HC5503CB
Low Cost 24V SLIC For PABX/Key Systems
HC5503CB96
Subscriber Line Interface Circuit
HC5503CCB
Unbalanced PBX/Key System SLIC, Subscriber Line..
HC5503CCP
Unbalanced PBX/Key System SLIC, Subscriber Line..
HC5503CM
Low Cost 24V SLIC For PABX/Key Systems