PIC24FJ16MC101-I/P - 16-bit MCU, 16KB Flash, 20-PDIP | Microchip
MPN： PIC24FJ16MC101-I/P ✓ 啟用中PIC24FJ16MC101-I/P 概覽
What is a 16-bit microcontroller? A microcontroller (MCU) is a single-chip computer that integrates a CPU core, volatile and non-volatile memory, and programmable I/O peripherals. The 16-bit class bridges 8-bit parts (PIC16, AVR) and 32-bit Cortex-M devices, offering a better MIPS-per-mA and richer DSP math than 8-bit MCUs while staying cheaper and easier than 32-bit ARM. Within this hierarchy, the PIC24F family sits in Microchip's "low-power 16-bit" tier, with the MC subset adding dedicated motor-control peripherals.
Key features include up to 16 MIPS at 32 MHz CPU clock, a Charge Time Measurement Unit (CTMU) for capacitive touch and current measurement, six enhanced PWM channels with dedicated fault inputs, Peripheral Pin Select (PPS) for flexible remapping of digital peripherals, a 10-bit ADC up to 500 ksps with up to 9 channels, two UART/I2C/SPI modules, and five 16-bit timers. The 20-pin PDIP package offers generous creepage and is breadboard-friendly for prototypes and educational use.
The PIC24FJ16MC101 uses a modified Harvard architecture with a 16-bit wide data path, hardware multiply, and a C-friendly instruction set optimized for the MPLAB XC16 compiler. Its 16 MIPS throughput enables deterministic field-oriented control loops for small three-phase BLDC and stepper motors, while CTMU enables cap-touch user interfaces on the same chip.
Typical applications include small DC and BLDC motor drives for fans, pumps, appliances, drones, and toys; capacitive touch user interfaces; sensor nodes; and low-cost industrial control. The wide 3.0-5.5 V supply range simplifies integration with 3.3 V sensors or legacy 5 V logic.
When designing with this device, ensure the Vcap pin receives the 10 uF/470 nF decoupling pair required by the internal voltage regulator. Use PPS to route peripherals to convenient pins and verify that no analog pins are reused as digital outputs inadvertently. The 20-pin PDIP eliminates reflow constraints but limits high-speed signal integrity at >10 MHz.
This page synthesizes distributor pricing, same-family drop-in alternatives, and design notes not found in the manufacturer datasheet alone, giving engineers a complete BOM-ready reference.
直接替換替代品，適用於 PIC24FJ16MC101-I/P — 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： PIC24FJ16MC101-I/P （相同外形與佔位） — 差異在於 ADC, Mounting Type, Package, Program Memory (Flash), Timers.
PIC24FJ32MC101-I/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ16MC102-I/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24FJ32MC102-I/P
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
PIC24FJ16MC101-E/P
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →PIC24FJ16MC101-I/P 最大額定值與電氣特性
| Core Architecture | PIC24F (16-bit modified Harvard) |
| CPU Speed | 16 MIPS (32 MHz FOSC max) |
| Program Memory (Flash) | 16 KB (5.5K x 24 instructions) |
| RAM | 1 KB |
| Operating Voltage | 3.0 V to 5.5 V |
| 封裝 | 20-pin PDIP (P) |
| 腳位數 | 20 |
| ADC | 10-bit, up to 500 ksps, up to 9 channels |
| PWM Channels | 6 (Motor Control PWM with dedicated fault input) |
| Timers | 5 x 16-bit |
| Communication | 2 x UART/SPI/I2C |
| CTMU | Yes (Charge Time Measurement Unit) |
| PPS (Peripheral Pin Select) | Yes |
| 工作溫度 | -40 C to +85 C (Industrial, "I") |
| 安裝類型 | Through-Hole (DIP) |
| MSL 等級 | 1 (not applicable for through-hole) |
| RoHS 狀態 | Compliant |
| Lead-Free | Yes |
PIC24FJ16MC101-I/P 腳位配置
| 腳位 1 | MCLR — Master Clear (reset) input, active low; connect to VDD via 10 kohm resistor |
| 腳位 2 | RA0 — Port A bit 0 / analog input / digital I/O via PPS |
| 腳位 3 | RA1 — Port A bit 1 / analog input / digital I/O via PPS |
| 腳位 4 | RB0 — Port B bit 0 / analog input / ICSP programming data (PGED1) |
| 腳位 5 | RB1 — Port B bit 1 / analog input / ICSP programming clock (PGEC1) |
| 腳位 6 | RB2 — Port B bit 2 / analog input / digital I/O via PPS |
| 腳位 7 | RB3 — Port B bit 3 / analog input / digital I/O via PPS |
| 腳位 8 | VSS — Ground reference |
| 腳位 9 | OSCI — Crystal oscillator input or external clock |
| 腳位 10 | OSCO — Crystal oscillator output |
| 腳位 11 | RA2 — Port A bit 2 / analog input / digital I/O via PPS |
| 腳位 12 | RA3 — Port A bit 3 / analog input / digital I/O via PPS |
| 腳位 13 | RA4 — Port A bit 4 / analog input / digital I/O via PPS |
| 腳位 14 | RA5 — Port A bit 5 / analog input / digital I/O via PPS |
| 腳位 15 | VSS — Ground reference (second VSS pin) |
| 腳位 16 | RA6 — Port A bit 6 / analog input / digital I/O via PPS |
| 腳位 17 | RA7 — Port A bit 7 / analog input / digital I/O via PPS |
| 腳位 18 | Vcap — Internal 2.5V regulator output; 10uF bulk + 470nF ceramic required |
| 腳位 19 | VSS — Ground reference |
| 腳位 20 | VDD — Positive supply 3.0V to 5.5V |
典型應用
PIC24FJ16MC101-I/P 適用於 6 應用s: Brushed DC Motor Control, Capacitive Touch User Interface, Small BLDC / Fan Control, Appliance Control Board, Battery-Powered IoT Sensor Node, Educational / Hobby Robotics.
