DSPIC33FJ32MC104-E/PT - 16-bit Motor Control DSC 44-TQFP | Microchip
MPN: DSPIC33FJ32MC104-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $3.1 | $310.00 |
| 500 | $2.78 | $1,390.00 |
| 1,000 | $2.45 | $2,450.00 |
DSPIC33FJ32MC104-E/PT Overview
A digital signal controller combines the computational core of a microcontroller with DSP-class arithmetic capability. In the power-management hierarchy, the dsPIC33FJ32MC104 sits inside the 16-bit DSC category that bridges general-purpose MCUs (such as the PIC24) and dedicated DSPs, making it a single-chip solution for control loops that need both fast multiply-accumulate math and flexible digital I/O.
Key features include the Motor Control PWM (MCPWM) module with complementary and independent outputs for inverter and BLDC/ACIM control, the Charge Time Measurement Unit (CTMU) for capacitive touch and precision time measurement, and Peripheral Pin Select (PPS), which allows many digital peripherals to be remapped onto available pins - a major advantage on this low-pin-count 44-terminal device. I/O pins sink or source 10 mA (6 mA pin-specific) with up to 16 mA or 12 mA available on non-standard VOH pins, and up to 20 pins support selectable open-drain and pull-up configurations.
Architecturally, the device is a CMOS 16-bit core with DSP engine extensions, multiple PGECx/PGEDx pairs for in-circuit serial programming and debugging (any pair works as long as ICSPCLK and ICSPDAT use the same pair), and support for seamless migration across the PIC24F, PIC24H and dsPIC33 families, protecting software investment as memory or feature needs grow.
Typical applications include BLDC and PMSM motor drives, AC induction motor control, digital power supplies (power factor correction, LLC controllers), and automotive auxiliary systems that benefit from AEC-Q100 qualification at low cost.
For design, connect every VDD and VSS pin pair and decouple each with a 0.1 uF ceramic capacitor placed close to the pins, per Microchip layout guidance.
This page synthesizes verified distributor and manufacturer data with drop-in alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ32MC104-E/PT — 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 DSPIC33FJ32MC104-E/PT (same form factor and footprint) — differing in Package, Core Architecture, External Interrupts, I/O Sink/Source Current, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC104-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP304-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.29 / Unit
View Datasheet →DSPIC33FJ16GP304-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ16MC304-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.98 / Unit
View Datasheet →DSPIC33FJ32MC104-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC (CMOS) |
| Program Memory (Flash) | 32 KB (11K x 24) |
| SRAM | 2 KB |
| Maximum Clock Frequency | 32 MHz |
| Supply Voltage Range | 3.0 V to 3.6 V (3.3 V nominal) |
| Package | 44-TQFP (PT), Gull Wing, surface mount |
| Operating Temperature Range | -40C to +125C (E grade) |
| Qualification | AEC-Q100 (Automotive) |
| Motor Control PWM (MCPWM) | Yes |
| Charge Time Measurement Unit (CTMU) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| I/O Sink/Source Current | 10 mA or 6 mA pin-specific; up to 16 mA or 12 mA on non-standard VOH pins |
| Open-Drain / Pull-up Pins | Up to 20 selectable |
| External Interrupts | 3 (two remappable via PPS) |
| In-Circuit Programming / Debug | Multiple PGECx/PGEDx pairs (e.g., PGEC3-PGED3) |
| 5V-Tolerant Input Pins | Yes (pin-specific) |
| Number of Pins / Terminals | 44 |
| Family Migration Path | Seamless from/to PIC24F, PIC24H, dsPIC33 |
DSPIC33FJ32MC104-E/PT 44-tqfp (pt), gull wing, surface mount Pin Configuration Guide
Pin configuration for DSPIC33FJ32MC104-E/PT (44-tqfp (pt), gull wing, surface mount 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 DSPIC33FJ32MC104-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32MC104-E/PT is suitable for 6 applications: BLDC / PMSM Motor Drives, AC Induction Motor Control, Digital Power Supplies (PFC / LLC), Automotive Auxiliary Motor Systems, Capacitive Touch Interfaces (CTMU), Embedded Control with Sensor Fusion.
