Page 1
74LV541
Octal buffer/line driver (3-State)
Product specification
Supersedes data of 1997 Mar 04
IC24 Data Handbook
1997 Jun 10
INTEGRATED CIRCUITS
Page 2
Philips Semiconductors Product specification
74L V541Octal buffer/line driver (3-State)
2
1998 Jun 10 853–1937 19545
FEA TURES
•Optimized for Low Voltage applications: 1.0 to 3.6V
•Accepts TTL input levels between V
CC
= 2.7V and VCC = 3.6V
•Typical V
OLP
(output ground bounce) 0.8V @ VCC = 3.3V ,
T
amb
= 25°C
•Typical V
OHV
(output VOH undershoot) 2V @ VCC = 3.3V ,
T
amb
= 25°C
•Non-inverting outputs
•Output capability: bus driver
•I
CC
category: MSI
DESCRIPTION
The 74LV541 is a low–voltage CMOS device and is pin and function
compatible with 74HC/HCT541.
The 74LV541 is an octal non-inverting buf fer/line driver with 3-State
outputs. The 3-State outputs are controlled by the output enable
inputs OE
1
and OE2.
A HIGH on OEn causes the outputs to assume a high impedance
OFF–state.
QUICK REFERENCE DA TA
GND = 0V; T
amb
= 25°C; tr = tf 2.5 ns
SYMBOL
PARAMETER CONDITIONS TYPICAL UNIT
t
PHL/tPLH
Propagation delay
An to Y
n
CL = 15pF
VCC = 3.3V
10 ns
C
I
Input capacitance 3.5 pF
C
PD
Power dissipation capacitance per buffer VI = GND to VCC
1
37 pF
NOTES:
1. C
PD
is used to determine the dynamic power dissipation (PD in µW)
P
D
= CPD V
CC
2
fi (CL V
CC
2
fo) where:
f
i
= input frequency in MHz; CL = output load capacity in pF;
f
o
= output frequency in MHz; VCC = supply voltage in V;
(C
L
V
CC
2
fo) = sum of the outputs.
ORDERING INFORMATION
PACKAGES TEMPERATURE RANGE OUTSIDE NORTH AMERICA NORTH AMERICA PKG. DWG. #
20-Pin Plastic DIL –40°C to +125°C 74LV541 N 74LV541 N SOT146-1
20-Pin Plastic SO –40°C to +125°C 74LV541 D 74L541 D SOT163-1
20-Pin Plastic SSOP Type II –40°C to +125°C 74LV541 DB 74LV541 DB SOT339-1
20-Pin Plastic TSSOP Type I –40°C to +125°C 74LV541 PW 74LV541PW DH SOT360-1
PIN DESCRIPTION
PIN
NUMBER
SYMBOL FUNCTION
1, 19 OE1, OE2Output enable input (active-LOW)
2, 3, 4, 5,
6, 7, 8, 9
A0 to A7Data inputs
10 GND Ground (0V)
18, 17, 16, 15,
14, 13, 12, 11
Y0 to Y7Bus outputs
20 V
CC
Positive supply voltage
FUNCTION TABLE
INPUTS OUTPUT
OE
1
OE
2
nA nY
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
Page 3
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
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
Page 4
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
4
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT
V
CC
DC supply voltage See Note 1 1.0 3.3 3.6 V
V
I
Input voltage 0 – V
CC
V
V
O
Output voltage 0 – V
CC
V
T
amb
Operating ambient temperature range in free air
See DC and AC
characteristics
–40
–40
+85
+125
°C
tr, t
f
Input rise and fall times
VCC = 1.0V to 2.0V
VCC = 2.0V to 2.7V
V
CC
= 2.7V to 3.6V
–
–
–
–
–
–
–
500
200
100
ns/V
NOTE:
1. The LV is guaranteed to function down to V
CC
= 1.0V (input levels GND or VCC); DC characteristics are guaranteed from VCC = 1.2V to VCC = 3.6V.
ABSOLUTE MAXIMUM RATINGS
1, 2
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 +4.6 V
±I
IK
DC input diode current VI < –0.5 or VI > VCC + 0.5V 20 mA
±I
OK
DC output diode current VO < –0.5 or VO > VCC + 0.5V 50 mA
±I
O
DC output source or sink current
– bus driver outputs
–0.5V < VO < VCC + 0.5V 35 mA
±I
GND
,
±I
CC
DC VCC or GND current for types with
–bus driver outputs
70 mA
T
stg
Storage temperature range –65 to +150 °C
Power dissipation per package for temperature range: –40 to +125°C
–plastic DIL above +70°C derate linearly with 12mW/K 750
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 400
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.
Page 5
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
5
DC CHARACTERISTICS FOR THE L V FAMILY
Over recommended operating conditions. V oltages are referenced to GND (ground = 0V).
