ST4485EBDR STMicroelectronics

ST4485EB 3.3 V powered, 15 kV ESD protected, up to 20 Mbps RS-485/ RS-422 transceiver Datasheet - production data Guaranteed high receiver output state for floating inputs with no signal present Allow up to 64 transceivers on the bus Wide operating temperature range: -40 to +105 C Applications SO-8 Industrial systems control Telecommunications Description Features The ST4485EB device is a 15 kV ESD ESD protection protected, 3.3 V low power transceiver for RS-485 15 kV human body model and RS-422 communications. The device 8 kV IEC 1000-4-2 contact discharge contains one driver and one receiver in half Operate from a single 3.3 V supply - no charge duplex configuration. pump required The ST4485EB transmits and receives at Interoperable with 5 V logic a guaranteed data rate of at least 20 Mbps. 1 A low current shutdown mode max. All transmitter outputs and receiver inputs are Guaranteed 20 Mbps data rate protected to 15 kV using Human Body Model. -7 to 12 V common mode input voltage range The driver is short-circuit current limited and is Half duplex versions available protected against excessive power dissipation by thermal shutdown circuitry that places the driver Industry standard 75176 pinout outputs into a high-impedance state. Current limiting and thermal shutdown for driver overload protection Table 1. Device summary Order code Temperature range Package Packaging ST4485EBDR -40 to 105 C SO-8 (tape and reel) 2500 parts per reel June 2017 DocID025158 Rev 3 1/18 This is information on a product in full production. www.st.comContents ST4485EB Contents 1 Pin configuration 3 2 Truth tables 4 3 Maximum ratings 5 4 Electrical characteristics . 6 5 Test circuits and typical characteristics . 9 6 Package mechanical data 14 7 Revision history . 17 2/18 DocID025158 Rev 3