EIA/ITU PABX SLIC With 40mA Loop Feed

The Intersil HC5504B 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.
The Intersil SLIC is ideally suited for the design of new digital PBX systems by eliminating bulky hybrid transformers.
By Intersil Corporation
HC5504B 's PackagesHC5504B 's pdf datasheet
HC9P5504B-5 SOIC
HC9P5504B-5X96 SOIC
HC9P5504B-5ZX96 SOIC
HC3-5504B-5 PDIP
HC4P5504B-5 PLCC
HC4P5504B-5X96 PLCC

HC5504B Pinout, Pinouts
HC5504B pinout,Pin out
This is one package pinout of HC5504B,If you need more pinouts please download HC5504B's pdf datasheet.

HC5504B Application circuits
HC5504B circuits
This is one application circuit of HC5504B,If you need more circuits,please download HC5504B's pdf datasheet.

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HC5504B Application Notes HC5504B RoHS HC5504B Circuits HC5504B footprint