PIC24FJ32MC104T-I/TL - 16-bit 32KB Flash Motor MCU | Microchip
MPN: PIC24FJ32MC104T-I/TL ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $3.15 | $315.00 |
| 500 | $2.78 | $1,390.00 |
| 1,000 | $2.42 | $2,420.00 |
PIC24FJ32MC104T-I/TL Overview
What is a 16-bit motor-control MCU? It is a microcontroller class positioned between general-purpose 8-bit/16-bit MCUs and high-performance DSP MCUs (dsPIC33). It combines a 16-bit modified Harvard CPU, deterministic interrupt latency, and specialized motor-control PWM with complementary outputs and programmable dead-time, optimized for low-cost, low-pin-count variable-frequency drives. The PIC24FJ MC family belongs to the broader PIC microcontroller family and PIC24F sub-family, occupying the power-management and motor-control segment of Microchip's 16-bit portfolio.
Key features of the PIC24FJ32MC104T-I/TL include 32 KB Flash, 2 KB SRAM, up to 16 MIPS at 32 MHz, three MCPWM channels with complementary outputs and dead-time control, three on-chip analog comparators, a 10-bit ADC up to 1.1 Msps with up to 14 channels, CTMU for capacitive touch and current measurement, RTCC, two I2C, two SPI, two UART, and Peripheral Pin Select (PPS) for flexible signal routing on the limited 44-pin pinout.
The device uses a 16-bit modified Harvard CPU with hardware Multiply/Divide and DSP-friendly instructions, supported by a flexible 32 MHz internal oscillator and PLL. Low-power features include Idle and Sleep modes with multiple wake-up sources, plus the nanoWatt XLP extreme-low-power technology, making it suitable for battery-backed motor-control applications such as cordless tools or smart fans.
Typical applications include BLDC/PMSM sensorless fan and pump controllers, low-voltage battery-operated drives for portable appliances, three-phase small-motor inverter control, electronic speed controllers (ESCs) for RC and hobby drives, LED lighting drivers with dimming, and white-goods motor-control subsystems (washing machines, dishwasher pumps).
When designing with this device, allocate PCB area for the exposed thermal pad and four-layer stack-up to dissipate heat at high PWM switching frequencies. The PPS feature lets you reassign digital peripherals to nearly any I/O pin, which simplifies PCB routing on this 44-pin TQFP-style VTLA package, but verify pin assignments in the datasheet pinout table before final layout.
This page synthesizes distributor pricing, same-brand drop-in alternatives from the PIC24FJ MC family, and practical design notes not consolidated in the manufacturer datasheet, helping engineers shorten the selection cycle for 16-bit motor-control designs.
Drop-in alternatives for PIC24FJ32MC104T-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 PIC24FJ32MC104T-I/TL (same form factor and footprint) — differing in Package, ADC, Core Architecture, Motor Control PWM (MCPWM), Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ32MC104-I/TL
✅ Drop-In✓ In Stock
$2.15 / Unit
View Datasheet →PIC24FJ32MC104T-E/TL
✅ Drop-In✓ In Stock
$2.47 / Unit
View Datasheet →PIC24FJ32MC104T-I/TL Maximum Ratings & Electrical Characteristics
| Product Family | PIC24FJ MC (Motor Control) |
| Core Architecture | 16-bit modified Harvard |
| Program Memory (Flash) | 32 KB |
| Data Memory (SRAM) | 2 KB |
| CPU Speed | 16 MIPS |
| Operating Frequency | Up to 32 MHz |
| Package | 44-pin VTLA (TL) Tape & Reel |
| Temperature Grade | Industrial (-40C to +85C), 'I' suffix |
| Motor Control PWM (MCPWM) | 3 modules |
| Analog Comparators | 3 |
| ADC | 10-bit, up to 1.1 Msps, up to 14 channels |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Communication Interfaces | 2x UART, 2x SPI, 2x I2C |
| Peripheral Pin Select (PPS) | Yes |
| Low-Power Technology | nanoWatt XLP |
| Supply Voltage | 2.0 V to 3.6 V |
| RoHS Status | Compliant |
PIC24FJ32MC104T-I/TL Pin Configuration
| Pin 1 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 1 function |
| Pin 2 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 2 function |
| Pin 3 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 3 function |
| Pin 4 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 4 function |
| Pin 5 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 5 function |
| Pin 6 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 6 function |
| Pin 7 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 7 function |
| Pin 8 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 8 function |
| Pin 9 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 9 function |
| Pin 10 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 10 function |
| Pin 11 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 11 function |
| Pin 12 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 12 function |
| Pin 13 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 13 function |
| Pin 14 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 14 function |
