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FSTU32X800QSP Datasheet

  • FSTU32X800QSP

  • 20-Bit Bus Switch with Precharged Outputs and -2V Undershoot...

  • 5頁

  • FAIRCHILD

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FSTU32X800 20-Bit Bus Switch with Precharged Outputs
November 2002
Revised November 2002
FSTU32X800
20-Bit Bus Switch with Precharged Outputs
and
鈭?/div>
2V Undershoot Protection
General Description
The Fairchild Switch FSTU32X800 provides 20-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 A and B Ports are
protected against undershoot to support an extended
range to 2.0V below ground. Fairchild鈥檚 integrated Under-
shoot Hardened Circuit (UHC
錚?/div>
) senses undershoot at the
I/O and responds by preventing voltage differentials from
developing and turning the switch on. The device also pre-
charges the B Port to a selectable bias voltage (BiasV) to
minimize live insertion noise.
The device is organized as two 10-bit switches with a bus
enable (OE
n
) signal. When OE
n
is LOW, the switch is ON
and Port A is connected to Port B. When OE
n
is HIGH, the
switch is OPEN and the B Port is precharged to BiasV
through an equivalent 10-k
鈩?/div>
resistor.
Features
s
4
鈩?/div>
switch connection between two ports
s
Undershoot Hardened to -2.0V
s
Soft enable turn-on to minimize bus-to-bus charge
sharing during enable
s
Low l
CC
s
Zero bounce in flow-through mode
s
Output precharge to minimize live insertion noise
s
Control inputs compatible with TTL level
s
See Applications Note AN-5008 for details
Ordering Code:
Order Number
FSTU32X800QSP
Package
Number
MQA48A
Package Description
48-Lead Quarter Size Very Small Outline Package (QVSOP), JEDEC MO-154, 0.150" Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
UHC錚?is a trademark of Fairchild Semiconductor Corporation.
漏 2002 Fairchild Semiconductor Corporation
DS500791
www.fairchildsemi.com

FSTU32X800QSP 產(chǎn)品屬性

  • 48

  • 集成電路 (IC)

  • 邏輯 - 信號開關(guān)，多路復用器，解碼器

  • -

  • 總線開關(guān)

  • 10 x 1:1

  • 2

  • -

  • 單電源

  • 4 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 48-QVSOP

  • 48-QVSOP

  • 管件

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