PIC18F4431-I/P 8-Bit Flash Microcontroller with Power Control PWM and QEI DIP-40 (PIC18F4431-I/P DIP IC)
The PIC18F4431-I/P is a specialized, high-performance 8-bit Flash microcontroller from Microchip’s advanced PIC18 family, specifically engineered for high-precision motor control and motion feedback applications. Housed in a standard 40-pin DIP package, it features an enhanced "Power Control PWM" module with 8 channels capable of complementary outputs and dead-band generator, making it ideal for 3-phase motor drives. It also includes a dedicated Quadrature Encoder Interface (QEI) for precise position and velocity tracking. With 16KB of Flash program memory, 768 bytes of RAM, and a high-speed 200ksps 10-bit ADC, this IC provides the processing power and specialized hardware required for complex closed-loop control systems.
This IC is a top choice for industrial and robotics engineers in India for building DIY BLDC motor controllers, solar inverters, and high-precision CNC motion stages. It is a highly effective component for Arduino-based electronics projects that require advanced timing and feedback mechanisms not found in general-purpose microcontrollers, such as automated guided vehicles (AGVs) and smart servo systems in a 40-pin DIP footprint.
Key Features
- High-performance RISC CPU with 75 instructions (optimized for C)
- 14-bit Power Control PWM module (8 channels) for motor control
- Motion Feedback Module with Quadrature Encoder Interface (QEI)
- Three independent Input Capture channels for pulse-width measurement
- High-speed, 200ksps 10-bit Analog-to-Digital Converter (ADC) with 9 channels
- 16KB Flash program memory (100,000 erase/write cycles)
- 256 Bytes of high-endurance Data EEPROM
- Internal Oscillator Block with 8 user-selectable frequencies (31kHz to 8MHz)
- Advanced nanoWatt Technology for eXtreme Low Power management
- 36 bidirectional I/O pins with high current source/sink (25mA)
Specifications
- IC Type = 8-Bit Flash Microcontroller (Motor Control Series)
- Program Memory = 16KB (8192 Words)
- Data RAM = 768 Bytes
- Data EEPROM = 256 Bytes
- ADC Resolution = 10-Bit (9 Channels, 200ksps)
- Maximum Speed = 40MHz (10 MIPS)
- I/O Pins = 36 (Ports A, B, C, D, and E)
- Supply Voltage = 4.2V to 5.5V
- Current Sink/Source = 25mA
- Package Type = PDIP-40
- Number of Pins = 40
- Mounting Type = Through-Hole
- Operating Temperature = -40 to 85 degrees Celsius
Interfaces
- PIN 1 (MCLR/VPP/RE3) = Master Clear / Programming Voltage
- PIN 2 to 7 (RA0 to RA5) = Port A / Analog Inputs / QEI Inputs
- PIN 8 to 10 (RE0 to RE2) = Port E / Analog Inputs / PWM Faults
- PIN 11, 32 (VDD) = Positive Supply Voltage (5V)
- PIN 12, 31 (VSS) = Ground (0V)
- PIN 13, 14 (OSC1, OSC2) = External Crystal/Oscillator Inputs
- PIN 15 to 18, 23 to 26 (RC0 to RC7) = Port C / Timers / CCP / USART / SPI / I2C
- PIN 19 to 22, 27 to 30 (RD0 to RD7) = 8-Bit Port D / Power Control PWM Outputs
- PIN 33 to 40 (RB0 to RB7) = 8-Bit Port B / External Interrupts / PWM Outputs / ICSP
