XR16M564 uart equivalent, 1.62v to 3.63v quad uart.
* Pin-to-pin compatible with ST16C454, ST16C554,
TI’s TL16C754B and NXP’s SC16C754B
* Intel or Motorola Data Bus Interface select
* Four independent UART ch.
* Portable Appliances
* Telecommunication Network Routers
* Ethernet Network Routers
* Cellular Data De.
The XR16M5641 (M564) is an enhanced quad Universal Asynchronous Receiver and Transmitter (UART) with 32 bytes of transmit and receive FIFOs, programmable transmit and receive FIFO trigger levels, automatic hardware and software flow control, and data.
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