SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
EPIC
(Enhanced-Performance Implanted
CMOS) Submicron Process
D
Typical VOLP (Output Ground Bounce)
< 0.8 V at VCC = 3.3 V, TA = 25°C
D
Typical VOHV (Output VOH Undershoot)
> 2 V at VCC = 3.3 V, TA = 25°C
D
Power Off Disables Outputs, Permitting
Live Insertion
D
Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
3.3-V VCC)
D
ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
D
Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), Thin Shrink Small-Outline (PW), and
Ceramic Flat (W) Packages, Ceramic Chip
Carriers (FK), and DIPs (J)
description
The SN54LVC541A octal buffer/driver is designed
for 2.7-V to 3.6-V VCC operation and the
SN74LVC541A octal buf fer/driver is designed for
1.65-V to 3.6-V VCC operation.
The ’LVC541A devices are ideal for driving bus
lines or buffering memory address registers.
These devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board
layout.
The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output enable (OE1 or OE2)
input is high, all eight outputs are in the high-impedance state.
T o ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
The SN54LVC541A is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74LVC541A is characterized for operation from –40°C to 85°C.
Copyright 1998, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC is a trademark of Texas Instruments Incorporated.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
SN54LVC541A ...J OR W PACKAGE
SN74LVC541A . . . DB, DW, OR PW PACKAGE
(TOP VIEW)
3212019
910111213
4
5
6
7
8
18
17
16
15
14
Y1
Y2
Y3
Y4
Y5
A3
A4
A5
A6
A7
SN54LVC541A . . . FK PACKAGE
(TOP VIEW)
A2
A1
OE1
Y7
Y6 OE2
A8
GND
Y8 VCC
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
FUNCTION TABLE
INPUTS OUTPUT
OE1 OE2 A Y
L L L L
LLH H
HXX Z
XHX Z
logic symbol†
2
A1 3
A2 4
A3 5
A4 6
A5 7
A6 8
A7 9
A8
Y1
18
Y2
17
Y3
16
Y4
15
Y5
14
Y6
13
Y7
12
Y8
11
1
19
OE1
OE2
†This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
1
EN
&
logic diagram (positive logic)
OE1
OE2
To Seven Other Channels
A1 Y1
1
19
218
SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC –0.5 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1) –0.5 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high-impedance or power-off state, VO
(see Note 1) –0.5 V to 6.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high or low state, VO
(see Notes 1 and 2) –0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0) –50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND ±100 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Note 3): DB package 115°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DW package 97°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 128°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†Stresses beyond those listed under “absolute maximum ratings” 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 af fect device reliability.
NOTES: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The value of VCC is provided in the recommended operating conditions table.
3. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions (see Note 4)
SN54LVC541A SN74LVC541A
UNIT
MIN MAX MIN MAX
UNIT
VCC
Su
pp
ly voltage
Operating 2 3.6 1.65 3.6
V
V
CC
S
u
ppl
y v
oltage
Data retention only 1.5 1.5
V
VCC = 1.65 V to 1.95 V 0.65 ×VCC
VIH High-level input voltage VCC = 2.3 V to 2.7 V 1.7 V
VCC = 2.7 V to 3.6 V 2 2
VCC = 1.65 V to 1.95 V 0.35 ×VCC
VIL Low-level input voltage VCC = 2.3 V to 2.7 V 0.7 V
VCC = 2.7 V to 3.6 V 0.8 0.8
VIInput voltage 0 5.5 0 5.5 V
VO
Out
p
ut voltage
High or low state 0 VCC 0 VCC
V
V
O
O
u
tp
u
t
v
oltage
3 state 0 5.5 0 5.5
V
VCC = 1.65 V –4
IOH
High level out
p
ut current
VCC = 2.3 V –8
mA
I
OH
High
-
le
v
el
o
u
tp
u
t
c
u
rrent
VCC = 2.7 V –12 –12
mA
VCC = 3 V –24 –24
VCC = 1.65 V 4
IOL
Low level out
p
ut current
VCC = 2.3 V 8
mA
I
OL
Lo
w-
le
v
el
o
u
tp
u
t
c
u
rrent
VCC = 2.7 V 12 12
mA
VCC = 3 V 24 24
TAOperating free-air temperature –55 125 –40 85 °C
NOTE 4: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs
, literature number SCBA004.
SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
4POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
SN54LVC541A SN74LVC541A
UNIT
PARAMETER
TEST
CONDITIONS
V
CC MIN TYP†MAX MIN TYP†MAX
UNIT
IOH = 100 µA
1.65 V to 3.6 V VCC–0.2
I
OH = –
100
µ
A
2.7 V to 3.6 V VCC–0.2
IOH = –4 mA 1.65 V 1.2
VOH IOH = –8 mA 2.3 V 1.7 V
IOH =12mA
2.7 V 2.2 2.2
I
OH = –
12
mA
3 V 2.4 2.4
IOH = –24 mA 3 V 2.2 2.2
IOL = 100 µA
1.65 V to 3.6 V 0.2
I
OL =
100
µ
A
2.7 V to 3.6 V 0.2
VOL
IOL = 4 mA 1.65 V 0.45
V
V
OL IOL = 8 mA 2.3 V 0.7
V
IOL = 12 mA 2.7 V 0.4 0.4
IOL = 24 mA 3 V 0.55 0.55
IIVI = 0 to 5.5 V 3.6 V ±5±5µA
Ioff VI or VO = 5.5 V 0 ±10 µA
IOZ VO = 0 to 5.5 V 3.6 V ±15 ±10 µA
ICC
VI = VCC or GND
IO=0
36V
10 10
µA
I
CC 3.6 V ≤ VI ≤ 5.5 V‡
I
O =
0
3
.
6
V
10 10 µ
A
∆ICC One input at VCC – 0.6 V,
Other inputs at VCC or GND 2.7 V to 3.6 V 500 500 µA
CiVI = VCC or GND 3.3 V 4 4 pF
CoVO = VCC or GND 3.3 V 5.5 5.5 pF
†All typical values are at VCC = 3.3 V, TA = 25°C.
‡This applies in the disabled state only.
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figure 3)
SN54LVC541A
PARAMETER FROM
(INPUT) TO
(OUTPUT) VCC = 2.7 V VCC = 3.3 V
± 0.3 V UNIT
MIN MAX MIN MAX
tpd A Y 5.6 1 5.1 ns
ten OE Y 7.5 1 7 ns
tdis OE Y 7.7 1 7 ns
SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figures 1 through 3)
SN74LVC541A
PARAMETER FROM
(INPUT) TO
(OUTPUT) VCC = 1.8 V
± 0.15 V VCC = 2.5 V
± 0.2 V VCC = 2.7 V VCC = 3.3 V
± 0.3 V UNIT
MIN MAX MIN MAX MIN MAX MIN MAX
tpd A Y † † † † 5.6 1.5 5.1 ns
ten OE Y † † † † 7.5 1.5 7 ns
tdis OE Y † † † † 7.7 1.5 7 ns
tsk(o)‡1ns
†This information was not available at the time of publication.
‡Skew between any two outputs of the same package switching in the same direction
operating characteristics, TA = 25°C
PARAMETER TEST
CONDITIONS
VCC = 1.8 V
± 0.15 V VCC = 2.5 V
± 0.2 V VCC = 3.3 V
± 0.3 V UNIT
CONDITIONS
TYP TYP TYP
Cpd
Power dissipation capacitance Outputs enabled
f=10MHz
† † 33 p
F
C
p
d
per buffer/driver Outputs disabled
f
=
10
MH
z††2
pF
†This information was not available at the time of publication.
SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
6POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VCC = 1.8 V ± 0.15 V
VCC/2
VCC/2
VCC/2VCC/2
VCC/2VCC/2
VCC/2
VCC/2
VOH
VOL
th
tsu
From Output
Under Test
CL = 30 pF
(see Note A)
LOAD CIRCUIT
S1 Open
GND
1k Ω
1k Ω
Output
Control
(low-level
enabling)
Output
W aveform 1
S1 at 2 × VCC
(see Note B)
Output
W aveform 2
S1 at Open
(see Note B)
tPZL
tPZH
tPLZ
tPHZ
0 V
VOL + 0.15 V
VOH – 0.15 V
0 V
VCC
0 V
0 V
tw
VCC VCC
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Timing
Input
Data
Input
Input
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
2 × VCC
Open
TEST S1
NOTES: A. CL includes probe and jig capacitance.
B. W aveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
W aveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR≤10 MHz, ZO = 50 Ω, tr≤2 ns, tf≤2 ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
0 V
VCC
VCC/2
tPHL
VCC/2 VCC/2 VCC
0 V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VCC/2 VCC/2
tPLH
2 × VCC
VCC
Figure 1. Load Circuit and Voltage Waveforms
SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VCC = 2.5 V ± 0.2 V
VCC/2
VCC/2
VCC/2VCC/2
VCC/2VCC/2
VCC/2
VCC/2
VOH
VOL
th
tsu
From Output
Under Test
CL = 30 pF
(see Note A)
LOAD CIRCUIT
S1 Open
GND
500 Ω
500 Ω
Output
Control
(low-level
enabling)
Output
W aveform 1
S1 at 2 × VCC
(see Note B)
Output
W aveform 2
S1 at GND
(see Note B)
tPZL
tPZH
tPLZ
tPHZ
0 V
VOL + 0.15 V
VOH – 0.15 V
0 V
VCC
0 V
0 V
tw
VCC VCC
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Timing
Input
Data
Input
Input
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
2 × VCC
GND
TEST S1
NOTES: A. CL includes probe and jig capacitance.
B. W aveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
W aveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR≤10 MHz, ZO = 50 Ω, tr≤2 ns, tf≤2 ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
0 V
VCC
VCC/2
tPHL
VCC/2 VCC/2 VCC
0 V
VOH
VOL
Input
Output
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VCC/2 VCC/2
tPLH
2 × VCC
VCC
Figure 2. Load Circuit and Voltage Waveforms
SN54LVC541A, SN74LVC541A
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS298H – JANUARY 1993 – REVISED JUNE 1998
8POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
VCC = 2.7 V AND 3.3 V ± 0.3 V
VOH
VOL
th
tsu
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
6 V
Open
GND
500 Ω
500 Ω
tPLH tPHL
Output
Control
(low-level
enabling)
Output
W aveform 1
S1 at 6 V
(see Note B)
Output
W aveform 2
S1 at GND
(see Note B)
tPZL
tPZH
tPLZ
tPHZ
1.5 V1.5 V
1.5 V 1.5 V 2.7 V
0 V
1.5 V 1.5 V VOH
VOL
0 V
1.5 V VOL + 0.3 V
1.5 V VOH – 0.3 V
0 V
1.5 V 2.7 V
0 V
1.5 V 1.5 V 0 V
2.7 V
0 V
1.5 V 1.5 V
tw
Input
2.7 V 2.7 V
3 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
Timing
Input
Data
Input
Output
Input
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
6 V
GND
TEST S1
NOTES: A. CL includes probe and jig capacitance.
B. W aveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
W aveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR≤10 MHz, ZO = 50 Ω, tr≤2.5 ns, tf≤2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
Figure 3. Load Circuit and Voltage Waveforms
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any product or service without notice, and advise customers to obtain the latest version of relevant information
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pertaining to warranty, patent infringement, and limitation of liability.
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty . Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.
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DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
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Copyright 1998, Texas Instruments Incorporated
