General Description
The MAX3170 is a three-driver/three-receiver multiprotocol transceiver that operates from a +3.3V single supply. The MAX3170, along with the MAX3171/MAX3173 and MAX3172/MAX3174, form a complete softwareselectable data terminal equipment (DTE) or data communications equipment (DCE) interface port that supports the V.28 (RS-232), V.11 (RS-449/V.36, EIA530, EIA530-A, X.21), and V.35 protocols. The MAX3170 transceiver carries the high-speed clock and data signals, while the MAX3171 or MAX3173 carries the control signals. The MAX3170 can be terminated by the MAX3172 or MAX3174 software-selectable resistor termination network or by a discrete termination network.

Features
♦ Industry’s First +3.3V Single-Supply Transceiver
♦ 3V/5V Logic-Compatible I/O
♦ Certified TBR-1 and TBR-2 Compliant (NET1 and
   NET2)—Pending Completion
♦ Supports V.28 (RS-232), V.11 (RS-449/V.36,
   EIA530, EIA530-A, X.21), and V.35 Protocols
♦ Software-Selectable DTE/DCE
♦ Complete DTE/DCE Port with MAX3171/MAX3173
   and MAX3172/MAX3174
♦ True Fail-Safe Receiver Operation
♦ Available in Small 28-Pin SSOP Package
♦ 10Mbps Operation (V.11/V.35)
♦ Requires Only Four Tiny Surface-Mount
   Capacitors
♦ All Transmitter Outputs Are Fault Protected to
   ±15V to Survive Cable Miswiring

Applications
   Data Networking
   PCI Cards
   CSU and DSU
   Telecommunications
   Data Routers