HC4P5504B1-5 feed equivalent, itu low cost/ pabx slic with 40ma loop feed.
* Low Cost Version of the HC-5504B
* Capable of 5V or 12V (VB+) Operation
* Monolithic Integrated Device
* DI High Voltage Process
* Compatible With W.
* Solid State Line Interface Circuit for Analog and Digital PBX Systems
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HC-5504B1 (PLCC) TOP VIEW
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