| 1218481 | MT8964AC | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218482 | MT8964AE | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218483 | MT8965 | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218484 | MT8965 | Integrated CODEC with A-Law companding and CCITT PCM encoding (18 pin PDIP) | Zarlink Semiconductor |
| 1218485 | MT8965AC | ISO2-CMOS Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218486 | MT8965AC | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218487 | MT8965AE | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218488 | MT8965AE | ISO2-CMOS Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218489 | MT8965AE | Integrated PCM Filter Codec | Zarlink Semiconductor |
| 1218490 | MT8966 | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218491 | MT8966 | Integrated CODEC with u-Law companding and CCITT PCM encoding (20 pin PDIP/SOIC) | Zarlink Semiconductor |
| 1218492 | MT8966AS | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218493 | MT8967 | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218494 | MT8967 | Integrated CODEC with A-Law companding and CCITT PCM encoding (20 pin PDIP/SOIC) | Zarlink Semiconductor |
| 1218495 | MT8967AS | ISO2-CMOS Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218496 | MT8967AS | Integrated PCM Filter Codec | Mitel Semiconductor |
| 1218497 | MT8967AS | Integrated PCM Filter Codec | Zarlink Semiconductor |
| 1218498 | MT8971B | Digital Subscriber Interface Circuit, Digital Network Interface Circuit | Mitel Semiconductor |
| 1218499 | MT8971B | Digital Subscriber Interface Circuit Digital Network Interface Circuit | Zarlink Semiconductor |
|
| 1218500 | MT8971BE | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1218501 | MT8971BP | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1218502 | MT89726 | 0.3-7.0V; 40mA; loop expender circuit. For digital subcriber lines | Mitel Semiconductor |
| 1218503 | MT89728 | 0.3-7.0V; 40mA; loop expender circuit. For digital subcriber lines | Mitel Semiconductor |
| 1218504 | MT8972B | Digital Subscriber Interface Circuit, Digital Network Interface Circuit | Mitel Semiconductor |
| 1218505 | MT8972B | Digital Subscriber Interface Circuit | Zarlink Semiconductor |
| 1218506 | MT8972BC | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1218507 | MT8972BE | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1218508 | MT8972BP | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1218509 | MT8976 | T1/ESF Framer Circuit | Zarlink Semiconductor |
| 1218510 | MT89760B | 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces | Mitel Semiconductor |
| 1218511 | MT89760BN | 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces | Mitel Semiconductor |
| 1218512 | MT89760BS | 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces | Mitel Semiconductor |
| 1218513 | MT89761 | T1 transmit equalizer | Mitel Semiconductor |
| 1218514 | MT8976AC | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1218515 | MT8976AE | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1218516 | MT8976AP | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1218517 | MT8977 | T1/ESF Framer Circuit (ACCUNET® T1.5) | Zarlink Semiconductor |
| 1218518 | MT8977AC | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1218519 | MT8977AE | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1218520 | MT8977AP | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
