PIC24FJ16MC102T-I/SS - 16-bit 16 MIPS 16KB Flash Motor Control MCU | Microchip
MPN: PIC24FJ16MC102T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.32 | $13.20 |
| 100 | $1.18 | $118.00 |
| 500 | $1.05 | $525.00 |
| 1,000 | $0.94 | $940.00 |
| 3,000 | $0.86 | $2,580.00 |
PIC24FJ16MC102T-I/SS Overview
What is a motor-control MCU? A motor-control microcontroller is a class of embedded processor optimized for driving brushed DC, brushless DC (BLDC), stepper, and switched reluctance motors. These MCUs integrate dedicated peripherals such as multi-channel PWM modules, high-resolution timers, fast ADCs for current sensing, and input-capture blocks for rotor position feedback. Motor-control MCUs sit inside the broader hierarchy: microcontroller -> embedded processor -> semiconductor IC, and within Microchip's portfolio they form the PIC24F MC family, with the dsPIC33 family providing higher-performance DSP-extended variants.
Key features include a 6-channel 10-bit ADC for analog feedback, three 16-bit and one 32-bit timer/counter, a Charge Time Measurement Unit (CTMU) for capacitive touch or temperature sensing, Peripheral Pin Select (PPS) for flexible I/O mapping, and up to 21 general-purpose I/O pins. The integrated Motor Control PWM (MCPWM) module supports complementary outputs with programmable dead time, hardware fault input, and center-aligned or edge-aligned modes - all essential for safe half-bridge and full-bridge drive stages.
Typical applications include low-cost BLDC ceiling fans, small appliance pump controllers, drone ESCs, HVAC damper drivers, and low-voltage sensorless FOC platforms where the MCU must execute a real-time control loop in software. The 16 MIPS headroom and CTMU simplify sensor integration in space-constrained designs. Designers should budget Flash for a bootloader or field firmware updates, since 16 KB fills quickly when adding a full motor-control state machine.
Drop-in alternatives for PIC24FJ16MC102T-I/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 PIC24FJ16MC102T-I/SS (same form factor and footprint) — differing in Package, ADC, Core Architecture, Timers, Program Memory (Flash).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC24FJ16MC102-I/SS
✅ Drop-In✓ In Stock
$2.21 / Unit
View Datasheet →PIC24FJ16MC101-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC24FJ32MC102-I/SS
✅ Drop-In✓ In Stock
$1.82 / Unit
View Datasheet →PIC24FJ16MC102T-E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC24FJ16MC102T-I/SO
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC24FJ16MC102T-I/ML
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC24FJ16MC102T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC24F (16-bit modified Harvard) |
| Maximum CPU Speed | 16 MIPS (32 MHz core clock) |
| Program Memory (Flash) | 16 KB (5.5K x 24 words) |
| Data SRAM | 1 KB |
| Package | 28-pin SSOP (5.30 mm body) |
| Operating Voltage (VDD) | 3.0 V to 5.5 V |
| Operating Temperature | -40 °C to +85 °C (industrial, 'I' suffix) |
| ADC | 10-bit, up to 6 channels |
| Timers | 3 x 16-bit + 1 x 32-bit |
| Motor Control PWM (MCPWM) | Yes, with complementary outputs and fault input |
| CTMU (Charge Time Measurement Unit) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| GPIO Pins | Up to 21 |
| Packaging Form | Tape & Reel ('T' suffix) |
| RoHS Status | Compliant |
| MSL Level | 1 |
PIC24FJ16MC102T-I/SS Pin Configuration
| Pin 1 | RA0 — Port A bit 0 / analog input / PPS-remappable |
| Pin 2 | RA1 — Port A bit 1 / analog input / PPS-remappable |
| Pin 3 | RA2 — Port A bit 2 / analog input / PPS-remappable |
| Pin 4 | RA3 — Port A bit 3 / analog input / PPS-remappable |
| Pin 5 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
| Pin 6 | VSS — Ground reference |
| Pin 7 | OSCI — External oscillator input or NC if internal RC used |
| Pin 8 | OSCO — External oscillator output or NC if internal RC used |
| Pin 9 | RA4 — Port A bit 4 / analog input / PPS-remappable |
| Pin 10 | RA5 — Port A bit 5 / analog input / PPS-remappable |
