ON MC74AC244 Octal buffer/line driver with 3−state output Datasheet

MC74AC244, MC74ACT244
Octal Buffer/Line Driver
with 3−State Outputs
The MC74AC244/74ACT244 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.
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Features
• 3−State Outputs Drive Bus Lines or Buffer Memory Address
•
•
•
Registers
Outputs Source/Sink 24 mA
′ACT244 Has TTL Compatible Inputs
Pb−Free Packages are Available*
VCC
OE2
20
19
18
17
16
15
14
PDIP−20
N SUFFIX
CASE 738
1
13
12
SOIC−20W
DW SUFFIX
CASE 751D
11
1
1
2
3
4
5
6
OE1
7
8
9
TSSOP−20
DT SUFFIX
CASE 948E
10
GND
1
Pinout: 20−Lead Packages Conductors (Top View)
SOEIAJ−20
M SUFFIX
CASE 967
TRUTH TABLE
Inputs
Outputs
OE1
D
(Pins 12, 14, 16, 18)
L
L
H
L
H
X
L
H
Z
NOTE:
1
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
DEVICE MARKING INFORMATION
TRUTH TABLE
Inputs
Outputs
OE2
D
(Pins 3, 5, 7, 9)
L
L
H
L
H
X
L
H
Z
NOTE:
See general marking information in the device marking
section on page 6 of this data sheet.
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
*For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
September, 2006 − Rev. 7
1
Publication Order Number:
MC74AC244/D
MC74AC244, MC74ACT244
MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
−0.5 to +7.0
V
DC Input Voltage (Referenced to GND)
−0.5 to VCC +0.5
V
DC Output Voltage (Referenced to GND)
−0.5 to VCC +0.5
V
DC Input Current, per Pin
±20
mA
IOUT
DC Output Sink/Source Current, per Pin
±50
mA
ICC
DC VCC or GND Current per Output Pin
±50
mA
Tstg
Storage Temperature
−65 to +150
°C
VCC
DC Supply Voltage (Referenced to GND)
VIN
VOUT
IIN
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
VIN, VOUT
tr, tf
Parameter
Supply Voltage
Min
Typ
Max
′AC
2.0
5.0
6.0
′ACT
4.5
5.0
5.5
0
−
VCC
VCC @ 3.0 V
−
150
−
VCC @ 4.5 V
−
40
−
VCC @ 5.5 V
−
25
−
VCC @ 4.5 V
−
10
−
VCC @ 5.5 V
−
8.0
−
−
−
140
°C
−40
25
85
°C
DC Input Voltage, Output Voltage (Ref. to GND)
Input Rise and Fall Time (Note 1)
′AC Devices except Schmitt Inputs
Unit
V
V
ns/V
tr, tf
Input Rise and Fall Time (Note 2)
′ACT Devices except Schmitt Inputs
TJ
Junction Temperature (PDIP)
TA
Operating Ambient Temperature Range
IOH
Output Current − High
−
−
−24
mA
IOL
Output Current − Low
−
−
24
mA
1. VIN from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times.
2. VIN from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.
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2
ns/V
MC74AC244, MC74ACT244
DC CHARACTERISTICS
Symbol
VCC
(V)
Parameter
74AC
74AC
TA = +25°C
TA =
−40°C to +85°C
Typ
Unit
Conditions
Guaranteed Limits
VIH
Minimum High Level Input Voltage
3.0
4.5
5.5
1.5
2.25
2.75
2.1
3.15
3.85
2.1
3.15
3.85
V
VOUT = 0.1 V
or VCC − 0.1 V
VIL
Maximum Low Level Input Voltage
3.0
4.5
5.5
1.5
2.25
2.75
0.9
1.35
1.65
0.9
1.35
1.65
V
VOUT = 0.1 V
or VCC − 0.1 V
VOH
Minimum High Level Output Voltage
3.0
4.5
5.5
2.99
4.49
5.49
2.9
4.4
5.4
2.9
4.4
5.4
V
IOUT = −50 mA
3.0
4.5
5.5
−
−
−
2.56
3.86
4.86
2.46
3.76
4.76
V
*VIN = VIL or VIH
−12 mA
IOH
−24 mA
−24 mA
3.0
4.5
5.5
0.002
0.001
0.001
0.1
0.1
0.1
0.1
0.1
0.1
V
IOUT = 50 mA
3.0
4.5
5.5
−
−
−
0.36
0.36
0.36
0.44
0.44
0.44
V
*VIN = VIL or VIH
12 mA
IOL
24 mA
24 mA
VOL
Maximum Low Level Output Voltage
IIN
Maximum Input Leakage Current
5.5
−
±0.1
±1.0
mA
VI = VCC, GND
IOZ
Maximum 3−State Current
5.5
−
±0.5
±5.0
mA
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
IOLD
†Minimum Dynamic Output Current
5.5
−
−
75
mA
VOLD = 1.65 V Max
5.5
−
−
−75
mA
VOHD = 3.85 V Min
5.5
−
8.0
80
mA
VIN = VCC or GND
IOHD
ICC
Maximum Quiescent Supply Current
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
NOTE: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC.
