SN74FB2033A 8-BIT TTL/BTL REGISTERED TRANSCEIVER .
SN74FB2033A - 8-Bit TTL/BTL Registered Transceiver
SN74FB2033A 8-BIT TTL/BTL REGISTERED TRANSCEIVER D Compatible With IEEE Std 1194.1-1991 (BTL) D TTL A Port, Backplane Transceiver Logic (BTL) B Port .