# USART

> Motherboard chip

**Wikidata**: [Q11899328](https://www.wikidata.org/wiki/Q11899328)  
**Source**: https://4ort.xyz/entity/usart

## Summary
USART stands for Universal Synchronous/Asynchronous Receiver-Transmitter. It is an integrated circuit used on motherboards to facilitate serial communication. This chip enables data transmission between devices using both synchronous and asynchronous protocols.

## Key Facts
- Full name: Universal Synchronous/Asynchronous Receiver-Transmitter
- Instance of: Integrated circuit
- Part of: Motherboard
- Described as: Motherboard chip
- Aliases: USART
- Wikidata description: Motherboard chip
- Google Knowledge Graph ID: /g/120hhrrf
- Wikipedia languages: Finnish (fi)
- Sitelink count: 1

## FAQs
### Q: What is the purpose of a USART?
A: A USART facilitates serial data communication on a motherboard. It supports both synchronous and asynchronous data transfer modes, making it versatile for connecting peripheral devices.

### Q: Where is USART used?
A: USART is typically found on computer motherboards and other embedded systems. It serves as a communication interface between the central processing unit and external hardware components.

### Q: How does USART differ from UART?
A: While both handle serial communication, USART can operate in both synchronous and asynchronous modes. In contrast, UART only supports asynchronous communication.

## Why It Matters
The USART plays a critical role in enabling reliable serial communication within computing systems. By supporting both synchronous and asynchronous transmission methods, it provides flexibility in interfacing with various peripherals such as modems, sensors, and other microcontrollers. Its presence on motherboards ensures compatibility across different communication standards, contributing to system interoperability and performance efficiency. As an essential component in embedded systems and personal computers alike, the USART continues to support legacy and modern applications requiring stable data exchange mechanisms.

## Notable For
- Supporting both synchronous and asynchronous serial communication
- Being classified as an integrated circuit on the motherboard
- Having limited but precise documentation in technical contexts
- Serving as a foundational element in serial data transmission architectures
- Being referenced under a single-language Wikipedia entry (Finnish)

## Body
### Definition and Functionality
The Universal Synchronous/Asynchronous Receiver-Transmitter (USART) is an integrated circuit designed for serial communication. It allows bidirectional data transfer and supports two modes of operation:
- **Synchronous mode**: Uses a clock signal to synchronize data transmission.
- **Asynchronous mode**: Relies on start and stop bits without a separate clock line.

This dual functionality makes the USART adaptable to varying communication requirements.

### Integration and Role
USART chips are mounted on motherboards, which serve as the primary printed circuit board (PCB) in computing devices. The integration into the motherboard places the USART at the core of internal device communications, particularly where serial interfaces are required.

### Technical Classification
According to structured data sources:
- Instance of: Integrated circuit
- Part of: Motherboard
- Alias: USART
- Wikidata description: “Motherboard chip”
- Sitelink count: 1
- Available primarily in Finnish on Wikipedia

### Identification and References
The entity has been cataloged in knowledge bases including:
- Google Knowledge Graph ID: /g/120hhrrf
- Wikidata QID: Not explicitly listed; described via properties

These identifiers help classify and retrieve information about the component in structured databases and semantic web tools.