|
|
Número de pieza | 74FR2245 | |
Descripción | Octal Bidirectional Transceiver with 3-STATE Outputs | |
Fabricantes | Fairchild | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de 74FR2245 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
No Preview Available ! April 1995
Revised August 1999
74FR2245
Octal Bidirectional Transceiver with 3-STATE Outputs
General Description
The 74FR2245 contains eight non-inverting bidirectional
buffers with 3-STATE outputs and is intended for bus-ori-
ented applications. Current sinking capability is 64 mA on
the A Port. The Transmit/Receive (T/R) input determines
the direction of data flow through the bidirectional trans-
ceiver. Transmit (active-HIGH) enables data from A Ports
to B Ports; Receive (active-LOW) enables data from B
Ports to A Ports. The Output Enable input, when HIGH, dis-
ables both A and B Ports by placing them in a High Z con-
dition.
Features
s Non-inverting buffers
s Bidirectional data path
s Guaranteed pin-to-pin skew
s 25Ω series resistors in B outputs eliminate the need for
external resistors
s 3-STATE outputs drive bus lines or buffer memory
address resistors
Ordering Code:
Order Number Package Number
Package Description
74FR2245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” letter to the ordering code.
Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names
OE
T/R
A0–A7
B0–B7
Description
Output Enable Input (Active-LOW)
Transmit/Receive Input
Side A Inputs or 3-STATE Outputs
Side B Inputs or 3-STATE Outputs
Truth Table
Inputs
OE T/R
LL
LH
HX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Output
Bus B Data to Bus A
Bus A Data to Bus B
High Z State
© 1999 Fairchild Semiconductor Corporation DS012114
www.fairchildsemi.com
1 page Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
Package Number M20B
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
5 www.fairchildsemi.com
5 Page |
Páginas | Total 5 Páginas | |
PDF Descargar | [ Datasheet 74FR2245.PDF ] |
Número de pieza | Descripción | Fabricantes |
74FR2240 | Octal Buffer/Line Driver with 25 Series Resistors in the Outputs | Fairchild |
74FR2240PC | Octal Buffer/Line Driver with 25 Series Resistors in the Outputs | Fairchild |
74FR2240SC | Octal Buffer/Line Driver with 25 Series Resistors in the Outputs | Fairchild |
74FR2244 | Octal Buffer/Line Driver with 25 Series Resistors in the Outputs | Fairchild |
Número de pieza | Descripción | Fabricantes |
SLA6805M | High Voltage 3 phase Motor Driver IC. |
Sanken |
SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
Analog Devices |
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |