The IA8251 provides an interface between a microprocessor and a serial communications channel. The IA8251 receives and transmits data in a variety of configurations including 7- or 8-bit data words, with odd, even , or no parity, and 1 or 2 stop bits. The transmitter and receiver can be designed for synchronous or asynchronous operation.

FEATURES

• Form, Fit, and Function Compatible with the Intelâ 8251A

• Packaging options available: 28 Pin Plastic Dip or 28 Pin Plastic Leaded Chip Carrier

• Synchronous and Asynchronous Operation

• Full Duplex, Double-Buffered Transmitter and Receiver

• Programmable Word Length, Stop Bits, and Parity

• Offers Divide-by-1, -16, or –64 Mode

• Includes:

- Error Detection

- False Start Detection

- Automatic Break Detection and Handling

- Internal and External Sync Character Detection