Overview
The PIC18F67K40-I/PT is an 8-bit high-performance microcontroller from Microchip’s PIC18 K40 series, designed for embedded systems requiring high reliability, rich peripherals, and low power consumption. Based on an enhanced PIC18 architecture, this device integrates large-capacity Flash memory, advanced analog peripherals, multiple communication interfaces, and flexible configurable logic modules (CLCs), meeting the application needs of industrial control, automotive electronics, smart homes, and IoT devices.
The PIC18F67K40 series MCUs integrate high-precision analog modules (such as ADCs, DACs, and comparators), multiple communication interfaces (SPI, I²C, and UART), and powerful timing control functions, enabling developers to implement complex control and data processing functions on a single chip. Meanwhile, its wide operating voltage range and industrial-grade temperature support ensure stable and reliable operation of devices in harsh environments.
Core parameters
| Parameter Items | Specification |
| CPU architecture | PIC18 Enhanced 8-bit MCU |
| Maximum clock speed | 64 MHz |
| Program memory (Flash) | 128 KB |
| SRAM | 8 KB |
| EEPROM | 1 KB |
| Operating voltage range | 1.8 V – 5.5 V |
| Number of I/O pins | Up to 65 GPIOs |
| ADC | 12-bit ADC, up to 35 channels |
| DAC | 8-bit DAC |
| comparator | Multiple analog comparators |
| Communication interface | UART ×4, SPI ×2, I²C ×2 |
| timer | Multiple 8/16-bit timers |
| PWM module | Multi-channel PWM |
| Operating temperature range | -40°C ~ +85°C (Industrial Grade) |
| Encapsulation type | TQFP-64 (PT) |
| Environmental standards | RoHS / Lead-free |
Features
1. High-Performance PIC18 Core
The PIC18F67K40 features an enhanced 8-bit architecture with a maximum operating frequency of up to 64 MHz, delivering efficient instruction execution suitable for real-time control and complex logic processing.
2. Rich Analog Peripheral Resources
The chip integrates a 12-bit ADC, DAC, comparators, and voltage reference modules, enabling direct connection to various sensors for high-precision data acquisition and analog signal processing.
3. Flexible Communication Interfaces
The device supports a variety of commonly used industrial communication interfaces—including SPI, I²C, and UART—facilitating data exchange between the system and external devices, sensors, or communication modules.
4. Configurable Logic Cells (CLC)
Simple logic control can be implemented via hardware logic modules, thereby reducing CPU load, improving system response speed, and lowering power consumption.
5. Low-Power Operating Modes
It offers multiple energy-saving modes—such as Idle, Sleep, and other low-power states—making it ideal for battery-powered devices or systems requiring long-term continuous operation.
6. High-Reliability Industrial-Grade Design
Supporting a wide voltage input range and an industrial-grade temperature range, the device is well-suited for complex industrial environments and equipment requiring long-term stable operation.
Typical application scenarios
Industrial automation control
PLC modules, sensor interfaces, equipment controllers, and other industrial automation systems.
Smart home devices
include smart lighting control, access control systems, and appliance control modules.
IoT terminal device
remote monitoring nodes, environmental monitoring systems, and wireless sensor devices.
Automotive electronic assistance system
body control module, sensor interface, and motor drive control.
Consumer Electronic Devices
Small controllers, handheld devices, and power management modules for consumer electronic devices .
Comparison of similar products
| Model | Flash | Clock speed | ADC | Features |
| PIC18F67K40 | 128KB | 64MHz | 12-bit | High-performance K40 series |
| PIC18F46K22 | 64KB | 64MHz | 10-bit | Classic PIC18 series |
| PIC16F18877 | 56KB | 32MHz | 10-bit | Mid-range 8-bit MCU |
Compared to the traditional PIC18 series, the PIC18F67K40 has significant advantages in analog functionality and configurable logic, making it more suitable for complex control systems.
Manufacturer Profile
Microchip Technology is a leading global supplier of embedded control solutions, offering a wide range of microcontrollers, analog chips, memory, and communication products.
The PIC series of MCUs is renowned for its stability, reliability, mature development ecosystem, and long-term supply, and is widely used in industrial control, automotive electronics, and consumer electronics.
Why choose PIC18F67K40-I/PT?
- PIC18 high-performance MCU with up to 64MHz
- 128KB Flash + 8KB RAM supports complex programs
- Abundant analog peripherals (ADC, DAC, comparators)
- Multiple communication interfaces meet industrial and embedded needs
- Low-power mode is suitable for IoT and battery-powered devices.
- Industrial-grade reliability design
- Mature Microchip development ecosystem
Frequently Asked Questions (FAQ)
Q1: Is the PIC18F67K40-I/PT suitable for low-power applications?
Yes. This MCU supports multiple power-saving modes (Idle, Sleep), and draws extremely low current in standby mode, making it ideal for battery-powered or portable devices. Furthermore, its on-chip oscillator and peripherals can continue operating in low-power modes, enabling flexible energy management.
Q2: Is it suitable for complex control or communication applications?
Yes. The PIC18F67K40-I/PT has a variety of built-in 16-bit and 8-bit timers, ADC/DAC, USART/I²C/SPI interfaces, etc., supporting complex control, data acquisition and communication tasks, and is suitable for industrial control, smart sensors and embedded communication systems.
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