BLDC / PMSM Motor Drives
The DSPIC33FJ32MC104-E/PT fits brushless DC and permanent-magnet synchronous motor control because its dedicated Motor Control PWM (MCPWM) module generates the complementary and dead-time-managed outputs an inverter bridge needs, and the 16-bit DSP core executes the field-oriented control math at its 32 MHz clock. The Peripheral Pin Select feature lets engineers map PWM, capture, and UART functions onto the most convenient of the 44 TQFP pins, simplifying gate-driver routing. In a typical topology the DSC reads rotor position from Hall sensors or a sensorless observer, computes duty cycles in the control loop, and drives six MOSFET gates through a three-phase driver IC. The AEC-Q100 E-grade temperature rating of -40C to +125C makes the part suitable for automotive pump, fan, and actuator drives where ambient temperatures exceed standard industrial limits.
Recommended
AC Induction Motor Control
For AC induction motors, the DSPIC33FJ32MC104-E/PT provides the computational throughput for v/f control and sensorless flux-observer algorithms while remaining an ultra-low-cost 16-bit device. The MCPWM module drives the three-phase inverter with complementary PWM outputs, and the 32 KB Flash accommodates the control firmware plus protection and communication routines without external memory. Peripheral Pin Select allows remapping of encoder or UART feedback onto available pins, which is valuable on this low-pin-count 44-TQFP footprint. I/O pins sink or source 10 mA (6 mA pin-specific) with up to 16 mA on non-standard VOH pins, sufficient to interface optocouplers and gate-driver logic directly. The E-grade automotive qualification extends usage into appliance and industrial drives that demand high-temperature reliability, and in-circuit debugging through any PGECx/PGEDx pair speeds control-loop tuning on the actual motor bench.
Recommended
Digital Power Supplies (PFC / LLC)
In digitally controlled power supplies, the DSPIC33FJ32MC104-E/PT can implement average-current-mode power factor correction and LLC burst-mode control using its high-resolution MCPWM outputs and fast 16-bit core. The 3.0V to 3.6V single-supply operation simplifies bias design from an auxiliary winding, and the CTMU provides precise time measurement that can support ripple-based or valley-switching schemes. Because the dsPIC33FJ32MC family offers seamless migration to and from PIC24 and larger dsPIC33 parts, a PFC design can be scaled to more Flash or channels without changing toolchains. The 20 selectable open-drain and pull-up pins ease level-shifting to isolated feedback circuits, and three external interrupts (two remappable via PPS) support fast fault shutdown. This application typically pairs the DSC with dedicated analog front ends or a companion digital-power dsPIC33FJ16GS device.
Recommended
Automotive Auxiliary Motor Systems
The DSPIC33FJ32MC104-E/PT is specifically positioned for automotive applications: it is AEC-Q100 qualified and rated from -40C to +125C, covering under-hood and near-engine environments where industrial-grade microcontrollers cannot survive. Typical uses include HVAC blower control, coolant and fuel pump drives, electronic throttle actuators, and headlamp leveling motors. The MCPWM module provides the complementary PWM outputs these brushed or BLDC actuators require, and the CTMU can be used for position sensing or capacitive diagnostics. Its 5V-tolerant input pins (pin-specific) simplify interfacing with legacy 5V automotive sensor outputs, while the 3.3V core keeps power consumption low. Using any PGECx/PGEDx pair for in-circuit programming enables end-of-line flashing of calibration data on the production line without removing the 44-TQFP device from the assembled ECU board.
Recommended
Capacitive Touch Interfaces (CTMU)
The integrated Charge Time Measurement Unit (CTMU) makes the DSPIC33FJ32MC104-E/PT a cost-effective host for capacitive touch keys, sliders, and proximity sensing embedded in appliance and industrial panels. The CTMU is a precision constant-current source with edge-triggered timing, allowing charge-based measurement of capacitance changes on I/O pins without an external touch controller. Because the same 16-bit DSC also runs the motor control or power conversion firmware, a single 44-TQFP device can replace a separate touch IC plus MCU combination, reducing BOM cost and board area. Peripheral Pin Select lets designers assign CTMU-related and auxiliary digital functions to optimal pins, and up to 20 selectable open-drain/pull-up pins support LED indicators alongside the touch electrodes. Response firmware typically uses oversampling and drift compensation stored comfortably within the 32 KB Flash and 2 KB SRAM.