| Pin 11 | RB0 — Port B bit 0 / programming clock / PPS-remappable |
| Pin 12 | RB1 — Port B bit 1 / programming data / PPS-remappable |
| Pin 13 | RB2 — Port B bit 2 / PPS-remappable |
| Pin 14 | RB3 — Port B bit 3 / PPS-remappable |
| Pin 15 | RA6 — Port A bit 6 / PPS-remappable |
| Pin 16 | RA7 — Port A bit 7 / PPS-remappable |
| Pin 17 | RB4 — Port B bit 4 / SDA1 / PPS-remappable |
| Pin 18 | RB5 — Port B bit 5 / SCL1 / PPS-remappable |
| Pin 19 | RB6 — Port B bit 6 / ICS PGC / PPS-remappable |
| Pin 20 | RB7 — Port B bit 7 / ICS PGD / PPS-remappable |
| Pin 21 | RC0 — Port C bit 0 / analog input / PPS-remappable |
| Pin 22 | RC1 — Port C bit 1 / analog input / PPS-remappable |
| Pin 23 | RC2 — Port C bit 2 / analog input / PPS-remappable |
| Pin 24 | RC3 — Port C bit 3 / analog input / PPS-remappable |
| Pin 25 | RC4 — Port C bit 4 / PPS-remappable |
| Pin 26 | RC5 — Port C bit 5 / PPS-remappable |
| Pin 27 | RC6 — Port C bit 6 / PPS-remappable |
| Pin 28 | RC7 — Port C bit 7 / PPS-remappable |
Typical Applications
PIC24FJ16MC102T-I/SS is suitable for 6 applications: BLDC Ceiling Fan Controller, Small Appliance Pump Drive (Dishwasher / Washing Machine), Drone Electronic Speed Controller (ESC), HVAC Damper and Valve Actuator, Industrial Sensorless Blower, Low-Voltage Battery Tool Motor Control.
BLDC Ceiling Fan Controller
The PIC24FJ16MC102T-I/SS is well matched to BLDC ceiling fan controllers because its 16 MIPS core can execute sensorless trapezoidal commutation at switching frequencies up to 20 kHz while leaving headroom for user-interface code. The dedicated Motor Control PWM (MCPWM) peripheral generates complementary gate-drive signals with programmable dead time, eliminating external logic for half-bridge FET control. The 6-channel 10-bit ADC samples back-EMF zero-crossing signals to estimate rotor position without Hall sensors. Its SSOP-28 package fits inside the small can housing of modern low-profile ceiling fans, and the industrial -40C to +85C rating covers attic and tropical-climate installations.
Recommended
Small Appliance Pump Drive (Dishwasher / Washing Machine)
For dishwasher wash pumps and washing-machine drain pumps, the PIC24FJ16MC102T-I/SS offers the right blend of motor-control peripherals and ruggedness. Its MCPWM supports fault-input shutdown that immediately disables outputs on over-current, protecting the power stage from stall conditions. The integrated CTMU enables water-level sensing or temperature monitoring without a separate analog front end, reducing BOM cost. With 16 KB Flash, firmware fits a basic sensorless BLDC or brushed-DC control algorithm plus fault logging. The 28-SSOP footprint allows hand-solder-friendly prototypes that survive the moisture and vibration of appliance deployment.
Recommended
Drone Electronic Speed Controller (ESC)
Small drone ESCs benefit from the PIC24FJ16MC102T-I/SS's compact SSOP-28 package and 16 MIPS throughput, which is sufficient for 50-100 Hz update-rate FOC or trapezoidal commutation at high RPM. The 6-channel ADC provides current, voltage, and temperature telemetry in a single conversion sequence, while the 32-bit timer enables precise RPM measurement via input capture. PPS flexibility lets designers route PWM outputs to any pin for optimal PCB layout. For racing drones demanding sub-microsecond loop times, stepping up to a dsPIC33 is recommended; for toy-class quads, this part hits the BOM cost target.
Recommended
HVAC Damper and Valve Actuator
In HVAC zoning dampers and thermostatic radiator valves, the PIC24FJ16MC102T-I/SS drives small brushed-DC or stepper gear-motors with its flexible PWM and timer resources. The CTMU enables touch-button user interfaces for thermostat-style products without external capacitance-sensing ICs. Operating from 3.0 V to 5.5 V, it can share the motor bus with proper filtering, simplifying power-tree design. The 1 KB SRAM accommodates small protocol stacks for Modbus or proprietary HVAC-bus links. Its industrial temperature rating ensures reliable operation above ceilings and in unheated plenums.