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
Symbol
Parameter
VCC*
(V)
74AC
74AC
TA = +25°C
CL = 50 pF
TA = −40°C to +85°C
CL = 50 pF
Min
Typ
Max
Min
Max
Unit
Figure
No.
tPLH
Propagation Delay
Data to Output
3.3
5.0
2.0
1.5
6.5
5.0
9.0
7.0
1.5
1.0
10.0
7.5
ns
3−5
tPHL
Propagation Delay
Data to Output
3.3
5.0
2.0
1.5
6.5
5.0
9.0
7.0
2.0
1.0
10.0
7.5
ns
3−5
tPZH
Output Enable Time
3.3
5.0
2.0
1.5
6.0
5.0
10.5
7.0
1.5
1.5
11.0
8.0
ns
3−7
tPZL
Output Enable Time
3.3
5.0
2.5
1.5
7.5
5.5
10.0
8.0
2.0
1.5
11.0
8.5
ns
3−8
tPHZ
Output Disable Time
3.3
5.0
3.0
2.5
7.0
6.5
10.0
9.0
1.5
1.0
10.5
9.5
ns
3−7
tPLZ
Output Disable Time
3.3
5.0
2.5
2.0
7.5
6.5
10.5
9.0
2.5
2.0
11.5
9.5
ns
3−8
*Voltage Range 3.3 V is 3.3 V ±0.3 V.
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
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3
MC74AC244, MC74ACT244
DC CHARACTERISTICS
Symbol
VCC
(V)
Parameter
74ACT
74ACT
TA = +25°C
TA =
−40°C to +85°C
Typ
Unit
Conditions
Guaranteed Limits
VIH
Minimum High Level Input Voltage
4.5
5.5
1.5
1.5
2.0
2.0
2.0
2.0
V
VOUT = 0.1 V
or VCC − 0.1 V
VIL
Maximum Low Level Input Voltage
4.5
5.5
1.5
1.5
0.8
0.8
0.8
0.8
V
VOUT = 0.1 V
or VCC − 0.1 V
VOH
Minimum High Level Output Voltage
4.5
5.5
4.49
5.49
4.4
5.4
4.4
5.4
V
IOUT = −50 mA
V
4.5
5.5
−
−
3.86
4.86
3.76
4.76
*VIN = VIL or VIH
−24 mA
IOH
−24 mA
4.5
5.5
0.001
0.001
0.1
0.1
0.1
0.1
V
IOUT = 50 mA
V
4.5
5.5
−
−
0.36
0.36
0.44
0.44
*VIN = VIL or VIH
24 mA
24 mA
IOL
Maximum Input Leakage Current
5.5
−
±0.1
±1.0
mA
VI = VCC, GND
DICCT
Additional Max. ICC/Input
5.5
0.6
−
1.5
mA
VI = VCC − 2.1 V
IOZ
Maximum 3−State Current
5.5
−
±0.5
±5.0
mA
VI (OE) = VIL, VIH
VI = VCC, GND
VO = VCC, GND
IOLD
†Minimum Dynamic Output Current
5.5
−
−
75
mA
VOLD = 1.65 V Max
5.5
−
−
−75
mA
VOHD = 3.85 V Min
5.5
−
8.0
80
mA
VIN = VCC or GND
VOL
IIN
Maximum Low Level Output Voltage
IOHD
ICC
Maximum Quiescent Supply Current
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
AC CHARACTERISTICS (For Figures and Waveforms − See AND8277/D at www.onsemi.com)
Parameter
Symbol
VCC*
(V)
74ACT
74ACT
TA = +25°C
CL = 50 pF
TA = −40°C to +85°C
CL = 50 pF
Unit
Figure
No.
