The MAX14830ETM+ is a quad serial UART with 128 word FIFOs in 48 pin TQFN package. This advanced UART has 128 words of receive and transmit 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. Logic level translation on transceiver & 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. IC features ability to synchronize start of individual UART's transmission by SPI based triggering. On-board timers allow programming of delays between transmitters and clock generation on GPIOs. The 128 word FIFOs have advanced FIFO control reducing host processor data flow management. It is used in PLC, IO-link master controllers & point of sales systems.
Supply voltage range is 1.71V to 3.6V
Operating temperature range from -40°C to 85°C, SPI up to 26MHz clock rate
Bridges an SPI/MICROWIRE or I2C microprocessor bus to an interface like RS485, RS232 or IrDAS
SIR- and MIR-compliant IrDA encoder/decoder, line noise indication ensures data link integrity
Transmitter synchronization through SPI commands, automatic software flow control (XON/XOFF)
Automatic hardware flow control using RTS (complementary)_ & CTS (complementary)_ outputs and inputs
Auto transceiver direction control, auto transmitter disable & half-duplex echo suppression
9bit multidrop mode data filtering, special character detection, GPIO based character detection
4 timers routed to GPIOs, 16 flexible GPIOs with 20mA drive capability
6Mbaud (max) data rate in 16x sampling mode, fast mode plus (Pm+) I2C up to 1MHz
(EN)
