FAIRCHILD 74ACTQ245QSC

74ACQ245, 74ACTQ245
Quiet Series™ Octal Bidirectional Transceiver with
3-STATE Inputs/Outputs
Features
General Description
■ ICC and IOZ reduced by 50%
■ Guaranteed simultaneous switching noise level and
The ACQ/ACTQ245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for
bus-oriented applications. Current sinking capability is
24mA at both the A and B ports. The Transmit/Receive
(T/R) input determines the direction of data flow through
the bidirectional transceiver. Transmit (active-HIGH)
enables data from A Ports to B Ports; Receive (activeLOW) enables data from B Ports to A Ports. The Output
Enable input, when HIGH, disables both A and B ports
by placing them in a HIGH Z condition.
dynamic threshold performance
■ Guaranteed pin-to-pin skew AC performance
■ Improved latch-up immunity
■ 3-STATE outputs drive bus lines or buffer memory
address registers
■ Outputs source/sink 24mA
■ Faster prop delays than the standard ACT245
The ACQ/ACTQ utilizes Fairchild Quiet Series™
technology to guarantee quiet output switching and
improve dynamic threshold performance. FACT Quiet
Series™ features GTO™ output control and undershoot
corrector in addition to a split ground bus for superior
performance.
Ordering Information
Order Number
Package
Number
Package Description
74ACQ245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300"
Wide
74ACQ245SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACTQ245SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300"
Wide
74ACTQ245SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACTQ245QSC
MQA20
20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150"
Wide
74ACTQ245MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm
Wide
74ACTQ245MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,
4.4mm Wide
Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering number.
All packages are lead free per JEDEC: J-STD-020B standard.
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
January 2008
Logic Symbol
IEEE/IEC
Pin Description
Pin Names
OE
Description
Output Enable Input
T/R
Transmit/Receive Input
A0–A7
Side A 3-STATE Inputs or 3-STATE
Outputs
B0–B7
Side B 3-STATE Inputs or 3-STATE
Outputs
Truth Table
Inputs
OE
T/R
Outputs
L
L
Bus B Data to Bus A
L
H
Bus A Data to Bus B
H
X
HIGH-Z State
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
2
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Connection Diagram
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
VCC
IIK
Parameter
Rating
Supply Voltage
–0.5V to +7.0V
DC Input Diode Current
VI = –0.5V
–20mA
VI = VCC + 0.5V
+20mA
VI
DC Input Voltage
IOK
DC Output Diode Current
–0.5V to VCC + 0.5V
VO = –0.5V
–20mA
VO = VCC + 0.5V
+20mA
VO
DC Output Voltage
–0.5V to VCC + 0.5V
IO
DC Output Source or Sink Current
±50mA
ICC or IGND DC VCC or Ground Current per Output Pin
TSTG
±50mA
Storage Temperature
–65°C to +150°C
DC Latch-Up Source or Sink Current
TJ
±300mA
Junction Temperature
140°C
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol
VCC
Parameter
Rating
Supply Voltage
ACQ
2.0V to 6.0V
ACTQ
4.5V to 5.5V
VI
Input Voltage
0V to VCC
VO
Output Voltage
0V to VCC
TA
Operating Temperature
∆V / ∆t
–40°C to +85°C
125mV/ns
Minimum Input Edge Rate, ACQ Devices:
VIN from 30% to 70% of VCC, VCC @ 3.0V, 4.5V, 5.5V
∆V / ∆t
125mV/ns
Minimum Input Edge Rate, ACTQ Devices:
VIN from 0.8V to 2.0V, VCC @ 4.5V, 5.5V
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
3
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Absolute Maximum Ratings
Symbol
VIH
Parameter
Minimum HIGH Level
Input Voltage
VCC (V)
3.0
4.5
Conditions
VOUT = 0.1V or
VCC – 0.1V
5.5
VIL
Maximum LOW Level
Input Voltage
3.0
4.5
VOUT = 0.1V or
VCC – 0.1V
5.5
VOH
VOL
Minimum HIGH Level
Output Voltage
Maximum LOW Level
Output Voltage
3.0
IOUT = –50µA
TA = +25°C TA = –40°C to +85°C
Typ.
Guaranteed Limits
Units
1.5
2.1
2.1
2.25
3.15
3.15
2.75
3.85
3.85
1.5
0.9
0.9
2.25
1.35
1.35
2.75
1.65
1.65
2.99
2.9
2.9
4.5
4.49
4.4
4.4
5.5
5.49
5.4
5.4
3.0
VIN = VIL or VIH,
IOH = –12mA
2.56
2.46
4.5
VIN = VIL or VIH,
IOH = –24mA
3.86
3.76
5.5
VIN = VIL or VIH,
IOH = –24mA(1)
4.86
4.76
3.0
IOUT = 50µA
0.002
0.1
0.1
4.5
0.001
0.1
0.1
5.5
0.001
0.1
0.1
3.0
VIN = VIL or VIH,
IOL = 12mA
0.36
0.44
4.5
VIN = VIL or VIH,
IOL = 24mA
0.36
0.44
5.5
VIN = VIL or VIH,
IOL = 24mA(1)
0.36
0.44
±0.1
±1.0
V
V
V
V
IIN(3)
Maximum Input
Leakage Current
5.5
VI = VCC, GND
IOLD
Minimum Dynamic
Output Current(2)
5.5
VOLD = 1.65V Max.
