Intersil HC-5504
the HC-5504 • Capable of 5V or 12V (VB+) Operation • Monolithic Integrated Device • DI High Voltage Process • Compatible With Worldwide PBX Performance Requirements • Controlled Supply of Battery Feed Current for Short Loops (41mA) • Internal Ring Relay Driver • Allows Interfacing With Negative Superimposed Ringing Systems • Low Power Consumption During Standby • Switch Hook Ground Key and Ring Trip Detection Functions • Selective Denial of Power to Subscriber Loops Ordering Information PART NUMBER HC1-5504B-5 HC1-5504B-9 HC3-5504B-5 HC3-5504B-9 HC4P5504B-5 HC4P5504B-9 HC9P5504B-5 HC9P5504B-9...