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Philips
Semiconductors
74LVC241A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
Product specification
Supersedes data of 1997 Jul 29
IC24 Data Handbook
1998 May 20
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74LVC241A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
2
1998 May 20
853-2005 19419
FEATURES
5-Volt tolerant inputs/outputs, for interfacing with 5-volt logic.
Supply voltage range of 1.2 to 3.6 V
In accordance with JEDEC standard no. 8-1A
CMOS lower power consumption
Direct interface with TTL levels
High impedance when V
CC
= 0 V
DESCRIPTION
The 74LVC241A is a high-performance, low-power, low-voltage,
Si-gate CMOS device and superior to most advanced CMOS
compatible TTL families.
Inputs can be driven from either 3.3 V or 5 V devices. In 3-State
operation, outputs can handle 5 V. This feature allows the use of
these devices as translators in a mixed 3.3 V/5 V environment.
The 74LVC241A is an octal non-inverting buffer/line driver with 3-State
outputs. The 3-State outputs are controlled by the output enable inputs
1OE and 2OE. Schmitt-trigger action at all inputs makes the circuit
highly tolerant for slower input rise and fall times.
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
C; t
r
= t
f
2.5 ns
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
t
PHL
/t
PLH
Propagation delay
1A
n
to 1Y
n
;
2A
n
to 2Y
n
C
L
= 50 pF;
V
CC
= 3.3 V
3.2
ns
C
I
Input capacitance
5.0
pF
C
PD
Power dissipation capacitance per buffer
V
CC
= 3.3 V
25
pF
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic SO
40
C to +85
C
74LVC241A D
74LVC241A D
SOT163-1
20-Pin Plastic SSOP Type II
40
C to +85
C
74LVC241A DB
74LVC241A DB
SOT339-1
20-Pin Plastic TSSOP Type I
40
C to +85
C
74LVC241A PW
7LVC241APW DH
SOT360-1
PIN CONFIGURATION
SV00614
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A
0
2Y
0
1A
1
2Y
1
1A
2
2Y
2
1A
3
2Y
3
GND
2A
3
1Y
3
2A
2
1Y
2
2A
1
1Y
1
2A
0
1Y
0
2OE
V
CC
PIN DESCRIPTION
PIN
NUMBER
SYMBOL
FUNCTION
1
1OE
Output enable input (active LOW)
2, 4, 6, 8
1A
0
to 1A
3
Data inputs
3, 5, 7, 9
2Y
0
to 2Y
3
Bus outputs
10
GND
Ground (0 V)
17, 15, 13, 11
2A
0
to 2A
3
Data inputs
18, 16, 14, 12
1Y
0
to 1Y
3
Bus outputs
19
2OE
Output enable input (active HIGH)
20
V
CC
Positive supply voltage
Philips Semiconductors
Product specification
74LVC241A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 May 20
3
LOGIC SYMBOL
SV00615
1Y
0
2Y
0
18
3
1Y
1
2Y
1
16
5
1Y
2
2Y
2
14
7
1Y
3
2Y
3
12
9
1A
0
2A
0
2
17
1A
1
2A
1
4
15
1A
2
2A
2
6
13
1A
3
2A
3
8
11
1OE
1
2OE
19
LOGIC SYMBOL (IEEE/IEC)
SV00609
18
16
14
12
2
4
6
8
EN
1
9
7
5
3
11
13
15
17
EN
19
FUNCTIONAL DIAGRAM
SV00616
2Y
0
3
2Y
1
5
2Y
2
7
2Y
3
9
2A
0
17
2A
1
15
2A
2
13
2A
3
11
2OE
19
1Y
0
18
1Y
1
16
1Y
2
14
1Y
3
12
1A
0
2
1A
1
4
1A
2
6
1A
3
8
1OE
1
FUNCTION TABLE
INPUTS
OUTPUT
1OE
1A
n
2OE
2A
n
1Y
n
2Y
n
L
L
H
L
L
L
L
H
H
H
H
H
H
X
L
X
Z
Z
NOTES:
H =
HIGH voltage level
L
=
LOW voltage level
X =
don't care
Z =
high impedance OFF-state
Philips Semiconductors
Product specification
74LVC241A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 May 20
4
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
CONDITIONS
LIMITS
UNIT
SYMBOL
PARAMETER
CONDITIONS
MIN
MAX
UNIT
V
CC
DC supply voltage (for max. speed performance)
2.7
3.6
V
V
CC
DC supply voltage (for low-voltage applications)
1.2
3.6
V
V
I
DC input voltage range
0
5.5
V
V
O
DC output voltage range;output HIGH or LOW state
0
V
CC
V
V
O
DC output voltage range;output 3-state
0
5.5
V
T
amb
Operating ambient temperature range in free-air
40
+85
C
t
r
, t
f
Input rise and fall times
V
CC
= 1.2 to 2.7V
V
CC
= 2.7 to 3.6V
0
0
20
10
ns/V
ABSOLUTE MAXIMUM RATINGS
1
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0V).
