OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS The SN54 / 74LS240, 241 and 244 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.
• Hysteresis at Inputs to Improve Noise Margins • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers • Input Clamp Diodes Limit High-Speed Termination Effects LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW) SN54 / 74LS240 VCC 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND SN54 / 74LS241 VCC 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 20 19 18 17 16 15 14 13...

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