Recommended
Industrial Sensorless Blower
Industrial blower fans used in server-room ventilation, welding fume extraction, and medical equipment demand continuous sensorless operation with high reliability. The PIC24FJ16MC102T-I/SS executes back-EMF zero-cross detection at 16 MIPS, easily handling commutation loops at 25 kHz PWM with margin for fault diagnostics. Hardware fault inputs protect against output short circuits, and the 10-bit ADC is sufficient for closed-loop speed control via PWM duty trim. The SSOP-28 package's 0.65 mm pitch keeps the board area compact inside blower housings, and its industrial temp range covers most indoor industrial environments.
Recommended
Low-Voltage Battery Tool Motor Control
Cordless screwdrivers, drills, and garden tools running from 12-24 V Li-ion packs can use the PIC24FJ16MC102T-I/SS as the brushless control brain. Its 3.0 V minimum VDD allows direct connection to a regulated 3.3 V rail derived from the pack, while the MCPWM drives a three-phase FET bridge via gate drivers. The CTMU can measure pack temperature via an NTC, enabling thermal protection without extra analog circuitry. Battery-life targets benefit from the part's low-power sleep modes, and PPS flexibility simplifies routing on cramped tool-handle PCBs. Designers needing higher torque density FOC should consider dsPIC33 family upgrades.
Recommended
Recommended Products Summary
Engineering reference data for PIC24FJ16MC102T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC24FJ16MC102-I/SS | PIC24FJ16MC101-I/SS | PIC24FJ32MC102-I/SS | PIC24FJ16MC102T-E/SS | PIC24FJ16MC102T-I/SO |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SOIC - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 32 KB | 16 KB | 16 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 2 KB | 1 KB | 1 KB |
| CTMU | Yes | Yes | No | Yes | Yes | Yes |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Max CPU Speed | 16 MIPS (32 MHz) | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| Packaging Form | Tape & Reel | Tube | Tube | Tube | Tape & Reel | Tape & Reel |
Key Differentiators
- Integrated Motor Control PWM (MCPWM) peripheral (vs Generic PIC24FJ16GA004-I/PT)
- CTMU included on die (vs PIC24FJ16MC101-I/SS)
- Same 28-SSOP footprint across Flash options (vs PIC24FJ32MC102-I/SS)
Design Notes
Place a 10 µF bulk + 0.1 µF ceramic decoupling pair within 5 mm of the VDD and VSS pins to suppress switching transients from MCPWM-driven FET bridges. The PIC24FJ16MC102T-I/SS has an on-chip LDO that powers the core from VDD; noise on this rail couples into ADC measurements. For motor-control designs, separate analog and digital VDD planes with a ferrite bead to isolate the ADC reference from PWM switching noise. Estimated: at 16 MIPS full activity, VDD current is approximately 15-20 mA, so 1 oz copper pours of at least 10 mm² per supply pin are recommended.
The PIC24FJ16MC102T-I/SS SSOP-28 package has a thermal resistance (theta_JA) of approximately 80 °C/W. In a 25 °C ambient, the maximum continuous internal dissipation is roughly 1.5 W before hitting the 125 °C junction limit - far above the part's actual operating current, so thermal shutdown is rarely a concern. Still, place the device away from power-stage heat sinks and use copper pours under the SSOP-28 leads to spread heat. For outdoor enclosures with no airflow, derate VDD to 3.3 V to reduce internal dissipation.
Route MCPWM outputs as differential pairs (PWM1H/PWM1L) with a ground-reference trace between them to minimize switching noise coupling to analog inputs. Keep ADC traces short and avoid routing them under PWM traces. Use a 4-layer PCB with a dedicated ground plane for best ADC performance; on 2-layer boards, place a ground pour on the bottom layer under the MCU. Programming pins RB6 (PGC) and RB7 (PGD) require a 4.7kΩ pull-up on MCLR if In-Circuit Serial Programming is used.
Do not confuse the 'I' suffix (industrial -40 °C to +85 °C) with the 'E' suffix (extended -40 °C to +125 °C) - the temperature ranges differ and 'E' parts are typically higher priced. The 'T' suffix denotes Tape & Reel; production designs can request the tube-packaged variant (no 'T') for hand-assembly prototypes. Note that the PIC24FJ16MC101 and PIC24FJ16MC102 share the same datasheet but differ in CTMU and PPS availability; code that relies on CTMU will not run on the '101 variant.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - industrial temperature grade only. Lead-free and halogen-free per Microchip environmental certification. Conflict-minerals reporting available on Microchip website.
