Found 7 alternatives for CS61574A-IP1 by Rochester Electronics, LLC. Interface Telecom — 28-DIP (0.600", 15.24mm).
IC TELECOM INTERFACE 28DIP
ITU CO/LOOP CARRIER SLIC
EIA/ITU 24V PABX SLIC
EIA/ITU 24V PABX SLIC
ITU CO/LOOP CARRIER SLIC
T1/E1 UNIVERSAL LINE INTERFACE
CS61575 - T1/E1 LINE INTERFACE