Part # 74LS240 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: DM54LS240 DM74LS240, DM54LS241 DM74LS241 Octal TRI-STATE(RM) Buffers Line Drivers Line Receivers

Part Details:

Octal DM54LS240DM74LS240 April 1992 TRI-STATE DM54LS240 DM74LS240DM54LS241 DM74LS241Octal TRI-STATE Buffers Line Drivers Line Receivers Y Typical I BuffersLine General Description OL (sink current) 54LS 12 mA These buffers line drivers are designed to improve both the 74LS 24 mA performance and PC board density of TRI-STATE buffers Y Typical I drivers employed as memory-address drivers clock drivers OH (source current) 54LS b12 mA and bus-oriented transmitters receivers Featuring 400 mV 74LS b15 mA of hysteresis at each low current PNP data line input they Y DM54LS241DM74LS241 Typical propagation delay times provide improved noise rejection and high fanout outputs Inverting 10 5 ns and can be used to drive terminated lines down to 133X Noninverting 12 ns Features Y Typical enable disable time 18 ns DriversLine Y Typical power dissipation (enabled) Y TRI-STATE outputs drive bus lines directly Inverting 130 mW Y PNP inputs reduce DC loading on bus lines Noninverting 135 mW Y Hysteresis at data inputs improves noise margins Connection Diagrams Dual-In-Line Package Dual-In-Line Package

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74LS240.pdf Datasheet