MH89770 series datasheets. Manufacturer: Mitel Semiconductor.

MH89770N 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces, computer to PBX interfaces (DMI and CPI), high speed computer to computer data links in 40-pin DIL package. Operational temperature range from 0°C to 70°C. Datasheet*) MH89770S 0.3-7.0V; 40mA; T1/ESF framer & interface circuit. For DS1/ESF digital trunk interfaces, computer to PBX interfaces (DMI and CPI), high speed computer to computer data links in 40-pin Surface Mount package. Operational temperature range from 0°C to 70°C. Datasheet*) MH89770 T1/ESF Framer & Interface Preliminary Information Datasheet*)

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