HC-5504 feed equivalent, itu low cost/ pabx slic with 40ma loop feed.
* Pin for Pin Replacement for the HC-5504
* Capable of 5V or 12V (VB+) Operation
* Monolithic Integrated Device
* DI High Voltage Process
* Compatible.
* Solid State Line Interface Circuit for Analog and Digital PBX Systems
* Direct Inward Dial (DID) Trunks
* .
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.
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