PIC24FJ32MC101-E/SO - 16-bit 16 MIPS 32KB Flash MCU | Microchip
MPN： PIC24FJ32MC101-E/SO ✓ 啟用中PIC24FJ32MC101-E/SO 概覽
A 16-bit MCU (microcontroller unit) is a single-chip computer that combines a 16-bit CPU core, on-chip Flash program store, SRAM data memory, and a rich set of digital and analog peripherals. Within Microchip's taxonomy, PIC24F devices sit between 8-bit PIC16/PIC18 parts and the higher-performance dsPIC33/PIC32 families, and the PIC24FJ32MC101/102 sub-family is specifically aimed at ultra-low-cost motor-control applications, adding Motor Control PWM (MCPWM) and the Configurable Logic Cell (CTMU) for touch and timing functions.
Key features include 16 MIPS performance from a 32 MHz internal oscillator, 6-channel MCPWM with independent time bases for sensorless BLDC or brushed DC drives, a 10-bit 1.1 Msps Analog-to-Digital Converter with up to 9 input channels, Peripheral Pin Select (PPS) for flexible I/O mapping, and 5V-tolerant I/O for mixed-signal boards. The 32 KB Flash stores both application code and bootloader image, while the 2 KB RAM supports small TCP/IP stacks, sensor-fusion buffers, or GUI command queues. The integrated Charge Time Measurement Unit (CTMU) enables capacitive touch, line-voltage zero-cross detection, and basic flow measurement.
Typical applications include ceiling-fan and pump motor controllers, low-power HVAC blower drives, e-bike and small-EV pedal-assist control, white-goods BLDC modules, and USB-powered sensor hubs where the 5V-tolerant pins simplify interfacing to legacy 5V peripherals. The wide 20-SOIC body keeps the part friendly for hand-rework, while the PPS-remappable peripherals let designers shrink the PCB by routing UART, SPI, or PWM to whichever physical pins are left over.
When designing with this device, plan for the 5V-tolerant digital I/O requirement and remember that the 10-bit ADC reference is shared with the I/O supply. A 100 nF decoupling capacitor within 5 mm of VDD is recommended, and an external 32.768 kHz crystal plus the RTCC peripheral support real-time-clock functionality on battery-backed designs.
This page consolidates distributor pricing, drop-in alternatives from Microchip's PIC24F family, and practical design guidance that goes beyond the device datasheet PDF, helping engineers select between PIC24F MC variants without re-reading a 300-page family reference manual.
直接替換替代品，適用於 PIC24FJ32MC101-E/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC24FJ32MC101-E/SO （相同外形與佔位） — 差異在於 Package, Operating Temperature, Core, Operating Voltage, ADC.
PIC24FJ16MC101-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32MC101T-I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ32MC101-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32GA002-I/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC24FJ16GA002-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC24FJ32MC101-E/SO 最大額定值與電氣特性
| Series | PIC24FJ32MC101/102/104 |
| Core | PIC 16-bit |
| Program Memory | 32 KB Flash (11K x 24) |
| RAM | 2 KB |
| Maximum CPU Speed | 16 MIPS (32 MHz) |
| Operating Voltage | 3.3 V (2.0-3.6 V range) |
| 封裝 | 20-SOIC (7.50 mm body width) |
| 腳位數 | 20 |
| 工作溫度 | -40C to +125C (E suffix - extended) |
| I/O Pins | Up to 15 (PPS-remappable) |
| ADC | 10-bit, 1.1 Msps, up to 9 channels |
| Motor Control PWM | 6 channels (MCPWM) |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Pin Select | Yes (PPS) |
