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FSTU6800WM

Description
10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection
Categorylogic    logic   
File Size180KB,5 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Environmental Compliance
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FSTU6800WM Overview

10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection

FSTU6800WM Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerFairchild
Parts packaging codeSOIC
package instructionSOP, SOP24,.4
Contacts24
Reach Compliance Codecompli
Other featuresTTL COMPATIBLE BUS SWITCH
seriesCBT/FST/QS/5C/B
JESD-30 codeR-PDSO-G24
length15.4 mm
Logic integrated circuit typeBUS DRIVER
Number of digits10
Number of functions1
Number of ports2
Number of terminals24
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output characteristics3-STATE
Output polarityTRUE
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP24,.4
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
propagation delay (tpd)0.25 ns
Certification statusNot Qualified
Maximum seat height2.65 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4 V
Nominal supply voltage (Vsup)4.5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.5 mm
FSTU6800 10-Bit Bus Switch with Precharged Outputs
December 1998
Revised October 2006
FSTU6800
10-Bit Bus Switch with Precharged Outputs
and
2V Undershoot Protection
General Description
The Fairchild Switch FSTU6800 provides 10-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. Both the A Ports and the B
Ports have “undershoot hardened” circuit protection to sup-
port an extended input range to 2.0V below ground. Fair-
child’s integrated Undershoot Hardened Circuit (UHC®)
senses undershoot at the I/Os, and responds by preventing
voltage differentials from developing and turning on the
switch. The device also precharges the B Port to a select-
able bias voltage (BiasV) to minimize live insertion noise.
The device is organized as a 10-bit switch with a bus
enable (OE) signal. When OE is LOW, the switch is ON
and Port A is connected to Port B. When OE is HIGH, the
switch is OPEN and the B Port is precharged to BiasV
through an equivalent 10-k
resistor.
Features
s
4
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
FSTU6800WM
FSTU6800QSC
FSTU6800MTC
Package Number
M24B
MQA24
MTC24
Package Description
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
24-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150 Wide
24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Diagram
Connection Diagram
Pin Descriptions
Pin Name
OE
A
B
BiasV
Description
Bus Switch Enable
Bus A
Bus B
Bus B Voltage Bias
Truth Table
OE
L
H
B
0
–B
9
A
0
–A
9
BiasV
Function
Connect
Precharge
UHC® is a registered trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation
DS500194
www.fairchildsemi.com

FSTU6800WM Related Products

FSTU6800WM FSTU6800 FSTU6800_06 FSTU6800QSC FSTU6800MTC
Description 10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection 10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection 10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection 10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection 10-Bit Bus Switch with Precharged Outputs and −2V Undershoot Protection
Is it Rohs certified? conform to - - incompatible conform to
Maker Fairchild - - Fairchild Fairchild
Parts packaging code SOIC - - SSOP TSSOP
package instruction SOP, SOP24,.4 - - 0.150 INCH, MO-137, QSOP-24 TSSOP, TSSOP24,.25
Contacts 24 - - 24 24
Reach Compliance Code compli - - unknow unknow
Other features TTL COMPATIBLE BUS SWITCH - - TTL COMPATIBLE BUS SWITCH TTL COMPATIBLE BUS SWITCH
series CBT/FST/QS/5C/B - - CBT/FST/QS/5C/B CBT/FST/QS/5C/B
JESD-30 code R-PDSO-G24 - - R-PDSO-G24 R-PDSO-G24
length 15.4 mm - - 8.65 mm 7.8 mm
Logic integrated circuit type BUS DRIVER - - BUS DRIVER BUS DRIVER
Number of digits 10 - - 10 10
Number of functions 1 - - 1 1
Number of ports 2 - - 2 2
Number of terminals 24 - - 24 24
Maximum operating temperature 85 °C - - 85 °C 85 °C
Minimum operating temperature -40 °C - - -40 °C -40 °C
Output characteristics 3-STATE - - 3-STATE 3-STATE
Output polarity TRUE - - TRUE TRUE
Package body material PLASTIC/EPOXY - - PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP - - SSOP TSSOP
Encapsulate equivalent code SOP24,.4 - - SSOP24,.24 TSSOP24,.25
Package shape RECTANGULAR - - RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE - - SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius) NOT SPECIFIED - - NOT SPECIFIED 260
power supply 5 V - - 5 V 5 V
propagation delay (tpd) 0.25 ns - - 0.25 ns 0.25 ns
Certification status Not Qualified - - Not Qualified Not Qualified
Maximum seat height 2.65 mm - - 1.75 mm 1.2 mm
Maximum supply voltage (Vsup) 5.5 V - - 5.5 V 5.5 V
Minimum supply voltage (Vsup) 4 V - - 4 V 4 V
Nominal supply voltage (Vsup) 4.5 V - - 4.5 V 4.5 V
surface mount YES - - YES YES
technology CMOS - - CMOS CMOS
Temperature level INDUSTRIAL - - INDUSTRIAL INDUSTRIAL
Terminal form GULL WING - - GULL WING GULL WING
Terminal pitch 1.27 mm - - 0.635 mm 0.65 mm
Terminal location DUAL - - DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED - - NOT SPECIFIED NOT SPECIFIED
width 7.5 mm - - 3.9116 mm 4.4 mm
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