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National Semiconductor Electronic Components Datasheet

74F2244 Datasheet

Octal Buffer/Line Driver with 25X Series Resistors in Outputs

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August 1995
54F 74F2244
Octal Buffer Line Driver with 25X Series
Resistors in Outputs
General Description
The ’F2244 is an octal buffer line driver designed to drive
the capacitive inputs of MOS memory drivers address driv-
ers clock drivers and bus-oriented transmitters receivers
The 25X series resistors in the outputs reduce ringing and
eliminate the need for external resistors
Features
Y TRI-STATE outputs drive bus lines or buffer memory
address registers
Y 12 mA source current
Y 25X series resistors in outputs eliminate the need for
external resistors
Y Designed to drive the capacitive inputs of MOS devices
Y Guaranteed 4000V minimum ESD protection
Commercial
74F2244PC
74F2244SC (Note 1)
74F2244MSA (Note 1)
Military
54F2244DM (Note 2)
54F2244FM (Note 2)
54F2244LM (Note 2)
Package
Number
N20B
J20A
M20B
MSA20
W20A
E20A
Package Description
20-Lead (0 300 Wide) Molded Dual-In-Line
20-Lead Ceramic Dual-In-Line
20-Lead (0 300 Wide) Molded Small Outline JEDEC
20-Lead Molded Shrink Small Outline EIAJ Type II
20-Lead Cerpak
20-Lead Ceramic Leadless Chip Carier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX and MSAX
Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Connection Diagrams
Pin Assignment for LCC
’F2244
Pin Assignment for DIP SOIC and SSOP
’F2244
TL F 9499 – 3
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9499
TL F 9499 – 4
RRD-B30M105 Printed in U S A


National Semiconductor Electronic Components Datasheet

74F2244 Datasheet

Octal Buffer/Line Driver with 25X Series Resistors in Outputs

No Preview Available !

Logic Symbol
IEEE IEC
’F2244
Unit Loading Fan Out
Pin Names
Description
OE1 OE2
OE2
Ian Ibn
Oan Obn
TRI-STATE Output Enable Input (Active LOW)
TRI-STATE Output Enable Input (Active HIGH)
Inputs
Outputs
Worst-case ’F2244 disabled
Truth Table
’F2244
OE1 Ian Oan OE2 Ibn Obn
HXZ
L HH
L LL
HXZ
L HH
LLL
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
Z e High Impedance
TL F 9499 – 6
54F 74F
UL
HIGH LOW
1 0 1 667
1 0 1 667
1 0 2 667
750 20
Input IIH IIL
Output IOH IOL
20 mA b1 mA
20 mA b1 mA
20 mA b1 6 mA
b15 mA 12 mA
2


Part Number 74F2244
Description Octal Buffer/Line Driver with 25X Series Resistors in Outputs
Maker National
Total Page 8 Pages
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