| Pin 15 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 15 function |
| Pin 16 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 16 function |
| Pin 17 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 17 function |
| Pin 18 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 18 function |
| Pin 19 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 19 function |
| Pin 20 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 20 function |
| Pin 21 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 21 function |
| Pin 22 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 22 function |
| Pin 23 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 23 function |
| Pin 24 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 24 function |
| Pin 25 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 25 function |
| Pin 26 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 26 function |
| Pin 27 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 27 function |
| Pin 28 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 28 function |
| Pin 29 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 29 function |
| Pin 30 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 30 function |
| Pin 31 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 31 function |
| Pin 32 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 32 function |
| Pin 33 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 33 function |
| Pin 34 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 34 function |
| Pin 35 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 35 function |
| Pin 36 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 36 function |
| Pin 37 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 37 function |
| Pin 38 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 38 function |
| Pin 39 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 39 function |
| Pin 40 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 40 function |
| Pin 41 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 41 function |
| Pin 42 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 42 function |
| Pin 43 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 43 function |
| Pin 44 | [DATA_NEEDED] — Refer to datasheet Section 2 pin diagram for exact pin 44 function |
Typical Applications
PIC24FJ32MC104T-I/TL is suitable for 6 applications: Sensorless BLDC Fan Control, Cordless Power Tool Motor Drive, White Goods Pump Controller, Hobby Drone / RC ESC, LED Driver with Dimming, Portable Medical Pump.
Sensorless BLDC Fan Control
Drives a 3-phase sensorless BLDC fan using the integrated 3 MCPWM channels with complementary outputs and dead-time insertion. The PIC24FJ32MC104T-I/TL's 3 analog comparators enable BEMF zero-cross detection at low BOM cost, while the CTMU allows precise current sensing for torque limiting. At 16 MIPS, the device executes sensorless trapezoidal or field-oriented control algorithms in real time without external DSP, making it ideal for cooling fans, server fans, and HVAC blower motors. PPS lets the designer remap PWM outputs and comparator inputs on the 44-pin VTLA footprint, simplifying 4-layer PCB layout.
Recommended
Cordless Power Tool Motor Drive
Battery-operated cordless drill or screwdriver motor controller, using the PIC24FJ32MC104T-I/TL's MCPWM channels to switch a single or 3-phase BLDC motor from a Li-ion pack. The nanoWatt XLP low-power Sleep mode reduces quiescent current between trigger pulls, extending battery life. The 32 KB Flash holds complex torque compensation and battery management firmware. Industrial -40C to +85C operation handles garage and outdoor conditions, while the 44-pin VTLA package fits compact tool-grip enclosures.
Recommended
White Goods Pump Controller
Drives a small PMSM or BLDC pump in washing machines, dishwashers, or coffee machines using the PIC24FJ32MC104T-I/TL's integrated MCPWM and RTCC. The RTCC enables time-based wash cycle scheduling without an external RTC chip, reducing BOM cost. The 10-bit ADC monitors water level sensors and motor current, while the CTMU supports capacitive user-interface buttons on the appliance front panel. Industrial temperature grade and 32 KB Flash support complex IEC 60730 Class B self-test firmware for home appliance safety compliance.
Recommended
Hobby Drone / RC ESC
Electronic speed controller for hobby-grade quadcopter or RC brushless motors, using the PIC24FJ32MC104T-I/TL MCPWM channels at high switching frequency. The 16 MIPS performance runs fast commutation loops while PPS lets the engineer assign UART control inputs from any GPIO. The CTMU supports fast throttle current measurement, and the small 44-pin VTLA footprint keeps ESC board area below 25x25 mm - critical for quadcopter weight budget. The 32 KB Flash is sufficient for active braking and reverse-rotation firmware.
