Found 7 alternatives for HC5503CCB by Rochester Electronics, LLC. Interface Telecom — 24-SOIC (0.295", 7.50mm Width).
EIA/ITU PABX SLIC
SLIC, 2-4 CONVERSION, BIPOLAR
LOW COST 24V SLIC FOR PABX/KEY S
SLIC, BIPOLAR, PDSO24
SLIC, 2-4 CONVERSION, BIPOLAR
SUBSCRIBER DTMF RECEIVER
SLIC, 2-4 CONVERSION, BIPOLAR