Philips
Semiconductors
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
Product specification
Supercedes data of 1997 Oct 27
IC24 Data Handbook
1998 Jul 29
INTEGRATED CIRCUITS
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
2
1998 Jul 29
853-2103 19803
FEATURES
5-volt tolerant inputs/outputs, for interfacing with 5-volt logic
Wide supply voltage range of 2.7V to 3.6V
Complies with JEDEC standard no. 8-1A
CMOS low power consumption
Direct interface with TTL levels
5 Volt tolerant inputs/outputs, for interfacing with 5 Volt logic
DESCRIPTION
The 74LVC541A 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 3.3V or 5.0V devices. In 3-State
operation, outputs can handle 5V. This feature allows the use of
these devices as translators in a mixed 3.3V/5V environment.
The 74LVC541A is an octal non-inverting buffer/line driver with
5-volt tolerant inputs/outputs. The 3-State outputs are controlled by
the output enable inputs OE1 and OE2.
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
An to Yn
C
L
= 50 pF;
V
CC
= 3.3 V
3.3
ns
C
I
Input capacitance
5.0
pF
C
PD
Power dissipation capacitance per buffer
Notes 1 and 2
20
pF
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
W)
P
D
= C
PD
V
CC
2
f
i
)
(C
L
V
CC
2
f
o
) where:
f
i
= input frequency in MHz; C
L
= output load capacitance in pF;
f
o
= output frequency in MHz; V
CC
= supply voltage in V;
(C
L
V
CC
2
f
o
) = sum of the outputs.
2. The condition is V
I
= GND to V
CC
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
20-Pin Plastic SO
40
C to +85
C
74LVC541A D
74LVC541A D
SOT163-1
20-Pin Plastic SSOP Type II
40
C to +85
C
74LVC541A DB
74LVC541A DB
SOT339-1
20-Pin Plastic TSSOP Type I
40
C to +85
C
74LVC541A PW
7LVC541APW DH
SOT360-1
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1, 19
OE1, OE2
Output enable inputs
(active LOW)
2, 3, 4, 5,
6, 7, 8, 9
A0 to A7
Data inputs
10
GND
Ground (0 V)
18, 17, 16, 15,
14, 13, 12, 11
Y0 to Y7
Bus outputs
20
V
CC
Positive supply voltage
FUNCTION TABLE
INPUTS
INPUTS
OUTPUT
OE1
OE2
An
Yn
L
L
L
L
L
L
H
H
X
H
X
Z
H
X
X
Z
H = HIGH voltage level
L = LOW voltage level
X = don't care
Z = high impedance OFF-state
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
3
PIN CONFIGURATION
SV00680
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
1
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
Y
7
Y
6
Y
5
Y
4
Y
3
Y
2
Y
1
Y
0
OE
2
V
CC
LOGIC SYMBOL
SV00681
Y
4
14
Y
5
13
Y
6
12
Y
7
11
6
7
8
9
19
1
OE
1
OE
2
A
4
A
5
A
6
A
7
A
2
A
1
A
0
A
3
Y
2
16
Y
3
15
4
5
Y
0
18
Y
1
17
2
3
LOGIC SYMBOL (IEEE/IEC)
SV00682
18
17
16
15
14
13
&
EN
2
3
4
5
19
1
6
7
9
11
12
8
FUNCTIONAL DIAGRAM
SV00683
Y
4
Y
5
Y
6
Y
7
OE
1
OE
2
A
4
A
5
A
6
A
7
A
2
A
1
A
0
A
3
Y
2
Y
3
Y
0
Y
1
14
13
12
11
16
15
18
17
6
7
8
9
19
1
4
5
2
3
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
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 free-air temperature range
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
Note 2
0.5 to V
CC
+0.5
V
O
DC output voltage; output 3-State
Note 2
0.5 to +6.5
I
O
DC output diode 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
60 to +150
C
Power dissipation per package
P
TOT
plastic mini-pack (SO)
above +70
C derate linearly with 8 mW/K
500
P
TOT
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
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
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
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
"
5
A
I
OFF
Power off leakage supply
V
CC
= 0.0V; V
I
or V
O
= 5.5V
"
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
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25
C.
