MAX3110EEWI

Controllers Overview

The MAX3110EEWI is a single-chip UART and RS-232 transceiver in a 28-pin Wide SOIC package. It integrates an SPI/QSPI/MICROWIRE-compatible UART with an 8-word receive FIFO, baud-rate generator, and interrupt logic. The device includes ±15kV ESD-protected RS-232 drivers and receivers with internal charge-pump capacitors. Operating on a single +4.5V to +5.5V supply, it delivers true RS-232 performance at data rates up to 250kbps while consuming only 600µA of supply current.

Controllers Feature Summary

• Integrates a full-featured UART and RS-232 transceiver into a single 28-pin package to reduce board space.
• Features an SPI/QSPI/MICROWIRE-compatible serial interface that saves microcontroller I/O pins.
• Includes internal charge-pump capacitors, eliminating the need for external components.
• Provides ±15kV ESD protection on receiver inputs and transmitter outputs.

Controllers Applications

• Point-of-Sale (POS) Devices
• Handy-Terminals
• Telecom/Networking Diagnostic Ports
• Industrial Front-Panel Interfaces
• Hand-Held/Battery-Powered Equipment

Controllers Procurement Notes

Verify the specific suffix 'EEWI' confirms the -40°C to +85°C industrial temperature range and the 28-Wide SOIC package. Confirm RoHS compliance status via the manufacturer's official documentation or certification database before finalizing procurement specifications.

Controllers Selection Notes

Select this component when a unified solution for UART-to-RS-232 conversion is required without external charge-pump capacitors. Ensure the system operates within the +4.5V to +5.5V voltage range. Verify that the host microcontroller supports the required SPI timing modes (CPOL=0, CPHA=0) or MICROWIRE protocols for proper interface compatibility.

Controllers Part Context

This part belongs to the MAX3110E/MAX3111E family, which combines UART functionality with RS-232 transceivers. It is hardware- and software-compatible with the MAX3100 and MAX3222E, allowing for potential design migration or pin-compatible upgrades in existing systems requiring similar interface capabilities.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.

Controllers FAQ

Does the MAX3110EEWI require external capacitors for the RS-232 charge pump?

No, the device features integrated charge-pump capacitors, so no external components are required for the RS-232 voltage generation.

What is the maximum data rate supported by the RS-232 transceiver?

The RS-232 transceiver is guaranteed to operate at data rates up to 250kbps while maintaining true EIA/TIA-232 output voltage levels.

How does the device handle power consumption during shutdown?

In hardware/software-invoked shutdown, the receivers remain active to allow external device monitoring while consuming only 10µA of supply current.