Maxim MAX14830 Quad Serial UART
Maxim Integrated MAX14830 Quad Serial UART is the industry's first quad SPI/I2C UART. Each UART of this Maxim device features 128 words of receive and transmit first-in/first-out (FIFO) and a high-speed serial peripheral interface (SPIK) 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. 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 halfduplex communication applications. Maxim MAX14830 features the ability to synchronize the start of an 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. MAX14830 is specified to operate over the extended -40ºC to +85ºC temperature range.