The ST16C2552IJ is a dual universal asynchronous receiver/transmitter (UART) manufactured by Exar Corporation. It is designed to provide flexible and reliable serial communication for various applications. This UART features two independent channels, each supporting multiple data formats and baud rates. It is commonly used in embedded systems, communication devices, and industrial automation equipment.

Applications

• Embedded systems
• Communication devices
• Industrial automation equipment
• Serial data communication
• Modems
• Printers

Features

• Dual UART channels: Two independent UART channels in a single package.
• Programmable baud rate generator: Supports a wide range of baud rates.
• Multiple data formats: Supports various data formats (5, 6, 7, or 8 data bits; odd, even, or no parity; 1 or 2 stop bits).
• FIFO buffers: 16-byte transmit and receive FIFO buffers per channel.
• Modem control signals: Supports modem control functions (CTS, RTS, DSR, DTR, RI, DCD).
• Interrupt control: Flexible interrupt generation and control.
• Software compatible with industry-standard 16C450/16C550 UARTs.

Benefits

• Flexible serial communication: Supports various data formats and baud rates.
• Increased system throughput: FIFO buffers improve data transfer efficiency.
• Simplified system design: Integrated functions reduce external component count.
• Software compatibility: Easy to integrate into existing systems.
• Reliable communication: Designed for robust and reliable serial communication.

Additional Details

The ST16C2552IJ is typically interfaced with a microcontroller or microprocessor through a parallel or serial bus. The baud rate is programmed through internal registers. The FIFO buffers help to reduce CPU overhead by allowing the UART to buffer data. The modem control signals allow for connection to modems and other serial devices. The interrupt control features allow the UART to signal the CPU when data is received or when other events occur.

Refer to the datasheet for detailed specifications, application circuit examples, and programming information.