DS2143 Datasheet, Dallas Semiconducotr

E1/ISDN-PRI framing transceiver Frames to CAS, CCS, and CRC4 formats Parallel control port Onboard two frame elastic store slip buffer Extracts and inserts CAS signaling .

Onboard Sa data link support circuitry FEBE E-Bit detection, counting and generation Pin-compatible with DS2141A T1 Cont.