FSTU3253 Fairchild Semiconductor, FSTU3253 Datasheet

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FSTU3253

Manufacturer Part Number
FSTU3253
Description
Dual 4:1 Multiplexer-Demultiplexer Bus Switch with -2V Undershoot Protection
Manufacturer
Fairchild Semiconductor
Datasheet
© 2001 Fairchild Semiconductor Corporation
FSTU3253M
FSTU3253QSC
FSTU3253MTC
FSTU3253
Dual 4:1 Multiplexer/Demultiplexer Bus Switch
with 2V Undershoot Protection
General Description
The Fairchild Switch FSTU3253 is a dual 4:1 high-speed
CMOS
switch. The low On Resistance of the switch allows inputs
to be connected to outputs without adding propagation
delay or generating additional ground bounce noise.
When OE is LOW, S
selected B Port output. When OE is HIGH, the switch is
OPEN and a high-impedance state exists between the two
ports.
The A and B Ports are protected against undershoot to
support an extended range to 2.0V below ground.
Fairchild’s
(UHC ) senses undershoot at the I/O and responds by
preventing voltage differentials from developing and turn-
ing the switch on.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Order Number
TTL-compatible
integrated
Package Number
0
and S
MQA16
MTC16
Undershoot
M16A
multiplexer/demultiplexer
1
connect the A Port to the
Hardened
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
DS500475
Circuit
bus
Features
Undershoot hardened to 2.0V
4 switch connection between two ports
Minimal propagation delay through the switch
Low l
Zero bounce in flow-through mode
Control inputs compatible with TTL level
See application note AN-5008 and AN-5021 for details
on undershoot
CC
Package Description
August 2001
Revised September 2001
www.fairchildsemi.com

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FSTU3253 Summary of contents

Page 1

... FSTU3253 Dual 4:1 Multiplexer/Demultiplexer Bus Switch with 2V Undershoot Protection General Description The Fairchild Switch FSTU3253 is a dual 4:1 high-speed CMOS TTL-compatible multiplexer/demultiplexer switch. The low On Resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. When OE is LOW, S ...

Page 2

Logic Diagram Pin Descriptions Pin Name Description Bus Switch Enables Select Inputs www.fairchildsemi.com Connection Diagram Truth Table S ...

Page 3

Absolute Maximum Ratings Supply Voltage ( Switch Voltage ( Input Voltage (V ) (Note Input Diode Current ( Output (I ) Sink Current OUT DC ...

Page 4

AC Electrical Characteristics Symbol Parameter Propagation Delay Bus to Bus (Note 6) PHL PLH Propagation Delay, Select to Bus Output Enable Time, Select to Bus B PZH PZL Output Enable Time ...

Page 5

AC Loading and Waveforms Note: Input driven by 50 source terminated in 50 Note: C includes load and stray capacitance L Note: Input PRR 1.0 MHz, t 500 ns W FIGURE 2. AC Test Circuit FIGURE 3. AC Waveforms 5 ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 16-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide www.fairchildsemi.com Package Number M16A Package Number MQA16 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Technology Description The Fairchild Switch family derives from and embodies Fairchild’s proven switch technology used for several years in its 74LVX3L384 ...

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