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DP84244N Datasheet

  • DP84244N

  • TRI-STATE Drivers Which are Designed For Heavy Capacitive Lo...

  • 6頁

  • NSC

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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-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
Y
Y
Y
Y
Y
Y
Y
t
pd
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鈥檛 Care
Z
e
High Impedance
TL F 5219 鈥?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 鈥?2
Top View
Order Number DP84244J or DP84244N
See NS Package Numbers J20A or N20A
C
1995 National Semiconductor Corporation
TL F 5219
RRD-B30M105 Printed in U S A

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