PIC24FJ16MC102-I/ML - 16-bit 16 MIPS 16KB Flash Motor Control MCU | Microchip
MPN: PIC24FJ16MC102-I/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.45 | $3.45 |
| 10 | $3.1 | $31.00 |
| 100 | $2.74 | $274.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC24FJ16MC102-I/ML Overview
A 16-bit microcontroller (MCU) is a single-chip processor with a 16-bit data path that delivers higher arithmetic precision and code density than 8-bit devices while keeping cost, power, and complexity lower than 32-bit ARM Cortex-M parts. Within the broader PIC24F family, motor-control derivatives such as the PIC24FJ16MC102 add PWM, ADC triggering, and fault inputs so a single chip can drive a three-phase BLDC or PMSM motor. In a typical system hierarchy this device sits below the application layer and above the power stage, coordinating gate drivers, current sense amplifiers, and position feedback.
Key features include 6 channels of 10-bit ADC with selectable conversion triggers, up to 6 PWM channels with complementary or independent output modes, multiple 16-bit timers, a Real-Time Clock/Calendar, and an integrated UART/SPI/I2C serial engine. PPS allows most digital peripherals to be reassigned to almost any I/O pin, simplifying PCB routing on dense motor-control boards.
The PIC architecture combines a modified Harvard CPU with a 24-bit instruction word and 16-bit data path, delivering deterministic interrupt latency and single-cycle MAC operations that simplify digital filter code for sensorless control loops. The CTMU enables precise time-of-flight measurement for capacitive touch or temperature sensing using only an external resistor.
Typical applications include BLDC/PMSM fan and pump controllers, low-voltage hobby servos, sensorless trapezoidal drives, small appliance motor boards, and low-cost position-control systems. The 28-QFN footprint is also well suited to space-constrained IoT nodes that still need deterministic real-time behavior.
When designing with this part, place a 10 uF plus 0.1 uF decoupling pair on each VDD pin and keep the analog AVdd trace short and quiet to preserve ADC accuracy. The PPS remapping registers must be unlocked and configured after each POR - a common pitfall when porting firmware between PIC24F variants.
Drop-in alternatives for PIC24FJ16MC102-I/ML — 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 PIC24FJ16MC102-I/ML (same form factor and footprint) — differing in ADC, Package, Operating Temperature, RoHS Status, Operating Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ32MC102-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24FJ16MC101-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ16MC104-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
dsPIC33FJ16MC102-I/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC24FJ32MC104-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.65 / Unit
View Datasheet →PIC24FJ16MC102-I/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit PIC24F (modified Harvard) |
| CPU Speed | 16 MIPS (max 32 MHz operation) |
| Program Memory (Flash) | 16 KB (5.5K x 24 words) |
| Data RAM | 1 KB |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| ADC | 10-bit, up to 6 channels |
| PWM Channels | Up to 6 (MCPWM) |
| Motor Control Peripherals | MCPWM, CTMU, QEI, PPS |
| Package | 28-QFN (6x6 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Programming/Debug | ICSP via PGECx/PGEDx pairs |
PIC24FJ16MC102-I/ML Pin Configuration
| Pin 1 | RA0 — Analog/Digital I/O |
| Pin 2 | RA1 — Analog/Digital I/O |
| Pin 3 | RA2 — Analog/Digital I/O |
| Pin 4 | RA3 — Analog/Digital I/O |
| Pin 5 | RA4 — Analog/Digital I/O |
| Pin 6 | AVDD — Analog supply voltage |
| Pin 7 | AVSS — Analog ground |
| Pin 8 | OSCI — Crystal oscillator input |
| Pin 9 | OSCO — Crystal oscillator output |
| Pin 10 | RB0 — Digital I/O |
| Pin 11 | RB1 — Digital I/O |
| Pin 12 | RB2 — Digital I/O |
| Pin 13 | RB3 — Digital I/O |
| Pin 14 | VSS — Ground |
| Pin 15 | VDD — Digital supply voltage |
| Pin 16 | RB4 — Digital I/O |
| Pin 17 | RB5 — Digital I/O |
| Pin 18 | RB6 — Digital I/O (ICSPCLK) |
| Pin 19 | RB7 — Digital I/O (ICSPDAT) |
| Pin 20 | RB8 — Digital I/O |
| Pin 21 | RB9 — Digital I/O |
| Pin 22 | RC0 — Digital I/O |
| Pin 23 | RC1 — Digital I/O |
| Pin 24 | RC2 — Digital I/O |
| Pin 25 | RC3 — Digital I/O |
| Pin 26 | RC4 — Digital I/O |
| Pin 27 | VSS — Ground |
| Pin 28 | VDD — Digital supply voltage |
Typical Applications
PIC24FJ16MC102-I/ML is suitable for 7 applications: BLDC / PMSM Fan and Pump Motor Control, Sensorless Trapezoidal Drive for Small Appliances, Low-Voltage Hobby Servo and Drone ESC, Position Control with Quadrature Encoder Input, IoT Node with Capacitive Touch Interface, Battery-Powered Power Tool Controller, Precision Industrial Pump with PFC.
BLDC / PMSM Fan and Pump Motor Control
The PIC24FJ16MC102's 6-channel MCPWM with programmable dead-time directly drives three-phase gate drivers for BLDC fans and pumps without external logic. The 10-bit ADC samples back-EMF or shunt current for sensorless commutation at the 16 MIPS CPU's real-time budget. Using 28-QFN package, the entire controller fits on a sub-25 mm board for compact appliance designs.
