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PEF22554E - Quad E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications
PEF2256E - E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications
PEF2256H - E1/T1/J1 Framer and Line Interface Component for Long- and Short-Haul Applications
PEF3460E - Single channel T3/E3 Framer & Line Interface for ATM/ Frame Relay and PPP/IP
DS26519 - single-chip 16-port framer and line interface unit (LIU) combination