| I/O Tolerance | 5V-tolerant digital I/O |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant |
| MSL 等級 | 1 (unlimited) |
PIC24FJ32MC101-E/SO 腳位配置
| 腳位 1 | RA0 — Digital I/O / analog input AN0 |
| 腳位 2 | RA1 — Digital I/O / analog input AN1 / oscillator |
| 腳位 3 | RA2 — Digital I/O / analog input AN2 |
| 腳位 4 | RA3 — Digital I/O / analog input AN3 |
| 腳位 5 | RA4 — Digital I/O / analog input AN4 |
| 腳位 6 | VSS — Ground reference |
| 腳位 7 | VDD — Positive supply (3.3 V nominal) |
| 腳位 8 | OSCI/CLKI — External clock input or crystal connection |
| 腳位 9 | OSCO/CLKO — External crystal connection or clock output |
| 腳位 10 | MCLR — Master Clear (reset, active-low) |
| 腳位 11 | RB0 — Digital I/O / programming pin |
| 腳位 12 | RB1 — Digital I/O / programming pin |
| 腳位 13 | RB2 — Digital I/O |
| 腳位 14 | RB3 — Digital I/O |
| 腳位 15 | RB4 — Digital I/O |
| 腳位 16 | RB5 — Digital I/O |
| 腳位 17 | RB6 — Digital I/O / ICSP programming clock |
| 腳位 18 | RB7 — Digital I/O / ICSP programming data |
| 腳位 19 | VSS — Ground reference |
| 腳位 20 | AVDD — Analog positive supply (3.3 V) |
典型應用
PIC24FJ32MC101-E/SO 適用於 7 應用s: BLDC Ceiling Fan Motor Controller, Small Pump / Water-Pump Control Board, E-Bike Pedal-Assist and Small-EV Controller, HVAC Blower and Fan Drive, White-Goods Brushless DC Modules, USB-Powered Sensor Hub, Industrial Brushed-DC Servo Drive.
BLDC Ceiling Fan Motor Controller
The PIC24FJ32MC101-E/SO's 6-channel MCPWM delivers the three-phase complementary PWMs needed for sensorless BLDC fan drives, while the 10-bit ADC samples back-EMF on three unused phases for rotor-position detection. The 16 MIPS core handles zero-cross commutation in software, and the 32 KB Flash stores speed-vs-RPM lookup tables and user-mode settings. The -40C to +125C extended temp range tolerates closed-fixture thermal rise.
推薦
Small Pump / Water-Pump Control Board
Submersible and surface pumps use the PIC24FJ32MC101-E/SO to drive a single-direction brushed-DC or 1-phase BLDC motor via MCPWM, with the CTMU measuring flow-sensor pulse widths or dry-run detection. The 5V-tolerant I/O simplifies connection to legacy water-level sensors running at 5 V, and PPS lets the same firmware route signals to different PCB pin assignments across product variants.
推薦
E-Bike Pedal-Assist and Small-EV Controller
E-bike torque-assist controllers use the PIC24FJ32MC101-E/SO to read pedal-cadence inputs and throttle through the ADC, then drive a 3-phase BLDC hub motor via MCPWM. The 2 KB RAM holds short cadence-history buffers, and PPS simplifies wiring across different connector pinouts. The wide SOIC-20 package survives vibration environments that would crack smaller QFN packages.
推薦
HVAC Blower and Fan Drive
In HVAC indoor units the PIC24FJ32MC101-E/SO modulates a blower BLDC fan for closed-loop air-volume control using MCPWM and back-EMF sensing via the 10-bit ADC. The CTMU can implement capacitive user-button inputs, eliminating mechanical switches, while the -E temp grade handles attic-plenum thermal stress. The 32 KB Flash is enough for unit-specific calibration tables.
推薦
White-Goods Brushless DC Modules
Washing-machine drum motors, dishwasher pumps, and refrigerator compressors use the PIC24FJ32MC101-E/SO for direct sensorless or Hall-sensored FOC commutation thanks to the 6-channel MCPWM and 32 MHz operation. The integrated CTMU supports capacitive water-level or soil-sensor readings, and the wide SOIC footprint supports hand-rework on white-goods service lines.
