SCLS603A − DECEMBER 2004 − REVISED APRIL 2008
D Qualified for Automotive Applications
D Operating Range 2-V to 5.5-V VCC
D Latch-Up Performance Exceeds 250 mA Per
DW OR PW PACKAGE
(TOP VIEW)
OE1
A1
A2
A3
A4
A5
A6
A7
A8
GND
JESD 17
description/ordering information
The SN74AHC541 octal buffer/driver is ideal for
driving bus lines or buffer memory address
registers. This device features inputs and outputs
on opposite sides of the package to facilitate
printed circuit board layout.
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
The 3-state control gate is a two-input AND gate with active-low inputs so that if either output-enable (OE1 or
OE2) input is high, all corresponding outputs are in the high-impedance state. The outputs provide noninverted
data when they are not in the high-impedance state.
To 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.
ORDERING INFORMATION{
−40°C to 125°C
ORDERABLE
PART NUMBER
PACKAGE‡
TA
SOIC − DW
Tape and reel
SN74AHC541QDWRQ1
TSSOP − PW
Tape and reel
SN74AHC541QPWRQ1
TOP-SIDE
MARKING
AHC541Q
AHC541Q
† For the most current package and ordering information, see the Package Option Addendum at the end of this
document, or see the TI web site at http://www.ti.com.
‡ Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.
FUNCTION TABLE
(each buffer/driver)
INPUTS
A
OUTPUT
Y
OE1
OE2
L
L
L
L
L
L
H
H
H
X
X
Z
X
H
X
Z
logic diagram (positive logic)
OE1
OE2
A1
1
19
2
18
Y1
To Seven Other Channels
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.
Copyright 2008, Texas Instruments Incorporated
!"# $ %&'# "$ (&)*%"# +"#',
+&%#$ %! # $('%%"#$ (' #-' #'!$
'."$ $#&!'#$
$#"+"+ /""#0, +&%# (%'$$1 +'$ # '%'$$"*0 %*&+'
#'$#1 "** (""!'#'$,
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1
SCLS603A − DECEMBER 2004 − REVISED APRIL 2008
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±75 mA
Package thermal impedance, θJA (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°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 affect device reliability.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
VCC
VIH
Supply voltage
VCC = 2 V
VCC = 3 V
High-level input voltage
VCC = 5.5 V
VCC = 2 V
VIL
VI
VO
IOH
∆t/∆v
MAX
2
5.5
Low-level input voltage
Input voltage
Output voltage
VCC = 2 V
VCC = 3.3 V ± 0.3 V
High-level output current
Low-level output current
Input transition rise or fall rate
UNIT
V
1.5
2.1
V
3.85
0.5
VCC = 3 V
VCC = 5.5 V
VCC = 5 V ± 0.5 V
VCC = 2 V
IOL
MIN
0.9
V
1.65
0
5.5
V
0
VCC
−50
mA
V
−4
−8
50
VCC = 3.3 V ± 0.3 V
VCC = 5 V ± 0.5 V
4
VCC = 3.3 V ± 0.3 V
VCC = 5 V ± 0.5 V
100
8
20
mA
mA
mA
ns/V
TA
Operating free-air temperature
−40
125
°C
NOTE 3: 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.
2
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SCLS603A − DECEMBER 2004 − REVISED APRIL 2008
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
IOH = −50 mA
MIN
MIN
MIN
TYP
MAX
2V
1.9
2
1.9
1.9
2.9
3
2.9
2.9
4.4
4.5
4.4
4.4
IOH = −4 mA
3V
2.58
2.48
2.48
IOH = −8 mA
4.5 V
3.94
3.8
3.8
UNIT
MAX
V
2V
0.1
0.1
0.1
3V
0.1
0.1
0.1
4.5 V
0.1
0.1
0.1
IOL = 4 mA
3V
0.36
0.5
0.44
IOL = 8 mA
4.5 V
0.36
0.5
0.44
0 V to 5.5 V
±0.1
±1
±1
mA
5.5 V
±0.25
±2.5
±2.5
mA
5.5 V
4
40
40
mA
10
pF
VOL
ICC
Ci
TA = −40°C
TO 85°C
3V
IOL = 50 mA
IOZ†
MAX
TA = −40°C
TO 125°C
4.5 V
VOH
II
TA = 25°C
VCC
VI = 5.5 V or GND
VO = VCC or GND,
VI (OE) = VIL or VIH
VI = VCC or GND,
VI = VCC or GND
IO = 0
5V
2
VO = VCC or GND
5V
† For input and ouput, IOZ includes the input leakage current.
