CY8C21345-24SXI
8-bit programmable system-on-chip microcontrollers with flash memory
Manufacturer： ['cypress', 'cypress-semiconductor']
series introduction
# Introduction to the CY8C21345 - 24SXI Product Series
## Overview
The CY8C21345 - 24SXI is a remarkable product series from Cypress Semiconductor, now part of Infineon Technologies. This series of microcontrollers is designed to offer a high - level of integration, performance, and flexibility, making it suitable for a wide range of applications in the embedded systems domain.
## Key Features
### 1. Microcontroller Core
- **8 - bit CPU**: The CY8C21345 - 24SXI is built around an 8 - bit CPU core. This core provides sufficient processing power for many mid - range embedded applications. It can handle tasks such as data processing, control algorithms, and interfacing with various peripherals efficiently.
- **Low - power operation**: One of the significant advantages of this microcontroller is its low - power consumption. It is designed with power - saving modes that can be utilized depending on the application requirements. For example, in standby or sleep modes, the power consumption is significantly reduced, making it ideal for battery - powered devices.
### 2. Memory
- **Flash Memory**: It comes equipped with a certain amount of on - chip flash memory. This non - volatile memory is used to store the program code. The flash memory allows for easy reprogramming, enabling developers to update the firmware of the device during the development phase or in the field.
- **RAM**: The microcontroller also has a dedicated amount of Random Access Memory (RAM). The RAM is used for storing temporary data during the execution of the program, such as variables, buffers, and intermediate results.
### 3. Peripherals
#### General - Purpose Input/Output (GPIO)
- The CY8C21345 - 24SXI offers a set of GPIO pins. These pins can be configured as either input or output pins according to the application needs. They can be used to interface with external devices such as sensors, switches, LEDs, and other digital components.
#### Analog - to - Digital Converter (ADC)
- An integrated ADC is present in the microcontroller. This ADC allows the conversion of analog signals from external sensors (such as temperature sensors, light sensors, etc.) into digital values that can be processed by the CPU. The ADC typically has a certain resolution (e.g., 8 - bit or 10 - bit), which determines the accuracy of the analog - to - digital conversion.
#### Timer/Counters
- Multiple timer/counter modules are available in the CY8C21345 - 24SXI. These timers can be used for various purposes, such as generating time delays, measuring time intervals, and generating PWM (Pulse Width Modulation) signals. PWM signals are commonly used for controlling the speed of motors, dimming LEDs, and other applications that require variable power control.
#### Serial Communication Interfaces
- **UART (Universal Asynchronous Receiver - Transmitter)**: It supports UART communication, which is widely used for serial data transfer between the microcontroller and other devices such as computers, sensors, or other microcontrollers. UART allows for simple and reliable communication over a serial link.
- **SPI (Serial Peripheral Interface)**: The SPI interface provides a high - speed serial communication option. It is often used for communicating with external devices such as memory chips, sensors, and displays. SPI allows for full - duplex communication and can achieve relatively high data transfer rates.
## Package and Pinout
The CY8C21345 - 24SXI is available in a specific package, which is the 24 - pin SXI package. This package offers a compact form factor, making it suitable for applications where space is limited. The pinout
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