74FST3245 ON, 74FST3245 Datasheet

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74FST3245

Manufacturer Part Number
74FST3245
Description
8-Bit Bus Switch
Manufacturer
ON
Datasheet

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Part Number:
74FST3245Q
Manufacturer:
IDT
Quantity:
20 000
74FST3245
8−Bit Bus Switch
switch. The device is CMOS TTL compatible when operating between
4 and 5.5 Volts. The device exhibits extremely low R
nearly zero propagation delay. The device adds no noise or ground
bounce to the system.
when OE is low. If OE is high, the switch is high Z.
Features
*For additional information on our Pb−Free strategy and soldering details, please
© Semiconductor Components Industries, LLC, 2006
June, 2006 − Rev. 2
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
The ON Semiconductor 74FST3245 is an 8−bit, high performance
The device consists of an 8−bit switch. Port A is connected to Port B
R
Less Than 0.25 ns−Max Delay Through Switch
Nearly Zero Standby Current
No Circuit Bounce
Control Inputs are TTL/CMOS Compatible
Pin−For−Pin Compatible with QS3245, FST3245, CBT3245
All Popular Packages: QSOP−20, TSSOP−20, SOIC−20
All Devices in Package TSSOP are Inherently Pb−Free*
ON
t 4 W Typical
OE
A
A
TRUTH TABLE
0
7
Input OE
Figure 1. 20−Lead Pinout
Figure 2. Logic Diagram
GND
19
2
9
NC
A
A
A
A
A
A
A
A
H
L
0
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
Disconnect
20
19
18
17
16
15
14
13
12
11
Function
Connect
V
OE
B
B
B
B
B
B
B
B
CC
0
1
2
3
4
5
6
7
18
11
B
B
0
7
ON
and adds
1
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
PIN NAMES
OE
1A, 2A
1B, 2B
20
1
20
20
, OE
A
L, WL
Y
W, WW
DW SUFFIX
CASE 751D
CASE 948E
CASE 492A
QS SUFFIX
TSSOP−20
DT SUFFIX
QSOP−20
SOIC−20
2
ORDERING INFORMATION
Pin
1
1
1
http://onsemi.com
=
=
=
=
Publication Order Number:
Assembly Location
Wafer Lot
Year
Work Week
20
1
20
Bus Switch Enables
1
20
1
Description
DIAGRAMS
MARKING
AWLYYWW
AWLYWW
FST3245
FST3245
Bus A
Bus B
74FST3245/D
ALYW
3245
FST

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74FST3245 Summary of contents

Page 1

... Bus Switch The ON Semiconductor 74FST3245 is an 8−bit, high performance switch. The device is CMOS TTL compatible when operating between 4 and 5.5 Volts. The device exhibits extremely low R nearly zero propagation delay. The device adds no noise or ground bounce to the system. The device consists of an 8−bit switch. Port A is connected to Port B when OE is low ...

Page 2

... Input Voltage I V Output Voltage O T Operating Free−Air Temperature A Dt/DV Input Transition Rise or Fall Rate 5. Unused control inputs may not be left open. All control inputs must be tied to a high or low logic input voltage level. Parameter V t GND GND O SOIC TSSOP ...

Page 3

... MHz, Capacitance is characterized but not tested. A ORDERING INFORMATION Device Order Number 74FST3245DW 74FST3245DWR2 74FST3245DT 74FST3245DTR2 74FST3245QS 74FST3245QSR †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. Conditions I = −18mA ...

Page 4

... Input driven source terminated includes load and stray capacitance Figure 3. AC Test Circuit 1.5 V SWITCH INPUT PLH 1.5 V OUTPUT Figure 4. Propagation Delays ENABLE INPUT 1 PZL OUTPUT 1 PZH 1.5 V OUTPUT Figure 5. Enable/Disable Delays http://onsemi ...

Page 5

... NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT MAXIMUM MATERIAL CONDITION ...

Page 6

... 0.052 0.062 1.32 1.58 Q 0.035 DIA 0.89 DIA R 0.035 0.045 0.89 1.14 U 0.035 0.045 0.89 1. Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative 74FST3245 ...

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