The MAX13170E is a three-driver/three-receiver multiprotocol transceiver that operates from a +5V single supply. The MAX13170E, along with the MAX13172E and the MAX13174E, form a complete software-selectable data terminal equipment (DTE) or data communication equipment (DCE) interface port that supports the V.28 (RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA-530A, X.21), and V.35 protocols. The MAX13170E transceivers carry the high-speed clock and data signals, while the MAX13172E carry the control signals. The MAX13170E can be terminated by the MAX13174E software-selectable resistor termination network or by discrete termination networks. The MAX13170E has an internal charge pump and a proprietary low-dropout transmitter output stage that allows V.11-, V.28-, and V.35-compliant operation from a +5V single supply. The MAX13170E features a nocable mode that reduces supply current to 0.5μA, and disables all (high-impedance) transmitter and receiver outputs. Short-circuit current limiting and thermal shutdown circuitry protect the receiver and transmitter outputs against excessive power dissipation. The MAX13170E has extended ESD protection for all the transmitter outputs and receivers inputs. The MAX13170E is available in a 5.3mm x 10.2mm, 28-pin SSOP package and operates over the 0°C to +70°C commercial temperature range.