MAX3162ECAI+T

Overview

The MAX3162ECAI+T is a multiprotocol transceiver supporting RS-232, RS-485, and RS-422 standards. It integrates a dual charge pump for single-supply operation from +3.0V to +5.5V. The device simultaneously provides a 2Tx/2Rx RS-232 interface and a half-duplex RS-485 transceiver. It features ±15kV ESD protection on all I/O pins. Data rates reach up to 1Mbps in RS-232 mode and 10Mbps in RS-485/RS-422 mode when slew-rate limiting is disabled. The shutdown supply current is 1µA. It operates within an extended temperature range of -40°C to +85°C.

Feature Summary

• Simultaneous 2Tx/2Rx RS-232 and half-duplex RS-485 transceiver operation
• Integrated dual charge pump eliminates need for bipolar supplies
• Pin-selectable transmitter slew rates minimize EMI and cable reflections
• High robustness with ±15kV ESD protection and true fail-safe receivers

Applications

• Point-of-Sales Equipment
• Industrial Controls
• Networking
• Security Systems
• Interface Converters

Procurement Notes

Verify the ordering suffix 'CAI' corresponds to the commercial temperature range (0°C to +70°C) rather than the extended range (-40°C to +85°C) indicated by the 'E' prefix in the base model number. Confirm the '+T' suffix indicates tape-and-reel packaging. Ensure the component is lead-free and RoHS compliant as per standard Maxim Integrated specifications.

Selection Notes

Select this part when simultaneous independent RS-232 and RS-485 interfaces are required on a single chip. The MAX3162E differs from the MAX3160E/MAX3161E by providing separate digital I/O ports for both protocols, optimizing it for protocol translation between two distinct buses. Verify that the 28-pin SSOP package fits the board layout constraints.

Part Context

This component belongs to the MAX3160E/MAX3161E/MAX3162E family of multiprotocol transceivers. While the MAX3160E shares I/O ports for multiprotocol bus operation and the MAX3161E separates outputs but shares logic inputs, the MAX3162E provides fully separate drivers, receivers, and logic ports for both RS-232 and RS-485/RS-422 modes.

Replacement Considerations

Public confirmed substitutes include MAX3162EEAI+T for extended temperature variants.