ST3485E Datasheet | STMicroelectronics

features s ESD protection - ±15k V human body model - ±8k V IEC 1000-4-2 contact discharge Operate from a single 3.3V supply - no charge pump required Interoperable with 5V logic 1µA low current shutdown mode max Guaranteed 12Mbps data rate -7 to 12 mon mode input voltage range Half duplex versions available Industry standard 75176 pinout Current limiting and thermal shutdown for driver overload protection Guaranteed high receiver output state for floating inputs with no signal present Allow up to 64 transceivers on the bus and one receiver in half duplex configuration. The ST3485E transmits and receives at a guaranteed data rate of at least 12Mbps. All transmitter outputs and receiver inputs are protected to ±15k V using Human Body Model. Driver is short-circuit current limited and is protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. DIP-8 SO-8 s s s s s s s s s s Description The ST3485E is ±15k V ESD protected, 3.3V low power transceiver for RS-485 and RS-422 munications. The device contains one driver Order code Part number ST3485ECN ST3485EBN ST3485ECDR ST3485EBDR April 2006 Temperature range 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C Package DIP-8 DIP-8 SO-8 (Tape & Reel) SO-8 (Tape & Reel) Rev 2 ments 50parts per tube / 40tube per box 50parts per tube / 40tube per box 2500 parts per reel 2500 parts per reel 1/22 .st. 22 Contents Contents 1 2 3 4 5 6 7 Pin configuration - - - - - - - - . . . . 3 Truth tables - - - - - - - - - . . . 4 Maximum ratings - - - - - - - - . . . . 5 Electrical characteristics - - - - - - - . . 6 Test circuits and typical characteristics - - - - . ....