Description
ST16C554 / ST16C554D / ST68C554 Data Sheet 2.97V to 5.5V Quad UARTs with 16-Byte FIFO General .
The ST16C554, ST16C554D and ST68C554 are each quad Universal Asynchronous Receivers and Transmitters (UARTs) with 16 bytes of transmit and receive FIF.
Features
* Pin-to-pin compatible with the industry standard
ST16C454, ST68C454, ST68C554, TI’s TL16C554A and Philips’ SC16C554B
* Intel or Motorola data bus interface select
* Four independent UART channels
Register set compatible to 16C550 Data rates of up to 1.5Mbps at 5V Data rates of
Applications
* Portable appliances
* Telecommunication network routers
* Ethernet network routers
* Cellular data devices
* Factory automation and process controls
Block Diagram
A2:A0 D7:D0
IOR# IOW# CSA# CSB# CSC# CSD# INTA INTB INTC INTD TXRDY# A-D RXRDY# A-D Reset 16/68# INTSEL
Data Bus
