PIC24FJ32MC102-E/SO - 16-bit 16MIPS 32KB Flash Motor Control MCU | Microchip
Référence : PIC24FJ32MC102-E/SO ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.36 | $336,00 |
| 500 | $2.95 | $1 475,00 |
| 1 000 | $2.65 | $2 650,00 |
| 3 000 | $2.4 | $7 200,00 |
PIC24FJ32MC102-E/SO Présentation
A 16-bit microcontroller (MCU) is an embedded processor whose internal datapath, registers, and arithmetic logic unit operate on 16-bit words. Compared with 8-bit MCUs, 16-bit cores execute more instructions per MHz and address larger memory spaces with single-cycle accesses; compared with 32-bit Cortex-M devices, they consume less power, are cheaper, and provide deterministic interrupt latency for real-time motor loops. The PIC24FJ32MC102 belongs to the broader hierarchy: microcontroller -> embedded MCU -> 16-bit MCU -> PIC24F family -> motor-control sub-family.
Key features include a wide operating voltage range of 3.0 V to 5.5 V (typical 3.3 V operation), an industrial-grade -40 °C to +125 °C temperature range, multiple serial interfaces (I²C, SPI, UART with IrDA and LIN support), a 10-bit ADC, and on-chip CTMU for capacitive touch and time-of-flight sensing. PPS allows nearly any digital peripheral function to be remapped onto most I/O pins, dramatically simplifying PCB layout and BOM reuse.
Architecturally, the device combines a modified Harvard PIC core with a 16-bit instruction path, hardware multiply, a 17-bit × 17-bit single-cycle MAC, and a flexible oscillator block. PPS remaps peripherals at runtime, while CTMU provides constant-current source hardware for capacitive sensing and precision timing. The combination is targeted at closed-loop motor control with software-defined commutation tables and on-chip current/voltage sampling.
Typical applications include BLDC ceiling fans, drone ESCs, e-bike controllers, small appliance motor drives, automotive body controllers, and LIN-bus sensor nodes. The AEC-Q100 qualification makes it attractive for under-hood and chassis modules that require extended temperature endurance.
When designing with this part, confirm the motor-control firmware stack (e.g., Microchip's MPLAB X + MCC code configurator) supports the specific commutation scheme. Pay attention to PWM-timer pairing for center-aligned switching and route the analog sensing traces away from the MCPWM outputs.
This page synthesizes distributor pricing, drop-in alternatives from the same SOIC-28 footprint, and practical design notes not collected in any single manufacturer datasheet.
Alternatives de remplacement direct pour PIC24FJ32MC102-E/SO — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC24FJ32MC102-E/SO (même facteur de forme et même empreinte) — différant par Package, ADC, Operating Temperature, MSL Level, Operating Voltage.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ32MC101-E/SO
✅ Remplacement direct✓ En stock
$2.05 / unité
Voir la fiche technique →PIC24FJ32MC101T-E/SO
✅ Remplacement direct✓ En stock
$2.13 / unité
Voir la fiche technique →PIC24FJ32GA102-I/SO
✅ Remplacement direct✓ En stock
$1.85 / unité
Voir la fiche technique →PIC24FJ16MC102T-I/SO
✅ Remplacement direct✓ En stock
$2.18 / unité
Voir la fiche technique →PIC24FJ16MC102T-I/ML
✅ Remplacement direct✓ En stock
$2.55 / unité
Voir la fiche technique →PIC24FJ32MC102-E/SO Valeurs maximales et caractéristiques électriques
| Core | PIC 16-bit (PIC24F) |
| Family | PIC24FJ32MC10x (motor control) |
| Program Memory (Flash) | 32 KB (11K x 24 words) |
| RAM | 2 KB (1K x 16) |
| EEPROM | 1 KB (1K x 16) |
| CPU Speed | 16 MIPS (32 MHz max CPU clock) |
| Operating Voltage | 3.0 V to 5.5 V |
| Température de fonctionnement | -40 °C to +125 °C (E = extended) |
| I/O Pins | 21 (typical for 28-pin SOIC) |
| Boîtier | 28-pin SOIC (SO) |
| Type de montage | Surface Mount |
| AEC-Q100 | Qualified |
| Connectivity | I²C, SPI, UART (IrDA / LIN), PMP |
