54ACT240

www.DataSheet4U.com 54AC240 54ACT240 Octal Buffer/Line Driver with TRI-STATE Outputs August 1998 54AC240 54ACT240 Octal Buffer/Line Driver with TRI-STATE ® Outputs General Description The ’AC/’ACT240 is an octal buffer and line driver designed to be employed as a memory address driver, clock driver and bus oriented transmitter or receiver which provides improved PC board density. n Inverting TRI-STATE outputs drive bus lines or buffer memory address registers n Outputs source/sink 24 mA n ’ACT240 has TTL-compatible inputs n Standard Microcircuit Drawing (SMD) — ’AC240: 5962-87550 — ’ACT240: 5962-87759 Features n ICC and IOZ reduced by 50% Logic Symbol IEEE/IEC Connection Diagrams Pin Assignment for DIP and Flatpak DS100280-2 DS100280-1 Pin Assignment for LCC Pin Names OE1, OE2 I0–I7 O0–O7 Inputs Outputs Description TRI-STATE Output Enable Inputs DS100280-3 TRI-STATE ® is a registered trademark of National Semiconductor Corporation. FACT ® is a registered trademark of Fairchild Semiconductor Corporation. © 1998 National Semiconductor Corporation DS100280 www.national.com Truth Tables Inputs OE1 L L H Inputs OE2 L L H H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance Outputs In L H X (Pins 12, 14, 16, 18) H L Z Outputs In L H X (Pins 3, 5, 7, 9) H L Z www.national.com 2 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors ...