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74FR244SC Datasheet(PDF) 1 Page - Fairchild Semiconductor

No. de pieza 74FR244SC
Descripción Electrónicos  Octal Buffer/Line Driver with 3-STATE Outputs
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
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74FR244SC Datasheet(HTML) 1 Page - Fairchild Semiconductor

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© 2001 Fairchild Semiconductor Corporation
DS010900
www.fairchildsemi.com
December 1990
Revised May 2001
74FR244
Octal Buffer/Line Driver with 3-STATE Outputs
General Description
The 74FR244 is a non-inverting octal buffer and line driver
designed to be employed as memory and address driver,
clock driver and bus-oriented transmitter/receiver.
Features
s 3-STATE outputs drive bus lines or buffer memory
address registers
s Outputs sink 64 mA and source 15 mA
s Guaranteed pin-to-pin skew
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Truth Tables
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Immaterial
Z
= High Impedance
Order Number
Package Number
Package Description
74FR244SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74FR244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74FR244PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Pin Names
Description
OE1,–OE2
Output Enable Input (Active-LOW)
I0–I7
Inputs
O0–O7
Outputs
Inputs
Outputs
OE1
In
(Pins 12, 14, 16, 18)
LL
L
LH
H
HX
Z
Inputs
Outputs
OE2
In
(Pins 3, 5, 7, 9)
LL
L
LH
H
HX
Z


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