| 1175881 | MT8971B | Digital Subscriber Interface Circuit Digital Network Interface Circuit | Zarlink Semiconductor |
| 1175882 | MT8971BE | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1175883 | MT8971BP | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1175884 | MT89726 | 0.3-7.0V; 40mA; loop expender circuit. For digital subcriber lines | Mitel Semiconductor |
| 1175885 | MT89728 | 0.3-7.0V; 40mA; loop expender circuit. For digital subcriber lines | Mitel Semiconductor |
| 1175886 | MT8972B | Digital Subscriber Interface Circuit, Digital Network Interface Circuit | Mitel Semiconductor |
| 1175887 | MT8972B | Digital Subscriber Interface Circuit | Zarlink Semiconductor |
| 1175888 | MT8972BC | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1175889 | MT8972BE | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1175890 | MT8972BP | ISO2-CMOS ST-BUS¢â FAMILY Digital Subscriber Interface Circuit Digital Network Interface Circuit | Mitel Semiconductor |
| 1175891 | MT8976 | T1/ESF Framer Circuit | Zarlink Semiconductor |
| 1175892 | MT89760B | 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces | Mitel Semiconductor |
| 1175893 | MT89760BN | 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces | Mitel Semiconductor |
| 1175894 | MT89760BS | 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces | Mitel Semiconductor |
| 1175895 | MT89761 | T1 transmit equalizer | Mitel Semiconductor |
| 1175896 | MT8976AC | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1175897 | MT8976AE | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1175898 | MT8976AP | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1175899 | MT8977 | T1/ESF Framer Circuit (ACCUNET® T1.5) | Zarlink Semiconductor |
|
| 1175900 | MT8977AC | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1175901 | MT8977AE | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1175902 | MT8977AP | ISO-CMOS ST-BUS¢â FAMILY T1/ESF Framer Circuit | Mitel Semiconductor |
| 1175903 | MT8979 | CEPT PCM 30/CRC-4 Framer & Interface | Zarlink Semiconductor |
| 1175904 | MT89790B | 0.3-7.0V; 40mA; CEPT PCM 30/CRC-4 framer & interface circuit. For primary rate ISDN network nodes, multiplexing equipment, private network: PBX to PBX links | Mitel Semiconductor |
| 1175905 | MT89790BN | 0.3-7.0V; 40mA; CEPT PCM 30/CRC-4 framer & interface circuit. For primary rate ISDN network nodes, multiplexing equipment, private network: PBX to PBX links | Mitel Semiconductor |
| 1175906 | MT89790BS | 0.3-7.0V; 40mA; CEPT PCM 30/CRC-4 framer & interface circuit. For primary rate ISDN network nodes, multiplexing equipment, private network: PBX to PBX links | Mitel Semiconductor |
| 1175907 | MT8979AC | ISO-CMOS ST-BUS¢â FAMILY CEPT PCM 30/CRC-4 Framer & Interface | Mitel Semiconductor |
| 1175908 | MT8979AE | ISO-CMOS ST-BUS¢â FAMILY CEPT PCM 30/CRC-4 Framer & Interface | Mitel Semiconductor |
| 1175909 | MT8979AP | ISO-CMOS ST-BUS¢â FAMILY CEPT PCM 30/CRC-4 Framer & Interface | Mitel Semiconductor |
| 1175910 | MT8980 | 256 x 256 Channels (8 TDM Streams at 2.048 Mbps) Non-blocking Digital Switch (DX) | Zarlink Semiconductor |
| 1175911 | MT8980D | ISO-CMOS ST-BUS FAMILY Digital Switch | Mitel Semiconductor |
| 1175912 | MT8980D-1 | ISO-CMOS ST-BUS¢â FAMILY Digital Switch | Mitel Semiconductor |
| 1175913 | MT8980DE | ISO-CMOS ST-BUS¢â FAMILY Digital Switch | Mitel Semiconductor |
| 1175914 | MT8980DE | ISO-CMOS ST-BUS¢â FAMILY Digital Switch | Mitel Semiconductor |
| 1175915 | MT8980DP | ISO-CMOS ST-BUS¢â FAMILY Digital Switch | Mitel Semiconductor |
| 1175916 | MT8980DP | ISO-CMOS ST-BUS¢â FAMILY Digital Switch | Mitel Semiconductor |
| 1175917 | MT8981 | 128 x 128 Channels (4 TDM Streamsat 2.048 Mbps) Non-blocking Digital Switch | Zarlink Semiconductor |
| 1175918 | MT8981D | ISO-CMOS ST-BUS¢â FAMILY Digital Switch | Mitel Semiconductor |
| 1175919 | MT8981D | Digital Switch | Zarlink Semiconductor |
| 1175920 | MT8981D | ISO-CMOS ST-BUS | Zarlink Semiconductor |
