MAX3171CAI

Overview

The MAX3171CAI is a triple driver/triple receiver multiprotocol transceiver designed for +3.3V single-supply operation. It supports V.28 (RS-232) and V.10/V.11 (RS-449, V.36, EIA-530, X.21, RS-423) protocols. The device features software-selectable DTE/DCE polarity inversion and includes internal charge pumps to generate required voltage levels without external inductors. It incorporates 10µs receiver input glitch filtering and ±15V fault protection on all transmitter outputs. The component is housed in a compact 28-pin SSOP package.

Feature Summary

• Software-selectable protocol support for V.28 and V.10/V.11 standards
• Integrated charge pump eliminates need for external inductors
• Receiver input glitch filtering for signal integrity
• Transmitter output fault protection against cable wiring errors

Applications

• CSU/DSU interfaces
• Data network equipment
• Data routers
• PCI cards requiring serial control signals
• Telecommunications systems

Procurement Notes

Verify the specific suffix of the ordered part number against the datasheet. Suffixes such as 'T' or '+' indicate variations in packaging or RoHS compliance status. Confirm that the selected variant matches the required environmental specifications and pinout configuration before integration into the design.

Selection Notes

Select this component when a system requires three independent transceivers for control signals within a multiprotocol interface. Ensure the application operates within the specified +3.3V supply range. Consider the MAX3173 if receiver glitch filtering is not required, or the MAX3170/MAX3172 if clock/data handling differs from the control signal requirements defined in the datasheet.

Part Context

This device belongs to the MAX317x family of multiprotocol transceivers. It functions alongside the MAX3170 and MAX3172/MAX3174 to form complete Data Terminal Equipment (DTE) or Data Communication Equipment (DCE) interface ports. While the MAX3170 handles clock and data lines, the MAX3171 specifically manages the associated serial control signals.

Replacement Considerations

The MAX3173CAI+ is a parameter-equivalent alternative suitable for applications where receiver input glitch filtering is unnecessary. Verify pin compatibility and functional differences regarding the glitch filter before substitution.