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
V
CC
DC supply voltage
0.5 to +6.5
V
I
IK
DC input diode current
V
I
t
0
50
mA
V
I
DC input voltage
Note 2
0.5 to +5.5
V
I
OK
DC output diode current
V
O
u
V
CC
or V
O
t
0
"
50
mA
V
O
DC output voltage;output HIGH or LOW state
Note 2
0.5 to V
CC
+0.5
V
V
O
DC output voltage;output 3-state
Note 2
0.5 to 6.5
V
I
O
DC output source or sink current
V
O
= 0 to V
CC
"
50
mA
I
GND
, I
CC
DC V
CC
or GND current
"
100
mA
T
stg
Storage temperature range
65 to +150
C
Power dissipation per package
P
TOT
plastic mini-pack (SO)
above +70
C derate linearly with 8 mW/K
500
mW
plastic shrink mini-pack (SSOP and TSSOP)
above +60
C derate linearly with 5.5 mW/K
500
mW
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
Philips Semiconductors
Product specification
74LVC241A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 May 20
5
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltages are referenced to GND (ground = 0V).
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40
C to +85
C
UNIT
MIN
TYP
1
MAX
V
HIGH level Input voltage
V
CC
= 1.2V
V
CC
V
V
IH
HIGH level Input voltage
V
CC
= 2.7 to 3.6V
2.0
V
V
LOW level Input voltage
V
CC
= 1.2V
GND
V
V
IL
LOW level Input voltage
V
CC
= 2.7 to 3.6V
0.8
V
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
V
CC
*
0.5
V
O
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
A
V
CC
*
0.2
V
CC
V
V
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 18mA
V
CC
*
0.6
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
V
CC
*
0.8
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
0.40
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100
A
0.20
V
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
0.55
I
Input leakage current
V
= 3 6V; V = 5 5V or GND
"
0 1
"
5
A
I
I
Input leakage current
V
CC
= 3.6V; V
I
= 5.5V or GND
"
0.1
"
5
A
I
OZ
3-State output OFF-state current
V
CC
= 3.6V; V
I
= V
IH
or V
IL
; V
O
= 5.5V or GND
0.1
"
10
A
I
off
Power off leakage supply
V
CC
= 0.0V; V
I
or V
O
= 5.5V
0.1
"
10
A
I
CC
Quiescent supply current
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
0.1
10
A
I
CC
Additional quiescent supply current
per input pin
V
CC
= 2.7V to 3.6V; V
I
= V
CC
0.6V; I
O
= 0
5
500
A
NOTE:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
C.
AC CHARACTERISTICS
GND = 0 V; t
r
= t
f
v
2.5 ns; C
L
= 50 pF; R
L
= 500
W
; T
amb
= 40
_
C to +85
_
C
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
0.3V
V
CC
= 2.7V
V
CC
= 1.2V
UNIT
MIN
TYP
1
MAX
MIN
MAX
TYP
t
PHL
/t
PLH
Propagation delay
1A
n
to 1Y
n
;
2A
n
to 2Y
n
Figures 1, 4
1.5
3.2
6.1
1.5
7.1
11
ns
t
PZH/
t
PZL
3-State output enable time
1OE to 1Y
n
Figures 2, 4
1.5
3.8
7.1
1.5
8.1
13
ns
t
PHZ/
t
PLZ
3-State output disable time
1OE to 1Y
n
Figures 2, 4
1.5
3.7
6.0
1.5
7.0
8
ns
t
PZH/
t
PZL
3-State output enable time
2OE to 2Y
n
Figures 3, 4
1.5
3.6
7.1
1.5
8.1
13
ns
t
PHZ/
t
PLZ
3-State output disable time
2OE to 2Y
n
Figures 3, 4
1.5
3.6
6.0
1.5
7.0
8
ns
NOTE:
1. These typical values are at V
CC
= 3.3V and T
amb
= 25
C.
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