programmable multifunction universal asynchronous receiver transmitter

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• 16550 UART — Photo of a 16550 The 16550 UART (universal asynchronous receiver/transmitter) is an integrated circuit designed for implementing the interface for serial communications. It is frequently used to implement the serial port for IBM PC compatible… …   Wikipedia

• List of 7400 series integrated circuits — The following is a list of 7400 series digital logic integrated circuits. The 7400 series originated with TTL integrated circuits made by Texas Instruments. Because of the popularity of these parts, they were second sourced by other manufacturers …   Wikipedia