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74FR2240PCX View Datasheet(PDF) - Fairchild Semiconductor

Part NameDescriptionManufacturer
74FR2240PCX Octal Buffer/Line Driver with 25Ω Series Resistors in the Outputs Fairchild
Fairchild Semiconductor Fairchild
74FR2240PCX Datasheet PDF : 5 Pages
1 2 3 4 5
January 1991
Revised August 1999
74FR2240
Octal Buffer/Line Driver
with 25Series 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 25series resistors in outputs eliminate the need for
external resistors
s Designed to drive the capacitive inputs of MOS devices
Ordering Code:
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
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Descriptions
Pin Names
Description
OE1, OE2
I0–I7
O0–O7
Output Enable Input (Active-LOW)
Inputs
Outputs
Truth Tables
Inputs
OE1
In
L
L
L
H
H
X
Inputs
OE2
In
L
L
L
H
H
X
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Outputs
(Pins 12, 14, 16, 18)
H
L
Z
Outputs
(Pins 3, 5, 7, 9)
H
L
Z
© 1999 Fairchild Semiconductor Corporation DS010904
www.fairchildsemi.com
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