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74FST3244QS

Description
8−Bit Bus Switch
Categorylogic    logic   
File Size197KB,7 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
Environmental Compliance
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74FST3244QS Overview

8−Bit Bus Switch

74FST3244QS Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
MakerON Semiconductor
Parts packaging codeQSOP
package instructionQSOP-20
Contacts20
Reach Compliance Codeunknown
seriesCBT/FST/QS/5C/B
JESD-30 codeR-PDSO-G20
JESD-609 codee3
length8.65 mm
Logic integrated circuit typeBUS DRIVER
Humidity sensitivity level1
Number of digits4
Number of functions2
Number of ports2
Number of terminals20
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output characteristics3-STATE
Output polarityTRUE
Package body materialPLASTIC/EPOXY
encapsulated codeSSOP
Encapsulate equivalent codeSSOP20,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply5 V
propagation delay (tpd)0.25 ns
Certification statusNot Qualified
Maximum seat height1.73 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)4 V
Nominal supply voltage (Vsup)4.5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin (Sn)
Terminal formGULL WING
Terminal pitch0.635 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.9 mm
Base Number Matches1
74FST3244
8−Bit 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
ON
and adds
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. Port A is connected to Port B when OE is
low. If OE is high, the switch is high Z.
Features
http://onsemi.com
MARKING
DIAGRAMS
20
1
SOIC−20
DW SUFFIX
CASE 751D
1
20
1
TSSOP−20
DT SUFFIX
CASE 948E
20
FST
3244
ALYW
1
FST3244
AWLYYWW
20
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
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*
OE
1
1A
0
2B
3
1A
1
2B
2
1A
2
2B
1
1A
3
2B
0
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
OE
2
1B
0
2A
3
1B
1
2A
2
1B
2
2A
1
1B
3
2A
0
20
1
QSOP−20
QS SUFFIX
CASE 492A
A
L, WL
Y
W, WW
=
=
=
=
20
FST3244
AWLYWW
1
Figure 1. 20−Lead Pinout
Assembly Location
Wafer Lot
Year
Work Week
PIN NAMES
TRUTH TABLE
Inputs
OE
1
L
L
H
H
OE
2
L
H
L
H
Inputs/Outputs
1A, 1B
1A = 1B
1A = 1B
Z
Z
2A, 2B
2A = 2B
Z
2A = 2B
Z
OE
1
, OE
2
1A, 2A
1B, 2B
Pin
Description
Bus Switch Enables
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−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
1
Publication Order Number:
74FST3244/D
©
Semiconductor Components Industries, LLC, 2006
June, 2006
Rev. 2

74FST3244QS Related Products

74FST3244QS 74FST3244QSR 74FST3244_06 74FST3244DWR2 74FST3244DW 74FST3244DTR2 74FST3244DT 74FST3244
Description 8−Bit Bus Switch 8−Bit Bus Switch 8−Bit Bus Switch 8−Bit Bus Switch 8−Bit Bus Switch 8−Bit Bus Switch 8−Bit Bus Switch 8−Bit Bus Switch
Is it Rohs certified? conform to conform to - incompatible incompatible conform to conform to -
Maker ON Semiconductor ON Semiconductor - ON Semiconductor ON Semiconductor ON Semiconductor ON Semiconductor -
Parts packaging code QSOP QSOP - SOIC SOIC TSSOP TSSOP -
package instruction QSOP-20 SSOP, SSOP20,.25 - SOP, SOP20,.4 SOIC-20 TSSOP, TSSOP20,.25 TSSOP, TSSOP20,.25 -
Contacts 20 20 - 20 20 20 20 -
Reach Compliance Code unknown unknown - not_compliant not_compliant unknown unknown -
series CBT/FST/QS/5C/B CBT/FST/QS/5C/B - CBT/FST/QS/5C/B CBT/FST/QS/5C/B CBT/FST/QS/5C/B CBT/FST/QS/5C/B -
JESD-30 code R-PDSO-G20 R-PDSO-G20 - R-PDSO-G20 R-PDSO-G20 R-PDSO-G20 R-PDSO-G20 -
JESD-609 code e3 e3 - e0 e0 e4 e4 -
length 8.65 mm 8.65 mm - 12.8 mm 12.8 mm 6.5 mm 6.5 mm -
Logic integrated circuit type BUS DRIVER BUS DRIVER - BUS DRIVER BUS DRIVER BUS DRIVER BUS DRIVER -
Humidity sensitivity level 1 1 - 1 1 1 1 -
Number of digits 4 4 - 4 4 4 4 -
Number of functions 2 2 - 2 2 2 2 -
Number of ports 2 2 - 2 2 2 2 -
Number of terminals 20 20 - 20 20 20 20 -
Maximum operating temperature 85 °C 85 °C - 85 °C 85 °C 85 °C 85 °C -
Minimum operating temperature -40 °C -40 °C - -40 °C -40 °C -40 °C -40 °C -
Output characteristics 3-STATE 3-STATE - 3-STATE 3-STATE 3-STATE 3-STATE -
Output polarity TRUE TRUE - TRUE TRUE TRUE TRUE -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY -
encapsulated code SSOP SSOP - SOP SOP TSSOP TSSOP -
Encapsulate equivalent code SSOP20,.25 SSOP20,.25 - SOP20,.4 SOP20,.4 TSSOP20,.25 TSSOP20,.25 -
Package shape RECTANGULAR RECTANGULAR - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR -
Package form SMALL OUTLINE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH - SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH -
power supply 5 V 5 V - 5 V 5 V 5 V 5 V -
propagation delay (tpd) 0.25 ns 0.25 ns - 0.25 ns 0.25 ns 0.25 ns 0.25 ns -
Certification status Not Qualified Not Qualified - Not Qualified Not Qualified Not Qualified Not Qualified -
Maximum seat height 1.73 mm 1.73 mm - 2.65 mm 2.65 mm 1.2 mm 1.2 mm -
Maximum supply voltage (Vsup) 5.5 V 5.5 V - 5.5 V 5.5 V 5.5 V 5.5 V -
Minimum supply voltage (Vsup) 4 V 4 V - 4 V 4 V 4 V 4 V -
Nominal supply voltage (Vsup) 4.5 V 4.5 V - 4.5 V 4.5 V 4.5 V 4.5 V -
surface mount YES YES - YES YES YES YES -
technology CMOS CMOS - CMOS CMOS CMOS CMOS -
Temperature level INDUSTRIAL INDUSTRIAL - INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL -
Terminal surface Tin (Sn) Tin (Sn) - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Nickel/Palladium/Gold (Ni/Pd/Au) Nickel/Palladium/Gold (Ni/Pd/Au) -
Terminal form GULL WING GULL WING - GULL WING GULL WING GULL WING GULL WING -
Terminal pitch 0.635 mm 0.635 mm - 1.27 mm 1.27 mm 0.65 mm 0.65 mm -
Terminal location DUAL DUAL - DUAL DUAL DUAL DUAL -
width 3.9 mm 3.9 mm - 7.5 mm 7.5 mm 4.4 mm 4.4 mm -
Base Number Matches 1 1 - 1 1 1 - -
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