ON MC74LVX244DT Octal bus buffer with 5v−tolerant input Datasheet

MC74LVX244
Octal Bus Buffer
With 5V−Tolerant Inputs
The MC74LVX244 is an advanced high speed CMOS
non−inverting 3−state octal bus buffer and has two active low output
enables. It is also designed to work with 3−state memory address
drivers, etc. The inputs tolerate voltages up to 7.0 V, allowing the
interface of 5.0 V systems to 3.0 V systems.
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MARKING
DIAGRAMS
Features
•
•
•
•
•
•
•
•
•
High Speed: tPD = 4.7 ns (Typ) at VCC = 3.3 V
Low Power Dissipation: ICC = 4 A (Max) at TA = 25°C
Power Down Protection Provided on Inputs
Balanced Propagation Delays
Low Noise: VOLP = 0.8 V (Max)
Pin and Function Compatible with Other Standard Logic Families
Latchup Performance Exceeds 300 mA
ESD Performance:
Human Body Model > 2000 V;
Machine Model > 200 V
Pb−Free Packages are Available*
20
20
1
SOIC−20
DW SUFFIX
CASE 751D
LVX244
AWLYYWW
1
20
20
1
LVX
244
ALYW
TSSOP−20
DT SUFFIX
CASE 948E
1
20
20
1
SOEIAJ−20
M SUFFIX
CASE 967
1
A
L, WL
Y, YY
W, WW
=
=
=
=
74LVX244
AWLYWW
Assembly Location
Wafer Lot
Year
Work Week
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.
 Semiconductor Components Industries, LLC, 2005
March, 2005 − Rev. 2
1
Publication Order Number:
MC74LVX244/D
MC74LVX244
VCC
2OE
1O0
2D0
1O1
2D1
1O2
2D2
1O3
2D3
20
19
18
17
16
15
14
13
12
11
PIN NAMES
1
2
1OE
1D0
3
4
5
6
7
8
9
10
2O0
1D1
2O1
1D2
2O2
1D3
2O3
GND
Pins
Function
nOE
1Dn, 2Dn
1On, 2On
Output Enable Inputs
Data Inputs
3−State Outputs
Figure 1. 20−Lead Pinout (Top View)
1OE
1D0
1D1
1D2
1D3
1
2OE
2
18
4
16
6
14
8
12
1O0
2D0
1O1
2D1
1O2
2D2
1O3
2D3
19
FUNCTION TABLE
17
3
15
5
13
7
11
9
INPUTS
2O0
2O1
OUTPUTS
1OE, 2OE
1Dn, 2Dn
1On, 2On
L
L
H
L
H
X
L
H
Z
2O2
2O3
Figure 2. Logic Diagram
ORDERING INFORMATION
Package
Shipping†
MC74LVX244DWR2
SOIC−20
1000 Tape & Reel
MC74LVX244DWR2G
SOIC−20
(Pb−Free)
1000 Tape & Reel
MC74LVX244DT
TSSOP−20*
50 Units / Rail
MC74LVX244DTR2
TSSOP−20*
2500 Tape & Reel
MC74LVX244M
SOEIAJ−20
50 Units / Rail
MC74LVX244MEL
SOEIAJ−20
2000 Tape & Reel
Device
†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.
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2
MC74LVX244
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MAXIMUM RATINGS
Symbol
Value
Unit
VCC
DC Supply Voltage
Parameter
–0.5 to +7.0
V
Vin
DC Input Voltage
–0.5 to +7.0
V
Vout
DC Output Voltage
–0.5 to VCC +0.5
V
IIK
Input Diode Current
−20
mA
IOK
Output Diode Current
±20
mA
Iout
DC Output Current, per Pin
±25
mA
ICC
DC Supply Current, VCC and GND Pins
±75
mA
PD
Power Dissipation
180
mW
Tstg
Storage Temperature
–65 to +150
C
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
2.0
3.6
V
VCC
DC Supply Voltage
Vin
DC Input Voltage
0
5.5
V
Vout
DC Output Voltage
0
VCC
V
−40
+85
C
0
100
ns/V
TA
t/V
Operating Temperature, All Package Types
Input Rise and Fall Time
DC ELECTRICAL CHARACTERISTICS
Symbol
Parameter
Test Conditions
TA = 25°C
VCC
V
Min
1.5
2.0
2.4
VIH
High−Level Input Voltage
2.0
3.0
3.6
VIL
Low−Level Input Voltage
2.0
3.0
3.6
VOH
High−Level Output Voltage
(Vin = VIH or VIL)
IOH = −50A
IOH = −50A
IOH = −4mA
2.0
3.0
3.0
VOL
Low−Level Output Voltage
(Vin = VIH or VIL)
IOL = 50A
IOL = 50A
IOL = 4mA
2.0
3.0
3.0
Typ
TA = − 40 to 85°C
Max
Min
1.5
2.0
2.4
0.5
0.8
0.8
1.9
2.9
2.58
Max
2.0
3.0
0.0
0.0
Unit
V
0.5
0.8
0.8
1.9
2.9
2.48
V
V
0.1
0.1
0.36
0.1
0.1
0.44
V
Iin
Input Leakage Current
Vin = 5.5V or GND
3.6
±0.1
±1.0
A
IOZ
Maximum 3−State Leakage Current
Vin = VIL or VIH
Vout = VCC or GND
3.6
±0.2
5
±2.5
A
ICC
Quiescent Supply Current
Vin = VCC or GND
3.6
4.0
40.0
A
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3
