ST485CN

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Interface - Drivers, Receivers, Transceivers technology is wide-ranging and supports many applications. The ST485CN is a transceiver that meets the requirement of low speed data transmission in applications that use robust two-way communication protocols. This article will provide an overview of the application field and working principle of the ST485CN.

The ST485CN series is an interface type that combines a driver and receiver into a single integrated circuit (IC). A major feature of the ST485CN is its low voltage needs: the devices are capable of operating with a +2.5V to +5.5V power supply. This low voltage capability makes the transceiver suitable for low power and low speed applications.

The ST485CN devices are suitable for a wide range of applications such as devices used for interconnecting computers, remote control systems, factory automation and medical instrumentation. These devices have been designed to provide robust two-way communication protocols including RS-485, CAN and CAN FD. In addition, they are also compatible with several communication protocols used in the automotive industry such as I2C, LIN and FlexRay.

The ST485CN has the driver and the receiver integrated on the same IC, making it suitable for applications in which robust two‐way communication protocols are needed. It comes in a low-cost SOIC-8 package and offers enhanced solutions for other transceiver packages such as SOIC-16, TSSOP-14, DIP-14 and LGA-14. The ST485CN transceiver includes an enable pin allowing the user to control the enable/disable functionality of the transceiver.

In addition to the general features of the ST485CN, it offers several other features, such as an integrated slew rate limit, active current limit and a wakeup feature. The integrated slew rate limiting helps to improve Electro Magnetic Compatibility (EMC) performance, while the active current limit helps protect the device from high current conditions. The wakeup feature can be used to wake up the node in event of a deep sleep.

The working principle of the ST485CN is based on its driver and receiver function. The transceiver acts as a switching device to connect the transmit and receive communication lines to the local device or node. When the local device needs to transmit data, it sends a signal to the transceiver, which switches the connection from the receive line to the transmit line. Similarly, when the remote module needs to transmit data, the transceiver receives the signal and switches the connection from the transmit line to the receive line.

The ST485CN also works in the following way: it converts the asynchronous serial data from the local device into NRZ format, which can be more easily communicated across the communication bus. The ST485CN also provides a receive input filter, which filters out unwanted noise from the received signal. Finally, the NRZ formatted data is converted back into asynchronous serial format and transmitted to the local device.

The ST485CN is an inexpensive and robust transceiver which is capable of providing reliable two-way communication protocols. Its features such as slew rate limiting and active current limit protect the integrated circuit from high current conditions. Its low power consumption and low-cost package make it suitable for a wide range of applications.

The specific data is subject to PDF, and the above content is for reference