74HC648 Octal transceiver/register; 3-state; inverting
74HC648D Octal bus transceiver/register; 3-state; inverting
74HC648D-T Single 8-Bit Inverting Bus Transceiver
74HC648N Octal bus transceiver/register; 3-state; inverting
74HC648N3 Octal bus transceiver/register; 3-state; inverting
74HC648U Octal bus transceiver/register; 3-state; inverting