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Número de pieza | FST3345 | |
Descripción | 8-Bit Bus Switch | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de FST3345 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
No Preview Available ! June 1997
Revised March 2005
FST3345
8-Bit Bus Switch
General Description
The Fairchild Switch FST3345 provides 8-bits of high-
speed CMOS TTL-compatible bus switching. The low on
resistance of the switch allows inputs to be connected to
outputs without adding propagation delay or generating
additional ground bounce noise.
The device is organized as an 8-bit switch bank with dual
output enable inputs (OE and OE). When OE is LOW or
OE is HIGH, the switch is ON and Port A is connected to
Port B. When OE is HIGH and OE is LOW, the switch is
OPEN and a high-impedance state exists between the two
ports.
Features
s 4: switch connection between two ports.
s Minimal propagation delay through the switch.
s Low lCC.
s Zero bounce in flow-through mode.
s Control inputs compatible with TTL level.
Ordering Code:
Order Number
Package
Number
Package Description
FST3345WM
M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
FST3345QSC
MQA20 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide
FST3345MTC
MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
FST3345MTCX_NL MTC20 Pb-Free 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
(Note 1)
Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Note 1: “_NL” indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
Logic Diagram
Connection Diagram
Pin Descriptions
Pin Name
OE, OE
A
B
Description
Bus Switch Enables
Bus A
Bus B
Truth Table
Inputs
OE OE
XL
HX
LH
Function
Connect
Connect
Disconnect
© 2005 Fairchild Semiconductor Corporation DS500019
www.fairchildsemi.com
1 page Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package Number MTC20
Technology Description
The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its
74LVX3L384 (FST3384) bus switch product.
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 FST3345.PDF ] |
Número de pieza | Descripción | Fabricantes |
FST3345 | 8-Bit Bus Switch | Fairchild Semiconductor |
FST3345MTC | 8-Bit Bus Switch | Fairchild Semiconductor |
FST3345QSC | 8-Bit Bus Switch | Fairchild Semiconductor |
FST3345WM | 8-Bit Bus Switch | Fairchild Semiconductor |
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