74AHCT541A
Octal buffer/line driver; 3-state
Rev. 5 — 13 June 2016
Product data sheet
1. General description
The 74AHCT541A is an 8-bit buffer/line driver with 3-state outputs and TTL inputs. The
device features two output enables (OE1 and OE2). A HIGH on OEn causes the
associated outputs to assume a high-impedance OFF-state.
Designed to operate over a VCC range from 4.5 V to 5.5 V, the inputs are TTL compatible,
which allows the device to be used to translate from 3.3 V to 5 V.
Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall
times.
This device is fully specified for partial Power-down applications using IOFF.
The IOFF circuitry disables the output, preventing the damaging backflow current through
the device when it is powered down.
2. Features and benefits
Direct interface with TTL levels
Supply voltage range from 4.5 V to 5.5 V
Typical tpd of 2.8 ns at 5 V
Typical VOL(p) < 0.8 V at VCC = 5 V, Tamb = 25 C
Typical VOH(v) > 2.3 V at VCC = 5 V, Tamb = 25 C
Supports mixed-mode voltage operation on all ports
IOFF circuitry provides partial Power-down mode operation
Latch-up performance exceeds 250 mA per JESD 78 Class II
ESD protection:
HBM ANSI/ESDA/JEDEC JS-001 Class 2 exceeds 3kV
MM JESD22-A115-A exceeds 200 V
CDM JESD22-C101E exceeds 2kV
Multiple package options
Specified from 40 C to +85 C and from 40 C to +125 C
74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
3. Ordering information
Table 1.
Ordering information
Type number
Package
Temperature range Name
74AHCT541APW 40 C to +125 C
74AHCT541ABQ
TSSOP20
40 C to +125 C
Description
Version
plastic thin shrink small outline package; 20 leads;
body width 4.4 mm
SOT360-1
DHVQFN20 plastic dual in-line compatible thermal enhanced very SOT764-1
thin quad flat package; no leads; 20 terminals;
body 2.5 4.5 0.85 mm
4. Functional diagram
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Fig 1.
Logic symbol
74AHCT541A
Product data sheet
(1
PQD
Fig 2.
IEC logic symbol
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Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
2 of 14
74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
5. Pinning information
5.1 Pinning
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(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 3.
Pin configuration TSSOP20
Fig 4.
Pin configuration DHVQFN20
5.2 Pin description
Table 2.
Pin description
Symbol
Pin
Description
OE1
1
output enable input (active LOW)
A0 to A7
2, 3, 4, 5, 6, 7, 8, 9
data input
GND
10
ground (0 V)
Y0 to Y7
18, 17, 16, 15, 14, 13, 12, 11
data output
OE2
19
output enable input (active LOW)
VCC
20
supply voltage
74AHCT541A
Product data sheet
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Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
3 of 14
74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
6. Functional description
Table 3.
Functional table[1]
Control
Input
Output
OE1
OE2
An
Yn
L
L
L
L
L
L
H
H
X
H
X
Z
H
X
X
Z
[1]
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
VCC
supply voltage
VI
input voltage
VO
output voltage
Conditions
active mode
Min
Max
Unit
0.5
+7.0
V
[1]
0.5
+7.0
V
[2][3]
0.5
VCC + 0.5
V
[2]
0.5
+7.0
V
power-down or 3-state mode
IIK
input clamping current
VI < 0 V
20
-
mA
IOK
output clamping current
VO < 0 V
20
-
mA
IO
output current
VO = 0 V to VCC
-
25
mA
ICC
supply current
-
75
mA
IGND
ground current
75
-
mA
Tstg
storage temperature
65
+150
C
-
500
mW
total power dissipation
Ptot
Tamb = 40 C to +125 C
[4]
[1]
The minimum input voltage ratings may be exceeded if the input current ratings are observed.
[2]
The output voltage ratings may be exceeded if the output current ratings are observed.
[3]
This value is limited to 7.0 V maximum.
[4]
For TSSOP20 package: above 100 C the value of Ptot derates linearly with 10 mW/K.
For DHVQFN20 package: above 110 C the value of Ptot derates linearly with 12.5 mW/K.
74AHCT541A
Product data sheet
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Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
8. Recommended operating conditions
Table 5.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
VCC
supply voltage
VI
input voltage
VO
output voltage
Tamb
ambient temperature
t/V
input transition rise and fall rate
Min
Max
Unit
4.5
5.5
V
0
5.5
V
active mode
0
VCC
V
power-down or 3-state mode
0
5.5
V
40
+125
C
-
20
VCC = 5.0 V 0.5 V
ns/V
9. Static characteristics
Table 6.
