MAX3109 Series 3.6V 500 uA 2.76 W Dual Serial UART with 128-Word FIFOs -TQFN-32
Tape & Reel (TR) EAR99 3MBps I2C; USB interface UART 500muA 85C 0.5mm 35MHz
UART 2-CH 128Byte FIFO 1.8V/2.5V/3.3V 32-Pin TQFN EP T/R
Industry's Most Advanced Dual SPI/I²C UART Increases System Flexibility