54AC240 Datasheet | National Semiconductor

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 m A n ’ACT240 has TTL-patible 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 .national. 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 .national. Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) DC Input Diode Current (IIK) VI = - 0.5V VI = VCC + 0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO = - 0.5V VO = VCC + 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) Storage Temperature (TSTG) Junction Temperature (TJ) CDIP - 0.5V to +7.0V - 20 m A +20 m A - 0.5V to VCC + 0.5V - 20 m A +20 m A - 0.5V to VCC + 0.5V Remended Operating Conditions Supply Voltage (VCC) ’AC ’ACT Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) 54AC/ACT Minimum Input Edge Rate (∆V/∆t) ’AC Devices VIN from 30% to 70% of VCC VCC @ 3.3V, 4.5V, 5.5V Minimum Input...