Static characteristics
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
25 C
Conditions
40 C to +85 C 40 C to +125 C Unit
Min
Typ
Max
Min
Max
Min
Max
VIH
HIGH-level
input voltage
VCC = 4.5 V to 5.5 V
2
-
-
2
-
2
-
V
VIL
LOW-level
input voltage
VCC = 4.5 V to 5.5 V
-
-
0.8
-
0.8
-
0.8
V
VOH
HIGH-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = 50 A
IO = 8 mA
VOL
LOW-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = 50 A
IO = 8 mA
4.4
4.5
-
4.4
-
4.4
-
V
3.94
-
-
3.8
-
3.7
-
V
-
0
0.1
-
0.1
-
0.1
V
-
-
0.36
-
0.44
-
0.55
V
IOZ
OFF-state
VCC = 5.5 V; VI = VIH or VIL;
output current VO = GND to 5.5 V
-
-
0.25
-
2.5
-
2.5
A
IOFF
power-off
leakage
current
VI or VO = GND to 5.5 V;
VCC = 0 V
-
-
0.5
-
5
-
5
A
II
input leakage
current
VI = VCC or GND;
VCC = 0 V to 5.5 V
-
-
0.1
-
1
-
1
A
ICC
supply current VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
-
-
2
-
20
-
20
A
ICC
additional
per input pin; VI = 3.4 V;
supply current IO = 0 A; other pins at VCC or
GND; VCC = 5.5 V
-
-
1.35
-
1.5
-
1.5
mA
74AHCT541A
Product data sheet
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Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
10. Dynamic characteristics
Table 7.
Dynamic characteristics
GND = 0 V. For test circuit see Figure 7.
Symbol Parameter
propagation
delay
tpd
enable time
ten
25 C
Conditions
40 C to +85 C 40 C to +125 C Unit
Min
Typ[1]
Max
Min
Max
Min
Max
CL = 15 pF
-
2.8
6.9
1
8
1
8
ns
CL = 50 pF
-
4.4
7.9
1
9
1
9
ns
-
3.9
11.3
1
13
1
13
ns
-
5.5
12.3
1
14
1
14
ns
CL = 15 pF
-
3.6
7.5
1
8
1
8
ns
CL = 50 pF
-
5.4
11.9
1
13.5
1
13.5
ns
An to Yn; see Figure 5
[2]
VCC = 4.5 V to 5.5 V
OEn to Yn; see Figure 6
VCC = 4.5 V to 5.5 V
CL = 15 pF
CL = 50 pF
disable time OEn to Yn; see Figure 6
tdis
[2]
VCC = 4.5 V to 5.5 V
tsk(o)
skew
VCC = 4.5 V to 5.5 V;
CL = 50 pF
-
-
1
-
1
-
1
ns
CI
input
capacitance
VI = VCC or GND;
VCC = 5 V
-
2
6
-
6
-
6
pF
CO
output
capacitance
VO = VCC or GND;
VCC = 5 V
-
5
-
-
-
-
-
pF
CPD
power
dissipation
capacitance
per buffer;
CL = 0 pF; f = 10 MHz;
VI = GND to VCC
-
9
-
-
-
-
-
pF
[3]
[1]
Typical values are measured at Tamb = 25 C and VCC = 5 V.
[2]
tpd is the same as tPLH and tPHL.
ten is the same as tPZL and tPZH.
tdis is the same as tPLZ and tPHZ.
[3]
CPD is used to determine the dynamic power dissipation PD (W).
PD = CPD VCC2 fi + (CL VCC2 fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in Volts.
74AHCT541A
Product data sheet
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Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
Table 8.
Noise characteristics
GND = 0 V. For test circuit see Figure 7.
Symbol
Parameter
Tamb = 25 C
Conditions
Unit
Min
Typ
Max
VCC = 5 V; CL = 50 pF
VOL(p)
LOW-level output voltage (peak)
-
0.5
1.5
V
VOL(v)
LOW-level output voltage (valley)
1.5
0.3
-
V
VOH(v)
HIGH-level output voltage (valley)
-
4.5
-
V
VIH(AC)
AC HIGH-level input voltage (dynamic)
2
-
-
V
VIL(AC)
AC LOW-level input voltage (dynamic)
-
-
0.8
V
11. Waveforms
9,
90
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W 3/+
92+
<QRXWSXW
90
92/
PQD
Measurement points are given in Table 9.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 5.
Propagation delay input (An) to output (Yn)
9,
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*1'
W 3/=
W 3=/
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/2:WR2))
2))WR/2:
90
9;
92/
W 3+=
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W 3=+
9<
RXWSXW
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2))WR+,*+
*1'
90
RXWSXWV
HQDEOHG
RXWSXWV
GLVDEOHG
RXWSXWV
HQDEOHG
PQD
Measurement points are given in Table 9.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 6.
enable and disable times
74AHCT541A
Product data sheet
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Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
Table 9.
Measurement points
Input
Output
VM
VM
VX
VY
1.5 V
0.5VCC
VOL + 0.3 V
VOH 0.3 V
9,
W:
QHJDWLYH
SXOVH
90
9
9,
WI
WU
WU
WI
SRVLWLYH
SXOVH
9
90
90
90
W:
9&&
9&&
9,
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92
5/
6
RSHQ
'87
&/
57
DDG
Test data is given in Table 10.
Definitions test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator
CL = Load capacitance including jig and probe capacitance
RL = Load resistor
S1 = Test selection switch
Fig 7.
Table 10.
