The PIC24FJ128GA110 is a 16-bit microcontroller made by Microchip Technology, part of their PIC24F family. It's designed for general-purpose embedded applications where low power, moderate performance, and rich peripheral support are required.
🔹 Key Features of PIC24FJ128GA110
| Category | Details |
|---|---|
| Core | 16-bit PIC24F, based on modified Harvard architecture |
| Clock Speed | Up to 32 MHz (16 MIPS) |
| Program Memory | 128 KB Flash |
| RAM | 8 KB SRAM |
| I/O Pins | 85 general-purpose I/O pins (depends on package) |
| Package Types | Available in 100-pin TQFP and VTLA |
| Power Supply | Operates from 2.0V to 3.6V |
| Low Power Modes | Idle, Sleep, Doze, and Deep Sleep |
| Timers | Multiple 16-bit and 32-bit timers |
| ADC | 10-bit, up to 24 channels |
| Communication Interfaces | - 3 x UART - 3 x SPI - 3 x I²C - 1 x Parallel Master Port (PMP) |
| Watchdog Timer | Yes |
| RTCC | Real-Time Clock and Calendar |
| EEPROM Emulation | Flash-based |
🧠What It’s Used For
This microcontroller is suitable for:
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Industrial control
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Medical devices
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Consumer electronics
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Battery-powered products
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Sensor interfacing and data logging
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Graphical displays via PMP (Parallel Master Port)
🔌 Unique Features
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Parallel Master Port (PMP): Useful for connecting to LCDs and external memory.
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Rich peripheral set: Allows complex embedded designs without extra chips.
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16-bit architecture: Offers more performance and precision than typical 8-bit PICs, but still lower power and simpler than 32-bit MCUs.
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Peripheral Pin Select (PPS): Flexible assignment of peripheral functions to I/O pins.
🧯 Comparison with Other Microcontrollers
| Feature | PIC24FJ128GA110 | Arduino Uno (ATmega328P) | STM32F103C8T6 ("Blue Pill") |
|---|---|---|---|
| Architecture | 16-bit | 8-bit | 32-bit ARM Cortex-M3 |
| Flash | 128 KB | 32 KB | 64–128 KB |
| I/O Pins | Up to 85 | ~20 | ~37 |
| Speed | 32 MHz | 16 MHz | 72 MHz |
| ADC Channels | 24 | 6 | 10–12 |
| Low Power Modes | Yes (many) | Limited | Yes |
| PMP Interface | Yes | No | No |
📘 Summary
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PIC24FJ128GA110 is a powerful mid-range 16-bit microcontroller.
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Excellent choice for low-power, high-I/O, and rich peripheral applications.
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Ideal for embedded engineers who want more performance and flexibility than 8-bit MCUs without the complexity of 32-bit ARM.
Would you like a basic example project or a comparison table with other PIC24F variants?