75
mA
5.5
VOHD = 3.85V Min.
–75
mA
ICC(3)
Maximum Quiescent
Supply Current
5.5
VIN = VCC or GND
4.0
40.0
µA
IOZT
Maximum I/O
Leakage Current
5.5
VI (OE) = VIL, VIH;
VI = VCC, GND;
VO = VCC, GND
±0.3
±3.0
µA
VOLP
Quiet Output
Maximum Dynamic VOL
5.0
Figures 1 & 2(4)
1.1
1.5
V
VOLV
Quiet Output Minimum
Dynamic VOL
5.0
Figures 1 & 2(4)
–0.6
–1.2
V
VIHD
Minimum HIGH Level
Dynamic Input Voltage
5.0
(5)
3.1
3.5
V
VILD
Maximum LOW Level
Dynamic Input Voltage
5.0
5)
1.9
1.5
V
IOHD
µA
Notes:
1. All outputs loaded; thresholds on input associated with output under test.
2. Maximum test duration 2.0ms, one output loaded at a time.
3. IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
4. Max number of outputs defined as (n). Data Inputs are driven 0V to 5V; one output @ GND.
5. Max number of Data Inputs (n) switching. (n–1) Inputs switching 0V to 5V (ACQ). Input-under-test switching:
5V to threshold (VILD), 0V to threshold (VIHD), f = 1 MHz.
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
4
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
DC Electrical Characteristics for ACQ
TA = +25°C TA = –40°C to +85°C
Symbol
VIH
VIL
VOH
Parameter
VCC (V)
Conditions
Typ.
Guaranteed Limits
VOUT = 0.1V or
VCC – 0.1V
1.5
2.0
2.0
1.5
2.0
2.0
VOUT = 0.1V or
VCC – 0.1V
1.5
0.8
0.8
5.5
1.5
0.8
0.8
4.5
IOUT = –50µA
4.49
4.4
4.4
Minimum HIGH Level
Input Voltage
4.5
Maximum LOW Level
Input Voltage
4.5
Minimum HIGH Level
Output Voltage
5.5
5.5
4.5
5.49
VIN = VIL or VIH,
5.4
5.4
3.86
3.76
4.86
4.76
0.1
0.1
Units
V
V
V
IOH = –24mA
5.5
VIN = VIL or VIH,
IOH = –24mA(6)
VOL
Maximum LOW Level
Output Voltage
4.5
IOUT = 50µA
5.5
4.5
0.001
0.001
VIN = VIL or VIH,
0.1
0.1
0.36
0.44
0.36
0.44
V
IOL = 24mA
5.5
VIN = VIL or VIH,
IOL = 24mA(6)
Maximum Input Leakage
Current
5.5
VI = VCC, GND
±0.1
±1.0
µA
IOZT
Maximum 3-STATE
Leakage Current
5.5
VI = VIL, VIH,
VO = VCC, GND
±0.3
±3.0
µA
ICCT
Maximum ICC/Input
5.5
VI = VCC – 2.1V
1.5
mA
IOLD
Minimum Dynamic
5.5
VOLD = 1.65V Max.
75
mA
–75
mA
40.0
µA
IIN
0.6
5.5
VOHD = 3.85V Min.
Maximum Quiescent
Supply Current
5.5
VIN = VCC or GND
VOLP
Quiet Output Maximum
Dynamic VOL
5.0
Figures 1 & 2(8)
1.1
1.5
V
VOLV
Quiet Output Minimum
Dynamic VOL
5.0
Figures 1 & 2(8)
–0.6
–1.2
V
VIHD
Minimum HIGH Level
Dynamic Input Voltage
5.0
(9)
1.9
2.2
V
VILD
Maximum LOW Level
Dynamic Input Voltage
5.0
(9)
1.2
0.8
V
IOHD
ICC
Output
Current(7)
4.0
Notes:
6. All outputs loaded; thresholds on input associated with output under test.
7. Maximum test duration 2.0ms, one output loaded at a time.
8. Max number of outputs defined as (n). n–1 Data Inputs are driven 0V to 3V; one output @ GND.
9. Max number of Data Inputs (n) switching. (n–1) Inputs switching 0V to 3V (ACTQ). Input-under-test switching:
3V to threshold (VILD), 0V to threshold (VIHD) f = 1 MHz.
