Page 1
INTEGRATED CIRCUITS
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
Page 2
Philips Semiconductors Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
FEA TURES
•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
QUICK REFERENCE DATA
GND = 0 V; T
SYMBOL
t
PHL/tPLH
C
I
C
PD
= 25°C; tr = t
amb
Propagation delay
1An to 1Yn;
2An to 2Y
Input capacitance 5.0 pF
Power dissipation capacitance per buffer VCC = 3.3 V 25 pF
= 0 V
CC
≤ 2.5 ns
f
PARAMETER CONDITIONS TYPICAL UNIT
CL = 50 pF;
VCC = 3.3 V
n
74L VC241A
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 buf fer/li ne 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.
3.2 ns
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
1
1OE
1A
2
0
3
2Y
0
4
1A
1
5
2Y
1
6
1A
2
7
2Y
2
8
1A
3
9
2Y
3
10
GND
20
V
19
2OE
18
1Y
17
2A
16
1Y
15
2A
14
1Y
13
2A
1Y
12
2A
11
SV00614
CC
0
0
1
1
2
2
3
3
PIN DESCRIPTION
PIN
NUMBER
1 1OE Output enable input (active LOW)
2, 4, 6, 8 1A0 to 1A3Data inputs
3, 5, 7, 9 2Y0 to 2Y3Bus outputs
10 GND Ground (0 V)
17, 15, 13, 11 2A0 to 2A3Data inputs
18, 16, 14, 12 1Y0 to 1Y3Bus outputs
19 2OE Output enable input (active HIGH)
20 V
SYMBOL FUNCTION
CC
Positive supply voltage
1998 May 20 853-2005 19419
2
Page 3
Philips Semiconductors Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
LOGIC SYMBOL
1Y
2
1A
0
2A
17
0
4
1A
1
15
2A
1
6
1A
2
13
2A
2
8
1A
3
2A
11
3
1OE1
2OE19
LOGIC SYMBOL (IEEE/IEC)
1
EN
2
4
6
8
19
EN
11
13
15
17
18
0
2Y
0
1Y
16
1
2Y
1
14
1Y
2
2Y
2
1Y
12
3
2Y
3
SV00615
SV00609
3
5
7
9
18
16
14
12
9
7
5
3
74LVC241A
FUNCTIONAL DIAGRAM
2
1A
0
4
1A
1
6
1A
2
1A
8
3
1OE1
17
2A
0
15
2A
1
13
2A
2
11
2A
3
2OE19
FUNCTION TABLE
INPUTS OUTPUT
1OE 1A
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
n
2OE 2A
1Y018
1Y
1
1Y
2
1Y
3
2Y03
2Y
1
2Y
2
2Y
3
SV00616
n
16
14
12
5
7
9
1Y
n
2Y
n
1998 May 20
3
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Philips Semiconductors Product specification
SYMBOL
PARAMETER
CONDITIONS
UNIT
V
V
V
V
V
V
mW
Octal buffer/line driver with 5-volt tolerant
74LVC241A
inputs/outputs (3-State)
RECOMMENDED OPERATING CONDITIONS
LIMITS
MIN MAX
CC
V
T
amb
tr, t
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134).
Voltages are referenced to GND (ground = 0V).
SYMBOL
V
CC
I
IK
V
I
OK
I
O
I
GND
T
stg
P
TOT
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.
DC supply voltage (for max. speed performance) 2.7 3.6
DC supply voltage (for low-voltage applications) 1.2 3.6
DC input voltage range 0 5.5 V
I
DC output voltage range;output HIGH or LOW state 0 V
O
DC output voltage range;output 3-state 0 5.5
Operating ambient temperature range in free-air –40 +85 °C
Input rise and fall times
f
VCC = 1.2 to 2.7V
VCC = 2.7 to 3.6V
0
0
1
PARAMETER CONDITIONS RATING UNIT
DC supply voltage –0.5 to +6.5 V
DC input diode current VI 0 –50 mA
DC input voltage Note 2 –0.5 to +5.5 V
I
DC output diode current V
VCC or VO 0 50 mA
O
DC output voltage;output HIGH or LOW state Note 2 –0.5 to VCC +0.5
O
DC output voltage;output 3-state Note 2 –0.5 to 6.5
DC output source or sink current VO = 0 to V
, I
DC VCC or GND current 100 mA
CC
CC
50 mA
Storage temperature range –65 to +150 °C
Power dissipation per package
– plastic mini-pack (SO) above +70°C derate linearly with 8 mW/K 500
– plastic shrink mini-pack (SSOP and TSSOP) above +60°C derate linearly with 5.5 mW/K 500
20
10
CC
ns/V
1998 May 20
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Philips Semiconductors Product specification
VIHHIGH level Input voltage
V
VILLOW level Input voltage
V
VOHHIGH level output voltage
V
IIInput leakage current
V
V
GND
"0.1
"5µA
Octal buffer/line driver with 5-volt tolerant
74LVC241A
inputs/outputs (3-State)
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. V oltages are referenced to GND (ground = 0V).
