PC9S08QE

series introduction

# Introduction to the PC9S08QE Product Series

## 1. Overview
The PC9S08QE product series is a remarkable line of microcontrollers developed by NXP Semiconductors. These microcontrollers are designed to offer a high - performance, cost - effective, and feature - rich solution for a wide range of embedded applications. With their advanced architecture and comprehensive set of peripherals, they are well - suited for use in consumer electronics, industrial control, automotive systems, and more.

## 2. Key Features

### 2.1 CPU Core
- **HCS08 Core**: The PC9S08QE series is based on the HCS08 central processing unit (CPU) core. This 8 - bit core offers a good balance between performance and power consumption. It has a simple yet efficient instruction set that allows for fast execution of code, enabling developers to write compact and optimized programs.
- **High - Speed Operation**: The core can operate at relatively high clock frequencies, which can be configured according to the application requirements. This high - speed operation ensures that the microcontroller can handle real - time tasks efficiently, such as data processing and control algorithms.

### 2.2 Memory
- **Flash Memory**: These microcontrollers come equipped with on - chip flash memory. The flash memory provides non - volatile storage for the program code, allowing the microcontroller to retain its functionality even when the power is turned off. The capacity of the flash memory in the PC9S08QE series is sufficient to store medium - sized to large - sized application programs, giving developers the flexibility to implement complex features.
- **Random - Access Memory (RAM)**: A dedicated block of RAM is available for storing variables, intermediate results, and data buffers during program execution. The adequate RAM size ensures smooth operation of the microcontroller, especially when dealing with data - intensive tasks.

### 2.3 Peripherals

#### 2.3.1 Serial Communication Interfaces
- **Serial Peripheral Interface (SPI)**: The SPI interface allows for high - speed serial communication between the microcontroller and other devices, such as sensors, displays, or external memory chips. It supports full - duplex communication and can operate at different clock speeds, making it suitable for a variety of applications.
- **Inter - Integrated Circuit (I2C)**: The I2C interface is a widely used serial communication protocol for connecting multiple devices on a single bus. It is ideal for communicating with low - speed devices, such as EEPROMs, temperature sensors, and other I2C - compatible peripherals. The PC9S08QE series provides a reliable I2C interface with support for multiple slave addresses.
- **Universal Asynchronous Receiver/Transmitter (UART)**: The UART interface enables asynchronous serial communication, which is commonly used for communication with other microcontrollers, computers, or serial devices. It supports different baud rates and data formats, making it easy to integrate the microcontroller into existing communication systems.

#### 2.3.2 Analog - to - Digital Converter (ADC)
- The PC9S08QE series is equipped with an ADC module that allows the microcontroller to convert analog signals into digital values. This is extremely useful in applications where analog sensors, such as temperature sensors, pressure sensors, or light sensors, are used. The ADC has a certain resolution and sampling rate, which can accurately capture the analog input signals and provide digital data for further processing.

#### 2.3.3 Timer Modules
- Multiple timer modules are available in the PC9S08QE series. These timers can be used for a variety of purposes, such as generating accurate time delays, measuring time intervals, and generating pulse - width modulation (PWM) signals. PWM signals are commonly used in motor control applications to control the speed and direction of motors

Images for reference

64-LQFP

Datasheets

• MC9S08QE128 Series
• PDF 2

Partlist