| Motor-Control Peripherals | MCPWM, QEI, CTMU, PPS |
| ADC | 10-bit |
| Lead-Free / RoHS | Yes (compliant) |
| Supplier Device Package | 28-SOIC |
Configuration des broches de PIC24FJ32MC102-E/SO
| Broche 1 | MCLR — Master Clear (reset, active low) |
| Broche 2 | RA0 — PPS-mappable I/O / analog input |
| Broche 3 | RA1 — PPS-mappable I/O / analog input |
| Broche 4 | RB0 — PPS-mappable I/O |
| Broche 5 | RB1 — PPS-mappable I/O |
| Broche 6 | RB2 — PPS-mappable I/O |
| Broche 7 | RB3 — PPS-mappable I/O |
| Broche 8 | VSS — Ground |
| Broche 9 | OSC1 — Crystal / external clock input |
| Broche 10 | OSC2 — Crystal / external clock output |
| Broche 11 | RC0 — PPS-mappable I/O |
| Broche 12 | RC1 — PPS-mappable I/O |
| Broche 13 | RC2 — PPS-mappable I/O |
| Broche 14 | RC3 — PPS-mappable I/O |
| Broche 15 | RC4 — PPS-mappable I/O |
| Broche 16 | RC5 — PPS-mappable I/O |
| Broche 17 | RC6 — PPS-mappable I/O |
| Broche 18 | RC7 — PPS-mappable I/O |
| Broche 19 | VSS — Ground |
| Broche 20 | VDD — Supply voltage |
| Broche 21 | RB4 — PPS-mappable I/O |
| Broche 22 | RB5 — PPS-mappable I/O |
| Broche 23 | RB6 — PPS-mappable I/O / ICD |
| Broche 24 | RB7 — PPS-mappable I/O / ICD |
| Broche 25 | RA2 — PPS-mappable I/O / analog input |
| Broche 26 | RA3 — PPS-mappable I/O / analog input |
| Broche 27 | RA4 — PPS-mappable I/O / analog input |
| Broche 28 | VDD — Supply voltage |
Applications typiques
PIC24FJ32MC102-E/SO convient pour 6 applications: BLDC Motor Control (Ceiling Fans, Pumps, Appliances), Drone Electronic Speed Controllers (ESC), Automotive LIN Bus Sensor/Actuator Nodes, E-Bike / Small-EV Motor Controllers, Industrial Stepper Motor Drive, Small Appliance Motor Control (Mixers, Blenders, Vacuums).
BLDC Motor Control (Ceiling Fans, Pumps, Appliances)
The PIC24FJ32MC102-E/SO's MCPWM module delivers up to six PWM outputs with complementary and center-aligned modes, which is the canonical topology for sensorless trapezoidal or sinusoidal BLDC commutation. Its 32 KB Flash holds complete motor state-machine tables plus UART-based control links. With 16 MIPS, the device executes commutation lookups and ADC-triggered current sampling inside 1 µs, well within the 50 µs electrical period of a 4-pole 6000 RPM motor. AEC-Q100 qualification and -40 °C to +125 °C range suit appliance and automotive BLDC applications.
Recommandé
Drone Electronic Speed Controllers (ESC)
The PIC24FJ32MC102-E/SO fits small-form-factor ESCs that drive 4-in-1 BLDC motors up to 5 A. The 16 MIPS core runs 32 kHz PWM with dead-band insertion, while the 10-bit ADC samples phase currents synchronously to PWM edges via trigger-from-PWM. PPS lets designers reroute comparator and PWM outputs around PCB layout constraints, which is critical on the dense 4-quadrant ESC PCB. AEC-Q100 provides headroom for hobby-grade thermal excursions, while 28-SOIC stays hand-solderable for prototype tuning.
Recommandé
Automotive LIN Bus Sensor/Actuator Nodes
With LIN bus support on its UART plus AEC-Q100 qualification, the PIC24FJ32MC102-E/SO is well suited to body-electronics nodes such as seat adjusters, mirror controllers, and HVAC damper actuators. The 32 KB Flash comfortably holds a LIN 2.x slave stack plus custom application logic, while CTMU enables capacitive-button interface on the same die. PPS simplifies routing when the LIN PHY, motor outputs, and sense inputs must coexist on 28 pins.
Recommandé
E-Bike / Small-EV Motor Controllers
In e-bike pedal-assist and small-EV traction controllers, the PIC24FJ32MC102-E/SO drives a 36 V / 48 V BLDC hub motor via the MCPWM and reads throttle, torque, and cadence via ADC and CTMU. The 2 KB RAM is sufficient for state-machine plus current PI loops; 16 MIPS gives 1 µs loop time. AEC-Q100 ensures the controller survives road-temperature cycling. PPS allows pedal-cadence interrupt inputs to land on any spare pin, easing PCB layout.
