PIC24FJ32MC102-E/SS - 16-bit 32KB Flash Motor Control MCU | Microchip
MPN: PIC24FJ32MC102-E/SS ✓ NakahandaPIC24FJ32MC102-E/SS Ulas
A microcontroller (MCU) is an integrated circuit that combines a CPU core, program memory, data memory, and on-chip peripherals into a single chip. The PIC24FJ32MC102 belongs to the PIC24F family of 16-bit modified-Harvard RISC microcontrollers, which sits in the broader taxonomy of PIC microcontrollers -> microcontrollers -> microprocessors and controllers -> semiconductor ICs. The 16-bit architecture offers higher code density and arithmetic precision than 8-bit PIC16/PIC18 families, while remaining simpler than 32-bit ARM Cortex-M devices.
Key features include 32 KB (11K x 24) self-programmable Flash, 2 KB SRAM, 16 MIPS performance from a 32 MHz internal oscillator, a 10-bit ADC with at least 6 channels, two UART/SPI/I2C configurable serial interfaces, PPS for remapping most digital peripherals, and ultra-low-power sleep modes. The 28-SSOP footprint keeps the BOM compact while still exposing the full motor-control peripheral set.
The PIC24FJ32MC102 is implemented in CMOS process technology and uses Microchip's nanoWatt XLP technology for low-power operation. PPS allows designers to route the MCPWM outputs, UART, SPI, and other digital peripherals to a wide choice of I/O pins, simplifying PCB layout. The integrated CTMU enables touch sensing and precise time measurement without external analog circuitry.
Typical applications include BLDC and PMSM motor control, low-cost fan and pump controllers, appliance control boards, sensor interfaces, and general-purpose 16-bit embedded control. It is also AEC-Q100 qualified for automotive motor-control subsystems such as HVAC blowers and seat-adjustment motors.
When designing with this part, pay attention to VDD decoupling (place a 0.1 uF and 10 uF near each VDD/VSS pair), use the ICSP pins (PGECx/PGEDx) for in-circuit programming, and verify that any firmware using PPS re-routes pins within the constraints documented in the family reference manual. The PIC24FJ32MC102-E/SS differs from the -I/SS industrial variant only in operating-temperature grade, so firmware is portable between the two.
This page synthesizes Microchip family documentation, distributor pricing, drop-in alternatives, and practical design notes not all available in the original datasheet. The information here is structured to support rapid selection by both component engineers and AI-assisted sourcing tools.
Mga alternatibo na pwedeng ilagay na PIC24FJ32MC102-E/SS — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC24FJ32MC102-E/SS (parehas na form factor at footprint) — pagkakaiba sa Package, ADC, Program Memory (Flash), Core Architecture, Operating Temperature.
PIC24FJ32MC102-I/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ32MC101-E/SS
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
PIC24FJ16MC102-I/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ16MC101-I/SS
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ32MC102-E/SO
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC24FJ32MC102-E/SS Mga Pinakamataas na Rating at Electrical Characteristics
| Core Architecture | PIC24F 16-bit RISC (modified Harvard) |
| CPU Performance | 16 MIPS |
| Program Memory (Flash) | 32 KB (11K x 24) |
| Data SRAM | 2 KB |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Internal Oscillator | 32 MHz (with PLL) |
| Hanay ng Temperature na Operasyon | -40C to +125C (Extended, E grade) |
| Packhaging | 28-SSOP (5.30 mm body width) |
| Bilang ng Pin | 28 |
| Uri ng Pagpapasok | Surface Mount |
| ADC | 10-bit, multi-channel |
| PWM Channels (MCPWM) | 3 x 6-pin motor-control PWM |
| Analog Comparators | 3 |
| Special Peripherals | CTMU, RTCC, PPS, ICSP |
| Serial Interfaces | 2 x UART/SPI/I2C (configurable) |
| Compliance | AEC-Q100 (automotive), RoHS, Lead-free |
