PIC24FJ32MC102-E/ML - 16-Bit 32KB Flash Motor Control MCU | Microchip
MPN: PIC24FJ32MC102-E/ML ✓ פעילPIC24FJ32MC102-E/ML סקירה
A 16-bit microcontroller (MCU) is a microprocessor that processes instructions 16 bits at a time, sitting in the hierarchy between 8-bit MCUs (cost-optimized, simpler control) and 32-bit MCUs (higher performance, more complex applications). Within the broader taxonomy, the PIC24F belongs to the microcontrollers -> embedded controllers -> semiconductor category. The PIC24FJ32MC102 targets cost-sensitive BLDC, PMSM, and stepper motor control applications where the larger 16-bit data path simplifies fractional arithmetic for control loops, and the integrated motor-control peripherals eliminate the need for an external gate driver controller for small motors.
Key features include 21 general-purpose I/O lines, three 16-bit timers, two UART, one SPI, one I2C, a 10-bit ADC with up to 9 channels and 500 ksps conversion rate, and an internal 8 MHz oscillator with PLL support up to 32 MHz. The CTMU enables capacitive touch sensing and precise time-of-flight measurements, while the RTCC supports calendar functions with backup power from a separate VBAT pin. The PPS module routes most digital peripherals to user-selected pins, simplifying PCB layout and BOM.
Typical applications include ceiling fans, RC servo drives, small pumps, white-goods motor controllers, and low-cost BLDC/PMSM sensorless or sensored drives. Industrial uses extend to small appliance inverters and toys. Designers choose the PIC24FJ32MC102 for compact 28-pin motor-control designs that require deterministic PWM, fault protection via comparators, and field-proven PIC24F firmware libraries (motor control, USB, graphics). It is pin-compatible with the PIC24FJ16MC102 (half the Flash) and the PIC24FJ32MC104 (32-pin variants with more peripherals).
חלופות תחליף ישיר עבור PIC24FJ32MC102-E/ML — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC24FJ32MC102-E/ML (אותו גורם צורה וטביעת רגל) — שונים ב Package, Core, ADC, CTMU, I/O Pins.
PIC24FJ32MC102-I/ML
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC24FJ16MC102-E/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ32MC101-E/ML
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC24FJ32MC102-I/SO
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC24FJ64MC102-E/ML
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC24FJ32MC102-E/SP
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC24FJ32MC102-E/ML דירוגים מרביים ומאפיינים חשמליים
| Core | PIC24F (16-bit RISC) |
| Program Memory (Flash) | 32 KB (11K x 24) |
| Data RAM | 2 KB |
| Performance | 16 MIPS |
| תדר שעון מקסימלי | 32 MHz (with PLL) |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| טווח טמפרטורת פעולה | -40 C to +125 C (Extended, -E suffix) |
| מארז | 28-pin QFN (6x6 mm) |
| סוג הרכבה | Surface Mount |
| I/O Pins | 21 |
| Motor Control PWMs (MCPWM) | 3 |
| Analog Comparators | 3 |
| CTMU (Charge Time Measurement Unit) | Yes |
| RTCC (Real-Time Clock/Calendar) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| ADC | 10-bit, up to 9 channels, 500 ksps |
| Timers (16-bit) | 3 (T1, T2, T3) |
| UART | 2 |
| SPI | 1 |
| I2C | 1 |
| Internal Oscillator | 8 MHz (with PLL) |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC24FJ32MC102-E/ML
| פין 1 | RA0 — GPIO / analog input AN0 / CVREF- |
| פין 2 | RA1 — GPIO / analog input AN1 / CVREF+ |
| פין 3 | RA2 — GPIO / analog input AN2 |
| פין 4 | RA3 — GPIO / analog input AN3 |
| פין 5 | RA4 — GPIO / analog input AN4 |
| פין 6 | VDD — Positive supply voltage (3.0-3.6V) |
| פין 7 | VSS — Ground reference |
| פין 8 | OSCI — External oscillator input / CLKI |
| פין 9 | OSCO — External oscillator output / CLKO |
| פין 10 | PWM1H — Motor Control PWM 1 high-side output |
| פין 11 | PWM1L — Motor Control PWM 1 low-side output |
| פין 12 | PWM2H — Motor Control PWM 2 high-side output |
| פין 13 | PWM2L — Motor Control PWM 2 low-side output |
| פין 14 | PWM3H — Motor Control PWM 3 high-side output |
| פין 15 | PWM3L — Motor Control PWM 3 low-side output |
| פין 16 | RB0 — GPIO / PGD programming data |
| פין 17 | RB1 — GPIO / PGC programming clock |
| פין 18 | RB2 — GPIO / analog input AN8 |
| פין 19 | RB3 — GPIO / analog input AN9 |
| פין 20 | RB4 — GPIO |
| פין 21 | RB5 — GPIO |
| פין 22 | RB6 — GPIO |
| פין 23 | RB7 — GPIO |
| פין 24 | RC0 — GPIO |
| פין 25 | RC1 — GPIO |
| פין 26 | RC2 — GPIO |
| פין 27 | VBAT — RTCC backup battery supply |
| פין 28 | VSS — Ground reference (QFN exposed pad also) |
יישומים טיפוסיים
PIC24FJ32MC102-E/ML מתאים עבור 7 יישוםs: Ceiling Fan BLDC Motor Control, Small Pump Motor Control (PMSM/BLDC), RC Servo and Robotics Drives, White Goods Motor Controllers (Washing Machine Pumps, Dishwashers), Capacitive Touch User Interfaces, Battery-Powered Toys and Personal Mobility, Industrial Low-Voltage 24V/36V Drives.
