The Intersil HC5503T is a low cost Subscriber Line Interface Circuit (SLIC) that replaces the components of a discrete Transformer Analog circuit design. The monolithic integrated design provides improved performance and system reliability.

FEATUREs
• Monolithic Integrated Device
• Controlled Supply of Battery Feed Current for Short Loops (30mA)
• Single +5V Supply
• Allows Interfacing With All Ringing Systems
• Switch Hook Detection
• Compatible With Worldwide PBX Performance Requirements
• Low Power Consumption During Standby
• Pb-free Available

APPLICATIONs
• PBX Switches (Analog, Digital or ISDN)
• Key Telephone Systems (KTS)
• ISDN PC Plug in Modems
• ISDN Small Office/Home Office (SOHO) Terminal Adapters (TA)
• CTI (Computer Telephony Integration) Products