LIMITS
SYMBOL P ARAMETER TEST CONDITIONS
-40°C to +85°C -40°C to +125°C
UNIT
MIN TYP
1
MAX MIN MAX
VCC = 1.2V 0.9 0.9
V
IH
HIGH level Input
VCC = 2.0V 1.4 1.4
V
voltage
VCC = 2.7 to 3.6V 2.0 2.0
VCC = 1.2V 0.3 0.3
V
IL
LOW level Input
VCC = 2.0V 0.6 0.6
V
voltage
VCC = 2.7 to 3.6V 0.8 0.8
VCC = 1.2V; VI = VIH or V
IL;
–IO = 100µA 1.2
HIGH level output
VCC = 2.0V; VI = VIH or V
IL;
–IO = 100µA 1.8 2.0 1.8
voltage; all outputs
VCC = 2.7V; VI = VIH or V
IL;
–IO = 100µA 2.5 2.7 2.5
V
OH
VCC = 3.0V; VI = VIH or V
IL;
–IO = 100µA 2.8 3.0 2.8
V
HIGH level output
voltage; BUS driver
outputs
VCC = 3.0V; VI = VIH or V
IL;
–IO = 8mA 2.40 2.82 2.20
VCC = 1.2V; VI = VIH or V
IL;
IO = 100µA 0
LOW level output
VCC = 2.0V; VI = VIH or V
IL;
IO = 100µA 0 0.2 0.2
voltage; all outputs
VCC = 2.7V; VI = VIH or V
IL;
IO = 100µA 0 0.2 0.2
V
OL
VCC = 3.0V; VI = VIH or V
IL;
IO = 100µA 0 0.2 0.2
V
LOW level output
voltage; BUS driver
outputs
VCC = 3.0V; VI = VIH or V
IL;
IO = 8mA 0.20 0.40 0.50
I
I
Input leakage
current
VCC = 3.6V; VI = VCC or GND 1.0 1.0 µA
I
OZ
3-State output
OFF-state current
VCC = 3.6V; VI = VIH or V
IL;
VO = VCC or GND
5 10 µA
I
CC
Quiescent supply
current; MSI
VCC = 3.6V; VI = VCC or GND; IO = 0 20.0 160 µA
∆I
CC
Additional
quiescent supply
current per input
VCC = 2.7V to 3.6V; VI = VCC – 0.6V 500 850 µA
NOTE:
1. All typical values are measured at T
amb
= 25°C.
Page 6
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
6
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL = 1KW
LIMITS
SYMBOL PARAMETER WAVEFORM
CONDITION
–40 to +85 °C –40 to +125 °C
UNIT
VCC(V) MIN TYP1MAX MIN MAX
1.2 – 60 – – –
Propagation delay
2.0 – 20 39 – 46
t
PHL/tPLH
gy
An to Y
n
Figure 1
2.7 – 15 29 – 34
ns
3.0 to 3.6 – 11
2
23 – 27
1.2 – 100 – – –
3-State output enable time
2.0 – 34 65 – 77
t
PZH/tPZL
OEn to Y
n
Figure 2
2.7 – 25 48 – 56
ns
3.0 to 3.6 – 19
2
38 – 45
1.2 – 100 – – –
3-State output disable time
2.0 – 36 66 – 78
t
PHZ/tPLZ
OEn to Y
n
Figure 2
2.7 – 27 48 – 58
ns
3.0 to 3.6 – 21
2
39 – 47
NOTES:
1. Unless otherwise stated, all typical values are at T
amb
= 25°C.
2. Typical value measured at V
CC
= 3.3V .
AC WAVEFORMS
VM = 1.5V at VCC 2.7V
V
M
= 0.5 * VCC at V
CC
2.7V
V
OL
and V
OH
are the typical output voltage drop that occur with the
output load.
V
X
= V
OL
+ 0.3V at VCC 2.7V
V
X
= V
OL
+ 0.1VCC at VCC < 2.7V
V
Y
= V
OH
– 0.3V at VCC 2.7V
V
Y
= V
OH
– 0.1 VCC at VCC < 2.7V
SV00684
V
M
An INPUT
Y
n
OUTPUT
V
M
t
PLH
t
PHL
GND
V
OL
V
1
V
OH
Figure 1. Input (An) to output (Yn) propagation delays
SV00685
outputs
disabled
outputs
enabled
outputs
enabled
t
PHZ
t
PZH
t
PZL
t
PLZ
OUTPUT
HIGH-to-OFF
OFF–to-HIGH
OUTPUT
LOW-to-OFF
OFF-to-LOW
V
M
V
M
OEn 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
Page 7
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
7
TEST CIRCUIT
SWITCH POSITION
PULSE
GENERATOR
R
T
V
I
D.U.T.
V
O
C
L
V
CC
RL = 1k
Test Circuit for switching times
Open
GND
S
1
DEFINITIONS
V
CC
V
I
< 2.7V V
CC
TEST S
1
t
PLH/tPHL
Open
RL = Load resistor
C
L
= Load capacitance includes jig and probe capacitance
R
T
= Termination resistance should be equal to Z
OUT
of pulse generators.
2 V
CC
t
PLZ/tPZL
2.7V2.7–3.6V
t
PHZ/tPZH
GND
50pF
SV00895
RL = 1k
2 * V
CC
Figure 3. Load circuitry for switching times
Page 8
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
8
DIP20: plastic dual in-line package; 20 leads (300 mil) SOT146-1
Page 9
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
9
SO20: plastic small outline package; 20 leads; body width 7.5 mm SOT163-1
Page 10
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
10
SSOP20: plastic shrink small outline package; 20 leads; body width 5.3 mm SOT339-1
Page 11
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
11
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm SOT360-1
Page 12
Philips Semiconductors Product specification
74LV541Octal buffer/line driver (3-State)
1998 Jun 10
12
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.
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.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
DEFINITIONS
Data Sheet Identification Product Status Definition
Objective Specification
Preliminary Specification
Product Specification
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 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
All rights reserved. Printed in U.S.A.
print code Date of release: 05-96
Document order number: 9397-750-04452
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