器件名称: 54ABT240W-QML
功能描述: Octal Buffer/Line Driver with TRI-STATE Outputs
文件大小: 134.37KB 共8页
简 介:54ABT240 Octal Buffer/Line Driver with TRI-STATE Outputs
July 1998
54ABT240 Octal Buffer/Line Driver with TRI-STATE Outputs
General Description
The ’ABT240 is an inverting 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 Guaranteed latchup protection n High impedance glitch free bus loading during entire power up and power down cycle n Nondestructive hot insertion capability n Standard Microcircuit Drawing (SMD) — 5962-9318801
Features
n Output sink capability of 48 mA, source capability of 24 mA
Ordering Code
Military 54ABT240J-QML 54ABT240W-QML 54ABT240E-QML Package Number J20A W20A E20A Package Description 20-Lead Ceramic Dual-In-Line 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier, Type C
Connection Diagrams
Pin Assignment for DIP and Flatpak Pin Assignment for LCC
DS100202-2 DS100202-1
Pin Names OE1, OE2 I0–I7 O0–O7
Description TRI-STATE Output Enable Inputs Inputs Outputs
TRI-STATE is a registered trademark of National Semiconductor Corporation.
1998 National Semiconductor Corporation
DS100202
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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
In L H X
Outputs (Pins 12, 14, 16, 18) H L Z Outputs (Pins 3, 5, 7, 9) H L Z
In L H X
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2
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are……