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HC-5504 - ITU Low Cost/ PABX SLIC With 40mA Loop Feed

General Description

28 PIN PLCC 2 24 PIN DIP/SOIC 1 SYMBOL TIP DESCRIPTION An analog input connected to the TIP (more positive) side of the subscriber loop through a 150Ω feed resistor and a ring relay conta

Key Features

  • Pin for Pin Replacement for 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 a.

📥 Download Datasheet

Other Datasheets by Intersil (now Renesas)

Part Number Description
HC-5504 EIA/ITU PABX SLIC with 40mA Loop Feed
HC-5504B EIA/ITU PABX SLIC with 40mA Loop Feed
HC-5504B1 ITU Low Cost/ PABX SLIC With 40mA Loop Feed
HC-5502B EIA/ITU PABX SLIC with 30mA Loop Feed
HC-5502B1 SLIC Subscriber Line Interface Circuit
HC-5509B SLIC Subscriber Line Interface Circuit
HC-5509B3999-003 SLIC Subscriber Line Interface Circuit
HC-5524 EIA/ITU 24V PABX SLIC with 25mA Loop Feed
HC-55536 Continuously Variable Slope Delta-Demodulator (CVSD)
HC-55564 Continuously Variable Slope Delta-Modulator (CVSD)

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
HC-5504B Data Sheet July 1998 File Number 2886.5 EIA/ITU PABX SLIC with 40mA Loop Feed The Intersil SLIC incorporates many of the BORSHT functions on a single IC chip. This includes DC battery feed, a ring relay driver, supervisory and hybrid functions. This device is designed to maintain transmission performance in the presence of externally induced longitudinal currents. Using the unique Intersil dielectric isolation process, the SLIC can operate directly with a wide range of station battery voltages. The SLIC also provides selective denial of power. If the PBX system becomes overloaded during an emergency, the SLIC will provide system protection by denying power to selected subscriber loops.