Ceiling Fan BLDC Motor Control
The PIC24FJ32MC102 is a strong fit for ceiling fan BLDC motor controllers because its three Motor Control PWMs (MCPWM) directly drive a 3-phase inverter bridge at switching frequencies up to 16 kHz, while three on-chip analog comparators perform back-EMF zero-crossing detection for sensorless commutation. The 16 MIPS performance is sufficient for PI speed loops, and the 32KB Flash holds the motor-control state machine plus Microchip's AN1078 sensorless BLDC library. In a typical design, the MCU sits on a 3.3V rail with three N-FETs driving the motor phases, an inline shunt for current sensing, and a 10uF decoupling cap on VDD. Compared with a discrete 8-bit MCU plus external gate logic, this single-chip solution reduces BOM and PCB area for cost-sensitive white-goods designs.
מומלץ
Small Pump Motor Control (PMSM/BLDC)
For small water pumps and circulation pumps using PMSM or BLDC motors, the PIC24FJ32MC102-E/ML provides the integrated MCPWM, comparators, and CTMU needed for sensorless FOC or trapezoidal commutation. The CTMU enables precise time-of-flight measurement for liquid level detection in the same MCU without external ICs, while the RTCC schedules pump on/off cycles to reduce energy waste. The 32KB Flash holds field-oriented control (FOC) libraries from Microchip with margin for application customization. Compared with the PIC24FJ16MC102, this part doubles code space, allowing more sophisticated pump algorithms and additional diagnostics.
מומלץ
RC Servo and Robotics Drives
The PIC24FJ32MC102-E/ML is well matched to RC servo and small robotics drives that require PWM generation with high update rates and low-latency loop control. The three 16-bit timers can each generate independent PWM channels for up to three servos from one MCU, and the 10-bit ADC at 500 ksps reads potentiometer or sensor inputs for closed-loop position control. The PIC24F core's 16-bit arithmetic simplifies fractional math in PID loops, and the 2KB RAM comfortably holds the runtime state for 3-axis control. Designers can use the same MCPWM infrastructure for brushed DC motors, stepper drives, or hobby-grade BLDC motors, with Microchip's free MPLAB X IDE libraries reducing firmware effort.
מומלץ
White Goods Motor Controllers (Washing Machine Pumps, Dishwashers)
White goods such as washing machine drain pumps and dishwasher circulation pumps benefit from the PIC24FJ32MC102-E/ML's extended temperature range (-40 C to +125 C), its integrated motor-control peripherals, and its long-life industrial-grade Flash. The MCPWM drives the 3-phase bridge, the comparators handle current limit and overcurrent protection, and the CTMU can be used for capacitive water level detection, eliminating mechanical pressure switches. The 32KB Flash holds application code, fault logs, and self-test routines. Compared with a discrete MCU plus external motor-control ASIC, the integrated approach reduces board area, BOM cost, and EMI complexity in appliance designs.
מומלץ
Capacitive Touch User Interfaces
The PIC24FJ32MC102-E/ML's CTMU (Charge Time Measurement Unit) enables reliable capacitive touch sensing on up to 16 channels via the ADC and PPS routing, eliminating the need for a dedicated touch controller IC. Designers can implement touch buttons, sliders, and proximity sensors directly on the motor-control PCB, sharing the MCU with the main motor-control loop. The 32KB Flash holds both the touch firmware library and the motor-control code, and the 16 MIPS performance allows 10 ms touch-scan rates without disturbing motor-control timing. Typical applications include touch panels on washing machines, induction cooktops, and smart appliances.
מומלץ
Battery-Powered Toys and Personal Mobility
For battery-powered toys, e-bike dashboard motor controllers, and personal-mobility scooter drives, the PIC24FJ32MC102-E/ML delivers low-power operation thanks to its Sleep mode with RTCC running from VBAT, and its 16 MIPS active-mode performance for responsive motor control. The integrated RTCC enables wake-up alarms and scheduling, while the MCPWM and comparators drive small BLDC motors used in propellers or traction. The 28-pin QFN (6x6) package fits on small, dense PCBs typical of toys and personal-mobility devices. Designers can re-use Microchip's motor-control libraries to shorten time-to-market for new SKUs.
