18-Bit Registered Bus Transceiver, 1.65-3.6V, TSSOP-56, Industrial
74ALVCH16600 18-Channel 3-State Transceiver, TSSOP56 Package, 1.65V to 3.6V Supply

ALVC/VCX/A SERIES, 18-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO56, GREEN, PLASTIC, TSSOP-56
18-bit universal bus transceiver with 3-state outputs 56-TSSOP -40 to 85