Microchip PIC18F25K50T-I/SO 8-bit Microcontroller Overview and Application Guide
The Microchip PIC18F25K50T-I/SO represents a versatile and powerful member of the enhanced mid-range PIC18 family. This 8-bit microcontroller is engineered to deliver a compelling blend of performance, power efficiency, and peripheral integration, making it an ideal solution for a vast array of embedded control applications, from industrial and automotive systems to consumer electronics and Internet of Things (IoT) devices.
Housed in a 28-pin SOIC (Small Outline Integrated Circuit) package, this device is designed for space-constrained applications requiring surface-mount technology. At its core lies a high-performance 8-bit RISC CPU capable of operating at speeds up to 48 MHz, offering a substantial 16 MIPS of throughput. This ensures responsive and deterministic control for time-sensitive tasks.
A standout feature of the PIC18F25K50T is its integrated USB 2.0 Full-Speed (12 Mbps) module with on-the-go (OTG) support. This built-in capability allows the microcontroller to act as either a USB host or a peripheral device, simplifying the design of interfaces for PC connectivity, data logging, or charging other devices without requiring external components.
Memory resources are robust for its class, featuring 32 KB of self-read/write capable Flash program memory, 2 KB of RAM, and 1 KB of data EEPROM. This provides ample space for complex application code, dynamic data handling, and non-volatile storage of critical parameters.
The microcontroller excels in power management. It incorporates nanoWatt XLP (eXtreme Low Power) technology, enabling it to operate in power-sensitive battery-powered applications. It can achieve deep sleep currents as low as 20 nA, dramatically extending battery life. This is complemented by a suite of sophisticated peripherals, including:

Multiple Communication Interfaces: EUSART, SPI, and I2C modules for seamless communication with sensors, displays, and other ICs.
Analog Capabilities: A 10-bit Analog-to-Digital Converter (ADC) with up to 13 channels for precise sensor data acquisition.
Timers and CCP: Multiple timers, along with Capture/Compare/PWM (CCP) modules, are essential for generating precise waveforms, measuring digital signals, and controlling motors.
Application areas for the PIC18F25K50T-I/SO are extensive. Its USB functionality makes it perfect for designing custom Human Interface Devices (HID) like game controllers, USB-to-serial converters, and data acquisition modules. Its analog and control features suit it for sensor hubs, environmental monitors, and motor control units. Furthermore, its low-power特性 make it a prime candidate for portable medical devices, remote sensors, and various IoT end nodes that require reliable, connected operation with minimal energy consumption.
In summary, the PIC18F25K50T-I/SO is a highly integrated and flexible microcontroller that successfully balances processing power, extensive peripheral integration, and exceptional energy efficiency.
ICGOODFIND: The PIC18F25K50T-I/SO is a feature-rich, USB-enabled 8-bit MCU that stands out for its ultra-low power consumption with XLP technology and its high level of integration, making it a top-tier choice for developers creating connected, power-efficient embedded systems.
Keywords: USB Microcontroller, Low-Power (nanoWatt XLP), 8-bit PIC MCU, Embedded Systems, Peripheral Integration.
