Balanced PBX / Key System SLIC, Subscriber Line Interface Circuit

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.
The HC5503T provides: Current Limited DC feed to the subscriber loop, maintains a flat frequency response over the voice band and beyond, has self resetting thermal protection that allows conversation to continue while the fault is present, provides a TTL subscriber off hook indication even in the presence of longitudinal currents, and limits system power consumption on short loops.
The HC5503T provides balanced 2-wire transmission and has excellent longitudinal balance, while providing on hook transmission and longitudinal current rejection in both the on-hook or off-hook conditions. The SLIC needs only one +5V supply in addition to the main battery supply for loop current and operates over a range of battery voltages (-24V to -58V).
Available in 24SO packaging. The HC5503T is ideally suited as a replacement for Discrete line circuits in low cost Analog PABXs, small Office/Home Office products or Small Key Systems.
By Intersil Corporation
Part Manufacturer Description Datasheet Samples
HC5503TCBZ Intersil Corporation Balanced PBX / Key System SLIC, Subscriber Line Interface Circuit; SOIC24; Temp Range: 0° to 70°
HC5503TCBZ96 Intersil Corporation Balanced PBX / Key System SLIC, Subscriber Line Interface Circuit; SOIC24; Temp Range: 0° to 70°
HC5503TCB Intersil Corporation TELECOM-SLIC, PDSO24, PLASTIC, MS-013AD, SOIC-24
HC5503TCB96 Intersil Corporation TELECOM-SLIC, PDSO24, PLASTIC, MS-013AD, SOIC-24
HC5503T 's PackagesHC5503T 's pdf datasheet
HC5503TCB SOIC
HC5503TCB96 SOIC
HC5503TCBZ SOIC
HC5503TCBZ96 SOIC




HC5503T Pinout, Pinouts
HC5503T pinout,Pin out
This is one package pinout of HC5503T,If you need more pinouts please download HC5503T's pdf datasheet.

HC5503T Application circuits
HC5503T circuits
This is one application circuit of HC5503T,If you need more circuits,please download HC5503T's pdf datasheet.


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