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74FST3253DT Datasheet

  • 74FST3253DT

  • Dual 4:1 Multiplexer/ Demultiplexer Bus Switch

  • 8頁

  • ONSEMI

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74FST3253
Dual 4:1 Multiplexer/
Demultiplexer Bus Switch
The ON Semiconductor 74FST3253 is a dual 4:1, 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
16
1
SOIC鈭?6
D SUFFIX
CASE 751B
FST3253
AWLYWW
1
16
16
1
TSSOP鈭?6
DT SUFFIX
CASE 948F
FST
3253
ALYW
1
16
S3253
ALYW
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
R
ON
t
4
W
Typical
Less Than 0.25 ns鈭扢ax Delay Through Switch
Nearly Zero Standby Current
No Circuit Bounce
Control Inputs are TTL/CMOS Compatible
Pin鈭扚or鈭扨in Compatible With QS3253, FST3253, CBT3253
All Popular Packages: QSOP鈭?6, TSSOP鈭?6, SOIC鈭?6
All Devices in Package TSSOP are Inherently Pb鈭扚ree*
OE
1
S1
1B
4
1B
3
1B
2
1B
1
1A
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
OE
2
S
0
2B
4
2B
3
2B
2
2B
1
2A
16
1
QSOP鈭?6
QS SUFFIX
CASE 492
Figure 1. 16鈭扡ead
Pinout
S
1
X
X
L
L
H
H
S
0
OE
1
OE
2
X
X
L
H
L
H
H
X
L
L
L
L
X
H
L
L
L
L
Function
Disconnect 1A
Disconnect 2A
A = B
1
A = B
2
A = B
3
A = B
4
1
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
Figure 2. Truth Table
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
*For additional information on our Pb鈭扚ree strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
漏
Semiconductor Components Industries, LLC, 2005
1
January, 2005 鈭?Rev. 2
Publication Order Number:
74FST3253/D

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