The ST16C550CJ44 is a high-performance universal asynchronous receiver/transmitter (UART) with a parallel interface. Manufactured by Exar Corporation, it is designed to provide flexible and reliable serial communication capabilities in a variety of applications.

Applications

• Serial communication ports in embedded systems.
• Industrial control systems.
• Data acquisition systems.
• Modems.
• Printers.
• Point-of-sale (POS) systems.

Features

• Single-channel UART with a parallel interface.
• Data rates up to 1.5 Mbps.
• 16-byte transmit and receive FIFOs.
• Programmable baud rate generator.
• Automatic hardware/software flow control.
• Modem control signals.
• Interrupt generation.

Benefits

• Provides reliable serial communication with high data rates.
• Reduces CPU overhead with 16-byte FIFOs.
• Flexible baud rate selection for compatibility with different devices.
• Automatic flow control prevents data loss.
• Modem control signals simplify modem interface.
• Interrupt generation allows for efficient event handling.

Additional Details

The ST16C550CJ44 supports 5, 6, 7, or 8 data bits and 1, 1.5, or 2 stop bits. It also supports parity generation and checking (even, odd, none). The device is typically packaged in a 44-pin PLCC or similar package. The parallel interface allows for easy connection to a microprocessor or microcontroller. The ST16C550CJ44 is compatible with the industry-standard 16C450 UART. Consult the Exar Corporation datasheet for detailed electrical characteristics, timing diagrams, and application examples. Proper decoupling capacitors should be used near the power supply pins to ensure stable operation. The ST16C550CJ44 is a versatile UART that can be used in a wide range of serial communication applications.