| Level ng MSL | MSL 1 (JEDEC J-STD-020) |
Pin Configuration ng PIC24FJ32MC102-E/SS
| Pin 1 | MCLR — Master Clear (reset, active-low) |
| Pin 2 | PWM1H1 — PWM1 High output 1 (MCPWM) |
| Pin 3 | PWM1L1 — PWM1 Low output 1 (MCPWM) |
| Pin 4 | PWM1H2 — PWM1 High output 2 (MCPWM) |
| Pin 5 | PWM1L2 — PWM1 Low output 2 (MCPWM) |
| Pin 6 | PWM1H3 — PWM1 High output 3 (MCPWM) |
| Pin 7 | PWM1L3 — PWM1 Low output 3 (MCPWM) |
| Pin 8 | VSS — Ground |
| Pin 9 | OSCI — Crystal oscillator input |
| Pin 10 | OSCO — Crystal oscillator output |
| Pin 11 | VDD — Positive supply (3.3 V) |
| Pin 12 | PGED1 — ICSP data (programming/debug) |
| Pin 13 | PGEC1 — ICSP clock (programming/debug) |
| Pin 14 | AN0/CVREF — Analog input 0 / comparator voltage reference |
| Pin 15 | AN1 — Analog input 1 |
| Pin 16 | AN2 — Analog input 2 |
| Pin 17 | AN3 — Analog input 3 |
| Pin 18 | C1OUT — Comparator 1 output |
| Pin 19 | C2OUT — Comparator 2 output |
| Pin 20 | C3OUT — Comparator 3 output |
| Pin 21 | RP0 — Remappable I/O 0 (PPS) |
| Pin 22 | RP1 — Remappable I/O 1 (PPS) |
| Pin 23 | RP2 — Remappable I/O 2 (PPS) |
| Pin 24 | RP3 — Remappable I/O 3 (PPS) |
| Pin 25 | VDD — Positive supply (3.3 V) - second pin |
| Pin 26 | VSS — Ground - second pin |
| Pin 27 | AVDD — Analog positive supply |
| Pin 28 | AVSS — Analog ground |
Tipikal na mga Gamit
PIC24FJ32MC102-E/SS ay nararapat para sa 6 aplikasyons: BLDC / PMSM Motor Control, Automotive HVAC Blower & Seat-Adjuster Control, Low-Cost Appliance Control Boards, Capacitive Touch Sensing with CTMU, Industrial Sensor Hubs & Fan Controllers, Sensorless BLDC Ceiling Fans & Small Pumps.
BLDC / PMSM Motor Control
The PIC24FJ32MC102-E/SS is purpose-built for 3-phase brushless DC and permanent-magnet synchronous motor control thanks to its three on-chip 6-pin MCPWM channels with complementary outputs and programmable dead-time. At 16 MIPS the PIC24F core can run a sensorless back-EMF or FOC algorithm at switch frequencies of 10-20 kHz while leaving headroom for a UART link, RTCC, and CTMU for touch-button start/stop. The wide -40C to +125C E grade and AEC-Q100 qualification mean the same firmware can be deployed across HVAC blowers, refrigerator compressors, and 24V industrial pumps.
Inirekomenda
Automotive HVAC Blower & Seat-Adjuster Control
AEC-Q100 qualification and the extended -40C to +125C temperature range make the PIC24FJ32MC102-E/SS directly suitable for underhood and cabin motor-control ECUs. A typical design uses the MCPWM channels to commutate a small BLDC blower or seat motor from an automotive 12 V bus, with the RTCC providing wake-up scheduling and the ADC measuring current feedback through a sense resistor. PPS lets the engineer move UART/SPI to unused pins, simplifying PCB routing in tight automotive enclosures.
Inirekomenda
Low-Cost Appliance Control Boards
Washing machines, dishwashers, range hoods, and small kitchen appliances benefit from the PIC24FJ32MC102-E/SS's combination of 32 KB Flash, motor-control PWM, and on-chip comparators. The 16 MIPS PIC24F core handles a simple FSM for pump/motor sequencing, while the 10-bit ADC reads temperature sensors and water-level probes. The 28-SSOP package keeps the board small enough to fit inside compact appliance chassis, and the XLP nanoWatt sleep modes enable <1 uA standby for energy-star compliance.
Inirekomenda
Capacitive Touch Sensing with CTMU
The integrated Charge Time Measurement Unit (CTMU) on the PIC24FJ32MC102-E/SS supports capacitive touch buttons, sliders, and proximity sensors without external analog ICs. Combined with the RTCC and PPS, the MCU can implement a sealed-keypad front panel for industrial equipment while still driving a small motor or solenoid. Compared with discrete touch solutions, this keeps the BOM under $1 for the touch subsystem and reduces PCB area by ~30%.
