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BUY ST16C454CJ68-F https://www.utsource.net/itm/p/7251713.html
UART 4-CH 3.3V/5V 68-Pin PLCC
Description: The ST16C454CJ68-F is a quad universal asynchronous receiver/transmitter (UART) with 128-byte FIFOs. It is designed to provide a simple solution for RS-232, RS-422, and RS-485 serial communications. Features: - Four independent UART channels - 128-byte FIFOs for each channel - Programmable baud rate generator - Automatic hardware and software flow control - Automatic inversion of transmit and receive data - Automatic parity, framing, and overrun error detection - 5V tolerant inputs Applications: - Industrial automation - Instrumentation - Point-of-sale terminals - Printer interfaces - Modem interfaces - Embedded systems (For reference only)