MAX3171CAI+T

Overview

The MAX3171CAI+T 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 protocols, including RS-449, V.36, EIA-530, EIA-530-A, X.21, and RS-423. The device integrates an internal charge pump and low-dropout transmitter output stages to generate required voltage levels without external supplies. It features software-selectable DTE/DCE configuration and includes 10µs receiver input glitch filtering. The component operates within a temperature range of 0°C to +70°C and is housed in a 28-pin SSOP package.

Feature Summary

• Supports multiple serial interface protocols including RS-232, RS-449, and X.21 via software selection
• Integrates internal charge pump for +3.3V single-supply compatibility
• Includes 10µs receiver input glitch filtering for signal integrity
• Provides ±15V fault protection on all transmitter outputs

Applications

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

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates. Ensure the supplier provides valid traceability records for the Analog Devices Inc./Maxim Integrated origin. Cross-reference the full part number against current datasheets to confirm pinout and electrical specifications match the design requirements before procurement.

Selection Notes

Select this component when a +3.3V powered solution is required for multiprotocol serial communication. Choose the MAX3171 variant specifically if 10µs receiver glitch filtering is necessary for noisy environments. Opt for this part over the MAX3173 if glitch filtering is required, or over the MAX3172/MAX3174 if only three drivers/receivers are needed rather than four. Ensure the application fits the 0°C to +70°C commercial temperature range.

Part Context

The MAX3171CAI+T belongs to the MAX317x family of multiprotocol transceivers. It works in conjunction with the MAX3170 clock/data transceiver to form complete DTE or DCE interfaces. Unlike the MAX3173, it includes specific hardware filtering for serial handshake signals. The CAI suffix denotes the industrial/commercial temperature grade and SSOP package type, while the '+' indicates lead-free/RoHS compliance.

Replacement Considerations

MAX3173CAI+T serves as a parameter-equivalent alternative but lacks the 10µs receiver glitch filtering found in the MAX3171. Designers must verify if the absence of this filtering affects signal integrity in their specific application environment before substituting.