The ST16C552CJ-F is a dual-channel UART (Universal Asynchronous Receiver/Transmitter) manufactured by Exar Corporation. The 'CJ' likely designates the package type, and the '-F' indicates that it is a lead-free device. A dual UART provides two independent serial communication channels within a single chip, making it suitable for applications requiring multiple serial interfaces.

Applications

• Multi-port serial cards
• Embedded systems with multiple serial devices
• Industrial control systems
• Point-of-Sale (POS) terminals
• Networking equipment
• Data acquisition systems

Features

• Dual UART channels
• Data rates up to 5 Mbps per channel
• Programmable baud rate generator
• 16-byte FIFO (First-In, First-Out) transmitter and receiver buffers for each channel
• Automatic hardware/software flow control for each channel
• Modem control signals (CTS, RTS, DSR, DTR, RI, DCD) for each channel
• Interrupt generation
• Loopback mode for diagnostics
• Lead-free package

Benefits

• Dual-channel capability: Supports two independent serial communication channels, reducing component count and board space.
• High-speed data transmission: Supports data rates up to 5 Mbps per channel, enabling fast and efficient serial communication.
• Reduced CPU overhead: The 16-byte FIFOs significantly reduce CPU intervention, improving system performance.
• Flexible baud rate generation: Programmable baud rate generator allows for a wide range of baud rates to be selected, accommodating various communication standards.
• Reliable data transfer: Automatic flow control ensures reliable data transfer by preventing buffer overflow.
• Easy integration: The standard UART interface simplifies integration into existing systems.
• Diagnostic capabilities: Loopback mode enables easy testing and troubleshooting.
• Environmental Compliance: Lead-free design meets RoHS standards.

Additional Details

The ST16C552CJ-F operates from a single 5V power supply. It supports 5, 6, 7, or 8 data bits, with even, odd, or no parity. It also supports 1 or 2 stop bits for each channel. The 'CJ' package style will define the physical dimensions and pin arrangement, typically a surface-mount package. Being lead-free, it complies with environmental requirements like RoHS.

Its compliance with industry-standard UART protocols ensures wide compatibility. The internal FIFO buffers and flow control features contribute to robust and efficient data handling, which is crucial for reliable system operation in multi-channel serial communication applications. The dual channels allow for simultaneous communication with two different serial devices without interference.