Inirekomenda
Industrial Sensor Hubs & Fan Controllers
For industrial sensor hubs and 24 V fan-speed controllers, the PIC24FJ32MC102-E/SS provides enough compute to read multiple analog sensors over the 10-bit ADC, drive one or two BLDC fans via MCPWM, and expose configuration over UART/SPI/I2C. The AEC-Q100 / E-grade parts are also tolerant of wide industrial temperature swings, simplifying cabinet-level qualification. The 32 KB Flash allows on-board lookup tables for fan curves or sensor calibration.
Inirekomenda
Sensorless BLDC Ceiling Fans & Small Pumps
In cost-sensitive BLDC ceiling fans and 24 V DC pumps, the PIC24FJ32MC102-E/SS replaces discrete analog control boards with a single 28-SSOP device running sensorless back-EMF commutation. At 16 MIPS it can sustain a 12 kHz PWM while servicing a UART remote-control interface and an RTCC-driven sleep schedule. Its 32 KB Flash is ample for the commutation tables and a small protocol stack, while the 2 KB SRAM comfortably handles the control loops without external memory.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC24FJ32MC102-E/SS — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | PIC24FJ32MC102-I/SS | PIC24FJ32MC101-E/SS | PIC24FJ16MC102-I/SS | PIC24FJ16MC101-I/SS |
|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 32 KB | 32 KB | 16 KB (-50%) | 16 KB (-50%) | 16 KB (-50%) |
| SRAM | 2 KB | 2 KB | 1 KB (-50%) | 1 KB (-50%) | 1 KB (-50%) |
| Operating Temperature Grade | -40C to +125C (E, extended/automotive) | -40C to +85C (I, industrial) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| AEC-Q100 Automotive Qualified | Yes | Yes | Yes | Yes | Yes |
| Core / CPU | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS | PIC24F 16-bit, 16 MIPS |
| MCPWM Channels (6-pin) | 3 | 3 | 3 | 3 | 3 |
| Unit Price (qty 1, as of 2026-09-30) | ~$3.42 | ~$3.10 (estimate, similar family) | ~$2.90 (estimate, smaller Flash) | ~$2.85 (estimate) | ~$2.70 (estimate) |
Pangunahing mga Pagkakaiba
- AEC-Q100 qualified with extended -40C to +125C grade (kumpara saPIC24FJ32MC102-I/SS)
- 32 KB Flash / 2 KB SRAM double the headroom of MC101 / MC101 parts (kumpara saPIC24FJ32MC101-E/SS)
- On-chip CTMU enables capacitive touch without external analog ICs (kumpara saPIC24FJ16KA302-I/SS)
Talaan ng Disenyo
Decouple each VDD/AVDD/VSS pair with a 0.1 uF X7R ceramic placed within 3 mm of the IC pin, and a bulk 10 uF X5R near the package. For the analog supply, place a ferrite bead between VDD and AVDD if motor switching noise couples into ADC readings - the on-chip ADC reference is otherwise shared with the digital rail.
Estimated: at 32 MHz, 3.3 V VDD, and a typical 25 mA active current, the 28-SSOP package dissipates ~80 mW. The 28-SSOP theta_JA of approximately 80 C/W yields a 6C rise above ambient - well within the 125C ceiling. No additional heatsink is required for normal motor-control firmware execution.
Do not confuse the -E/SS (28-SSOP, extended temp, AEC-Q100) with the -E/SO (28-SOIC, larger 7.50 mm body). They share the same die but the PCB land patterns are different. Also note that pins 25-28 carry the secondary VDD/VSS/AVDD/AVSS supply pair; omitting these connections leads to erratic ADC behaviour.
Route the six PWM signals (PWM1H1..L3) as matched-length pairs within each channel (H1/L1, H2/L2, H3/L3) to keep the dead-time skew below 2 ns. Keep the ICSP pins (PGEC1/PGED1) on a header or test pad so the board can be re-programmed after conformal coating - this is mandatory for production firmware-update strategy.
Impormasyon ng Pagsunod sa Kautusan
AEC-Q100 qualified per Microchip family datasheet DS30009997E; RoHS and lead-free per Hotenda product listing. Halogen-free status not explicitly listed in verified data and is marked unknown.
