FAIRCHILD 74ACT244_08

74AC244, 74ACT244
Octal Buffer/Line Driver with 3-STATE Outputs
Features
General Description
■ ICC and IOZ reduced by 50%
■ 3-STATE outputs drive bus lines or buffer memory
The AC/ACT244 is an octal buffer and line driver
designed to be employed as a memory address driver,
clock driver and bus-oriented transmitter/receiver which
provides improved PC board density.
address registers
■ Outputs source/sink 24mA
■ ACT244 has TTL-compatible inputs
Ordering Information
Package
Number
Package Description
74AC244SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74AC244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Order Number
74AC244MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
74AC244PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
74ACT244SC
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide
74ACT244SJ
M20D
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74ACT244MSA
MSA20
20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide
74ACT244MTC
MTC20
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
74ACT244PC
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" 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.
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
January 2008
Logic Symbol
IEEE/IEC
Pin Description
Pin
Names
Description
OE1, OE2 3-STATE Output Enable Inputs
I0–I7
Inputs
O0–O7
Outputs
Truth Tables
Inputs
Outputs
OE1
In
(Pins 12, 14, 16, 18)
L
L
L
L
H
H
H
X
Z
Inputs
Outputs
OE2
In
(Pins 3, 5, 7, 9)
L
L
L
L
H
H
H
X
Z
X = Immaterial
Z = High Impedance
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
2
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
Connection Diagram
Symbol
VCC
IIK
Parameter
Rating
−0.5V to +7.0V
Supply Voltage
DC Input Diode Current
VI = −0.5V
−20mA
VI = VCC + 0.5
+20mA
VI
DC Input Voltage
−0.5V to VCC + 0.5V
IOK
DC Output Diode Current
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
±50mA
ICC or IGND DC VCC or Ground Current per Output Pin
TSTG
Storage Temperature
TJ
−65°C to +150°C
140°C
Junction Temperature
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
Supply Voltage
AC
2.0V to 6.0V
ACT
4.5V to 5.5V
VI
Input Voltage
VO
Output Voltage
TA
Operating Temperature
∆V / ∆t
Rating
0V to VCC
0V to VCC
−40°C to +85°C
Minimum Input Edge Rate, AC Devices:
125mV/ns
VIN from 30% to 70% of VCC, VCC @ 3.3V, 4.5V, 5.5V
∆V / ∆t
125mV/ns
Minimum Input Edge Rate, ACT Devices:
VIN from 0.8V to 2.0V, VCC @ 4.5V, 5.5V
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
3
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
Absolute Maximum Ratings
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
Parameter
VCC (V)
VIH
Minimum HIGH Level
Input Voltage
3.0
Maximum LOW Level
Input Voltage
3.0
Minimum HIGH Level
Output Voltage
3.0
4.5
Conditions
VOUT = 0.1V or
VCC − 0.1V
5.5
VIL
4.5
TA = −40°C
to +85°C
Typ.
Guaranteed Limits
Units
1.5
2.1
2.1
2.1
2.25
3.15
3.15
3.15
2.75
3.85
3.85
3.85
1.5
0.9
0.9
0.9
2.25
1.35
1.35
1.35
2.75
1.65
1.65
1.65
IOUT = −50µA
2.99
2.9
2.9
2.9
4.49
4.4
4.4
4.4
4.5
5.5
3.0
TA = −55°C to
+125°C
VOUT = 0.1V or
VCC − 0.1V
5.5
VOH
TA = +25°C
5.49
VIN = VIL or VIH,
5.4
5.4
5.4
2.56
2.4
2.46
3.86
3.7
3.76
4.86
4.7
4.76
V
V
V
IOH = 12mA
4.5
VIN = VIL or VIH,
IOH = 24mA
5.5
VIN = VIL or VIH,
IOH = 24mA
VOL
Maximum LOW Level
Output Voltage
3.0
(1)
IOUT = 50µA
0.002
0.1
0.1
0.1
4.5
0.001
0.1
0.1
0.1
5.5
0.001
3.0
VIN = VIL or VIH,
0.1
0.1
0.1
0.36
0.50
0.44
0.36
0.50
0.44
0.36
0.50
0.44
V
IOL = 12mA
4.5
VIN = VIL or VIH,
IOL = 24mA
5.5
VIN = VIL or VIH,
IOL = 24mA(1)
Maximum Input
Leakage Current
5.5
VI = VCC, GND
±0.1
±1.0
±1.0
µA
IOZ
Maximum 3-STATE
Leakage Current
5.5
VI (OE) = VIL, VIH;
VI = VCC, VGND;
VO = VCC, GND
±0.25
±5.0
±2.5
µA
IOLD
Minimum Dynamic
Output Current(3)
5.5
VOLD = 1.65V Max.
