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PIC18F2431-I/SO

MCHPPIC18F2431-I/SO

Microchip Technology
PIC PIC® 18F Microcontroller IC 8-Bit 40MHz 16KB (8K x 16) FLASH 28-SOIC
Active3,637 in stock
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Overview

The PIC18F2431-I/SO is an 8-bit microcontroller specifically engineered for high-performance motion control and power conversion applications. It features a dedicated 14-bit Power Control PWM module and a Quadrature Encoder Interface (QEI) to simplify the implementation of complex motor control algorithms. Operating at up to 40MHz, this device integrates a high-speed 10-bit ADC capable of 200ksps for rapid sensor feedback in closed-loop systems.

Why Choose This Part

This MCU stands out due to its hardware-based Motion Feedback Module, which reduces CPU overhead by handling encoder signals and motor position tracking in silicon. The 14-bit Power Control PWM provides superior resolution for fine-tuning motor speed and torque, while the nanoWatt Technology ensures efficient operation across various power modes.

Applications

Brushless DC (BLDC) Motor Control
Utilizes the Power Control PWM module and QEI to manage commutation and speed control in industrial or consumer motor drives.
Switch-Mode Power Supplies (SMPS)
Leverages the high-speed PWM and fast ADC for precise digital control of power conversion stages.
Uninterruptible Power Supplies (UPS)
Monitors input/output stages using the 10-bit HSADC while managing power switching via the 14-bit PWM.
Robotic Actuators
Uses the Motion Feedback Module and hardware QEI to process encoder signals for precise position control in robotic joints.

Key Specifications

Speed 40MHz
RAM Size 768 x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 24
Core Processor PIC
Package / Case 28-SOIC (0.295", 7.50mm Width)
Data Converters A/D 5x10b
Oscillator Type Internal
Program Memory Size 16KB (8K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 28-SOIC
Voltage - Supply (Vcc/Vdd) 4.2V ~ 5.5V

Getting Started

To begin development, use the MPLAB X IDE and the MPLAB XC8 compiler provided by Microchip. Hardware debugging and programming are best handled via the MPLAB PICkit 4 or ICD 4 in-circuit debuggers. For rapid prototyping, a custom PCB or a generic 28-pin SOIC breakout board can be used to interface with the 5V-tolerant I/O.

PIC18F2431 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
PIC18F2431-I/SO (this part) SOIC-28 3,637
PIC18F2431-I/SP DIP-28 596