The LTC®2856-1, LTC2856-2, LTC2857-1, LTC2857-2, LTC2858-1 and LTC2858-2 are low power, RS485/RS422 transceivers operating on 5V supplies at maximum data rates of 20Mbps or 250kbps for low EMI. The receiver has a one-eighth unit load, supporting up to 256 nodes per bus (C, I-Grade), and a failsafe feature that guarantees a high output state under conditions of floating or shorted inputs. The driver maintains a high output impedance over the entire common mode range when disabled or when the supply is removed. Excessive power dissipation caused by bus contention or a fault is prevented by current limiting all outputs and by thermal shutdown. Enhanced ESD protection allows these parts to withstand ±15kV (human body model) on the transceiver interface pins without latchup or damage. PART NUMBERMAX DATA RATE (Mbps)DUPLEXPACKAGE LTC2856-1 20 Half MSOP-8, DFN-8 LTC2856-2 0.25 Half MSOP-8, DFN-8 LTC2857-1 20 Full MSOP-8, DFN-8 LTC2857-2 0.25 Full MSOP-8, DFN-8 LTC2858-1 20 Full MSOP-10, DFN-10 LTC2858-2 0.25 Full MSOP-10, DFN-10
