MAX14830 datasheet(1/68 Pages) MAXIM

Part #	MAX14830

Description	Quad Serial UART with 128-Word FIFOs

PDF	68 Pages

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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General Description

The MAX14830 is an advanced quad universal asynchro-

nous receiver-transmitter (UART), each UART having

128 words of receive and transmit first-in/first-out (FIFO)

and a high-speed serial peripheral interface (SPI) or I2C

controller interface. A PLL and fractional baud-rate

generators allow a high degree of flexibility in baud-rate

programming and reference clock selection.

Each of the four UARTs is selected by in-band SPI/I2C

addressing. Logic-level translation on the transceiver and

controller interfaces allows ease of interfacing to micro-

controllers, FPGAs, and transceivers that are powered by

differing supply voltages.

Extensive features simplify transceiver control in

half-duplex communication applications. The MAX14830

features the ability to synchronize the start of individual

UART’s transmission by SPI-based triggering. On-board

timers allow programming of delays between transmitters

as well as clock generation on GPIOs.

The 128-word FIFOs have advanced FIFO control

reducing host processor data flow management.

The MAX14830 is available in a 48-pin TQFN (7mm

x 7mm) package and is specified to operate. over the

extended -40°C to +85°C temperature range.

Applications

● Industrial Control Systems

● Programmable Logic Controllers (PLC)

● IO-Link Master Controllers

● Medical Systems

● Point-of-Sales Systems

● Airplane Communication Buses

Benefits and Features

● Bridges an SPI/MICROWIRE or I2C Microprocessor

Bus to an Asynchronous Interface like RS-485,

RS-232, or IrDASM

• SIR- and MIR-Compliant IrDA Encoder/Decoder

• Line Noise Indication Ensures Data Link Integrity

● Deep, 128-Word Buffer and Automated Control

Features Help Offload Activity on the Microcontroller

• 128-Word Transmit and Receive FIFOs per UART

• Transmitter Synchronization Through SPI Commands

• Automatic Hardware Flow Control Using RTS_ and

CTS_ Outputs and Inputs

• Automatic Software Flow Control (XON/XOFF)

• Auto Transceiver Direction Control

• Programmable Setup and Hold Times for Transceiver

Control

• Auto Transmitter Disable

• Half-Duplex Echo Suppression

• 9-Bit Multidrop-Mode Data Filtering

Special Character Detection

GPIO-Based Character Detection

Four Timers Routed to GPIOs

16 Flexible GPIOs with 20mA Drive Capability

● Saves Board Space

• TQFN (7mm x 7mm) Package

● Fast Data Rates Allow Maximum System Flexibility

Across Interface Standards

• 6Mbaud (max) Data Rate in 16x Sampling Mode

• 12/24Mbaud (max) Data Rate in 2x/4x Rate Modes

• High-Resolution Programmable Baud-Rate

• SPI Up to 26MHz Clock Rate

• Fast Mode Plus (Pm+) I2C Up to 1MHz

● Integrated Internal Oscillator Eliminates the Need for

an External Oscillator and Reduces the BOM Cost

• Fractional Baud-Rate Generators, Predivider, and

Phase-Locked Loop (PLL)

• Logic-Level Translation Down to 1.61V on the Con-

troller and Transceiver Interfaces Ensures System

Compatibility

• Register Compatible with MAX3107, MAX3108,

MAX3109

Typical Operating Circuit and Ordering Information appear

at end of data sheet.

19-5547; Rev 7; 2/16

IrDA is a registered service mark of Infrared Data Association

Corporation.

MAX14830

Quad Serial UART with 128-Word FIFOs

EVALUATION KIT AVAILABLE

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Similar Description - MAX14830

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	MAX3108	2Mb / 56P	SPI/I2C UART with 128-Word FIFOs in WLP Rev 1; 2/11
	MAX3109	3Mb / 66P	Dual Serial UART with 128-Word FIFOs Integrated PLL and Divider Rev 0; 3/11
	MAX3107	2Mb / 52P	SPI/I2C UART with 128-Word FIFOs Rev 3; 8/11
	MAX3109	2Mb / 66P	Dual Serial UART with 128-Word FIFOs Rev 1; 5/12
	MAX14830	3Mb / 68P	Quad Serial UART with 128-Word FIFOs Rev 3; 1/13
	MAX3107	1Mb / 52P	SPI/I2C UART with 128-Word FIFOs Rev 7; 5/15
	MAX3109	1Mb / 66P	Dual Serial UART with 128-Word FIFOs Rev 3; 2/15
	MAX14830	2Mb / 68P	Quad Serial UART with 128-Word FIFOs Rev 5; 2/15
	MAX3109	2Mb / 66P	Dual Serial UART with 128-Word FIFOs 19-5806; Rev 6; 8/20
	MAX3108A	1Mb / 56P	SPI/I2C UART with 128-Word FIFOs in WLP 19-6449; Rev 1; 2/15

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