MC74ACT241
Octal Buffer/Line Driver
with 3−State Outputs
The MC74ACT241 is an octal buffer and line driver designed to be
employed as a memory address driver, clock driver and bus oriented
transmitter or 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
•
TTL Compatible Inputs
•
Pb−Free Packages are Available
1
V
CC
20
OE
2
19
YA
1
18
DB
4
17
YA
2
16
DB
3
15
YA
3
14
DB
2
13
YA
4
12
DB
1
11
SOIC−20W
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
ACT241
AWLYYWWG
1
20
1
OE
1
2
DA
1
3
YB
4
4
DA
2
5
YB
3
6
DA
3
7
YB
2
8
DA
4
9
YB
1
10
GND
1
TSSOP−20
DT SUFFIX
CASE 948E
ACT
241
ALYWG
G
1
Figure 1. Pinout: 20−Lead Packages Conductors
(Top View)
TRUTH TABLE
Inputs
OE
1
L
L
H
D
L
H
X
Outputs
(Pins 12, 14, 16, 18)
L
H
Z
1
SOEIAJ−20
M SUFFIX
CASE 967
1
20
74ACT241
AWLYWWG
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
TRUTH TABLE
Inputs
OE
2
H
H
L
D
L
H
X
Outputs
(Pins 3, 5, 7, 9)
L
H
Z
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)
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
©
Semiconductor Components Industries, LLC, 2006
1
December, 2006 − Rev. 5
Publication Order Number:
MC74ACT241/D
MC74ACT241
MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
STG
T
L
T
J
q
JA
P
D
MSL
F
R
V
ESD
DC Supply Voltage
DC Input Voltage
DC Output Voltage (Note 1)
DC Input Diode Current
DC Output Diode Current
DC Output Sink/Source Current
DC Supply Current per Output Pin
DC Ground Current per Output Pin
Storage Temperature Range
Lead temperature, 1 mm from Case for 10 Seconds
Junction temperature under Bias
Thermal Resistance
Power Dissipation in Still Air at 85_C
Moisture Sensitivity
Flammability Rating
ESD Withstand Voltage
Oxygen Index: 30% − 35%
Human Body Model (Note 2)
Machine Model (Note 3)
Charged Device Model (Note 4)
Above V
CC
and Below GND at 85_C (Note 5)
SOIC
TSSOP
SOIC
TSSOP
Parameter
Value
*0.5
to
)7.0
*0.5 v
V
I
v
V
CC
)0.5
*0.5 v
V
O
v
V
CC
)0.5
$20
$50
$50
$50
$100
*65
to
)150
260
)150
96
128
500
450
Level 1
UL 94 V−0 @ 0.125 in
> 2000
> 200
> 1000
$100
V
Unit
V
V
V
mA
mA
mA
mA
mA
_C
_C
_C
_C/W
mW
I
Latchup
Latchup Performance
mA
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.
1. I
O
absolute maximum rating must be observed.
2. Tested to EIA/JESD22−A114−A.
3. Tested to EIA/JESD22−A115−A.
4. Tested to JESD22−C101−A.
5. Tested to EIA/JESD78.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
in
, V
out
T
A
t
r
, t
f
I
OH
I
OL
Parameter
DC Input Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Operating Temperature, All Package Types
Input Rise and Fall Time (Note 7)
Output Current − High
Output Current − Low
V
CC
= 4.5 V
V
CC
= 5.5 V
Min
4.5
0
−40
0
0
−
−
25
10
8.0
−
−
Typ
Max
5.5
V
CC
+85
10
8.0
−24
24
Unit
V
V
°C
ns/V
mA
mA
6. Unused Inputs may not be left open. All inputs must be tied to a high voltage level or low logic voltage level.
7. V
in
from 0.8 V to 2.0 V; refer to individual Data Sheets for devices that differ from the typical input rise and fall times.