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
5
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
DC Electrical Characteristics for ACTQ
TA = +25°C,
CL = 5 pF
Symbol
tPHL, tPLH
tPZL, tPZH
tPHZ, tPLZ
Parameter
TA = –40°C to +85°C,
CL = 50pF
VCC (V)(10)
Min.
Typ.
Max.
Min.
Max.
Units
3.3
2.0
7.5
10.0
2.0
10.5
ns
5.0
1.5
5.0
6.5
1.5
7.0
Propagation Delay,
Data to Output
Output Enable Time
Output Disable Time
tOSHL, tOSLH Output to Output Skew,
Data to Output(11)
3.3
3.0
8.5
13.0
3.0
13.5
5.0
2.0
6.0
8.5
2.0
9.0
3.3
1.0
8.5
14.5
1.0
15.0
5.0
1.0
7.5
9.5
1.0
10.0
3.3
1.0
1.5
1.5
5.0
0.5
1.0
1.0
ns
ns
ns
Notes:
10. Voltage range 5.0 is 5.0V ± 0.5V. Voltage range 3.3 is 3.3V ± 0.3V.
11. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate
outputs of the same device. The specification applies to any outputs switching in the same direction, either
HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). Parameter guaranteed by design.
AC Electrical Characteristics for ACTQ
TA = +25°C,
CL = 50pF
TA = –40°C to +85°C,
CL = 50pF
VCC (V)(12)
Min.
Typ.
Max.
Min.
Max.
Units
Propagation Delay,
Data to Output
5.0
1.5
5.5
7.0
1.5
7.5
ns
tPZL, tPZH
Output Enable Time
5.0
2.0
7.0
9.0
2.0
9.5
ns
tPHZ, tPLZ
Output Disable Time
5.0
1.0
8.0
10.0
1.0
10.5
ns
0.5
1.0
1.0
ns
Symbol
Parameter
tPHL, tPLH
tOSHL, tOSLH Output to Output Skew,
Data to Output(13)
5.0
Notes:
12. Voltage range 5.0 is 5.0V ± 0.5V
13. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate
outputs of the same device. The specification applies to any outputs switching in the same direction, either
HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). Parameter guaranteed by design.
Capacitance
Symbol
Parameter
Conditions
Typ.
Units
CIN
Input Capacitance
VCC = OPEN
4.5
pF
CI/O
Input/Output Capacitance
VCC = 5.0V
15
pF
CPD
Power Dissipation Capacitance
VCC = 5.0V
80.0
pF
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
6
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
AC Electrical Characteristics for ACQ
VOLP/VOLV and VOHP/VOHV:
The setup of a noise characteristics measurement is critical to the accuracy and repeatability of the tests. The
following is a brief description of the setup used to measure the noise characteristics of FACT.
■ Determine the quiet output pin that demonstrates the
greatest noise levels. The worst case pin will usually
be the furthest from the ground pin. Monitor the output
voltages using a 50Ω coaxial cable plugged into a
standard SMB type connector on the test fixture. Do
not use an active FET probe.
■ Measure VOLP and VOLV on the quiet output during
the worst case transition for active and enable.
Measure VOHP and VOHV on the quiet output during
the worst case active and enable transition.
■ Verify that the GND reference recorded on the
oscilloscope has not drifted to ensure the accuracy
and repeatability of the measurements.
Equipment:
Hewlett Packard Model 8180A Word Generator
PC-163A Test Fixture
Tektronics Model 7854 Oscilloscope
Procedure:
1. Verify Test Fixture Loading: Standard Load 50pF,
500Ω.
2. Deskew the HFS generator so that no two channels
have greater than 150 ps skew between them. This
requires that the oscilloscope be deskewed first. It is
important to deskew the HFS generator channels
before testing. This will ensure that the outputs switch
simultaneously.
VILD and VIHD:
■ Monitor one of the switching outputs using a 50Ω
coaxial cable plugged into a standard SMB type
connector on the test fixture. Do not use an active
FET probe.
■ First increase the input LOW voltage level, VIL, until
the output begins to oscillate or steps out a min of 2ns.
Oscillation is defined as noise on the output LOW
level that exceeds VIL limits, or on output HIGH levels
that exceed VIH limits. The input LOW voltage level at
which oscillation occurs is defined as VILD.
■ Next decrease the input HIGH voltage level, VIH, until
the output begins to oscillate or steps out a min of 2ns.
Oscillation is defined as noise on the output LOW
level that exceeds VIL limits, or on output HIGH levels
that exceed VIH limits. The input HIGH voltage level at
which oscillation occurs is defined as VIHD.
■ Verify that the GND reference recorded on the
oscilloscope has not drifted to ensure the accuracy
and repeatability of the measurements.
