MAX3109 uart equivalent, dual serial uart.
*
* Bridges an SPI/MICROWIRE or I2C Microprocessor Bus to an Asynchronous Interface Such as RS-485, RS-232, or IrDASM
* SIR- and MIR-Compliant IrDA Encoder/De.
such as PROFIBUSDP. The 128-word FIFOs have advanced FIFO control, reducing host processor data flow management.
The MAX.
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