INTEGRATED CIRCUITS
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
Philips
Semiconductors
Philips Semiconductors
Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
74LVC541A
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
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25°C; t
r
= t
f
≤
2.5 ns
SYMBOL
t
PHL
/t
PLH
C
I
C
PD
PARAMETER
Propagation delay
An to Yn
Input capacitance
Power dissipation capacitance per buffer
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.
CONDITIONS
C
L
= 50 pF;
V
CC
= 3.3 V
Notes 1 and 2
TYPICAL
3.3
5.0
20
UNIT
ns
pF
pF
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (P
D
in
µW)
P
D
= C
PD
×
V
CC2
×
f
i
)
(C
L
×
V
CC2
×
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
CC2
×
f
o
) = sum of the outputs.
2. The condition is V
I
= GND to V
CC
ORDERING INFORMATION
PACKAGES
20-Pin Plastic SO
20-Pin Plastic SSOP Type II
20-Pin Plastic TSSOP Type I
TEMPERATURE RANGE
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
OUTSIDE NORTH AMERICA
74LVC541A D
74LVC541A DB
74LVC541A PW
NORTH AMERICA
74LVC541A D
74LVC541A DB
7LVC541APW DH
PKG. DWG. #
SOT163-1
SOT339-1
SOT360-1
PIN DESCRIPTION
PIN NUMBER
1, 19
2, 3, 4, 5,
6, 7, 8, 9
10
18, 17, 16, 15,
14, 13, 12, 11
20
SYMBOL
OE1, OE2
A0 to A7
GND
Y0 to Y7
V
CC
NAME AND FUNCTION
Output enable inputs
(active LOW)
Data inputs
Ground (0 V)
Bus outputs
Positive supply voltage
FUNCTION TABLE
INPUTS
OE1
L
L
X
H
OE2
L
L
H
X
INPUTS
An
L
H
X
X
OUTPUT
Yn
L
H
Z
Z
H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
1998 Jul 29
2
853-2103 19803
Philips Semiconductors
Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
74LVC541A
PIN CONFIGURATION
LOGIC SYMBOL (IEEE/IEC)
1
OE
1
A
0
A
1
A
2
A
3
A
4
A
5
A
6
A
7
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
OE
2
Y
0
Y
1
Y
2
Y
3
Y
4
Y
5
Y
6
Y
7
2
19
&
EN
18
17
16
15
14
13
12
11
3
4
5
6
7
8
9
SV00680
SV00682
LOGIC SYMBOL
A
0
Y
0
FUNCTIONAL DIAGRAM
2
18
3
A
1
Y
1
17
A
0
Y
0
18
2
3
A
1
Y
1
17
4
A
2
Y
2
16
4
A
2
Y
2
16
5
A
3
Y
3
15
5
A
3
Y
3
15
6
A
4
Y
4
14
6
A
4
Y
4
14
7
A
5
Y
5
13
7
A
5
Y
5
8
13
9
A
6
Y
6
12
A
7
Y
7
11
A
6
8
Y
6
12
1
OE
1
OE
2
A
7
9
Y
7
19
11
SV00683
1
19
OE
1
OE
2
SV00681
1998 Jul 29
3
Philips Semiconductors
Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
74LVC541A
RECOMMENDED OPERATING CONDITIONS
SYMBOL
V
CC
V
I
V
O
T
amb
t
r
, t
f
PARAMETER
DC supply voltage (for max. speed performance)
DC supply voltage (for low-voltage applications)
DC input voltage range
DC output voltage range; output HIGH or LOW state
DC output voltage range; output 3-State
Operating free-air temperature range
Input rise and fall times
V
CC
= 1.2 to 2.7V
V
CC
= 2.7 to 3.6V
CONDITIONS
LIMITS
MIN
2.7
1.2
0
0
0
–40
0
0
MAX
3.6
3.6
5.5
V
CC
5.5
+85
20
10
UNIT
V
V
V
°C
ns/V
ABSOLUTE MAXIMUM RATINGS
1
In accordance with the Absolute Maximum Rating System (IEC 134)
Voltages are referenced to GND (ground = 0V)
SYMBOL
V
CC
I
IK
V
I
I
OK
V
O
I
O
I
GND
, I
CC
T
stg
PARAMETER
DC supply voltage
DC input diode current
DC input voltage
DC output diode current
DC output voltage; output HIGH or
LOW
DC output voltage; output 3-State
DC output diode current
DC V
CC
or GND current
Storage temperature range
Power dissipation per package
– plastic mini-pack (SO)
– plastic shrink mini-pack (SSOP and
TSSOP)
above +70°C derate linearly with 8 mW/K
above +60°C derate linearly with 5.5 mW/K
V
I
t0
Note 2
V
O
uV
CC
or V
O
t
0
Note 2
Note 2
V
O
= 0 to V
CC
CONDITIONS
RATING
–0.5 to +6.5
–50
–0.5 to +5.5
±50
–0.5 to V
CC
+0.5
–0.5 to +6.5
±50
±100
–60 to +150
500
500
mW
mA
mA
°C
UNIT
V
mA
V
mA
V
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.
1998 Jul 29
4
Philips Semiconductors
Product specification
Octal buffer/line driver with 5-volt tolerant
inputs/outputs (3-State)
74LVC541A
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
MIN
V
IH
HIGH level Input voltage
V
CC
= 1.2V
V
CC
= 2.7 to 3.6V
LOW level Input voltage
V
CC
= 1.2V
V
CC
= 2.7 to 3.6V
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= –12mA
V
O
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= –100µA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –18mA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –24mA
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100µA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
I
I
I
OZ
I
OFF
I
CC
∆I
CC
Input leakage current
3-State output OFF-state current
Power off leakage supply
Quiescent supply current
Additional quiescent supply current
per input pin
V
CC
= 3.6V; V
I
= 5.5V or GND
V
CC
= 3.6V; V
I
= V
IH
or V
IL
; V
O
= 5.5V or GND
V
CC
= 0.0V; V
I
or V
O
= 5.5V
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
V
CC
= 2.7V to 3.6V; V
I
= V
CC
–0.6V; I
O
= 0
0.1
5
"0.1
0.1
V
CC
*0.5
V
CC
*0.2
V
CC
*0.6
V
CC
*0.8
0.40
0.20
0.55
"5
"5
"10
10
500
µA
µA
µA
µA
µA
V
V
CC
V
V
CC
2.0
GND
V
0.8
TYP
1
MAX
V
UNIT
V
IL
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
MIN
t
PHL
/t
PLH
t
PZH
/t
PZL
t
PHZ
/t
PLZ
Propagation delay
An to Yn
3-State output enable time
OEn to Yn
3-State output disable time
OEn to Yn
Figures 1, 3
Figures 2, 3
Figures 2, 3
1.5
1.5
1.5
TYP
1
3.3
4.4
3.8
MAX
5.6
7.4
6.0
MIN
1.5
1.5
1.5
V
CC
= 2.7V
TYP
3.9
5.2
4.3
MAX
6.6
8.4
7.0
V
CC
=
1.2V
TYP
14
2.2
11
ns
ns
ns
UNIT
NOTE:
1. Unless otherwise stated, all typical values are at V
CC
= 3.3V and T
amb
= 25°C.
1998 Jul 29
5
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