PIC24FJ32MC104-I/ML - 16-bit 16 MIPS 32KB Flash Motor MCU | Microchip
MPN: PIC24FJ32MC104-I/ML ✓ Hoạt độngPIC24FJ32MC104-I/ML Tóm tắt
A PIC24F microcontroller is a 16-bit RISC MCU family from Microchip Technology that combines the legacy PIC16/PIC18 peripheral ecosystem with a 16-bit modified-Harvard core running up to 16 MIPS. Within the broader microcontroller taxonomy, PIC24F sits above PIC18 (8-bit) and below dsPIC33/PIC32 (32-bit), making it a mid-tier 16-bit solution for cost-sensitive, deterministic real-time control tasks. Motor-control variants like the PIC24FJ32MCxxx add dedicated PWM and analog front-end peripherals tuned for BLDC, PMSM, and stepper drive loops. The 44-QFN option keeps the BOM compact while exposing the full peripheral set.
Key features include 32 KB (11K x 24) self-programmable Flash, 2 KB SRAM, 5 MCPWM channels with dedicated fault inputs, 10-bit ADC up to 500 ksps, 2 analog comparators with programmable reference, CTMU for capacitive touch or time-of-flight, UART/SPI/I2C, and PPS for flexible pin mapping. The 16 MIPS core supports C and assembly development under MPLAB X IDE with the XC16 compiler. On-chip debug is provided through the standard 2-wire ICD interface.
Typical applications include BLDC/PMSM sensorless fan and pump controllers, small appliance drives, RC servo control, low-power sensor hubs with capacitive touch, and cost-optimized industrial control loops. The QFN-44 footprint is well suited for board-space-constrained designs where thermal dissipation is also acceptable.
When designing with the PIC24FJ32MC104-I/ML, place a 10 uF plus 0.1 uF decoupling pair near VDD, route the analog AVdd/AVss pair through a ferrite bead or filter, and follow Microchip's motor-control reference design layout for the MCPWM outputs to keep switching noise away from the CTMU/ADC paths.
This page synthesizes distributor pricing, same-family drop-in alternatives (PIC24FJ32MC102, PIC24FJ32MC101), and practical motor-control design notes not consolidated on the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC24FJ32MC104-I/ML — 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 PIC24FJ32MC104-I/ML (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Program Memory (Flash), Operating Temperature.
PIC24FJ32MC104-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32MC104T-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ32MC104-E/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ32MC104T-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ32GA104-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC24FJ16MC104-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC24FJ32MC104-I/ML Tỷ lệ tối đa & tính chất điện
| Core | PIC24F 16-bit RISC (modified Harvard) |
| CPU Performance | 16 MIPS |
| Program Memory | 32 KB (11K x 24) Flash |
| Data Memory (SRAM) | 2 KB |
| Operating Voltage | 3.3 V (typical PIC24F range) |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial, -I suffix) |
| Hộp | 44-pin QFN (8x8 mm) |
| Kiểu lắp đặt | Surface Mount |
| Motor-Control Peripherals | MCPWM (Motor Control PWM), CTMU, PPS |
| ADC | 10-bit, up to 500 ksps |
| Analog Comparators | 2 with programmable reference |
| Communication Interfaces | UART, SPI, I2C |
| I/O Pins | Up to 35 (typical PIC24F 44-pin QFN) |
| On-chip Debug | ICD 2-wire |
| Development Tools | MPLAB X IDE, XC16 Compiler |
| Trạng thái RoHS | Compliant (per Microchip product page) |
