FST32253 Fairchild Semiconductor, FST32253 Datasheet

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FST32253

Manufacturer Part Number
FST32253
Description
Dual 4:1 Multiplexer-Demultiplexer Bus Switch with 25 ? Series Resistors in Outputs
Manufacturer
Fairchild Semiconductor
Datasheet
1.FST32253.pdf (5 pages)

Available stocks

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Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
FST32253
Manufacturer:
SiS
Quantity:
15
© 2001 Fairchild Semiconductor Corporation
FST32253M
FST32253QSC
FST32253MTC
FST32253
Dual 4:1 Multiplexer/Demultiplexer Bus Switch
with 25
General Description
The Fairchild Switch FST32253 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 FST32253 has an equivalent 25
reduce signal-reflection noise, eliminating the need for
external terminating resistors.
Ordering Code:
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.
Logic Diagram
Pin Descriptions
Order Number
B
TTL-compatible
1
Pin Name
OE
, B
S
1
0
2
A
, OE
, S
, B
1
3
, B
2
Package Number
Series Resistor in Outputs
4
0
and S
MQA16
MTC16
M16A
multiplexer/demultiplexer
1
connect the A Port to the
Bus Switch Enables
Select Inputs
Description
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
series resistor to
Bus A
Bus B
DS500472
bus
Features
Connection Diagram
Truth Table
25 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
S
X
X
H
H
L
L
1
CC
Package Description
S
X
X
H
H
L
L
0
OE
H
X
L
L
L
L
1
OE
H
X
L
L
L
L
2
August 2001
Revised September 2001
Disconnect 1A
Disconnect 2A
www.fairchildsemi.com
Function
A
A
A
A
B
B
B
B
1
2
3
4

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FST32253 Summary of contents

Page 1

... FST32253 Dual 4:1 Multiplexer/Demultiplexer Bus Switch with 25 Series Resistor in Outputs General Description The Fairchild Switch FST32253 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. ...

Page 2

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

Page 3

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

Page 4

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 4 ...

Page 5

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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