The 74VHC943N is a full duplex low speed modem. It provides a 300 baud bidirectional serial interface for data communication over telephone lines and other narrow bandwidth channels. It is Bell 103 compatible. The 74VHC943N utilizes advanced silicon-gate CMOS technology. Switched capacitor techniques are used to perform analog signal processing.
Drives 600X at b9 dBm
All filters on chip
Transmit level adjustment compatible with universal service order code
TTL and CMOS compatible logic
All inputs protected against static damage
Low power consumption
Full duplex answer or originate operation
Analog loopback for self test
Power down mode
Direct Pin and function replacement for the 74HC943
Built-in low speed modems
Remote data collection
Tone signaling systems
Remote process control
16 pin DIP. Manufactured by National.