50
75
mA
5.5
VOHD = 3.85V Min.
−50
−75
mA
Maximum Quiescent
Supply Current
5.5
VIN = VCC or GND
80.0
40.0
µA
IIN(2)
IOHD
ICC(2)
4.0
Notes:
1. All outputs loaded; thresholds on input associated with output under test.
2. IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.
3. Maximum test duration 2.0ms, one output loaded at a time.
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
4
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
DC Electrical Characteristics for AC
TA = +25°C
Symbol
Parameter
VCC (V)
VIH
Minimum HIGH Level
Input Voltage
5.5
Maximum LOW Level
Input Voltage
VIL
VOH
Minimum HIGH Level
Output Voltage
Conditions
Typ.
TA = −55°C
to +125°C
TA =−40°C
to +85°C
Guaranteed Limits
Units
VOUT = 0.1V or
VCC − 0.1V
1.5
2.0
2.0
2.0
1.5
2.0
2.0
2.0
VOUT = 0.1V or
VCC − 0.1V
1.5
0.8
0.8
0.8
5.5
1.5
0.8
0.8
0.8
4.5
IOUT = −50µA
4.49
4.4
4.4
4.4
4.5
4.5
5.5
4.5
5.49
5.4
5.4
5.4
3.86
3.70
3.76
4.86
4.70
4.76
0.001
0.1
0.1
0.1
0.001
0.1
0.1
0.1
0.36
0.50
0.44
0.36
0.50
0.44
VIN = VIL or VIH,
V
V
V
IOH = 24mA
5.5
VIN = VIL or VIH,
IOH = 24mA
VOL
Maximum LOW Level
Output Voltage
4.5
(4)
IOUT = 50µA
5.5
4.5
VIN = VIL or VIH,
V
IOL = 24mA
5.5
VIN = VIL or VIH,
IOL = 24mA(4)
IIN
Maximum Input
Leakage Current
5.5
VI = VCC, GND
±0.1
±1.0
±1.0
µA
IOZ
Maximum 3-STATE
Leakage Current
5.5
VI = VIL, VIH;
VO = VCC, GND
±0.25
±5.0
±2.5
µA
ICCT
Maximum ICC/Input
5.5
VI = VCC − 2.1V
1.6
1.5
mA
IOLD
Minimum Dynamic
Output Current(5)
5.5
VOLD = 1.65V Max.
50
75
mA
5.5
VOHD = 3.85V Min.
−50
−75
mA
Maximum Quiescent
Supply Current
5.5
VIN = VCC or GND
80.0
40.0
µA
IOHD
ICC
0.6
4.0
Notes:
