s 3-STATE version of DM74LS153 with same pinout s Schottky-diode-clamped transistors s Permit multiplexing from N-lines to one line s Performs parallel-to-serial conversi.

Each of these Schottky-clamped data selectors/multiplexers contains inverters and drivers to supply fully complementary, on-chip, binary decoding data selection to the AND-OR gates. Separate output control inputs are provided for each of the two four.

74LS251

74LS256

74LS257

74LS257B

74LS258B

74LS259

74LS20

74LS21

74LS22

74LS221

74LS240

74LS241

74LS243