מומלץ
Industrial Low-Voltage 24V/36V Drives
The PIC24FJ32MC102-E/ML operates from a regulated 3.3V rail that can be derived from industrial 24V or 36V buses via a step-down regulator, and its extended temperature grade (-40 C to +125 C) is suitable for industrial cabinet environments. Its MCPWM, comparators, and 10-bit ADC handle small industrial drives such as conveyor diverters, packaging machine rollers, and small fans. The PIC24F core's deterministic interrupt latency and 16-bit arithmetic simplify real-time control loops, while the PPS peripheral pin select simplifies PCB routing in dense industrial designs. Industrial designers benefit from Microchip's longevity program that commits to long-term availability for embedded microcontrollers.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC24FJ32MC102-E/ML — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC24FJ32MC102-I/ML | PIC24FJ16MC102-E/ML | PIC24FJ64MC102-E/ML | PIC24FJ32MC101-E/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-QFN (6x6) | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same | 28-QFN (6x6) - same |
| Flash | 32 KB | 32 KB (same) | 16 KB (-50%) | 64 KB (+100%) | 32 KB (same) |
| MCPWM Outputs | 3 (H/L pairs) | 3 (same) | 3 (same) | 3 (same) | 3 (same) |
| Analog Comparators | 3 | 3 (same) | 3 (same) | 3 (same) | 3 (same) |
| Performance | 16 MIPS @ 32 MHz | 16 MIPS (same) | 16 MIPS (same) | 16 MIPS (same) | 16 MIPS (same) |
| Temperature Range | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended, same) | -40 C to +125 C (Extended, same) | -40 C to +125 C (Extended, same) |
| Q1 / Automotive Grade | No | No | No | No | No |
מבדילים עיקריים
- Integrated motor-control peripherals (3x MCPWM + 3 comparators + CTMU) in a 28-pin QFN (לעומתPIC24FJ16GA004-E/PT)
- Peripheral Pin Select (PPS) for flexible I/O mapping (לעומתPIC24FJ16MC101-E/SS)
- CTMU enables capacitive touch and precise time-of-flight in the same MCU (לעומתPIC24FJ32GA102-I/SO)
הערות תכנון
The PIC24FJ32MC102-E/ML requires a regulated 3.0V to 3.6V supply on VDD and VDDC pins. Per the Microchip datasheet, place a 10uF bulk capacitor close to VDD and a 0.1uF ceramic decoupling cap within 5 mm of each VDD pin. Use a low-ESR ceramic such as X7R 10uF to handle MCPWM switching transients. The VBAT pin powers the RTCC when VDD is absent; if RTCC backup is unused, tie VBAT to VDD. A 3.3V LDO such as MCP1700-33 is recommended for stable operation from 5V or higher rails.
The 28-pin QFN (6x6) package requires a properly designed land pattern following the Microchip package outline. The exposed thermal pad on the underside MUST be soldered to a continuous ground pour for thermal dissipation and electrical ground; use thermal vias in a 3x3 array under the EP to improve heat transfer. Place the ICSP programming header (PGECx/PGEDx on RB1/RB0) with a 0.1 inch pitch 2x5 header to enable in-circuit programming. Keep the MCPWM output traces short and direct to the gate driver to minimize ringing.
A common pitfall when designing with the PIC24FJ32MC102 is misconfiguring the Peripheral Pin Select (PPS) registers. PPS must be unlocked, configured, then locked back; an unlocked PPS may cause peripherals to malfunction on a warm reset. Another pitfall is using the wrong temperature grade for the application: the -E (Extended) suffix covers -40 C to +125 C, while the -I (Industrial) suffix covers -40 C to +85 C. Choosing the -I grade in a +100 C motor application will fail qualification. Finally, ensure the ICSP pins (PGECx/PGEDx) are not driven by external circuitry during programming or the device may fail to enter programming mode.
The MCPWM outputs can produce fast switching edges (10-50 ns) that inject switching noise into analog inputs. To preserve the 10-bit ADC accuracy, separate the analog and power grounds, and use a ground cut to keep high-di/dt currents from the analog section. Add an RC snubber (10 ohm + 1 nF) on each MCPWM output near the gate driver if ringing exceeds 1 V. CTMU timing accuracy depends on a clean VDD; if the CTMU is used for capacitive touch, isolate its analog pins from high-impedance signal traces to prevent capacitive coupling.
מידע על תאימות
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified; for automotive motor-control applications, consider dsPIC33 variants. Extended temperature grade (-E suffix) covers -40 C to +125 C industrial use cases.
