Description
The CPC7581 is a monolithic solid-state four-pole switch in a 16-pin package. It provides the necessary functions to replace a 2-Form-C electromechanical relay on traditional analog and integrated voice and data (IVD) line cards found in central office, access, and PBX equipment.

Features
• Low, Matched RON
• Eliminates the Need for Zero-Cross Switching
• 5V Operation With Power Consumption < 10 mW
• Flexible Switch Timing for Transition from Ringing Mode to Idle/Talk Mode
• Clean, Bounce-Free Switching
• Tertiary Protection Consisting of Integrated Current Limiting, Thermal Shutdown for SLIC Protection
• Intelligent Battery Monitor
• Latched Logic-Level Inputs, No External Drive Circuitry Required
• SOIC Package Pin-Compatible With Legerity Product
• Small 16-pin SOIC Package
• Monolithic IC reliability

Applications
• Central Office (CO)
• Digital Loop Carrier (DLC)
• PBX Systems
• Digitally Added Main Line (DAML)
• Hybrid Fiber Coax (HFC)
• Fiber in the Loop (FITL)
• Pair Gain System
• Channel Banks