74fst3244 ON Semiconductor, 74fst3244 Datasheet

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74fst3244

Manufacturer Part Number
74fst3244
Description
8-bit Bus Switch
Manufacturer
ON Semiconductor
Datasheet

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Part Number:
74fst3244Q
Manufacturer:
IDT
Quantity:
20 000
74FST3244
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.
Output/Enable (OE) pins. Port A is connected to Port B 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 74FST3244 is an 8−bit, high performance
The device consists of two 4−bit switches with separate
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 QS3244, FST3244, CBT3244
All Popular Packages: QSOP−20, TSSOP−20, SOIC−20
All Devices in Package TSSOP are Inherently Pb−Free*
ON
t 4 W Typical
TRUTH TABLE
OE
L
H
H
L
1
Inputs
Figure 1. 20−Lead Pinout
GND
OE
OE
1A
2B
1A
2B
1A
2B
1A
2B
H
H
L
L
1
0
3
1
2
2
1
3
0
2
1
2
3
4
5
6
7
8
9
10
1A = 1B
1A = 1B
1A, 1B
Z
Z
Inputs/Outputs
20
19
18
17
16
15
14
13
12
11
V
OE
1B
2A
1B
2A
1B
2A
1B
2A
2A = 2B
2A = 2B
CC
2A, 2B
0
3
1
2
2
1
3
0
2
Z
Z
ON
and adds
1
See detailed ordering and shipping information in the package
dimensions section on page 2 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
DT SUFFIX
QS SUFFIX
TSSOP−20
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
FST3244
FST3244
Bus A
Bus B
74FST3244/D
ALYW
3244
FST

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74fst3244 Summary of contents

Page 1

... Bus Switch The ON Semiconductor 74FST3244 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 two 4−bit switches with separate Output/Enable (OE) pins ...

Page 2

... ORDERING INFORMATION Device Order Number 74FST3244DW 74FST3244DWR2 74FST3244DT 74FST3244DTR2 74FST3244QS 74FST3244QSR †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 ...

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

20X T 0. 18X A1 K 20X REF 0.10 (0.004) 0.15 (0.006 L PIN 1 IDENT 1 0.15 (0.006) ...

Page 7

... 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 74FST3244 ...

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