MC74LVX244
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AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
TA = 25°C
Symbol
tPLH,
tPHL
tPZL,
tPZH
tPLZ,
tPHZ
tOSHL
tOSLH
Parameter
Propagation Delay
Input to Output
Output Enable Time to
High and Low Level
Output Disable Time From
High and Low Level
Output−to−Output Skew
(Note 1)
Test Conditions
Min
TA = − 40 to 85°C
Typ
Max
Min
Max
Unit
ns
VCC = 2.7V
CL = 15pF
CL = 50pF
6.1
8.6
11.4
14.9
1.0
1.0
13.5
17.0
VCC = 3.3 ± 0.3V
CL = 15pF
CL = 50pF
4.7
7.2
7.1
10.6
1.0
1.0
8.5
12.0
VCC = 2.7V
RL = 1k
CL = 15pF
CL = 50pF
7.1
9.6
13.8
17.3
1.0
1.0
16.5
20.0
VCC = 3.3 ± 0.3V
RL = 1k
CL = 15pF
CL = 50pF
5.5
8.0
8.8
12.3
1.0
1.0
10.5
14.0
VCC = 2.7V
RL = 1k
CL = 50pF
11.6
16.0
1.0
19.0
VCC = 3.3 ± 0.3V
RL = 1k
CL = 50pF
9.7
11.4
1.0
13.0
VCC = 2.7V
VCC = 3.3 ±0.3V
CL = 50pF
CL = 50pF
1.5
1.5
1.5
1.5
ns
ns
ns
1. 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.
CAPACITIVE CHARACTERISTICS
TA = 25°C
Symbol
Min
Parameter
TA = − 40 to 85°C
Typ
Max
4
10
Min
Max
Unit
10
pF
Cin
Input Capacitance
Cout
Maximum Three−State Output Capacitance
6
pF
CPD
Power Dissipation Capacitance (Note 2)
19
pF
2. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: ICC(OPR) = CPD VCC fin + ICC / 8 (per bit). CPD is used to determine the no−load
dynamic power consumption; PD = CPD VCC2 fin + ICC VCC.
NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 3.3V, Measured in SOIC Package)
TA = 25°C
Symbol
Typ
Characteristic
Max
Unit
VOLP
Quiet Output Maximum Dynamic VOL
0.5
0.8
V
VOLV
Quiet Output Minimum Dynamic VOL
−0.5
−0.8
V
VIHD
Minimum High Level Dynamic Input Voltage
2.0
V
VILD
Maximum Low Level Dynamic Input Voltage
0.8
V
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4
MC74LVX244
SWITCHING WAVEFORMS
1Dn, 2Dn
1On, 2On
VCC
50%
tPLH
tPHL
1OE, 2OE
VCC
50%
GND
tPZL
1On, 2On
50% VCC
50% VCC
tPZH
1On, 2On
tPHZ
50% VCC
Figure 3.
GND
tPLZ
HIGH
IMPEDANCE
VOL +0.3V
VOH −0.3V
HIGH
IMPEDANCE
Figure 4.
TEST CIRCUITS
TEST POINT
TEST POINT
OUTPUT
DEVICE
UNDER
TEST
OUTPUT
DEVICE
UNDER
TEST
CL*
*Includes all probe and jig capacitance
1 k
CL*
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
Figure 5. Propagation Delay Test Circuit
Figure 6. Three−State Test Circuit
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5
MC74LVX244
PACKAGE DIMENSIONS
SOIC−20
DW SUFFIX
CASE 751D−05
ISSUE G
20
11
X 45 h
1
10
20X
DIM
A
A1
B
C
D
E
e
H
h
L
B
B
0.25
M
T A
B
S
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.
A
B
M
D
e
18X
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
SEATING
PLANE
A1
C
T
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
−U−
L
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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6
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
MC74LVX244
PACKAGE DIMENSIONS
SOEIAJ−20
M SUFFIX
CASE 967−01
ISSUE O
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)
M
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).
0.10 (0.004)
http://onsemi.com
7
MILLIMETERS
MIN
MAX
−−−
2.05
0.05
0.20
0.35
0.50
0.18
0.27
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
0.007
0.011
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
MC74LVX244
ON Semiconductor and
are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
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“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
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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8
For additional information, please contact your
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MC74LVX244/D
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