Recommended
Embedded Control with Sensor Fusion
Beyond pure motor control, the DSPIC33FJ32MC104-E/PT serves general embedded sensing nodes that combine analog measurement with real-time digital filtering. The 16-bit DSP core executes multiply-accumulate operations needed for IIR/FIR filtering of ADC data, while the CTMU supports precise time-interval and resistance measurement for sensor excitation. With 32 KB Flash and 2 KB SRAM, the device can hold a small real-time kernel, filtering routines, and a UART or SPI protocol stack for cloud or PLC connectivity. Peripheral Pin Select maps communication peripherals to whichever of the 44 TQFP pins the PCB routing favors, and 5V-tolerant inputs connect directly to many industrial sensor outputs. Multiple PGECx/PGEDx debug pairs allow firmware field updates through ICSP, and the extended -40C to +125C E-grade rating permits deployment in outdoor and unconditioned industrial environments.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32MC104-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC104-I/PT | DSPIC33FJ32GP304-I/PT | DSPIC33FJ16GP304-I/PT | DSPIC33FJ16MC304-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (PT) | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 32 KB | 32 KB | 32 KB | 16 KB | 16 KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Motor Control PWM (MCPWM) | Yes | Yes | No (GP peripheral set) | No (GP peripheral set) | Yes (MC variant) |
| Peripheral Pin Select (PPS) | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended -40C to +125C automotive temperature grade (vs DSPIC33FJ32MC104-I/PT)
- Dedicated Motor Control PWM (MCPWM) module (vs DSPIC33FJ32GP304-I/PT)
- Peripheral Pin Select (PPS) pin remapping (vs DSPIC33FJ16GP304-I/PT)
- Trade-off: 2 KB SRAM ceiling (vs DSPIC33FJ32GP304-I/PT)
Design Notes
Connect every VDD pin to the 3.3V rail and every VSS pin to ground - the dsPIC33FJ32MC104 has multiple power pin pairs and none may be left floating. Decouple each VDD/VSS pair with a 0.1 uF ceramic capacitor placed within 2 mm of the pin, plus one bulk 4.7 uF to 10 uF capacitor near the device. Per Microchip programming guidance (northernsoftware.com dsPIC33FJ32MC104 support notes), all VSS and VDD pins must also be connected during ICSP programming and debugging.
The ICSP clock and data pins must come from the same PGECx/PGEDx pair: if PGEC2 is wired to the programmer ICSPCLK, PGED2 must carry ICSPDAT. Mixing pins from different pairs is the most common bring-up failure on this family. Route the selected PGECx/PGEDx pair to a standard programming header and keep it short and free of high-di/dt motor-drive traces to avoid corruption during in-circuit debug.
When driving an inverter bridge, keep the MCPWM outputs away from oscillator and analog inputs, and route them with series resistors (22R to 100R) if gate-driver inputs are directly driven, to limit ringing. Peripheral Pin Select (PPS) lets you move digital functions, so assign PWM pins away from crystal and CTMU-sensitive pins during layout. Place the crystal and its load capacitors close to the OSC pins with a ground guard.
Estimated: at 32 MHz with moderate I/O loading the dsPIC33FJ32MC104 typically dissipates well under 0.5 W, so the 44-TQFP (theta_JA on the order of 80-100 C/W, per datasheet thermal tables) remains far below the +125C junction limit at +85C ambient. Verify with your own current consumption measurement; if the E-grade part must operate at +125C ambient, keep total dissipation low and add ground-plane copper under the package.
Compliance Information
Distributor listing (Hotenda) explicitly identifies the part as Automotive, AEC-Q100 qualified. RoHS/REACH/lead-free status not stated in the provided web data - verify on the Microchip product page or packaging datasheet.
