ATM UNI Single 2488.32Mbps 1.8V/2.5V/3.3V 416-Pin UBGA
4-Channel ATM PHY IC, STS-3c/STM-1, 155.52 Mbps, POS-PHY/UTOPIA, SBGA-304
ATM/SONET/SDH IC, CMOS, PBGA520,
single chip device which handles bi-directional ATM Layer functions