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74FR2240 Datasheet(PDF) 1 Page - Fairchild Semiconductor

No. de pieza 74FR2240
Descripción Electrónicos  Octal Buffer/Line Driver with 25廓 Series Resistors in the Outputs
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74FR2240 Datasheet(HTML) 1 Page - Fairchild Semiconductor

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© 1999 Fairchild Semiconductor Corporation
DS010904
www.fairchildsemi.com
January 1991
Revised August 1999
74FR2240
Octal Buffer/Line Driver
with 25
Ω Series Resistors in the Outputs
General Description
The
74FR2240 is an inverting octal buffer and line driver
designed to drive capacitive inputs of MOS memory
devices, address and clock lines or act as a low under-
shoot general purpose bus driver.
Features
s 3-STATE outputs drive bus lines or buffer memory
address registers
s Outputs sink 12 mA and source 15 mA
s 25
Ω series resistors in outputs eliminate the need for
external resistors
s Designed to drive the capacitive inputs of MOS devices
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
74FR2240SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74FR2240PC
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
H
LH
L
HX
Z
Inputs
Outputs
OE2
In
(Pins 3, 5, 7, 9)
LL
H
LH
L
HX
Z


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