ST68C554 uart equivalent, 2.97v to 5.5v quad uart.
* Pin-to-pin compatible with the industry standard
ST16C454, ST68C454, ST68C554, TI’s TL16C554A and Philips’ SC16C554B
* Intel or Motorola data bus interface sele.
* Portable appliances
* Telecommunication network routers
* Ethernet network routers
* Cellular data dev.
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