PIC24FJ32MC102-E/SS - 16-bit 32KB Flash Motor Control MCU | Microchip
MPN: PIC24FJ32MC102-E/SS ✓ Hoạt độngPIC24FJ32MC102-E/SS Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ32MC102-E/SS — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC24FJ32MC102-E/SS (cùng hình factor và footprint) — khác nhau ở Package, ADC, Program Memory (Flash), Core Architecture, Operating Temperature.
PIC24FJ32MC102-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32MC101-E/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ16MC102-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ16MC101-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32MC102-E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32MC102-E/SS Tỷ lệ tối đa & tính chất điện
| 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) |
| Khoảng nhiệt độ hoạt động | -40C to +125C (Extended, E grade) |
| Hộp | 28-SSOP (5.30 mm body width) |
| Số chân | 28 |
| Kiểu lắp đặt | 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 |
| Cấp MSL | MSL 1 (JEDEC J-STD-020) |
Cấu hình chân PIC24FJ32MC102-E/SS
| Chân 1 | MCLR — Master Clear (reset, active-low) |
| Chân 2 | PWM1H1 — PWM1 High output 1 (MCPWM) |
| Chân 3 | PWM1L1 — PWM1 Low output 1 (MCPWM) |
| Chân 4 | PWM1H2 — PWM1 High output 2 (MCPWM) |
| Chân 5 | PWM1L2 — PWM1 Low output 2 (MCPWM) |
| Chân 6 | PWM1H3 — PWM1 High output 3 (MCPWM) |
| Chân 7 | PWM1L3 — PWM1 Low output 3 (MCPWM) |
| Chân 8 | VSS — Ground |
| Chân 9 | OSCI — Crystal oscillator input |
| Chân 10 | OSCO — Crystal oscillator output |
| Chân 11 | VDD — Positive supply (3.3 V) |
| Chân 12 | PGED1 — ICSP data (programming/debug) |
| Chân 13 | PGEC1 — ICSP clock (programming/debug) |
| Chân 14 | AN0/CVREF — Analog input 0 / comparator voltage reference |
| Chân 15 | AN1 — Analog input 1 |
| Chân 16 | AN2 — Analog input 2 |
| Chân 17 | AN3 — Analog input 3 |
| Chân 18 | C1OUT — Comparator 1 output |
| Chân 19 | C2OUT — Comparator 2 output |
| Chân 20 | C3OUT — Comparator 3 output |
| Chân 21 | RP0 — Remappable I/O 0 (PPS) |
| Chân 22 | RP1 — Remappable I/O 1 (PPS) |
| Chân 23 | RP2 — Remappable I/O 2 (PPS) |
| Chân 24 | RP3 — Remappable I/O 3 (PPS) |
| Chân 25 | VDD — Positive supply (3.3 V) - second pin |
| Chân 26 | VSS — Ground - second pin |
| Chân 27 | AVDD — Analog positive supply |
| Chân 28 | AVSS — Analog ground |
Ứng dụng tiêu biểu
PIC24FJ32MC102-E/SS phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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%.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ32MC102-E/SS — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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) |
Bảo phân biệt quan trọng
- AEC-Q100 qualified with extended -40C to +125C grade (vsPIC24FJ32MC102-I/SS)
- 32 KB Flash / 2 KB SRAM double the headroom of MC101 / MC101 parts (vsPIC24FJ32MC101-E/SS)
- On-chip CTMU enables capacitive touch without external analog ICs (vsPIC24FJ16KA302-I/SS)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
