MAX14830ETM+T

Overview

The MAX14830ETM+T is a quad universal asynchronous receiver-transmitter (UART) featuring four independent channels, each equipped with 128-word transmit and receive FIFOs. It bridges SPI or I²C microprocessor buses to asynchronous interfaces like RS-485, RS-232, or IrDA. The device supports data rates up to 24 Mbaud in 2x/4x rate modes and includes an integrated PLL for flexible baud-rate generation. Logic-level translation down to 1.61V ensures compatibility across varying supply voltages. It operates within a -40°C to +85°C temperature range.

Feature Summary

• Integrates four UART channels with deep 128-word FIFOs to offload host processor management
• Supports high-speed SPI and I²C controller interfaces with logic-level translation
• Includes advanced half-duplex control features such as auto transceiver direction control and echo suppression
• Features programmable GPIOs and on-board timers for system synchronization

Applications

• Industrial Control Systems
• Programmable Logic Controllers (PLC)
• IO-Link Master Controllers
• Medical Systems
• Airplane Communication Buses

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm that the ordering part number matches the specific package variant required for your PCB layout. Ensure the supplier provides valid traceability documentation for Analog Devices products to guarantee authenticity and compliance with RoHS standards.

Selection Notes

Select this component when a single interface chip must provide multiple asynchronous serial ports via a digital bus. It is suitable for designs requiring reduced board space through its compact TQFN package. Consider its logic-level translation capabilities if interfacing with controllers operating at different voltage levels than the transceivers.

Part Context

This part belongs to the MAX14830 family of quad serial UARTs from Analog Devices. It is functionally register-compatible with the MAX3107, MAX3108, and MAX3109 series, facilitating upgrades or replacements in existing designs. The ETM+ designation specifies the TQFN-48 package and lead-free construction.

Replacement Considerations

The MAX3107, MAX3108, and MAX3109 are register-compatible alternatives within the same product family. Verify pinout and feature parity before substitution, particularly regarding the number of UART channels and FIFO depths.