RS485 interface has a wealth of products, suitable for a variety of communications needs. Bus ports have enhanced ESD performance and inrush current sink capability. The UNUN RS485 interface chip UN3485 has an operating voltage range of 3.0 to 3.6 V and features fail-safe, over-temperature protection, current limit protection, and over-voltage protection. It is a 3.3V powered, half-duplex, low power, fully functional RS-485 transceiver that meets the TIA/EIA-485 standard. The UN3485 includes a driver and a receiver, both of which can be independently enabled and disabled. When both are disabled, both the driver and receiver output a high-impedance state. The UN3485 has a 1/8 load and allows 256 UN3485 transceivers to be connected on the same communication bus. Can achieve up to 12Mbps error-free data transmission. RS485 communication interface chip UN3485 features: 1, 3.3V power supply, half-duplex; 2,1/8 unit load, allowing up to 256 devices connected to the bus; 3, the driver short-circuit output protection; 4, over-temperature protection function; 5, low power shutdown function 6, receiver open circuit failure protection; 7, has a strong anti-noise ability; 8, integrated transient voltage resistance function; 9, in the electrical noise environment, the data transmission rate can reach 12Mbps; RS485 chip has been widely used in industrial control, security systems, intelligent instrumentation, multimedia networks, mechatronic products and a variety of areas. There are more and more types of chips that can be used for RS485 interfaces. How to find the most suitable chip in a wide variety of interface chips is a problem for every user. RS485 interface in different use occasions, the requirements and use of the chip are also different. What factors should the user consider in the selection of the chip and the design of the circuit? 1, the supply voltage range, whether the need for 3V low voltage devices? 2. How much communication speed do you need to choose high-rate devices? 3. Do you need a polarity self-rate device? 4. Do you need a half-duplex device? 5. What is the number of networking, terminal capacitive loads, and resistive loads? 6. Is there a strong interference problem in the networking? 7. Is there a logic level compatibility issue? 8. Are you experiencing ESD and surge test problems? Through the above introduction, if all of you have clarified these issues, then we should have no problem with how to properly select the RS485 chip. Butt Connector,Lugs Insulated Female Connectors,Insulated Female Connectors,Non-Insulated Spade Terminals Wire Connector Taixing Longyi Terminals Co.,Ltd. , https://www.txlyterminals.com