIC33FJ32MC102-E/SO)
- Integrated CTMU and PPS in the MC102 variant (vs DSPIC33FJ32MC101-I/TL)
Design Notes
Supply the dsPIC33FJ32MC102-I/TL from a clean 3.0-3.6V rail (nominal 3.3V). Decouple every VDD/VSS pair with 0.1uF ceramic capacitors placed within 2 mm of the pins, plus one bulk 4.7-10uF capacitor near the device. The VCAP core-regulator capacitor specified in Microchip family datasheet 70000652f is mandatory for the internal LDO - a low-ESR ceramic of the datasheet-specified value must sit directly on the VCAP pin, otherwise the core may brown out during simultaneous PWM transitions.
On the 36-VTLA (5x5 mm) QFN, the exposed thermal/ground pad must be soldered to a grounded copper pour with an array of thermal vias; leaving the pad unsoldered degrades ground integrity and ADC accuracy. Keep the analog supply (AVDD) filtered through an RC or ferrite from the digital VDD rail, and route PWM traces away from analog sense lines. Synchronize ADC sampling to the PWM period (trigger from the MCPWM module) so current sampling occurs away from switching edges.
Data RAM on this part is limited to roughly 1-2KB depending on source; size FOC buffers and communication buffers conservatively and avoid large lookup tables that would exhaust the smaller figure. Peripheral Pin Select locks must be configured before enabling remappable peripherals, and the PWM Fault pins are enabled and asserted during any Reset event (per Microchip datasheet 70000652f) - design gate-drive circuitry so this default state is safe. Use the I-grade part only within -40C to +85C; for higher ambient, move to the E-grade variant.
Compliance Information
Compliance status not stated in the provided web data; verify on the Microchip product page for DSPIC33FJ32MC102 before export documentation.
