Octal Buffer/Line Driver
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54AC240 • 54ACT240 Octal Buffer/Line Driver with TRI-STATE Outputs
August 1998
54AC240 • 54ACT240...
Description
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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
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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
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2
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors ...
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