LIMITS
SYMBOL PARAMETER TEST CONDITIONS Temp = -40°C to +85°C UNIT
MIN TYP1MAX
V
LOW level output voltage
OL
p
I
OZ
I
I
CC
∆I
3-State output OFF-state current VCC = 3.6V; VI = VIH or VIL;VO = 5.5V or GND 0.1 "10 µA
Power off leakage supply VCC = 0.0V; V
off
Quiescent supply current VCC = 3.6V; VI = VCC or GND; IO = 0 0.1 10 µA
Additional quiescent supply current
CC
per input pin
NOTE:
1. All typical values are at V
p
p
p
= 3.3V and T
CC
amb
VCC = 1.2V V
VCC = 2.7 to 3.6V 2.0
VCC = 1.2V GND
VCC = 2.7 to 3.6V 0.8
VCC = 2.7V; VI = VIH or VIL;IO = –12mA VCC*0.5
VCC = 3.0V; VI = VIH or VIL;IO = –100µA VCC*0.2 V
VCC = 3.0V; VI = VIH or V
VCC = 3.0V; VI = VIH or V
= –18mA VCC*0.6
IL;IO
= –24mA VCC*0.8
IL;IO
VCC = 2.7V; VI = VIH or VIL;IO = 12mA 0.40
VCC = 3.0V; VI = VIH or VIL;IO = 100µA 0.20
VCC = 3.0V; VI = VIH or V
;
= 3.6V;
CC
= 5.5V or
I
or VO = 5.5V 0.1 "10 µA
I
= 24mA 0.55
IL;IO
VCC = 2.7V to 3.6V; VI = VCC –0.6V; IO = 0 5 500 µA
= 25°C.
CC
CC
V
AC CHARACTERISTICS
GND = 0 V; tr = tf v 2.5 ns; CL = 50 pF; RL = 500; T
SYMBOL PARAMETER WAVEFORM VCC = 3.3V ±0.3V VCC = 2.7V VCC = 1.2V UNIT
Propagation delay
t
PHL/tPLH
t
PZH/tPZL
t
PHZ/tPLZ
t
PZH/tPZL
t
PHZ/tPLZ
1An to 1Yn;
2An to 2Y
n
3-State output enable time
1OE to 1Y
n
3-State output disable time
1OE to 1Y
n
3-State output enable time
2OE to 2Y
n
3-State output disable time
2OE to 2Y
n
NOTE:
1. These typical values are at V
= 3.3V and T
CC
amb
= –40C to +85C
amb
LIMITS
MIN TYP1MAX MIN MAX TYP
Figures 1, 4 1.5 3.2 6.1 1.5 7.1 11 ns
Figures 2, 4 1.5 3.8 7.1 1.5 8.1 13 ns
Figures 2, 4 1.5 3.7 6.0 1.5 7.0 8 ns
Figures 3, 4 1.5 3.6 7.1 1.5 8.1 13 ns
Figures 3, 4 1.5 3.6 6.0 1.5 7.0 8 ns
= 25°C.
1998 May 20
5
Page 6
Philips Semiconductors Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
AC WAVEFORMS
VM = 1.5 V at VCC ≥ 2.7 V
V
= 0.5 × VCC at VCC < 2.7 V
M
= VOL + 0.3 V at VCC ≥ 2.7 V
V
x
V
= VOL + 0.1 V × VCC at VCC < 2.7 V
x
= VOH – 0.3 V at V
V
Y
V
= VOH – 0.1 × VCC at V
Y
V
and VOH are the typical output voltage drop that occur with the
OL
output load.
V
I
1An, 2A
n
INPUTS
GND
V
OH
1Y
, 2Y
n
n
OUTPUT
V
OL
Figure 1. Input (1An, 2An) to output (1Yn, 2Yn) propagation
V
I
1OE INPUT
GND
V
OUTPUT
CC
LOW-to-OFF
OFF-to-LOW
V
OL
V
OUTPUT
OH
HIGH-to-OFF
OFF-to-HIGH
GND
Figure 2. 3-state enable and disable times for input 1OE.
t
PHL
≥ 2.7 V
CC
V
M
t
outputs
enabled
PLZ
t
CC
V
PHZ
< 2.7 V
M
V
M
delays.
V
X
V
Y
outputs
disabled
t
PLH
SV00617
t
PZL
V
M
t
PZH
V
M
outputs
enabled
SV00618
74LVC241A
V
I
2OE INPUT
GND
V
OUTPUT
CC
LOW-to-OFF
OFF-to-LOW
V
OL
VOH OUTPUT
HIGH-to-OFF
OFF-to-HIGH
GND
Figure 3. 3-state enable and disable times for input 2OE.
TEST CIRCUIT
PULSE
GENERATOR
V
CC
2.7V V
2.7V – 3.6V 2.7V
Figure 4. Load circuitry for switching times.
V
M
t
PLZ
V
X
t
PHZ
V
Y
outputs
enabled
V
CC
V
I
R
D.U.T.
T
V
I
CC
V
O
t
outputs
disabled
50pF
C
L
Test S
t
PLH/tPHL
t
PLZ/tPZL
t
PHZ/tPZH
PZL
t
V
PZH
S
500Ω
500Ω
1
Open
2 x V
GND
M
V
M
SV00619
1
CC
outputs
enabled
2 x V
Open
GND
SY00003
CC
1998 May 20
6
Page 7
Philips Semiconductors Product specification
Octal buffer/line driver with 5-volt tolerant
74LVC241A
inputs/outputs (3-State)
SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1
1998 May 20
7
Page 8
Philips Semiconductors Product specification
Octal buffer/line driver with 5-volt tolerant
74LVC241A
inputs/outputs (3-State)
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1
1998 May 20
8
Page 9
Philips Semiconductors Product specification
Octal buffer/line driver with 5-volt tolerant
74LVC241A
inputs/outputs (3-State)
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1
1998 May 20
9
Page 10
Philips Semiconductors Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
DEFINITIONS
74LVC241A
Data Sheet Identification Product Status Definition
Objective Specification
Preliminary Specification
Product Specification
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
LIFE SUPPORT APPLICA TIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Formative or in Design
Preproduction Product
Full Production
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Copyright Philips Electronics North America Corporation 1998
print code Date of release: 05-96
Document order number: 9397-750-04501
All rights reserved. Printed in U.S.A.
yyyy mmm dd
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