Brushed DC Motor Control
The PIC24FJ16MC101-I/P's six MCPWM channels with fault inputs are ideal for brushed DC motor drives used in small appliances, toys, and linear actuators. Its 16 MIPS throughput easily handles a 1 kHz PI speed loop, while CTMU enables current sensing via a shunt resistor. The 20-pin PDIP allows hand-solderable prototypes for hobby robotics and STEM education platforms where cost dominates over PCB density.
推薦
Capacitive Touch User Interface
With integrated CTMU and PPS, the PIC24FJ16MC101-I/P replaces a separate touch-sensing IC by timing the charge of button and slider pads through a controlled current source. The 16 MIPS core debounces and filters touches in firmware while running an LED driver on the same chip. The 3.0-5.5 V supply simplifies direct connection to 5 V LED backlights in white goods and IoT control panels.
推薦
Small BLDC / Fan Control
The PIC24FJ16MC101-I/P drives sensorless BLDC fans and pumps up to about 50 W using back-EMF zero-crossing detection on its 10-bit ADC. The MCPWM generates complementary 3-phase switching at 25 kHz, leaving CPU headroom for a closed-loop RPM controller. Through-hole PDIP is favored for service-replaceable fan controllers in HVAC and PC cooling where field-replacement matters more than PCB area.
推薦
Appliance Control Board
Household appliances such as coffee machines, slow cookers, and washing-machine sub-modules use the PIC24FJ16MC101-I/P to consolidate user I/O, sensor reads, and heater/pump timing on one MCU. The wide 3.0-5.5 V supply eliminates a separate regulator for 5 V relays and triacs, while CTMU handles cap-touch front panels. Industrial -I temperature grade meets IEC 60335 household appliance requirements.
推薦
Battery-Powered IoT Sensor Node
The PIC24FJ16MC101-I/P's nanoWatt XLP sleep modes and 3.0 V minimum supply allow multi-year battery life for remote sensor nodes reading temperature, humidity, or vibration. Sleep current in the microamp range combined with CTMU wake-on-touch makes it a candidate for door/window sensors and smart-home buttons. UART or I2C links to an external radio module such as MRF24J40 for sub-GHz mesh networking.
推薦
Educational / Hobby Robotics
Universities and makers favor the 20-pin PDIP PIC24FJ16MC101-I/P because it is breadboard-friendly and inexpensive yet powerful enough to teach real-time motor control, ADC sampling, and interrupt-driven firmware. The MPLAB X IDE plus XC16 compiler is free and supports C, while the PICkit 4 programmer clips directly to the ICSP pins. It is a natural step up from PIC16F84A for students who have outgrown 8-bit parts.
推薦
推薦產品摘要
工程參考資料，適用於 PIC24FJ16MC101-I/P — 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 | PIC24FJ32MC101-I/P | PIC24FJ16MC102-I/P | PIC24FJ32MC102-I/P | PIC24FJ16MC101-E/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin PDIP | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same | 20-pin PDIP - same |
| Program Flash | 16 KB | 32 KB | 16 KB | 32 KB | 16 KB |
| RAM | 1 KB | 2 KB | 2 KB | 2 KB | 1 KB |
| CPU Speed | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| MCPWM Channels | 6 | 6 | 6 | 6 | 6 |
| CTMU | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) |
主要差異化特點
- Integrated Motor-Control PWM with fault input (對比PIC24FJ16GA002-I/SP)
- On-chip CTMU for capacitive touch (對比PIC24FJ32MC104-I/PT)
- Same-family scalability without PCB rework (對比PIC24FJ16MC101-I/SO (SOIC))
設計說明
The PIC24FJ16MC101-I/P requires a 10 uF bulk capacitor plus a 470 nF ceramic capacitor on the Vcap pin (pin 18) to stabilize the internal 2.5 V core regulator. Use X5R or X7R ceramic dielectrics; Y5V loses 80% capacitance at 5 V and may cause brownouts under load transients. Place both capacitors within 3 mm of the Vcap pad with a short trace to the device's exposed pad (none on PDIP), and do not route noisy digital signals under them.
The 20-pin PDIP is forgiving for hand soldering, but the high-current motor traces and the ICSP programming pins (PGEC1/PGED1, pins 4 and 5) should not cross. Add a 100 nF decoupling cap directly on VDD (pin 20) to ground (pin 19) plus a 10 uF bulk near the supply pin. Keep the analog AVdd/AVss (shared with digital on this device) away from PWM switching nodes by at least 5 mm to avoid ADC noise coupling.
When using PPS, peripherals default to specific pins and remapping must be unlocked by writing to the IOLOCK bit. A common pitfall is forgetting to relock IOLOCK after configuration, leaving the part vulnerable to accidental pin-map changes via errant firmware writes. Also note that pins RB0/RB1 serve dual duty as ICSP programming data/clock - if these are pulled low at reset, the MCU enters debug mode rather than running the application firmware.
Route the MCPWM outputs as differential pairs to the gate driver inputs and keep the fault input (FLTA) trace short and direct to the comparator output. Place the shunt resistor for current sensing within 10 mm of the ADC pin to minimize ground-loop noise, and use a Kelvin connection across the shunt to avoid parasitic resistance. If the design uses CTMU for capacitive touch, guard traces with GND on both sides of each touch pad to prevent false triggers.
