This table highlights the differences between the LTC2870, LTC2871, and another popular multi-protocol transceiver, the LTC1387. The LTC2870 more closely resembles the LTC1387, as it provides either RS485 communication or RS232 communication, while the LTC2871 can simultaneously transmit using both the RS485 and RS232 protocols. Both the LTC2870 and LTC2871 are packed with improvements over the previous generation. The first thing to note is the wider input voltage range, which allows these devices to be used in 3V systems. Maximum data rates for both the RS485 and the RS232 have been increased by a factor of four. Integrated termination has been added to simplify network configuration and to reduce component count. Also, half- or full-duplex switching is supported. Failsafe operation has improved, such that the receiver output will guarantee a logic-high state when the inputs are shorted, left open, or terminated but not driven. The number of RS485 nodes that can be supported in the network has also increased, as well as the level of ESD protection. The LTC2870 and LTC2871 include a boost regulator to generate a 7V supply for the RS232 protocol, and therefore they require an external inductor. The LTC1387 uses a charge pump to generate the RS232 positive voltage.