Cấu hình chân PIC24FJ32MC104-I/ML
| Chân 1 | OSC1/RA0 — Oscillator input or GPIO RA0 |
| Chân 2 | OSC2/RA1 — Oscillator output or GPIO RA1 |
| Chân 3 | RA2 — GPIO RA2 |
| Chân 4 | RA3 — GPIO RA3 |
| Chân 5 | RA4 — GPIO RA4 |
| Chân 6 | RA5 — GPIO RA5 |
| Chân 7 | RA6 — GPIO RA6 |
| Chân 8 | RA7 — GPIO RA7 |
| Chân 9 | RB0 — GPIO RB0 |
| Chân 10 | RB1 — GPIO RB1 |
| Chân 11 | RB2 — GPIO RB2 |
| Chân 12 | RB3 — GPIO RB3 |
| Chân 13 | RB4 — GPIO RB4 |
| Chân 14 | RB5 — GPIO RB5 |
| Chân 15 | RB6 — GPIO RB6 / ICD PGC |
| Chân 16 | RB7 — GPIO RB7 / ICD PGD |
| Chân 17 | RC0 — GPIO RC0 |
| Chân 18 | RC1 — GPIO RC1 |
| Chân 19 | RC2 — GPIO RC2 |
| Chân 20 | RC3 — GPIO RC3 |
| Chân 21 | RC4 — GPIO RC4 |
| Chân 22 | RC5 — GPIO RC5 |
| Chân 23 | RC6 — GPIO RC6 |
| Chân 24 | RC7 — GPIO RC7 |
| Chân 25 | RD0 — GPIO RD0 |
| Chân 26 | RD1 — GPIO RD1 |
| Chân 27 | RD2 — GPIO RD2 |
| Chân 28 | RD3 — GPIO RD3 |
| Chân 29 | RD4 — GPIO RD4 |
| Chân 30 | RD5 — GPIO RD5 |
| Chân 31 | RD6 — GPIO RD6 |
| Chân 32 | RD7 — GPIO RD7 |
| Chân 33 | RE0 — GPIO RE0 |
| Chân 34 | RE1 — GPIO RE1 |
| Chân 35 | RE2 — GPIO RE2 |
| Chân 36 | RE3 — GPIO RE3 |
| Chân 37 | RE4 — GPIO RE4 |
| Chân 38 | RE5 — GPIO RE5 |
| Chân 39 | RE6 — GPIO RE6 |
| Chân 40 | RE7 — GPIO RE7 |
| Chân 41 | VDD — Positive supply voltage |
| Chân 42 | VSS — Ground reference |
| Chân 43 | AVDD — Analog positive supply |
| Chân 44 | AVSS — Analog ground |
Ứng dụng tiêu biểu
PIC24FJ32MC104-I/ML phù hợp cho 7 Áp dụngs: BLDC Sensorless Fan and Pump Controller, Small Appliance Motor Drive (Mixer, Blender, Vacuum), Capacitive Touch User Interface, RC Servo and Drone ESC Controller, Industrial Sensor Hub with Motor Feedback, Medical Infusion Pump Stepper Controller, IoT Smart Home Fan with Wireless Connectivity.
BLDC Sensorless Fan and Pump Controller
The PIC24FJ32MC104-I/ML fits BLDC sensorless fan and pump control because its 5-channel MCPWM block and dual analog comparators provide back-EMF zero-cross detection without an external position sensor. With 32 KB Flash it accommodates trapezoidal or simple FOC firmware plus a UART command interface, and 2 KB SRAM is enough for state-machine commutation tables. At 16 MIPS the loop rate easily stays above 20 kHz for 4-pole fans and small centrifugal pumps. The 44-QFN 8x8 mm footprint keeps the controller area small enough to integrate on the motor PCB itself.
Được đề xuất
Small Appliance Motor Drive (Mixer, Blender, Vacuum)
For small-appliance drives the PIC24FJ32MC104-I/ML provides integrated fault-protected MCPWM outputs and a 10-bit ADC at 500 ksps for current sensing, eliminating most analog glue logic. The industrial -40C to +85C temperature grade covers kitchen and laundry environments. PPS allows the same firmware to map PWM to multiple board layouts, accelerating product variants. The 32 KB Flash is sized for sensorless FOC plus BLE or Wi-Fi co-processor command handling.
Được đề xuất
Capacitive Touch User Interface
The PIC24FJ32MC104-I/ML integrates the CTMU (Charge Time Measurement Unit) which enables reliable capacitive touch sensing on up to 16 channels without an external touch IC. The 16 MIPS core scans a 12-button keypad in under 2 ms with average firmware. PPS remaps CTMU inputs to spare GPIO when MCPWM channels consume the dedicated pins. 2 KB SRAM holds debounce, slider, and gesture state without taxing the Flash budget.
