PIC18F24K22-I/SS
8-bit microcontrollers with 16KB Flash, low power, 28-pin SSOP packaging
Manufacturer： microchip
series introduction
# Introduction to the PIC18F24K22 - I/SS Product Series
## 1. Overview
The PIC18F24K22 - I/SS is part of Microchip Technology's PIC18F K22 family of 8 - bit microcontrollers. These microcontrollers are designed to offer a balance of performance, features, and cost - effectiveness, making them suitable for a wide range of embedded applications. The "I/SS" in the part number typically refers to the specific package type and temperature range, with "SS" often indicating a small - scale surface - mount package, which is ideal for space - constrained designs.
## 2. Key Features
### 2.1 CPU and Memory
- **CPU Core**: It is based on an enhanced Harvard architecture 8 - bit RISC CPU. This architecture allows for simultaneous access to program and data memory, enabling efficient execution of instructions. The CPU can operate at a maximum frequency of up to 64 MHz, providing relatively high processing power for an 8 - bit microcontroller.
- **Program Memory**: The PIC18F24K22 - I/SS comes with 16 KB of Flash program memory. Flash memory is non - volatile, which means that the program code stored in it is retained even when the power is turned off. This allows for easy reprogramming during development and in - field updates.
- **Data Memory**: It has 768 bytes of RAM (Random Access Memory) for storing variables and intermediate data during program execution. Additionally, there is 256 bytes of EEPROM (Electrically Erasable Programmable Read - Only Memory), which can be used to store non - volatile data such as calibration values or user settings.
### 2.2 Peripherals
#### 2.2.1 Communication Interfaces
- **USART (Universal Synchronous/Asynchronous Receiver/Transmitter)**: This interface supports both synchronous and asynchronous serial communication. It can be used to communicate with other microcontrollers, sensors, or devices that use serial communication protocols such as RS - 232, RS - 485, or SPI (Serial Peripheral Interface) in synchronous mode.
- **SPI**: The SPI interface allows for high - speed serial communication between the microcontroller and other SPI - compatible devices. It uses a master - slave architecture, where the PIC18F24K22 - I/SS can act as either the master or the slave. This is useful for communicating with external memory chips, sensors, or displays.
- **I²C (Inter - Integrated Circuit)**: The I²C interface is a multi - master, multi - slave serial communication protocol. It is commonly used for connecting low - speed devices such as sensors, EEPROMs, and real - time clocks. The PIC18F24K22 - I/SS supports both the standard and fast modes of I²C communication.
#### 2.2.2 Timers and Counters
- **Multiple Timers**: It is equipped with several timers, including 8 - bit and 16 - bit timers. These timers can be used for a variety of purposes, such as generating time delays, measuring time intervals, and generating PWM (Pulse Width Modulation) signals.
- **PWM Generation**: The PWM module can generate up to 4 independent PWM signals. PWM is widely used in applications such as motor control, LED dimming, and power regulation. The duty cycle and frequency of the PWM signals can be easily programmed.
#### 2.2.3 Analog - to - Digital Converter (ADC)
- **10 - bit ADC**: The PIC18F24K22 - I/SS features a 10 - bit ADC with up to
Images for reference
28-SSOP, M28
28-SOIC
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