74LS240 - LOW POWER SCHOTTKY
SN74LS240 SN74LS244 Octal Buffer/Line Driver with 3-State Outputs The SN74LS240 and SN74LS244 are Octal Buffers and Line Drivers designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters/receivers which provide improved PC board density.
http://onsemi.com Hysteresis at Inputs to Improve Noise Margins 3-State Outputs Drive Bus Lines or Buffer Memory Address Input Clamp Diodes Limit High-Speed Termination Effects GUARANTEED OPERAT