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74FST3257DTR2 Datasheet

  • 74FST3257DTR2

  • Quad 2:1 Multiplexer/ Demultiplexer Bus Switch

  • 8頁

  • ONSEMI

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74FST3257
Quad 2:1 Multiplexer/
Demultiplexer Bus Switch
The ON Semiconductor 74FST3257 is a quad 2:1, 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
FST3257
AWLYWW
1
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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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 QS3257, FST3257, CBT3257
All Popular Packages: QSOP鈭?6, TSSOP鈭?6, SOIC鈭?6
All Devices in Package TSSOP are Inherently Pb鈭扚ree*
16
1
SOIC鈭?6
D SUFFIX
CASE 751B
16
16
1
FST
3257
ALYW
1
16
S3257
ALYW
S
1B
1
1B
2
1A
2B
1
2B
2
2A
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
OE
4B
1
4B
2
4A
3B
1
3B
2
3A
TSSOP鈭?6
DT SUFFIX
CASE 948F
16
1
QSOP鈭?6
QS SUFFIX
CASE 492
Figure 1. 16鈭扡ead Pinout
1
S
X
L
H
OE
H
L
L
Function
Disconnect
A = B
1
A = B
2
A
L, WL
Y
W, WW
=
=
=
=
Assembly Location
Wafer Lot
Year
Work Week
PIN NAMES
Figure 2. Truth Table
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.
*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:
74FST3257/D

74FST3257DTR2 產品屬性

  • 2,500

  • 集成電路 (IC)

  • 邏輯 - 信號開關，多路復用器，解碼器

  • 74FST

  • 多路復用器/多路分解器

  • 4 x 2:1

  • 1

  • -

  • 單電源

  • 4 V ~ 5.5 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 16-TSSOP（0.173"，4.40mm 寬）

  • 16-TSSOP

  • 帶卷 (TR)

  • 74FST3257DTR2OS

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