4
Co
10
V
pF
switching characteristics over recommended operating free-air temperature range,
VCC = 3.3 V ± 0.3 V (unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
tPLH
tPHL
A
Y
CL = 15 pF
tPZH
tPZL
OE
Y
CL = 15 pF
tPHZ
tPLZ
OE
Y
CL = 15 pF
tPLH
tPHL
A
Y
CL = 50 pF
tPZH
tPZL
OE
Y
CL = 50 pF
tPHZ
tPLZ
OE
Y
CL = 50 pF
PARAMETER
tsk(o)
TA = 25°C
MIN
TA = −40°C
TO 85°C
TYP
MAX
MIN
MAX
MIN
MAX
5
7
1
8.5
1
8.5
5
7
1
8.5
1
8.5
6
10.5
1
11
1
11
6
10.5
1
11
1
11
7
11
1
12
1
12
7
11
1
12
1
12
7.5
10.5
1
12
1
12
7.5
10.5
1
12
1
12
8
14
1
16
1
16
8
14
1
16
1
16
9
15.4
1
17.5
1
17.5
9
15.4
1
17.5
1
17.5
CL = 50 pF
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TA = −40°C
TO 125°C
1.5
• DALLAS, TEXAS 75265
1.5
UNIT
ns
ns
ns
ns
ns
ns
ns
3
SCLS603A − DECEMBER 2004 − REVISED APRIL 2008
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
tPLH
tPHL
A
Y
CL = 15 pF
tPZH
tPZL
OE
Y
CL = 15 pF
tPHZ
tPLZ
OE
Y
CL = 15 pF
tPLH
tPHL
A
Y
CL = 50 pF
tPZH
tPZL
OE
Y
CL = 50 pF
tPHZ
tPLZ
OE
Y
CL = 50 pF
PARAMETER
tsk(o)
TA = 25°C
MIN
TA = −40°C
TO 125°C
TA = −40°C
TO 85°C
UNIT
TYP
MAX
MIN
MAX
MIN
MAX
3.5
5
1
6
1
6
3.5
5
1
6
1
6
4.7
7.2
1
8.5
1
8.5
4.7
7.2
1
8.5
1
8.5
5
7.5
1
8
1
8
5
7.5
1
8
1
8
5
7
1
8
1
8
5
7
1
8
1
8
6.2
9.2
1
10.5
1
10.5
6.2
9.2
1
10.5
1
10.5
6
8.8
1
10
1
10
6
8.8
1
10
1
10
CL = 50 pF
1
1
ns
ns
ns
ns
ns
ns
ns
noise characteristics, VCC = 5 V, CL = 50 pF, TA = 25°C (see Note 4)
PARAMETER
MIN
VOL(P)
VOL(V)
Quiet output, maximum dynamic VOL
VOH(V)
VIH(D)
Quiet output, minimum dynamic VOH
4.7
High-level dynamic input voltage
3.5
Quiet output, minimum dynamic VOL
VIL(D)
Low-level dynamic input voltage
NOTE 4: Characteristics are for surface-mount packages only.
MAX
UNIT
0.8
V
−0.8
V
V
V
1.5
V
TYP
UNIT
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
Cpd
4
TEST CONDITIONS
Power dissipation capacitance
No load,
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f = 1 MHz
12
pF
SCLS603A − DECEMBER 2004 − REVISED APRIL 2008
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
RL = 1 kΩ
From Output
Under Test
Test
Point
S1
VCC
Open
TEST
GND
CL
(see Note A)
CL
(see Note A)
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open Drain
Open
VCC
GND
VCC
LOAD CIRCUIT FOR
3-STATE AND OPEN-DRAIN OUTPUTS
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
VCC
50% VCC
Timing Input
tw
tsu
VCC
Input
50% VCC
50% VCC
0V
th
VCC
50% VCC
Data Input
50% VCC
0V
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
VCC
50% VCC
Input
50% VCC
0V
tPLH
In-Phase
Output
tPHL
50% VCC
tPHL
Out-of-Phase
Output
VOH
50% VCC
VOL
Output
Waveform 1
S1 at VCC
(see Note B)
50% VCC
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
50% VCC
50% VCC
0V
tPZL
tPLZ
≈VCC
50% VCC
tPZH
tPLH
VOH
50% VCC
VOL
VCC
Output
Control
Output
Waveform 2
S1 at GND
(see Note B)
VOL + 0.3 V
VOL
tPHZ
50% VCC
VOH − 0.3 V
VOH
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 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 ≤ 1 MHz, ZO = 50 Ω, tr ≤ 3 ns, tf ≤ 3 ns.
D. The outputs are measured one at a time, with one input transition per measurement.
E. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
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5
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
SN74AHC541QPWRG4Q1
ACTIVE
TSSOP
PW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
AHC541Q
SN74AHC541QPWRQ1
ACTIVE
TSSOP
PW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 125
AHC541Q
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of