General Description
The  MAX3107  is  an  advanced  universal  asynchronous receiver-transmitter  (UART)  with  128 words  each  of receive  and  transmit  first-in/first-out  (FIFO)  that  can  be controlled through I2C or high-speed SPI™. The 2x and 4x rate modes allow a maximum of 24Mbps data rates. A  phase-locked  loop  (PLL),  prescaler,  and  fractional baud-rate generator allow for high-resolution baud-rate programming  and  minimize  the  dependency  of  baud rate on reference clock frequency.

FEATUREs
24-Pin, Lead-Free TQFN (3.5mm x 3.5mm) and 24-Pin, Lead-Free SSOP Packages
24Mbps (max) Data Rate
Integrated PLL and Divider
Fractional Baud-Rate Generator
SPI Up to 26MHz Clock Rate
Auto Transceiver Direction Control
Half-Duplex Echo Suppression
Auto RTS/CTS and XON/XOFF Flow Control
Special Character Detection
GPIO-Based Character Detection
9-Bit Multidrop-Mode Data Filtering
SIR- and MIR-Compliant IrDA Encoder/Decoder
+2.35V to +3.6V Supply Range
Logic-Level Translation on the Controller and Transceiver Interfaces (Down to 1.7V)
Four Flexible GPIOs
Line Noise Indication
Shutdown and Autosleep Modes
Low 640µA (typ) Supply Current at 1Mbaud and 20MHz Clock
Low 20µA (typ) Shutdown Power