2. The specified overdrive current at the data input forces the data input to the opposite logic input state.
AC CHARACTERISTICS
GND = 0 V; t
r
= t
f
2.5 ns; C
L
= 50 pF
LIMITS
SYMBOL
PARAMETER
WAVEFORM
V
CC
= 3.3V
0.3V
V
CC
= 2.7V
V
CC
=
1.2V
UNIT
MIN
TYP
1
MAX
MIN
TYP
MAX
TYP
t
PHL
/t
PLH
Propagation delay
An to Yn
Figures 1, 3
1.5
3.3
5.6
1.5
3.9
6.6
14
ns
t
PZH
/t
PZL
3-State output enable time
OEn to Yn
Figures 2, 3
1.5
4.4
7.4
1.5
5.2
8.4
2.2
ns
t
PHZ
/t
PLZ
3-State output disable time
OEn to Yn
Figures 2, 3
1.5
3.8
6.0
1.5
4.3
7.0
11
ns
NOTE:
1. Unless otherwise stated, all typical values are at V
CC
= 3.3V and T
amb
= 25
C.
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
6
AC WAVEFORMS
V
M
= 1.5 V at V
CC
w
2.7 V
V
M
= 0.5
S
V
CC
at V
CC
< 2.7 V
V
X
= V
OL
+ 0.3 V at V
CC
2.7 V
V
X
= V
OL
+ 0.1
V
CC
at V
CC
< 2.7 V
V
Y
= V
OH
0.3 V at V
CC
2.7 V
V
Y
= V
OH
0.1
V
CC
at V
CC
< 2.7 V
V
OL
and V
OH
are the typical output voltage drop that occur with the
output load.
SV00700
V
M
An INPUT
Yn OUTPUT
V
M
t
PLH
t
PHL
GND
V
OL
V
I
V
OH
Figure 1. Input (A
n
) to output (Y
n
) propagation delays.
SV00685
outputs
disabled
outputs
enabled
outputs
enabled
t
PHZ
t
PZH
t
PZL
t
PLZ
OUTPUT
HIGH-to-OFF
OFFto-HIGH
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
M
V
M
OE
n
INPUT
V
X
V
OL
V
OH
V
Y
GND
GND
V
CC
V
I
V
M
Figure 2. 3-state enable and disable times.
TEST CIRCUIT
PULSE
GENERATOR
V
I
R
T
D.U.T.
V
O
C
L
50pF
S
1
2 x V
CC
Open
GND
500
500
V
CC
V
I
t
2.7V
V
CC
2.7V 3.6V
2.7V
Test
S
1
GND
t
PLZ
/t
PZL
2 x V
CC
t
PHZ
/t
PZH
t
PLH
/t
PHL
Open
SY00003
V
CC
Figure 3. Load circuitry for switching times.
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
7
SO20:
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
8
SSOP20:
plastic shrink small outline package; 20 leads; body width 5.3 mm
SOT339-1
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
1998 Jul 29
9
TSSOP20:
plastic thin shrink small outline package; 20 leads; body width 4.4 mm
SOT360-1
Philips Semiconductors
Product specification
74LVC541A
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
yyyy mmm dd
10
Definitions
Short-form specification -- The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition -- Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information -- Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support -- These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes -- Philips Semiconductors reserves 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.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 940883409
Telephone 800-234-7381
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
print code
Date of release: 08-98
Document order number:
9397-750-04509
Philips
Semiconductors
Data sheet
status
Objective
specification
Preliminary
specification
Product
specification
Product
status
Development
Qualification
Production
Definition
[1]
This data sheet contains the design target or goal specifications for product development.
Specification 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 chages 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.
Data sheet status
[1]
Please consult the most recently issued datasheet before initiating or completing a design.
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