74HC646 Octal transceiver/register; 3-state
74HC646D Octal transceiver/register; 3-state
74HC646D-T Single 8-bit Bus Transceiver
74HC646DB Octal transceiver/register; 3-state
74HC646N Octal transceiver/register; 3-state
74HC646N3 Octal bus transceiver/register; 3-state
74HC646PW Octal transceiver/register; 3-state
74HC646U Octal bus transceiver/register; 3-state