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74FST3251

Description
8:1 Multiplexer/ Demultiplexer Bus Switch
File Size198KB,7 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Download Datasheet Compare View All

74FST3251 Overview

8:1 Multiplexer/ Demultiplexer Bus Switch

74FST3251
8:1 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
ON
and adds nearly zero propagation delay.
The device adds no noise or ground bounce to the system.
Features
http://onsemi.com
MARKING
DIAGRAMS
16
1
SOIC−16
D SUFFIX
CASE 751B
16
FST3251
AWLYWW
1
16
16
1
TSSOP−16
DT SUFFIX
CASE 948F
FST
3251
ALYW
1
16
S3251
ALYW
1
R
ON
t
4
W
Typical
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*
B4
B3
B2
B1
A
NC
OE
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
B5
B6
B7
B8
S0
S1
S2
16
1
QSOP−16
QS SUFFIX
CASE 492
Figure 1. QSOP/SSOP/TSSOP
TOP VIEW
TRUTH TABLE
Inputs
OE
L
L
L
L
L
L
L
L
H
S2
L
L
L
L
H
H
H
H
X
S1
L
L
H
H
L
L
H
H
X
S0
L
H
L
H
L
H
L
H
X
Function
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
A
L, WL
Y
W, WW
=
=
=
=
Assembly Location
Wafer Lot
Year
Work Week
PIN NAMES
Pin
OE
1
, OE
2
S
0
, S
1
A
B
1
, B
2
, B
3
, B
4
Description
Bus Switch Enables
Select Inputs
Bus A
Bus B
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
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
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2006
June, 2006
Rev. 3
1
Publication Order Number:
74FST3251/D

74FST3251 Related Products

74FST3251 74FST3251QSR 74FST3251_06 74FST3251DTR2 74FST3251QS 74FST3251D 74FST3251DR2 74FST3251DT
Description 8:1 Multiplexer/ Demultiplexer Bus Switch 8:1 Multiplexer/ Demultiplexer Bus Switch 8:1 Multiplexer/ Demultiplexer Bus Switch 8:1 Multiplexer/ Demultiplexer Bus Switch 8:1 Multiplexer/ Demultiplexer Bus Switch 8:1 Multiplexer/ Demultiplexer Bus Switch 8:1 Multiplexer/ Demultiplexer Bus Switch 8:1 Multiplexer/ Demultiplexer Bus Switch
Is it Rohs certified? - incompatible - conform to incompatible incompatible incompatible conform to
Maker - ON Semiconductor - ON Semiconductor ON Semiconductor ON Semiconductor ON Semiconductor ON Semiconductor
Parts packaging code - SOIC - TSSOP SOIC SOIC SOIC TSSOP
package instruction - SSOP, SSOP16,.25 - TSSOP, TSSOP16,.25 QSOP-16 SOIC-16 SOP, SOP16,.25 TSSOP, TSSOP16,.25
Contacts - 16 - 16 16 16 16 16
Reach Compliance Code - not_compliant - unknown not_compliant not_compliant not_compliant unknown
Base Number Matches - 1 - 1 1 1 1 1
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