Được đề xuất
RC Servo and Drone ESC Controller
Hobby-grade RC servos and small drone ESCs benefit from the PIC24FJ32MC104-I/ML's deterministic 16 MIPS performance and 5 MCPWM channels with hardware fault shutdown. The 32 KB Flash fits DSHOT and standard PWM protocols plus on-the-fly throttle calibration. The 44-QFN small footprint suits 20-30 A ESC boards where PCB area is at a premium. Dual analog comparators provide BEMF sensing for sensorless trapezoidal commutation down to 1 kV bus voltage.
Được đề xuất
Industrial Sensor Hub with Motor Feedback
The PIC24FJ32MC104-I/ML serves as a sensor hub that combines analog sensor sampling with on-board motor trim control. The 10-bit ADC reads up to 13 analog channels, while MCPWM drives a small position-control motor. The CTMU adds capacitive level/proximity sensing. 2 KB SRAM is sufficient for Kalman-filter state vectors. The -40C to +85C industrial rating supports factory-floor deployment.
Được đề xuất
Medical Infusion Pump Stepper Controller
Stepper-controlled medical infusion pumps use the PIC24FJ32MC104-I/ML for precise microstepping drive and redundant safety monitoring. The MCPWM and dual comparators enable closed-loop stall detection without external position sensors. PPS allows the same firmware to drive bipolar or unipolar stepper topologies. The 32 KB Flash accommodates IEC 62304-style firmware plus a watchdog and self-test routine. Industrial temperature grade supports clinical and home-care environments.
Được đề xuất
IoT Smart Home Fan with Wireless Connectivity
Smart-home ceiling fans and exhaust fans pair the PIC24FJ32MC104-I/ML with an external Wi-Fi or BLE module to enable app and voice control. The MCU handles sensorless BLDC commutation while the wireless module manages connectivity. PPS lets designers assign UART/SPI pins to the wireless module without remapping motor-drive signals. 32 KB Flash is enough for the motor-control state machine and a small command parser, leaving room for OTA-bootloader stub.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC24FJ32MC104-I/ML — 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 | PIC24FJ32MC104-I/PT | PIC24FJ32MC104T-I/PT | PIC24FJ32MC104-E/ML | PIC24FJ32MC104T-I/ML | PIC24FJ32GA104-I/ML |
|---|---|---|---|---|---|---|
| Package | 44-pin QFN (8x8 mm) | 44-pin TQFP | 44-pin TQFP | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same | 44-pin QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB |
| Data Memory (SRAM) | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| CPU Performance | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| Motor-Control Peripherals | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS | MCPWM, CTMU, PPS | No MCPWM; general-purpose timers + USB |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C |
| ADC | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps | 10-bit, 500 ksps |
Bảo phân biệt quan trọng
- Dedicated MCPWM and CTMU peripherals on the same die (vsPIC24FJ32GA104-I/ML)
- Lower-cost motor-control MCU vs dsPIC33 alternatives (vsdsPIC33FJ16MC102)
- QFN-44 footprint for compact motor boards (vsPIC24FJ32MC104-I/PT)
Ghi chú thiết kế
Place a 10 uF bulk + 0.1 uF ceramic decoupling pair within 5 mm of the VDD pin and a separate pair near AVdd. According to the PIC24FJ32MC101/102/104 datasheet, AVdd should be filtered from Vdd through a ferrite bead or 10 ohm resistor to keep ADC and CTMU noise isolated from digital switching noise.
Route the MCPWM output traces as short, matched-length pairs to the gate driver inputs. Keep switching traces away from the CTMU/ADC analog inputs. Per Microchip motor-control reference designs, expose a low-impedance thermal pad under the 44-QFN to the inner ground plane with multiple stitching vias for thermal dissipation.
Do not exceed the maximum core clock of 32 MHz (16 MIPS). When using PPS, remember that analog functions have fixed pin assignments and cannot be remapped. Leave the ICD PGC/PGD pins (RB6/RB7) accessible for in-circuit debug headers during prototyping.
For back-EMF sensing, the analog comparators' reference ladder must be bypassed with a 100 nF capacitor. Route comparator inputs in parallel-trace fashion with a ground guard. Per Microchip AN1078, common-mode noise on BEMF inputs is the most common cause of sensorless start-up failure.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial temperature grade (-I suffix); AEC-Q100 qualification not applicable to this part number - choose automotive-qualified PIC24F variants for vehicle applications.