Lot of 3 16550AF (Fast) UART I.C.’s

Lot of 3 16550AF (Fast) UART I.C.’s. Classic UART (Universal Asynchronous Receiver/Transmitter) Integrated Circuit. New old stock. Chips in anti-static foam and metalized poly bag. No manual or other accessories. As shown. Perfect for legacy equipment replacement, academic/instructional use or experimentation. These are getting scarce.

Product Description:

The 16550AF Fast UART (Universal Asynchronous Receiver/Transmitter) Integrated Circuit is a high-speed serial communication controller designed to provide reliable, buffered asynchronous data transmission. An enhanced version of the classic 8250 and 16450 UARTs, the 16550AF includes a 16-byte FIFO buffer, allowing for faster data transfer rates and improved CPU efficiency in serial communications.

Engineered for use in embedded systems, modems, industrial automation, and legacy computer interfaces, the 16550AF UART I.C. supports a wide range of baud rates and ensures low-latency communication with high throughput performance. This makes it ideal for systems where real-time data transmission and minimal processor intervention are critical.

Key Features:

• ✅ Enhanced FIFO (first in – first out) Buffers: 16-byte transmit and receive buffers
• ✅ High-Speed Performance: Improved throughput for fast serial communication
• ✅ Backward Compatibility: Compatible with 8250, 16450, and 16550 UARTs
• ✅ Programmable Baud Rate Generator
• ✅ Modem Control Signals Supported (CTS, RTS, DSR, DTR, etc.)
• ✅ Interrupt-Driven Operation for Efficient CPU Handling

Applications:

• Serial Port Communication in Embedded Systems
• PC and Legacy Systems
• Modems and Data Interfaces
• Industrial Automation and Control
• Communication Equipment
• Point-of-Sale Terminals
• Microcontroller UART Expansion
• Straight forward, intuitive, proven architecture is great for academic, instructional and experimental use

Specifications:

• Model: 16550AF
• Interface Type: Serial UART
• FIFO Size: 16-byte Transmit/Receive Buffers
• Baud Rate Support: Up to 1.5 Mbps (typical max depending on implementation)
• Supply Voltage: 5V DC (TTL Compatible)
• Package Type: DIP 40 pin (classic)
• Operating Temperature Range: 0°C to +70°C (commercial grade)
• Compatibility: IBM PC/AT UART-compatible architecture