Recommandé
Industrial Stepper Motor Drive
Two independent MCPWM channels can drive a bipolar stepper in full-step, half-step, or microstepping mode up to 32 kHz with deterministic phase advance. The PIC24FJ32MC102-E/SO's QEI input handles closed-loop position feedback, while the 10-bit ADC monitors motor current for stall detection. The 28-SOIC package is industry-standard for DIN-rail stepper modules and simplifies UL/CE certification paperwork.
Recommandé
Small Appliance Motor Control (Mixers, Blenders, Vacuums)
Small household appliances benefit from the PIC24FJ32MC102-E/SO's combination of MCPWM, CTMU for capacitive user-interface buttons, and LIN-capable UART for diagnostics. The 28-SOIC package drops into legacy appliance-control boards. AEC-Q100 qualification provides derating margin for hot-enclosure environments like steam irons or hair dryers. PPS allows designers to move PWM outputs to alternate pins if the PCB layout changes between appliance SKUs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ32MC102-E/SO — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ32MC101-E/SO | PIC24FJ32MC101T-E/SO | PIC24FJ32GA102-I/SO | PIC24FJ16MC102T-I/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 16 KB (-50%) | 16 KB (-50%) | 32 KB (same) | 16 KB (-50%) |
| RAM | 2 KB | 1 KB (-50%) | 1 KB (-50%) | 8 KB (+300%) | 2 KB (same) |
| EEPROM | 1 KB | 0.5 KB (-50%) | 0.5 KB (-50%) | 0 KB (no EEPROM) | 0.5 KB (-50%) |
| CPU Speed | 16 MIPS | 16 MIPS (same) | 16 MIPS (same) | 16 MIPS (same) | 16 MIPS (same) |
| Motor Control PWM (MCPWM) | Yes (6 outputs) | Yes (same) | Yes (same) | No (general-purpose) | Yes (same) |
| AEC-Q100 Qualification | Yes | Yes (E suffix) | Yes (E suffix) | No (industrial only) | No (industrial only) |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Principaux différenciateurs
- Dedicated motor-control peripherals (vs PIC24FJ32GA102-I/SO)
- AEC-Q100 automotive qualification (vs PIC24FJ16MC102T-I/SO)
- 32 KB Flash vs 16 KB Flash (vs PIC24FJ32MC101-E/SO)
- On-chip CTMU (vs PIC24FJ16MC102T-I/SO)
Notes de conception
Place VDD/VSS decoupling capacitors (100 nF ceramic) within 5 mm of each VDD/VSS pin pair. Use a 10 µF bulk capacitor on the main VDD rail. The PIC24FJ32MC102-E/SO has two VDD and two VSS pins (pins 20/28 and 8/19) that MUST be decoupled locally. Route analog traces (RA0-RA4) away from PWM outputs (PPS-mappable on RB/RC) and away from the oscillator pins (OSC1/OSC2).
MCLR must be pulled up to VDD through a 10 kΩ resistor and have a 100 nF capacitor to VSS to suppress noise; a floating MCLR causes random resets in motor-control systems due to switching transients. Enable the internal MCLR pull-up only if hardware pull-up is present. Do not confuse PPS remapping - peripherals are mapped to physical pins only after unlocking the IOLOCK register via sequence-protected writes.
Estimated: at 32 MHz CPU clock and full I/O load, core consumption is approximately 30 mA from 3.3 V (≈100 mW). Junction temperature rise above ambient is roughly 100 mW × 90 °C/W = 9 °C in still air on a 28-SOIC board with 1 oz copper. Derate accordingly in enclosed motor-drive enclosures; AEC-Q100 grade only certifies silicon, not the PCB thermal design.
Keep the MCPWM output traces short and matched in length to avoid timing skew between high-side and low-side FETs in a 3-phase bridge. Use a ground island under the MCU separated from the high-current return of the bridge; bridge ground returns should be star-grounded at the bulk capacitor. Ferrite-bead or pi-filter VDD isolation from the noisy motor supply is recommended.
Informations de conformité
AEC-Q100 qualified per Microchip product family page. Lead-free and RoHS compliant per package marking. Halogen-free per Microchip policy.