Recommended
Sensorless Trapezoidal Drive for Small Appliances
The CTMU and 10-bit ADC together enable BEMF zero-cross detection for low-cost sensorless trapezoidal commutation in appliance motors such as refrigerator fans or HVAC blowers. With 16 KB Flash and 1 KB RAM, the device holds the entire commutation table and 6-step state machine on-chip. The industrial -40 C to +85 C rating supports under-hood or outdoor equipment environments.
Recommended
Low-Voltage Hobby Servo and Drone ESC
The 16 MIPS CPU at 32 MHz drives one-shot and D-Shot protocols from hobby RC receivers while the MCPWM generates precise center-aligned servo pulses. PPS lets UART, SPI, and I2C peripherals be remapped to any I/O pin for compact 4-layer ESC PCBs. The 28-QFN 6x6 mm footprint fits inside a 20 mm x 20 mm brushless ESC typical of micro-drones.
Recommended
Position Control with Quadrature Encoder Input
The PIC24FJ16MC102's QEI peripheral hardware-decodes quadrature encoder signals, freeing the CPU for the closed-loop PID. With PPS, the QEI can be assigned to any two I/O pins, simplifying PCB layout. Combined with the MCPWM, the part forms a complete digital position servo for robotics, CNC axes, and valve actuators.
Recommended
IoT Node with Capacitive Touch Interface
The CTMU measures charge time on RC networks, enabling up to 13 capacitive touch buttons without an external touch controller. The PIC24FJ16MC102 can wake on touch, run a small TCP/IP stack over UART Wi-Fi, and gate an external 3.3V LDO for sub-1 mA sleep. The 28-QFN package suits small smart-home panels and appliance front panels.
Recommended
Battery-Powered Power Tool Controller
Industrial temperature rating and 16 MIPS performance make the PIC24FJ16MC102 suitable for 18V cordless drill and impact-driver motor control. The MCPWM supports brake and coast modes required for safety, while the ADC monitors battery current for stall protection. The QFN package withstands high-vibration tool environments when properly PCB-staked.
Recommended
Precision Industrial Pump with PFC
The PIC24FJ16MC102 can run a small PFC algorithm and pump-motor trapezoidal control from a single die, reducing BOM cost. Its 16 MIPS handles PFC multiplication loops at 32 kHz switching while the MCPWM drives the pump inverter. 28-QFN footprint allows a compact DIN-rail-mountable controller.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ16MC102-I/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ32MC102-I/ML | PIC24FJ16MC101-I/ML | PIC24FJ16MC104-I/ML | dsPIC33FJ16MC102-I/ML | PIC24FJ32MC104-I/ML |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6) | 28-QFN (6x6) - same | 20-pin SSOP/SOIC | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same |
| Flash Memory | 16 KB | 32 KB | 16 KB | 16 KB | 16 KB | 32 KB |
| RAM | 1 KB | 2 KB | 1 KB | 1 KB | 1 KB | 2 KB |
| MIPS (CPU Speed) | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| DSP Engine | No | No | No | No | Yes (dsPIC33 DSP) | No |
| Motor Control PWM | Yes (6 channels) | Yes (6 channels) | Yes (6 channels) | Yes (6 channels) | Yes (6 channels) | Yes (6 channels) |
Key Differentiators
- Best cost-to-feature ratio in the PIC24F motor-control family (vs PIC24FJ16MC101)
- Pure 16-bit control core without DSP engine overhead (vs dsPIC33FJ16MC102)
- Double Flash/RAM upgrade path in identical 28-QFN footprint (vs PIC24FJ32MC102-I/ML)
Design Notes
Place a 10 uF bulk capacitor plus a 0.1 uF ceramic decoupling capacitor as close as possible to each VDD pin of the PIC24FJ16MC102-I/ML. The AVdd/AVss pair should have its own 10 uF + 0.1 uF pair to keep ADC reference clean. Tie unused I/O to defined logic levels (not floating) to minimize supply current and unwanted interrupt events. This device is sensitive to VDD ramp time - ensure monotonic power-on to avoid incomplete Flash programming.
The 28-QFN (6x6) package has a center exposed pad that must be soldered to a copper pad for thermal and electrical performance; ground this pad to VSS for best ADC noise. Keep analog traces (AVdd reference, ADC inputs) short and away from PWM switching traces to avoid capacitive coupling. Use a continuous ground plane on layer 2 to provide a low-impedance return path for high-di/dt PWM edges.
Peripheral Pin Select (PPS) registers are unlocked only after a specific write sequence and must be reconfigured after every POR - this is the #1 firmware porting pitfall between PIC24F variants. The 16 KB Flash part does not support live update; design the bootloader to fit in a protected Flash region. The 10-bit ADC requires the analog input to remain at the pin for at least 1 TAD - wait states are commonly forgotten in fast loop code.
The PIC24FJ16MC102 in 28-QFN can dissipate roughly 500 mW at room temperature with the center pad soldered to a 1 sq-in copper pour on a 4-layer board (theta-JA approximately 40 C/W). Industrial grade parts are rated to 85 C ambient; derate 10 C/W if using a smaller 2-layer board or no center-pad solder connection. For high-PWM-switching designs, monitor the thermal envelope during worst-case fault conditions.
Compliance Information
RoHS compliance per Microchip product page. Industrial temperature grade only; automotive variants must be sourced separately. Reach compliance assumed per Microchip policy.
