DP84240 Datasheet, PDF (1/6 Pages) National Semiconductor (TI) – TRI-STATE Drivers Which are Designed For Heavy Capacitive Load Applications

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-in-
verting 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 _{tpd specified with 250 pF and 500 pF loads}
Y _{Output specified from 0 8V to 2 7V}
Y _{Designed for symmetric rise and fall times at 500 pF}
Y _{Outputs glitch free at power up and power down}
Y _{PNP inputs reduce DC loading on bus lines}
Y _{Low static and dynamic input capacitance}
Y _{Low skew times between edges and pins}
Y _{AC parameters specified with all outputs switching}
simultaneously
Connection Diagram
Truth Table
DP84240
Inputs
G
A
H
X
L
L
L
H
H e High Level
L e Low Level
X e Don’t Care
Z e High Impedance
Top View
TL F 5219 – 1
Order Number DP84240J or DP84240N
See NS Package Numbers J20A or N20A
Outputs
Y
Z
H
L
DP84244
Inputs
G
A
H
X
L
L
L
H
Outputs
Y
Z
L
H
Top View
TL F 5219 – 2
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