DP84240| Datasheet

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DP84240 DP84244 Octal TRI-STATE MOS Drivers

March 1986

DP84240 DP84244 Octal TRI-STATE MOS Drivers
General Description
The DP84240 and DP84244 are octal TRI-STATE drivers which are designed for heavy capacitive load applications such as fast data buffers or as memory address drivers The DP84240 is an inverting driver which is pin-compatible with both the 74S240 and AM2965 The DP84244 is a non-inverting driver which is pin-compatible with the 74S244 and AM2966 These parts are fabricated using an oxide isolation process for much faster speeds and are specified for 250 pF and 500 pF load capacitances
TRI-STATE is a registered trademark of National Semiconductor Corp

Features
Y Y Y Y Y Y Y Y

tpd specified with 250 pF and 500 pF loads Output specified from 0 8V to 2 7V Designed for symmetric rise and fall times at 500 pF Outputs glitch free at power up and power down PNP inputs reduce DC loading on bus lines Low static and dynamic input capacitance Low skew times between edges and pins AC parameters specified with all outputs switching simultaneously

Connection Diagram

Truth Table
DP84240 Inputs G H L L
H e High Level L e Low Level X e Don't Care Z e High Impedance
TL F 5219 1

A X L H

Outputs Y Z H L

Top View Order Number DP84240J or DP84240N See NS Package Numbers J20A or N20A

DP84244 Inputs G H L L A X L H Outputs Y Z L H

TL F 5219 2

Top View Order Number DP84244J or DP84244N See NS Package Numbers J20A or N20A

C1995 National Semiconductor Corporation

TL F 5219

RRD-B30M105 Printed in U S A

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DP84240 DATASHEET