DM74LS241 Datasheet | National Semiconductor

Description These buffers line drivers are designed to improve both the performance and PC board density of TRI-STATE buffers drivers employed as memory-address drivers clock drivers and bus-oriented transmitters receivers Featuring 400 m V of hysteresis at each low current PNP data line input they provide improved noise rejection and high fanout outputs and can be used to drive terminated lines down to 133X Features TRI-STATE outputs drive bus lines directly PNP inputs reduce DC loading on bus lines Hysteresis at data inputs improves noise margins Typical IOL (sink current) 54LS 12 m A 74LS 24 m A Typical IOH (source current) b 12 m A 54LS b 15 m A 74LS Typical propagation delay times Inverting 10 5 ns Noninverting 12 ns Typical enable disable time 18 ns Typical power dissipation (enabled) Inverting 130 m W Noninverting 135 m W Connection Diagrams Dual-In-Line Package Dual-In-Line Package TL F 6411 - 1 TL F 6411 - 2 Order Number DM54LS240J DM54LS240W DM54LS240E DM74LS240WM or DM74LS240N See NS Package Number E20A J20A M20B N20A or W20A Order Number DM54LS241J DM54LS241W DM54LS241E DM74LS241WM or DM74LS241N See NS Package Number E20A J20A M20B N20A or W20A Function Tables LS240 Inputs G L L H A L H X Output Y H L Z G X X X H H L G L L H X X X LS241 Inputs 1A L H X X X X 2A X X X L H X Outputs 1Y L H Z L H Z 2Y L e Low Logic Level H e High Logic Level X e Either Low or High Logic Level Z e High Impedance TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 6411 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 7V Input Voltage 7V Operating Free Air Temperature Range b 55 C to a 125 C DM54LS 54LS DM74LS 0 C to a 70 C b 65 C to a 150 C Storage Temperature Range Note The ‘‘Absolute Maximum Ratings’’...