www.DataSheet4U.com ICs for Communications Mini I.
PEF20534 - DMA Supported Serial Communication Controller with 4 Channels
PEF22554E - Quad E1/T1/J1 Framer and Line Interface Component for Long and Short Haul Applications
PEF20525 - 2 Channel Serial Optimized Communication Controller for HDLC/PPP
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