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.
|Part Number||µP I/F||Channels||ICC|
|MAX14830||SPI and I2C Compatible||4||0.5||2.35 to 3.6|
|-40 to +85||$9.54 @1k|
|See All SPI/Microwire-Compatible UARTs (6)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|App Note||5304||Interfacing to the MAX3108 UART|
|App Note||4938||Differences Between Maxim's Advanced UART Devices|
|Tutorial||4701||Introduction to Programmable Logic Controllers (PLCs) and the Operational Function of Main System Modules|
|Tutorial||2141||Determining Clock Accuracy Requirements for UART Communications|