推薦
USB-Powered Sensor Hub
Beyond motor control, the PIC24FJ32MC101-E/SO works well as a low-cost USB-CDC sensor hub: 5V-tolerant I/O tolerates 5V USB-IO expanders, 16 MIPS runs a small command parser, and CTMU handles one-wire / capacitive probes. 32 KB Flash holds USB stack plus application code, and PPS lets one PCB layout serve multiple end-product variants.
推薦
Industrial Brushed-DC Servo Drive
Industrial conveyor rollers and valve actuators use the PIC24FJ32MC101-E/SO to drive H-bridge brushed-DC motors through the MCPWM in complementary mode, with quadrature-encoder feedback read through the Input Capture peripheral. The -E temp grade keeps the MCU inside IP65 enclosures where ambient can hit +85 C, and 32 KB Flash stores commissioning constants.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FJ32MC101-E/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC24FJ16MC101-I/SO | PIC24FJ32MC101T-I/SO | PIC24FJ32MC101-I/SO | PIC24FJ32GA002-I/SO | PIC24FJ16GA002-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC (7.50 mm) | 20-SOIC (7.50 mm) - same | 20-SOIC (7.50 mm) - same | 20-SOIC (7.50 mm) - same | 20-SOIC (7.50 mm) - same | 20-SOIC (7.50 mm) - same |
| Flash | 32 KB | 16 KB | 32 KB | 32 KB | 32 KB | 16 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 8 KB | 4 KB |
| CPU Speed | 16 MIPS (32 MHz) | 16 MIPS (32 MHz) | 16 MIPS (32 MHz) | 16 MIPS (32 MHz) | 16 MIPS (32 MHz) | 16 MIPS (32 MHz) |
| MCPWM Channels | 6 | 6 | 6 | 6 | 0 (no MCPWM) | 0 (no MCPWM) |
| CTMU | Yes | Yes | Yes | Yes | No | No |
| Temperature Grade | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Unit Price (qty 1) | $3.42 | approx $2.95 | approx $3.42 (same die, T&R) | approx $3.20 | approx $3.05 | approx $2.85 |
主要差異化特點
- Dedicated 6-channel Motor Control PWM peripheral (對比PIC24FJ32GA002-I/SO)
- CTMU capacitive-touch and timing block (對比PIC24FJ32GA002-I/SO)
- Extended -40C to +125C temperature grade (對比PIC24FJ32MC101-I/SO)
- Wide-body SOIC-20 for hand-rework and high-vibration use (對比PIC24FJ32MC101-I/ML (QFN package))
設計說明
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin and a second 10 uF bulk capacitor at the board's power entry. The analog AVDD pin requires its own 100 nF decoupling cap tied to AVSS. Run both VSS and AVSS to a single ground star point to avoid ADC offset errors from ground bounce during MCPWM switching.
Keep analog input traces short and isolated from the MCPWM outputs and clock traces. Use a guard ring around sensitive ADC inputs (current-shunt amplifier outputs) and route the crystal traces to OSCI/OSCO with matched lengths and a ground plane beneath them. The 7.50 mm wide SOIC-20 body tolerates hand-soldering, but plan thermal relief on the copper pours to avoid lifted pads during rework.
Do not use the 5V-tolerant I/O to source 5V into the ADC reference pins - the ADC reference is tied to AVDD and operates only at 3.3V. PPS mapping must be unlocked before each change and re-locked after, otherwise unintended peripheral remapping can occur at startup. Always assert the MCLR pin through a 10 kohm pull-up and 100 nF cap to ground to avoid spurious resets on noisy motor-drive rails.
Estimated: At 32 MHz CPU clock and full MCPWM switching at 20 kHz, the average core current is 12 mA (typ) on VDD. Add a ferrite bead in series with the MCU's VDD pin when sharing a rail with gate-driver switching currents to prevent ground-shift ADC noise. Place the ICSP programming pins (RB6/RB7, MCLR) at the board edge with accessible test points for in-field firmware updates.
合規資訊
RoHS and lead-free per Microchip product page. AEC-Q100 qualified equivalent available under -VAO ordering code. Recommended for automotive design per Microchip's product family page.
