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FSTU162211 Datasheet(PDF) 1 Page - Fairchild Semiconductor

No. de Pieza. FSTU162211
Descripción  24-Bit Bus Switch with .2V Undershoot Protection and 25Ω Series Resistors in Outputs (Preliminary)
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Fabricante  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
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FSTU162211 Datasheet(HTML) 1 Page - Fairchild Semiconductor

   
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Preliminary
© 2001 Fairchild Semiconductor Corporation
DS500064
www.fairchildsemi.com
June 2001
Revised June 2001
FSTU162211
24-Bit Bus Switch with
−2V Undershoot Protection
and 25
Ω Series Resistors in Outputs (Preliminary)
General Description
The Fairchild Switch FSTU162211 provides 24-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 a 12-bit or 24-bit bus switch.
When OE1 is LOW, the switch is ON and Port 1A is con-
nected to Port 1B. When OE2 is LOW, Port 2A is connected
to Port 2B. The A and B Ports are protected against under-
shoot to support an extended range to 2.0V below ground.
Fairchild’s
integrated
Undershoot
Hardened
Circuit
(UHC
) senses undershoot at the I/O and responds by
preventing voltage differentials from developing and turn-
ing the switch on.
The FSTU162211 has equivalent 25
Ω series resistors to
reduce signal-reflection noise, eliminating the need for
external terminating resistors.
Features
s Undershoot hardened to
−2V (A and B Ports)
s Slower output enable times to prevent signal disruption
s 25
Ω 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
s See Applications Note AN-5008 for details
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
UHC
 is a trademark of Fairchild Semiconductor Corporation.
Order Number
Package Number
Package Description
FSTU162211MTD
MTD56
56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide


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