MAX3162EAI+

Overview

The MAX3162EAI+ is a multiprotocol transceiver from Analog Devices/Maxim Integrated, housed in a 28-pin SSOP package. It operates on a single +3V to +5.5V supply and integrates dual charge pumps for RS-232 compliance without requiring bipolar supplies. The device simultaneously provides a 2TX/2RX RS-232 interface and a half-duplex RS-485/422 transceiver. 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, integrated protection against wiring faults, and a shutdown mode with 1µA supply current.

Feature Summary

• Simultaneous operation of a 2TX/2RX RS-232 interface and a half-duplex RS-485/422 transceiver within a single package
• Integrated dual charge pump circuitry enabling compliant performance from a single +3V to +5.5V supply
• Pin-selectable transmitter slew rates to minimize EMI or enable high-speed transmission up to 10Mbps
• True fail-safe receiver design that prevents false transitions during input shorting or open-circuit conditions

Applications

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

Procurement Notes

Verify the specific ordering suffix 'EAI+' to confirm the -40°C to +85°C extended temperature range and lead-free/RoHS-compliant packaging status. Cross-reference the manufacturer's part number with distributor listings to ensure compatibility with the required 28-pin SSOP form factor and functional specifications.

Selection Notes

Select this component when simultaneous RS-232 and RS-485/422 communication channels are required on a single board. It is suitable for designs needing flow-through pinouts to simplify layout. Ensure the application benefits from the 1µA shutdown current for power-sensitive environments and requires the specific 28-pin footprint.

Part Context

This device belongs to the MAX3160/MAX3161/MAX3162 family of programmable multiprotocol transceivers. While the MAX3160 and MAX3161 offer pin-programmable configurations for either RS-232 or RS-485 modes, the MAX3162 is uniquely configured to operate both protocols simultaneously. It shares the same low-power architecture and charge-pump technology as its siblings but utilizes a 28-pin SSOP package to accommodate separate I/O pins for each protocol.

Replacement Considerations

MAX3162CAI+