The Texas Instruments TMS9902ANL is a sophisticated, high-performance Asynchronous Communications Controller designed to fulfill the demanding requirements of communication systems. This integrated circuit is part of the renowned TMS9900 family, which is well-known for its reliable performance in a variety of computing and communication applications.

Key Features:

• Asynchronous Communication: The TMS9902ANL provides full-duplex or half-duplex asynchronous serial communication capabilities, allowing for versatile connectivity with peripherals and other systems.
• Baud Rate Generator: With an onboard programmable baud rate generator, the device can support a wide range of data transfer speeds, making it suitable for various communication protocols.
• Flexible Data Format: It supports multiple data formats, including 5, 6, 7, or 8-bit characters with even, odd, or no parity bit for enhanced data integrity.
• Buffered Operation: Equipped with both transmit and receive FIFO buffers, the TMS9902ANL ensures smooth data flow, reducing the risk of data loss during high-speed transfers.
• Interrupt Capability: The device offers an interrupt-driven operation, which allows efficient CPU utilization by alerting the system only when attention is needed.
• Status Reporting: Comprehensive status reporting features enable the monitoring of system conditions such as buffer status and error conditions.

Applications:

The TMS9902ANL is ideal for use in a variety of applications that require reliable serial communication. These include:

• Telecommunication systems
• Networking equipment
• Industrial control systems
• Data acquisition systems
• Point of sale terminals

Technical Specifications:

Operating within a voltage range of 4.5V to 5.5V, the TMS9902ANL is designed to be compatible with a broad spectrum of microprocessors and is housed in a standard 18-pin DIP (Dual In-line Package), ensuring ease of integration into existing and new designs.

As a product of Texas Instruments, a leader in semiconductor solutions, the TMS9902ANL stands as a testament to the company's commitment to providing high-quality, reliable components for the electronics industry.