3. Terminate all inputs and outputs to ensure proper
loading of the outputs and that the input levels are at
the correct voltage.
4. Set the HFS generator to toggle all but one output at
a frequency of 1 MHz. Greater frequencies will
increase DUT heating and effect the results of the
measurement.
5. Set the HFS generator input levels at 0V LOW and 3V
HIGH for ACT devices and 0V LOW and 5V HIGH for
AC devices. Verify levels with an oscilloscope.
Notes:
14. VOHV and VOLP are measured with respect to ground
reference.
15. Input pulses have the following characteristics:
f = 1MHz, tr = 3ns, tf = 3ns, skew < 150ps.
Figure 1. Quiet Output Noise Voltage Waveforms
Figure 2. Simultaneous Switching Test Circuit
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
7
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
FACT Noise Characteristics
13.00
12.60
A
11.43
20
11
B
9.50
10.65 7.60
10.00 7.40
2.25
1
10
0.51
0.35
PIN ONE
INDICATOR
0.25
M
0.65
1.27
1.27
C B A
LAND PATTERN RECOMMENDATION
2.65 MAX
SEE DETAIL A
0.33
0.20
C
0.75
0.25
X 45°
SEATING PLANE
NOTES: UNLESS OTHERWISE SPECIFIED
(R0.10)
GAGE PLANE
(R0.10)
0.10 C
0.30
0.10
0.25
8°
0°
A) THIS PACKAGE CONFORMS TO JEDEC
MS-013, VARIATION AC, ISSUE E
B) ALL DIMENSIONS ARE IN MILLIMETERS.
C) DIMENSIONS DO NOT INCLUDE MOLD
FLASH OR BURRS.
D) CONFORMS TO ASME Y14.5M-1994
1.27
0.40
SEATING PLANE
E) LANDPATTERN STANDARD: SOIC127P1030X265-20L
(1.40)
DETAIL A
F) DRAWING FILENAME: MKT-M20BREV3
SCALE: 2:1
Figure 3. 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
8
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Physical Dimensions
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Physical Dimensions (Continued)
Figure 4. 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
9
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Physical Dimensions (Continued)
Figure 5. 20-Lead Quarter Size Outline Package (QSOP), JEDEC MO-137, 0.150" Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
10
Figure 6. 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
11
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Physical Dimensions (Continued)
Figure 7. 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner
without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or
obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions,
specifically the warranty therein, which covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
12
74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
Physical Dimensions (Continued)
ACEx®
Build it Now™
CorePLUS™
CROSSVOLT™
CTL™
Current Transfer Logic™
EcoSPARK®
EZSWITCH™ *
™
PDP-SPM™
SyncFET™
®
Power220®
®
Power247
The Power Franchise®
POWEREDGE®
Power-SPM™
PowerTrench®
TinyBoost™
Programmable Active Droop™
TinyBuck™
®
QFET
TinyLogic®
QS™
TINYOPTO™
QT Optoelectronics™
TinyPower™
®
Quiet Series™
TinyPWM™
RapidConfigure™
TinyWire™
Fairchild®
SMART START™
Fairchild Semiconductor®
µSerDes™
®
SPM
FACT Quiet Series™
UHC®
STEALTH™
FACT®
Ultra FRFET™
SuperFET™
FAST®
UniFET™
SuperSOT™-3
FastvCore™
VCX™
®
®*
SuperSOT™-6
FlashWriter
SuperSOT™-8
* EZSWITCH™ and FlashWriter® are trademarks of System General Corporation, used under license by Fairchild Semiconductor.
FPS™
FRFET®
Global Power ResourceSM
Green FPS™
Green FPS™ e-Series™
GTO™
i-Lo™
IntelliMAX™
ISOPLANAR™
MegaBuck™
MICROCOUPLER™
MicroFET™
MicroPak™
MillerDrive™
Motion-SPM™
OPTOLOGIC®
OPTOPLANAR®
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS
HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE
APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS
PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S
WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR
SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body or
(b) support or sustain life, and (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in a significant injury of the user.
2. A critical component in any component of a life support,
device, or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or In Design
This datasheet contains the design specifications for product
development. Specifications may change in any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data; supplementary data will be
published at a later date. Fairchild Semiconductor reserves the right to
make changes at any time without notice to improve design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild Semiconductor
reserves the right to make changes at any time without notice to improve
the design.
Obsolete
Not In Production
This datasheet contains specifications on a product that has been
discontinued by Fairchild Semiconductor. The datasheet is printed for
reference information only.
Rev. I32
©1989 Fairchild Semiconductor Corporation
74ACQ245, 74ACTQ245 Rev. 1.5.1
www.fairchildsemi.com
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74ACQ245, 74ACTQ245 — Quiet Series™ Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs
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subsidiaries, and is not intended to be an exhaustive list of all such trademarks.