Min
Typ
Max
Min
Max
tPLH
Propagation Delay
Data to Output
5.0
2.0
6.5
9.0
1.5
10.0
ns
3−5
tPHL
Propagation Delay
Data to Output
5.0
2.0
7.0
9.0
1.5
10.0
ns
3−5
tPZH
Output Enable Time
5.0
1.5
6.0
8.5
1.0
9.5
ns
3−7
tPZL
Output Enable Time
5.0
2.0
7.0
9.5
1.5
10.5
ns
3−8
tPHZ
Output Disable Time
5.0
2.0
7.0
9.5
1.5
10.5
ns
3−7
tPLZ
Output Disable Time
5.0
2.5
7.5
10.0
2.0
10.5
ns
3−8
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
CAPACITANCE
Symbol
Parameter
Value Typ
Unit
Test Conditions
CIN
Input Capacitance
4.5
pF
VCC = 5.0 V
CPD
Power Dissipation Capacitance
45
pF
VCC = 5.0 V
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4
MC74AC244, MC74ACT244
ORDERING INFORMATION
Device
Package
MC74AC244N
PDIP−20
MC74AC244NG
PDIP−20
(Pb−Free)
MC74ACT244N
PDIP−20
MC74ACT244NG
PDIP−20
(Pb−Free)
MC74AC244DW
SOIC−20
MC74AC244DWG
SOIC−20
(Pb−Free)
MC74AC244DWR2
SOIC−20
MC74AC244DWR2G
SOIC−20
(Pb−Free)
MC74ACT244DW
SOIC−20
MC74ACT244DWG
SOIC−20
(Pb−Free)
MC74ACT244DWR2
SOIC−20
MC74ACT244DWR2G
SOIC−20
(Pb−Free)
MC74AC244DTR2
TSSOP−20*
MC74AC244DTR2G
TSSOP−20*
MC74ACT244DTR2
TSSOP−20*
MC74ACT244DTR2G
TSSOP−20*
MC74AC244MEL
SOEIAJ−20
MC74AC244MELG
SOEIAJ−20
(Pb−Free)
MC74ACT244M
SOEIAJ−20
MC74ACT244MG
SOEIAJ−20
(Pb−Free)
MC74ACT244MEL
SOEIAJ−20
MC74ACT244MELG
SOEIAJ−20
(Pb−Free)
Shipping†
18 Units / Rail
38 Units / Rail
1000 / Tape & Reel
38 Units / Rail
1000 / Tape & Reel
2500 / Tape & Reel
2000 / Tape & Reel
40 Units / Rail
2000 / Tape & Reel
†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.
*These packages are inherently Pb−Free.
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5
MC74AC244, MC74ACT244
MARKING DIAGRAMS
PDIP−20
SOIC−20W
TSSOP−20
20
20
20
20
AC
244
ALYWG
G
AC244
AWLYYWWG
MC74AC244N
AWLYYWWG
SOEIAJ−20
1
74AC244
AWLYWWG
1
1
1
20
20
20
20
ACT
244
ALYWG
G
ACT244
AWLYYWWG
MC74ACT244N
AWLYYWWG
1
1
1
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W = Work Week
G or G
= Pb−Free Package
(Note: Microdot may be in either location)
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6
74ACT244
AWLYWWG
1
MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
PDIP−20
N SUFFIX
PLASTIC DIP PACKAGE
CASE 738−03
ISSUE E
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEAD WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD
FLASH.
−A−
20
11
1
10
B
L
C
−T−
K
SEATING
PLANE
M
N
E
G
F
J
D
20 PL
0.25 (0.010)
20 PL
0.25 (0.010)
M
T A
M
T B
M
DIM
A
B
C
D
E
F
G
J
K
L
M
N
INCHES
MIN
MAX
1.010
1.070
0.240
0.260
0.150
0.180
0.015
0.022
0.050 BSC
0.050
0.070
0.100 BSC
0.008
0.015
0.110
0.140
0.300 BSC
0_
15 _
0.020
0.040
MILLIMETERS
MIN
MAX
25.66
27.17
6.10
6.60
3.81
4.57
0.39
0.55
1.27 BSC
1.27
1.77
2.54 BSC
0.21
0.38
2.80
3.55
7.62 BSC
0_
15_
0.51
1.01
M
SOIC−20W
DW SUFFIX
CASE 751D−05
ISSUE G
20
11
X 45 _
h
1
10
20X
B
B
0.25
M
T A
S
B
S
A
L
H
M
E
0.25
10X
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.