Test circuit for measuring switching times
Test data
Input
VI
Load
tr, tf
GND to 3.0 V 3.0 ns
74AHCT541A
Product data sheet
S1 position
CL
RL
tPHL, tPLH
tPZH, tPHZ
tPZL, tPLZ
15 pF, 50 pF
1 k
open
GND
VCC
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
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74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
12. Package outline
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74AHCT541A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
9 of 14
74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
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Package outline SOT764-1 (DHVQFN20)
74AHCT541A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
10 of 14
74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
13. Abbreviations
Table 11.
Abbreviations
Acronym
Description
CDM
Charge Device Model
DUT
Device Under Test
ESD
ElectroStatic Discharge
HBM
Human Body Model
MM
Machine Model
TTL
Transistor-Transistor Logic
14. Revision history
Table 12.
Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
74AHCT541A v.5
20160613
Product data sheet
-
74AHCT541A v.4
-
74AHCT541A v.3
Modifications:
74AHCT541A v.4
Modifications:
74AHCT541A v.3
Modifications:
74AHCT541A v.2
Modifications:
74AHCT541A v.1
74AHCT541A
Product data sheet
•
Table 6: II limits corrected (errata).
20160419
•
Table 6: conditions for additional supply current (ICC) corrected.
20160224
•
Product data sheet
-
74AHCT541A v.2
-
74AHCT541A v.1
Table 7: CPD value corrected (errata).
20160127
•
Product data sheet
Product data sheet
Table 7: conditions CPD corrected (errata).
20151223
Product data sheet
-
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 13 June 2016
-
© NXP Semiconductors N.V. 2016. All rights reserved.
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NXP Semiconductors
Octal buffer/line driver; 3-state
15. Legal information
15.1 Data sheet status
Document status[1][2]
Product status[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
[1]
Please consult the most recently issued document before initiating or completing a design.
[2]
The term ‘short data sheet’ is explained in section “Definitions”.
[3]
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
15.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local NXP Semiconductors sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
NXP Semiconductors and its customer, unless NXP Semiconductors and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the NXP Semiconductors product is
deemed to offer functions and qualities beyond those described in the
Product data sheet.
15.3 Disclaimers
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, NXP Semiconductors does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. NXP Semiconductors takes no
responsibility for the content in this document if provided by an information
source outside of NXP Semiconductors.
In no event shall NXP Semiconductors be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, NXP Semiconductors’ aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of NXP Semiconductors.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
74AHCT541A
Product data sheet
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors and its suppliers accept no liability for
inclusion and/or use of NXP Semiconductors products in such equipment or
applications and therefore such inclusion and/or use is at the customer’s own
risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using NXP Semiconductors products, and NXP Semiconductors
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the NXP
Semiconductors product is suitable and fit for the customer’s applications and
products planned, as well as for the planned application and use of
customer’s third party customer(s). Customers should provide appropriate
design and operating safeguards to minimize the risks associated with their
applications and products.
NXP Semiconductors does not accept any liability related to any default,
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
third party customer(s). Customer is responsible for doing all necessary
testing for the customer’s applications and products using NXP
Semiconductors products in order to avoid a default of the applications and
the products or of the application or use by customer’s third party
customer(s). NXP does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
Terms and conditions of commercial sale — NXP Semiconductors
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nxp.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. NXP Semiconductors hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of NXP Semiconductors products by customer.
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 13 June 2016
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74AHCT541A
NXP Semiconductors
Octal buffer/line driver; 3-state
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific NXP Semiconductors product is automotive qualified,
the product is not suitable for automotive use. It is neither qualified nor tested
in accordance with automotive testing or application requirements. NXP
Semiconductors accepts no liability for inclusion and/or use of
non-automotive qualified products in automotive equipment or applications.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards, customer
(a) shall use the product without NXP Semiconductors’ warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
NXP Semiconductors’ specifications such use shall be solely at customer’s
own risk, and (c) customer fully indemnifies NXP Semiconductors for any
liability, damages or failed product claims resulting from customer design and
use of the product for automotive applications beyond NXP Semiconductors’
standard warranty and NXP Semiconductors’ product specifications.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
15.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
16. Contact information
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
74AHCT541A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 13 June 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
13 of 14
NXP Semiconductors
74AHCT541A
Octal buffer/line driver; 3-state
17. Contents
1
2
3
4
5
5.1
5.2
6
7
8
9
10
11
12
13
14
15
15.1
15.2
15.3
15.4
16
17
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Ordering information . . . . . . . . . . . . . . . . . . . . . 2
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
Pinning information . . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 3
Functional description . . . . . . . . . . . . . . . . . . . 4
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4
Recommended operating conditions. . . . . . . . 5
Static characteristics. . . . . . . . . . . . . . . . . . . . . 5
Dynamic characteristics . . . . . . . . . . . . . . . . . . 6
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 9
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Revision history . . . . . . . . . . . . . . . . . . . . . . . . 11
Legal information. . . . . . . . . . . . . . . . . . . . . . . 12
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 12
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Contact information. . . . . . . . . . . . . . . . . . . . . 13
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP Semiconductors N.V. 2016.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
Date of release: 13 June 2016
Document identifier: 74AHCT541A