इसी प्रकार केHC5521

• HC5503
  • Low Cost 24V SLIC For PABX / Key Systems
• HC5503
  • Low Cost 24V SLIC For PABX / Key Systems
• HC5503PRC
  • Low Cost SLIC For Large Telecom Switches
• HC5503T
  • Balanced PBX / Key System SLIC, Subscriber Line Interface Circuit
• HC5509A1R3060
  • SLIC Subscriber Line Interface Circuit
• HC55120
  • Low Power Universal SLIC Family
• HC5513
  • TR909 DLC/FLC SLIC With Low Power Standby
• HC55130
  • Low Power Universal SLIC Family