MAX14830ETM+

Overview

The MAX14830ETM+ is a quad universal asynchronous receiver-transmitter (UART) featuring four independent channels, each equipped with 128-word transmit and receive FIFOs. It interfaces via SPI or I²C and supports baud rates up to 24 Mbaud using fractional generators and a PLL. The device operates on supply voltages ranging from 2.35V to 3.6V for analog sections and 1.71V to 3.6V for logic. It includes an internal oscillator, GPIOs, and auto transceiver control, housed in a 48-pin TQFN package.

Feature Summary

• Integrates four UART channels with 128-word FIFOs per channel to reduce host processor overhead.
• Supports high-speed serial communication through SPI or I²C controller interfaces.
• Includes programmable baud-rate generation utilizing a PLL and fractional dividers.
• Features automatic hardware flow control and half-duplex echo suppression.

Applications

• Industrial Control Systems
• Programmable Logic Controllers (PLC)
• IO-Link Master Controllers

Procurement Notes

Verify the component against official Analog Devices documentation to confirm pinout compatibility and electrical specifications. Ensure that the operating voltage requirements align with the system design constraints before integration.

Selection Notes

Select this component when multiple UART interfaces are required within a single footprint. The integrated FIFOs and logic-level translation simplify connections to microcontrollers and FPGAs operating at different voltage levels.

Part Context

This part belongs to the MAX14830 series of advanced quad serial UARTs. It is designed to bridge microprocessor buses to asynchronous interfaces like RS-485 or IrDA, offering register compatibility with legacy devices such as the MAX3107.

Replacement Considerations

The datasheet notes register compatibility with the MAX3107, MAX3108, and MAX3109. Verify functional equivalence if substituting these specific legacy parts.