SP3494 Data Sheet 3.3V Low Power RS-485 / RS-422 Transceiver General Description Features The SP3494 device is a 3.3V low power half-duplex Operates from a single 3.3V supply transceiver that meets the specifications of the RS-485 Interoperable with 5.0V logic and RS-422 serial protocols. This device is pin-to-pin compatible with the MaxLinear SP481E device and other 200mV receiver input sensitivity popular industry standard devices. The SP3494 features -7V to +12V common-mode input voltage range the MaxLinear BiCMOS process, allowing low power operation without sacrificing performance. The partially Allows up to 32 transceivers on the serial bus slew-rate limited drivers minimize EMI and reduce Driver / receiver enable lines reflections caused by improperly terminated cables allowing error-free data transmission. The SP3494 is a 10A low-power shutdown mode half-duplex partially slew-rate limited transceiver that will Compatibility with the MAX3486 and 75176 industry deliver a data transmission rate up to 2.5Mbps. The SP3494 is equipped with a low-power shutdown mode standard pinout and driver / receiver high-Z enable lines. Ordering Information - page 8 Block Diagram Figure 1: SP3494 www.maxlinear.com Rev 1.0.2SP3494 3.3V Low Power RS-485 / RS-422 Transceiver Data Sheet Revision History Revision History Revision Release Date Change Description -- 10/15/02 Legacy Sipex Datasheet 1.0.0 7/10/12 Convert to Exar Format. Update ordering information and add new Figure 8 - Driver Short Circuit Current Limit Test Circuit. Remove EOL device SP3493. 1.0.1 9/7/17 Update to MaxLinear logo. Remove GND from Differential Output Voltage min (page 2), correct part number (SP3485 Receiver, page 3). Added maximum junction temperature, package power dissipation and ESD rating. Update format and ordering information table. 1.0.2 3/4/19 Update to MaxLinear format. Update pin compatibility references. 3/4/19 Rev 1.0.2 ii