Renesas Electronics Corporation Interface Transceiver IC HC55185CIM

The HC55185CIM is a member of the RSLIC-VoIP family of ringing subscriber line interface circuits designed for analog Plain Old Telephone Service (POTS) applications. It supports both short and medium loop lengths, making it suitable for various wireless and wireline applications, particularly in remote subscriber units. The device operates at a high ringing voltage of up to 100V, allowing for extended subscriber loop lengths of 500Oc (approximately 5,000 feet). Key features include low power consumption, the ability to generate ringing using sinusoidal or trapezoidal waveforms, and robust auto-detection mechanisms for subscriber states (on or off hook). The HC55185CIM also integrates test access features for loopback testing and line measurement, minimizing the need for external components. It is available in a 28-lead PLCC package and is compliant with RoHS standards. The device operates within a temperature range of -40 to +85¬8C, making it suitable for a variety of environmental conditions. This product is particularly applicable in Voice Over Internet Protocol (VoIP) systems, cable modems, Voice Over DSL (VoDSL), and terminal adapters, providing flexibility and high performance for telecom applications.