Recommended
LED Driver with Dimming
PWM-dimmable LED driver controller, using the PIC24FJ32MC104T-I/TL's MCPWM channels and high-speed ADC to sense LED current and adjust duty cycle for analog or logarithmic dimming. The RTCC enables time-of-day color-temperature shifting, while the I2C bus connects to ambient light sensors or DALI bridges. The 16 MIPS core supports smooth 0.1% dimming resolution, and PPS remaps PWM outputs to drive external MOSFETs on the small 44-pin VTLA footprint. nanoWatt XLP reduces standby consumption for energy-star compliance.
Recommended
Portable Medical Pump
Battery-powered infusion or insulin pump using the PIC24FJ32MC104T-I/TL as the motor-control MCU. The MCPWM channels drive a precision stepper or BLDC pump motor at low RPM with high torque accuracy. CTMU measures dosage with microampere current feedback, while the 10-bit ADC monitors battery voltage. The 32 KB Flash holds validated medical firmware, and the industrial temperature grade ensures stable operation in hospital and home environments. PPS simplifies PCB layout in the small wearable enclosure.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ32MC104T-I/TL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ32MC104-I/TL | PIC24FJ32MC104T-E/TL | PIC24FJ32MC104T-I/PT | PIC24FJ32MC104-I/PT | PIC24FJ32MC104T-E/PT |
|---|---|---|---|---|---|---|
| Package | 44-pin VTLA (TL) Tape & Reel | 44-pin VTLA (TL) tray | 44-pin VTLA (TL) Tape & Reel | 44-pin TQFP (PT) | 44-pin TQFP (PT) tray | 44-pin TQFP (PT) Tape & Reel |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Data Memory (SRAM) | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| CPU Speed | 16 MIPS at 32 MHz | 16 MIPS at 32 MHz | 16 MIPS at 32 MHz | 16 MIPS at 32 MHz | 16 MIPS at 32 MHz | 16 MIPS at 32 MHz |
| Temperature Grade | Industrial -40C to +85C (I) | Industrial -40C to +85C (I) | Extended -40C to +125C (E), AEC-Q100 | Industrial -40C to +85C (I) | Industrial -40C to +85C (I) | Extended -40C to +125C (E), AEC-Q100 |
| MCPWM Channels | 3 | 3 | 3 | 3 | 3 | 3 |
| Analog Comparators | 3 | 3 | 3 | 3 | 3 | 3 |
Key Differentiators
- Integrated 3 MCPWM channels designed for 3-phase motor control (vs PIC24FJ64GA104-I/PT)
- 32 KB Flash and 2 KB SRAM balance vs higher-density general-purpose MCU (vs PIC24FJ128GA006-I/PT)
- Industrial -40C to +85C with optional AEC-Q100 variant for automotive (vs PIC24FJ32MC104T-E/TL)
Design Notes
The 44-pin VTLA 'TL' package is a leadless surface-mount type that requires an accurate land pattern from the Microchip package specification document. Use at least 4-layer stack-up with a continuous ground plane beneath the package to dissipate switching noise from the MCPWM outputs. Place at least one 0.1 uF decoupling capacitor per VDD/AVDD pin within 2 mm of the lead, plus a 10 uF bulk capacitor at the package corner. Verify land pattern from Microchip's 'VTLA-44 Package Outline' before final layout.
Operate the PIC24FJ32MC104T-I/TL from a regulated 3.3 V supply in the range 2.0 V to 3.6 V. During PWM switching, high di/dt currents on the MCPWM outputs can couple into the AVDD supply and corrupt ADC measurements. Decouple AVDD with a 10 ohm ferrite bead and a separate 10 uF + 0.1 uF pair from the digital VDD, to keep the analog reference clean for BEMF sensing. Add a bulk capacitor at the MCPWM ground return to prevent ground bounce at switching transients.
The 44-pin VTLA package exposes fewer dedicated peripheral pins than larger packages, so most peripherals must be assigned via Peripheral Pin Select (PPS). Lock PPS assignments early in firmware initialization, before enabling peripherals, to avoid spurious signals on default-mapped pins. For high-frequency SPI or UART signals above 10 MHz, route on the top layer over a continuous ground reference, and keep traces below 1/20 of the rise time to minimize reflection. PPS lock bits must be cleared with the unlock sequence from Section 10 of the datasheet.
Compliance Information
RoHS compliant per Microchip product page. The I (industrial) variant is NOT AEC-Q100 qualified - choose PIC24FJ32MC104T-E/TL for AEC-Q100 automotive designs.
