| 645961 | HC55181DIM | Extended Reach Ringing SLIC Family | Intersil |
| 645962 | HC55182 | SLIC, Extended Reach Ringing, 85V, Polarity Reversal/Bat Switch, Loop Back or Full Test, LB=53dB | Intersil |
| 645963 | HC55182AIM | Extended Reach Ringing SLIC Family | Intersil |
| 645964 | HC55182BIM | Extended Reach Ringing SLIC Family | Intersil |
| 645965 | HC55182CIM | Extended Reach Ringing SLIC Family | Intersil |
| 645966 | HC55182DIM | Extended Reach Ringing SLIC Family | Intersil |
| 645967 | HC55183 | SLIC, Extended Reach Ringing, 75V, Bat. Switch, LB=45dB | Intersil |
| 645968 | HC55183ECM | Extended Reach Ringing SLIC Family | Intersil |
| 645969 | HC55184 | SLIC, Extended Reach Ringing, 75V, Bat. Switch, Polarity Reversal, LB=45dB | Intersil |
| 645970 | HC55184ECM | Extended Reach Ringing SLIC Family | Intersil |
| 645971 | HC55185 | SLIC, Ringing, VoIP, 75/85/100V, Gnd Start, LB=53/58dB | Intersil |
| 645972 | HC55185AIM | VoIP Ringing SLIC Family | Intersil |
| 645973 | HC55185BIM | VoIP Ringing SLIC Family | Intersil |
| 645974 | HC55185CIM | VoIP Ringing SLIC Family | Intersil |
| 645975 | HC55185DIM | VoIP Ringing SLIC Family | Intersil |
| 645976 | HC55185ECM | VoIP Ringing SLIC Family | Intersil |
| 645977 | HC55185FCM | VoIP Ringing SLIC Family | Intersil |
| 645978 | HC5518XEVAL1 | VoIP Ringing SLIC Family | Intersil |
| 645979 | HC5520 | CO/PABX Polarity Reversal Subscriber Line Interface Circuit | Intersil |
|
| 645980 | HC5520CM | CO/PABX Polarity Reversal Subscriber Line Interface Circuit | Intersil |
| 645981 | HC5520CQ | CO/PABX Polarity Reversal Subscriber Line Interface Circuit | Intersil |
| 645982 | HC5521 | Subsciber Line Interface Circuit | Intersil |
| 645983 | HC5521 | SLIC Subscriber Line Interface Circuit | Intersil |
| 645984 | HC5521CM | Subscriber line interface circuit | Harris Semiconductor |
| 645985 | HC5521CM | SLIC Subscriber Line Interface Circuit | Intersil |
| 645986 | HC5521CQ | Subscriber line interface circuit | Harris Semiconductor |
| 645987 | HC5521CQ | SLIC Subscriber Line Interface Circuit | Intersil |
| 645988 | HC5523 | LSSGR/TR57 CO/Loop Carrier SLIC with Low Power Standby | Intersil |
| 645989 | HC5523IM | LSSGR/TR57 CO/Loop Carrier SLIC with Low Power Standby | Intersil |
| 645990 | HC5523IP | LSSGR/TR57 CO/Loop Carrier SLIC with Low Power Standby | Intersil |
| 645991 | HC5526 | ITU CO/PABX SLIC with Low Power Standby | Intersil |
| 645992 | HC5526CM | ITU CO/PABX SLIC with Low Power Standby | Intersil |
| 645993 | HC5526CP | ITU CO/PABX SLIC with Low Power Standby | Intersil |
| 645994 | HC5526IM | ITU CO/PABX SLIC with Low Power Standby | Intersil |
| 645995 | HC5526IP | ITU CO/PABX SLIC with Low Power Standby | Intersil |
| 645996 | HC5549 | SLIC, Low Power, with Battery Switch | Intersil |
| 645997 | HC5549CM | Low Power SLIC with Battery Switch | Intersil |
| 645998 | HC5549IM | Low Power SLIC with Battery Switch | Intersil |
| 645999 | HC573 | Octal 3-State Noninverting Transparent Latch(High-Performance Silicon-Gate CMOS) | System Logic Semiconductor |
| 646000 | HC595 | 8-Bit Serial-Input/Serial or Parallel-Output Shift Register with Latched 3-State Outputs | System Logic Semiconductor |