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2
MC74ACT241
DC CHARACTERISTICS
V
CC
(V)
4.5
5.5
4.5
5.5
4.5
5.5
4.5
5.5
V
OL
Maximum Low Level Output Voltage
4.5
5.5
4.5
5.5
I
IN
DI
CCT
I
OZ
Maximum Input Leakage Current
Additional Maximum I
CC
/Input
Maximum 3−State Current
5.5
5.5
5.5
T
A
= +255C
Typ
1.5
1.5
1.5
1.5
4.49
5.49
−
0.001
0.001
−
−
0.6
−
T
A
= −405C to +855C
Unit
V
V
V
V
V
V
V
V
V
V
V
V
mA
mA
mA
Conditions
V
OUT
= 0.1 V or
V
CC
− 0.1 V
V
OUT
= 0.1 V or
V
CC
− 0.1 V
I
OUT
= −50
mA
*V
IN
= V
IL
or V
IH
I
OH
I
OUT
= 50
mA
*V
IN
= V
IL
or V
IH
I
OL
V
I
= V
CC
, GND
V
I
= V
CC
− 2.1 V
V
I
(OE) = V
IL
, V
IH
V
I
= V
CC
, GND
V
O
= V
CC
, GND
V
OLD
= 1.65 V Max
V
OHD
= 3.85 V Min
V
IN
= V
CC
or GND
24 mA
24 mA
−24 mA
−24 mA
Symbol
V
IH
V
IL
V
OH
Parameter
Minimum High Level Input Voltage
Maximum Low Level Input Voltage
Minimum High Level Output Voltage
Guaranteed Limits
2.0
2.0
0.8
0.8
4.4
5.4
3.86
4.86
0.1
0.1
0.36
0.36
±0.1
−
±0.5
2.0
2.0
0.8
0.8
4.4
5.4
3.76
4.76
0.1
0.1
0.44
0.44
±1.0
1.5
±5.0
I
OLD
I
OHD
I
CC
†Minimum Dynamic Output Current
Maximum Quiescent Supply Current
5.5
5.5
5.5
−
−
−
8.0
75
−75
80
mA
mA
mA
*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
t
r
= t
f
= 3.0 ns (
For Figures and Waveforms, See Figures 2, 3, and 4.)
T
A
= +255C
C
L
= 50 pF
Min
1.5
1.5
1.5
1.5
1.5
2.0
Typ
6.5
7.0
6.0
7.0
8.0
7.0
Max
9.0
9.0
9.0
10.0
10.5
10.5
T
A
= −405C to +855C
C
L
= 50 pF
Min
1.5
1.5
1.0
1.5
1.5
1.5
Max
10.0
10.0
10.0
11.0
11.5
11.5
Unit
ns
ns
ns
ns
ns
ns
Symbol
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Parameter
Propagation Delay Data to Output
Propagation Delay Data to Output
Output Enable Time
Output Enable Time
Output Disable Time
Output Disable Time
V
CC
*
(V)
5.0
5.0
5.0
5.0
5.0
5.0
*Voltage Range 5.0 V is 5.0 V
±0.5
V
CAPACITANCE
Symbol
C
IN
C
PD
Input Capacitance
Power Dissipation Capacitance
Parameter
Value Typ
4.5
45
Unit
pF
pF
Test Conditions
V
CC
= 5.0 V
V
CC
= 5.0 V
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3
MC74ACT241
SWITCHING WAVEFORMS
t
r
INPUT
DATA
50%
t
w
1/f
max
t
PLH
OUTPUT
50%
t
f
3.0 V
GND
t
PHL
Figure 2.
3.0 V
OE
1
1.3 V
GND
3.0 V
OE
2
1.3 V
GND
t
PZL
t
PLZ
OUTPUT Y
(12, 14, 16, 18)
1.3 V
10%
t
PZH
t
PHZ
OUTPUT Y
(3, 5, 7, 9)
1.3 V
90%
HIGH
IMPEDANCE
V
OL
V
OH
HIGH
IMPEDANCE
Figure 3.
450
W
INPUT
OUTPUT
DEVICE
UNDER
TEST
50
W
SCOPE
TEST POINT
C
L
*
*Includes all probe and jig capacitance
Figure 4. Test Circuit
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4
MC74ACT241
ORDERING INFORMATION
Device
MC74ACT241DW
MC74ACT241DWG
MC74ACT241DWR2
MC74ACT241DWR2G
MC74ACT241DTR2
MC74ACT241DTR2G
MC74ACT241MEL
MC74ACT241MELG
Package
SOIC−20
SOIC−20
(Pb−Free)
SOIC−20
SOIC−20
(Pb−Free)
TSSOP−20*
TSSOP−20*
SOEIAJ−20
SOEIAJ−20
(Pb−Free)
2000 / Tape & Reel
2500 / Tape & Reel
1000 / Tape & Reel
38 Units / Rail
Shipping
†
†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
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