MAX3162CAI+T

Overview

The MAX3162CAI+T is a multiprotocol transceiver supporting RS-232 and RS-485/RS-422 interfaces. It operates on a single +3V to +5.5V supply, utilizing an internal dual charge pump to generate the required ±5.5V levels without external bipolar supplies. The device integrates two RS-232 transmitters/receivers and one RS-485/422 transceiver simultaneously. It supports data rates up to 1Mbps for RS-232 and 10Mbps for RS-485/422 when slew-rate limiting is disabled. The component features pin-selectable slew rates, fail-safe receivers, and thermal protection. It is housed in a 28-pin SSOP package and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Simultaneous operation of a 2TX/2RX RS-232 interface and a half-duplex RS-485/422 transceiver
• Integrated dual charge pump eliminates the need for external bipolar power supplies
• Pin-selectable transmitter slew rates minimize electromagnetic interference and cable reflections
• True fail-safe receiver prevents false transitions during input short or open circuit conditions

Applications

• Point-of-Sales Equipment
• Industrial Controls
• Networking
• RS-232 to RS-485 Interface Converters

Procurement Notes

Verify that the ordering suffix 'CAI+' corresponds to the commercial temperature range (0°C to +70°C) and lead-free/RoHS compliance as specified in the manufacturer's documentation. Confirm the package type is 28-pin SSOP. Ensure the specific tape-and-reel quantity matches the '+T' designation requirements for your assembly process.

Selection Notes

Select the MAX3162 over the MAX3160 or MAX3161 when simultaneous independent RS-232 and RS-485/422 communication channels are required. This model provides separate digital I/O pins for both protocols, facilitating protocol translation between two distinct interface buses. It is suitable for applications needing dedicated hardware paths for both standards concurrently.

Part Context

The MAX3162 belongs to the MAX3160/MAX3161/MAX3162 family of programmable multiprotocol transceivers manufactured by Analog Devices Inc./Maxim Integrated. While the MAX3160 and MAX3161 share logic lines between protocols, the MAX3162 offers fully separate transmitter outputs, receiver inputs, and digital I/O pins for its RS-232 and RS-485/422 sections.

Replacement Considerations

Public confirmed substitutes include MAX3162EAI+ (Extended Temperature Range). Other family members like MAX3160 and MAX3161 offer different pin configurations but do not support simultaneous independent operation.