4. All outputs loaded; thresholds on input associated with output under test.
5. Maximum test duration 2.0ms, one output loaded at a time.
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
5
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
DC Electrical Characteristics for ACT
TA = +25°C,
CL = 50pF
tPHL
tPZH
tPZL
tPHZ
tPLZ
TA = −40°C
to +85°C,
CL = 50pF
VCC (V)(6)
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
Units
Propagation Delay,
Data to Output
3.3
2.0
6.5
9.0
1.0
12.5
1.5
10.0
ns
5.0
1.5
5.0
7.0
1.0
9.5
1.0
7.5
Propagation Delay,
Data to Output
3.3
2.0
6.5
9.0
1.0
12.0
2.0
10.0
5.0
1.5
5.0
7.0
1.0
9.0
1.0
7.5
Output Enable Time
3.3
2.0
6.0
10.5
1.0
11.5
1.5
11.0
5.0
1.5
5.0
7.0
1.0
9.0
1.5
8.0
Symbol
tPLH
TA = −55°C
to +125°C,
CL = 50pF
Parameter
Output Enable Time
Output Disable Time
Output Disable Time
3.3
2.5
7.5
10.0
1.0
13.0
2.0
11.0
5.0
1.5
5.5
8.0
1.0
10.5
1.5
8.5
3.3
3.0
7.0
10.0
1.0
12.5
1.5
10.5
5.0
2.5
6.5
9.0
1.0
10.5
1.0
9.5
3.3
2.5
7.5
10.5
1.0
13.0
2.5
11.5
5.0
2.0
6.5
9.0
1.0
11.0
2.0
9.5
ns
ns
ns
ns
ns
Note:
6. Voltage range 3.3 is 3.3V ± 0.3V. Voltage range 5.0 is 5.0V ± 0.5V.
AC Electrical Characteristics for ACT
TA = −55°C
to +125°C,
CL = 50pF
TA = +25°C,
CL = 50pF
Symbol
Parameter
TA = −40°C
to +85°C,
CL = 50pF
VCC (V)(7)
Min.
Typ.
Max.
Min.
Max.
Min.
Max. Units
tPLH
Propagation Delay,
Data to Output
5.0
2.0
6.5
9.0
1.0
10.0
1.5
10.0
ns
tPHL
Propagation Delay,
Data to Output
5.0
2.0
7.0
9.0
1.0
10.0
1.5
10.0
ns
tPZH
Output Enable Time
5.0
1.5
6.0
8.5
1.0
9.5
1.0
9.5
ns
tPZL
Output Enable Time
5.0
2.0
7.0
9.5
1.0
11.0
1.5
10.5
ns
tPHZ
Output Disable Time
5.0
2.0
7.0
9.5
1.0
11.0
1.5
10.5
ns
tPLZ
Output Disable Time
5.0
2.5
7.5
10.0
1.0
11.5
2.0
10.5
ns
Note:
7. Voltage range 5.0 is 5.0V ± 0.5V.
Capacitance
Symbol
Parameter
Conditions
Typ
Units
CIN
Input Capacitance
VCC = OPEN
4.5
pF
CPD
Power Dissipation Capacitance
VCC = 5.0V
45.0
pF
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
6
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
AC Electrical Characteristics for AC
13.00
12.60
A
11.43
20
11
B
9.50
10.65 7.60
10.00 7.40
2.25
1
PIN ONE
INDICATOR
10
0.51
0.35
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 1. 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/
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
7
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
Physical Dimensions
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
Physical Dimensions (Continued)
Figure 2. 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/
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
8
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
Physical Dimensions (Continued)
Figure 3. 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/
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
9
26.92
24.89
7.11
6.09
PIN #1
(0.97)
1.78
1.14
2.54
0.36
0.56
.001[.025]
3.43
3.17
5.33 MAX
7° TYP
7.87
7° TYP
3.55
3.17
0.38 MIN
7.62
10.92 MAX
0.20
0.35
C
NOTES:
Figure 4. 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 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/
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
10
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
Physical Dimensions (Continued)
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
Physical Dimensions (Continued)
Figure 5. 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/
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
11
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* EZSWITCH™ and FlashWriter® are trademarks of System General Corporation, used under license by Fairchild Semiconductor.
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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
©1988 Fairchild Semiconductor Corporation
74AC244, 74ACT244 Rev. 1.4.0
www.fairchildsemi.com
12
74AC244, 74ACT244 — Octal Buffer/Line Driver with 3-STATE Outputs
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subsidiaries, and is not intended to be an exhaustive list of all such trademarks.