MAX14830
PRODUCTIONQuad Serial UART with 128-Word FIFOs
Industry's First Quad SPI/I2C UART
- Part Models
- 2
- 1ku List Price
- Starting From $14.38
Overview
- 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 Active-Low RTS_ and Active-Low 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 × 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 Controller and Transceiver Interfaces Ensures System Compatibility
- Register Compatible with MAX3107, MAX3108, MAX3109
The MAX14830 is an advanced quad universal asynchronous 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 microcontrollers, 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 × 7mm) package and is specified to operate over the extended -40°C to +85°C temperature range.
Applications
- Airplane Communication Buses
- Industrial Control Systems
- IO-Link Master Controllers
- Medical Systems
- Point-of-Sales Systems
- Programmable Logic Controllers (PLC)
Documentation
Data Sheet 1
Design Note 1
Technical Articles 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX14830ETM+ | Thin Quad Flatpack, No Leads | ||
| MAX14830ETM+T | Thin Quad Flatpack, No Leads |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jan 7, 2014 - 1363 ASSEMBLY |
||
| MAX14830ETM+ | PRODUCTION | |
| MAX14830ETM+T | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 0
Tools & Simulations
IBIS Model 1
Evaluation Kits
Evaluation Kit for the MAX14830