q
A
B
M
D
18X
e
A1
SEATING
PLANE
C
T
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7
DIM
A
A1
B
C
D
E
e
H
h
L
q
MILLIMETERS
MIN
MAX
2.35
2.65
0.10
0.25
0.35
0.49
0.23
0.32
12.65
12.95
7.40
7.60
1.27 BSC
10.05
10.55
0.25
0.75
0.50
0.90
0_
7_
MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
TSSOP−20
DT SUFFIX
CASE 948E−02
ISSUE B
20X
0.15 (0.006) T U
2X
K REF
0.10 (0.004)
S
L/2
20
M
T U
S
V
S
K
K1
ÍÍÍÍ
ÍÍÍÍ
ÍÍÍÍ
11
J J1
B
L
−U−
PIN 1
IDENT
SECTION N−N
1
10
0.25 (0.010)
N
0.15 (0.006) T U
S
M
A
−V−
NOTES:
1. DIMENSIONING AND TOLERANCING
PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION:
MILLIMETER.
3. DIMENSION A DOES NOT INCLUDE
MOLD FLASH, PROTRUSIONS OR GATE
BURRS. MOLD FLASH OR GATE BURRS
SHALL NOT EXCEED 0.15 (0.006) PER
SIDE.
4. DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION
SHALL NOT EXCEED 0.25 (0.010) PER
SIDE.
5. DIMENSION K DOES NOT INCLUDE
DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08
(0.003) TOTAL IN EXCESS OF THE K
DIMENSION AT MAXIMUM MATERIAL
CONDITION.
6. TERMINAL NUMBERS ARE SHOWN
FOR REFERENCE ONLY.
7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE −W−.
N
F
DETAIL E
−W−
C
D
G
H
DETAIL E
0.100 (0.004)
−T− SEATING
PLANE
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8
DIM
A
B
C
D
F
G
H
J
J1
K
K1
L
M
MILLIMETERS
MIN
MAX
6.40
6.60
4.30
4.50
−−−
1.20
0.05
0.15
0.50
0.75
0.65 BSC
0.27
0.37
0.09
0.20
0.09
0.16
0.19
0.30
0.19
0.25
6.40 BSC
0_
8_
INCHES
MIN
MAX
0.252
0.260
0.169
0.177
−−−
0.047
0.002
0.006
0.020
0.030
0.026 BSC
0.011
0.015
0.004
0.008
0.004
0.006
0.007
0.012
0.007
0.010
0.252 BSC
0_
8_
MC74AC244, MC74ACT244
PACKAGE DIMENSIONS
SOEIAJ−20
M SUFFIX
CASE 967−01
ISSUE A
20
LE
11
Q1
E HE
1
M_
L
10
DETAIL P
Z
D
VIEW P
e
A
c
DIM
A
A1
b
c
D
E
e
HE
L
LE
M
Q1
Z
A1
b
0.13 (0.005)
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSIONS D AND E DO NOT INCLUDE
MOLD FLASH OR PROTRUSIONS AND ARE
MEASURED AT THE PARTING LINE. MOLD FLASH
OR PROTRUSIONS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
4. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
5. THE LEAD WIDTH DIMENSION (b) DOES NOT
INCLUDE DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)
TOTAL IN EXCESS OF THE LEAD WIDTH
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT. MINIMUM SPACE
BETWEEN PROTRUSIONS AND ADJACENT LEAD
TO BE 0.46 ( 0.018).
M
0.10 (0.004)
MILLIMETERS
MIN
MAX
−−−
2.05
0.05
0.20
0.35
0.50
0.15
0.25
12.35
12.80
5.10
5.45
1.27 BSC
7.40
8.20
0.50
0.85
1.10
1.50
10 _
0_
0.70
0.90
−−−
0.81
INCHES
MIN
MAX
−−−
0.081
0.002
0.008
0.014
0.020
0.006
0.010
0.486
0.504
0.201
0.215
0.050 BSC
0.291
0.323
0.020
0.033
0.043
0.059
10 _
0_
0.028
0.035
−−−
0.032
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operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
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9
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For additional information, please contact your local
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MC74AC244/D
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