74FST3251QSR ON Semiconductor, 74FST3251QSR Datasheet

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74FST3251QSR

Manufacturer Part Number
74FST3251QSR
Description
IC MUX/DEMUX 8:1 BUS SW 16QSOP
Manufacturer
ON Semiconductor
Series
74FSTr
Type
Multiplexer/Demultiplexerr
Datasheet

Specifications of 74FST3251QSR

Circuit
1 x 8:1
Independent Circuits
1
Voltage Supply Source
Single Supply
Voltage - Supply
4 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Current - Output High, Low
-
Other names
74FST3251QSROS
74FST3251
8:1 Multiplexer/
Demultiplexer Bus Switch
multiplexer/demultiplexer bus switch. The device is CMOS TTL
compatible when operating between 4 and 5.5 Volts. The device
exhibits extremely low R
The device adds no noise or ground bounce to the system.
Features
NOTE: H = HIGH Voltage Level, L = LOW Voltage Level, X = Don’t Care
*For additional information on our Pb−Free strategy and soldering details, please
© Semiconductor Components Industries, LLC, 2006
June, 2006 − Rev. 3
TRUTH TABLE
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
The ON Semiconductor 74FST3251 is an 8:1, high performance
R
Less Than 0.25 ns−Max Delay Through Switch
Nearly Zero Standby Current
No Circuit Bounce
Control Inputs are TTL/CMOS Compatible
All Popular Packages: QSOP−16, TSSOP−16, SOIC−16
All Devices in Package TSSOP are Inherently Pb−Free*
OE
ON
H
L
L
L
L
L
L
L
L
t 4 W Typical
S2
H
H
H
H
X
L
L
L
L
GND
OE
Figure 1. QSOP/SSOP/TSSOP
NC
Inputs
B4
B3
B2
B1
A
ON
S1
H
H
H
H
X
L
L
L
L
1
2
3
4
5
6
7
8
and adds nearly zero propagation delay.
TOP VIEW
S0
H
H
H
H
X
L
L
L
L
16
15
14
13
12
10
11
9
V
B5
B6
B7
B8
S0
S1
S2
CC
A Port = B1 Port
A Port = B2 Port
A Port = B3 Port
A Port = B4 Port
A Port = B5 Port
A Port = B6 Port
A Port = B7 Port
A Port = B8 Port
Disconnect
Function
1
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
PIN NAMES
OE
S
A
B
0
1
16
, S
, B
16
16
1
CASE 751B
CASE 948F
DT SUFFIX
TSSOP−16
, OE
D SUFFIX
QS SUFFIX
A
L, WL
Y
W, WW
SOIC−16
1
2
CASE 492
QSOP−16
, B
2
ORDERING INFORMATION
3
1
Pin
, B
1
1
4
http://onsemi.com
=
=
=
=
16
1
Publication Order Number:
Assembly Location
Wafer Lot
Year
Work Week
16
16
1
1
Bus Switch Enables
DIAGRAMS
Select Inputs
Description
MARKING
AWLYWW
FST3251
S3251
ALYW
ALYW
Bus A
Bus B
3251
FST
74FST3251/D

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74FST3251QSR Summary of contents

Page 1

... Multiplexer/ Demultiplexer Bus Switch The ON Semiconductor 74FST3251 is an 8:1, high performance multiplexer/demultiplexer bus switch. The device is CMOS TTL compatible when operating between 4 and 5.5 Volts. The device exhibits extremely low R and adds nearly zero propagation delay. ON The device adds no noise or ground bounce to the system. ...

Page 2

... OE ORDERING INFORMATION Device Order Number 74FST3251D 74FST3251DR2 74FST3251DT 74FST3251DTR2 74FST3251QS 74FST3251QSR †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *This package is inherently Pb−Free Figure 2. Logic Diagram Package SOIC− ...

Page 3

MAXIMUM RATINGS Symbol V DC Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Sink Current Supply Current ...

Page 4

DC ELECTRICAL CHARACTERISTICS Symbol Parameter V Clamp Diode Resistance IK V High−Level Input Voltage IH V Low−Level Input Voltage IL I Input Leakage Current I I OFF−STATE Leakage Current OZ R Switch On Resistance (Note Quiescent Supply ...

Page 5

AC Loading and Waveforms FROM OUTPUT UNDER TEST NOTES: 1. Input driven source terminated includes load and stray capacitance Figure 3. AC Test Circuit t = 2.5 ...

Page 6

G K −T− SEATING PLANE 0.25 (0.010 16X REF 0.10 (0.004) 0.15 (0.006 L PIN 1 IDENT. 1 0.15 (0.006 ...

Page 7

... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...

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