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PDF 74FR2244 Data sheet ( Hoja de datos )
| Número de pieza | 74FR2244 | |
| Descripción | Octal Buffer/Line Driver with 25 Series Resistors in the Outputs | |
| Fabricantes | Fairchild | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 74FR2244 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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June 1991
Revised August 1999
74FR2244
Octal Buffer/Line Driver
with 25Ω Series Resistors in the Outputs
General Description
The 74FR2244 is a non-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 25Ω series 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
74FR2244SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74FR2244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74FR2244PC
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
OE1, OE2
I0–I7
O0–O7
Truth Tables
Description
Output Enable Input (Active-LOW)
Inputs
Outputs
Inputs
OE1
L
In
L
LH
HX
Outputs
(Pins 12, 14, 16, 18)
L
H
Z
Inputs
OE2
L
In
L
LH
HX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Outputs
(Pins 3, 5, 7, 9)
L
H
Z
© 1999 Fairchild Semiconductor Corporation DS010931
www.fairchildsemi.com
1 page  
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N20A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
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| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet 74FR2244.PDF ] | |
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