ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
description/ordering information
The ’AHCT541 octal buffers/drivers are ideal for
driving bus lines or buffer 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 corresponding
outputs are in the high-impedance state. The
outputs provide noninverted data when they are
not in the high-impedance state.
T o ensure the high-impedance state during power
up or power down, OE
through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking
capability of the driver.
T
A
–
–55°C to 125°C
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
should be tied to V
PACKAGE
PDIP – NTubeSN74AHCT541NSN74AHCT541N
–
SOP – NSTape and reelSN74AHCT541NSRAHCT541
SSOP – DBTape and reelSN74AHCT541DBRHB541
SN74AHCT541 . . . DB, DGV, DW, N, NS, OR PW PACKAGE
CC
ORDERING INFORMA TION
†
TubeSN74AHCT541DW
Tape and reelSN74AHCT541DWR
TubeSN74AHCT541PW
Tape and reelSN74AHCT541PWR
ORDERABLE
PART NUMBER
SN54AHCT541 ...J OR W PACKAGE
(TOP VIEW)
1
OE1
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
GND
SN54AHCT541 . . . FK PACKAGE
10
(TOP VIEW)
A2A1OE1
A3
A4
A5
A6
A7
3212019
4
5
6
7
8
910111213
A8
Y8
20
19
18
17
16
15
14
13
12
11
V
CC
Y7
V
CC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
18
17
16
15
14
Y6OE2
Y1
Y2
Y3
Y4
Y5
GND
TOP-SIDE
MARKING
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.
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.
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
Copyright 2003, Texas Instruments Incorporated
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.
1
SN54AHCT541, SN74AHCT541
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS269O – DECEMBER 1995 – REVISED JULY 2003
logic diagram (positive logic)
FUNCTION TABLE
(each buffer/driver)
INPUTS
OE1OE2A
LLLL
LLH H
HXX Z
XHXZ
OUTPUT
Y
OE1
OE2
1
19
218
A1
To Seven Other Channels
Y1
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
Input voltage range, V
Output voltage range, V
Input clamp current, I
Output clamp current, I
Continuous output current, I
Continuous current through V
Package thermal impedance, θ
Storage temperature range, T
†
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.
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
TA = 25°CSN54AHCT541SN74AHCT541
MINTYPMAXMINMAXMINMAX
4.44.54.44.4
3.943.83.8
0.10.10.1
0.360.440.44
I
I
I
∆I
C
C
OH
OL
I
OZ
CC
i
o
CC
CC
IOH = –50 mA
IOH = –8 mA
IOL = 50 mA
IOL = 8 mA
VI = 5.5 V or GND0 V to 5.5 V±0.1±1*±1
VO = VCC or GND5.5 V±0.25±2.5±2.5
VI = VCC or GND,IO = 05.5 V44040
One input at 3.4 V ,
†
Other inputs at VCC or GND
VI = VCC or GND5 V21010pF
VO = VCC or GND5 V4pF
5.5 V1.351.51.5mA
CC
0V
CC
V
m
A
m
A
m
A
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3
SN54AHCT541, SN74AHCT541
PARAMETER
UNIT
AYC
15 pF
ns
OE
Y
C
15 pF
ns
OE
Y
C
15 pF
ns
AYC
50 pF
ns
OE
Y
C
50 pF
ns
OE
Y
C
50 pF
ns
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS269O – DECEMBER 1995 – REVISED JULY 2003
switching characteristics over recommended operating free-air temperature range,
V
= 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
CC
FROMTOLOAD
(INPUT)(OUTPUT)CAPACITANCE
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
t
sk(o)
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
** On products compliant to MIL-PRF-38535, this parameter does not apply.
CL = 50 pF1**1ns
p
=
L
p
=
L
p
=
L
p
=
L
p
=
L
p
=
L
TA = 25°CSN54AHCT541SN74AHCT541
MINTYPMAXMINMAXMINMAX
4.1*6*1*6.5*16.5
3.7*5.5*1*6.5*16.5
5*7*1*8*18
5*7*1*8*18
4.5*7*1*8*18
4.5*7*1*8*18
6.28.519.519.5
68.519.519.5
7.510112112
7.510112112
710112112
710112112
operating characteristics, V
C
Power dissipation capacitanceNo load,f = 1 MHz12pF
pd
= 5 V, TA = 25°C
CC
PARAMETERTEST CONDITIONSTYPUNIT
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
From Output
Under Test
(see Note A)
SN54AHCT541, SN74AHCT541
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS269O – DECEMBER 1995 – REVISED JULY 2003
PARAMETER MEASUREMENT INFORMATION
V
Test
Point
C
L
From Output
Under Test
(see Note A)
C
L
RL = 1 kΩ
S1
CC
Open
GND
TESTS1
t
PLH/tPHL
t
PLZ/tPZL
t
PHZ/tPZH
Open Drain
Open
V
CC
GND
V
CC
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
t
w
Input
Input
In-Phase
Output
Out-of-Phase
Output
INVERTING AND NONINVERTING OUTPUTS
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.
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.
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(RoHS)
(2)
Lead/Ball Finish MSL Peak Temp
CU NIPDAULevel-2-260C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-2-260C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-2-250C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-2-250C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-2-250C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-2-250C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-NC-NC-NC
CU NIPDAULevel-NC-NC-NC
CU NIPDAULevel-2-260C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-2-260C-1 YEAR/
Level-1-235C-UNLIM
CU NIPDAULevel-1-250C-UNLIM
CU NIPDAULevel-1-250C-UNLIM
CU NIPDAULevel-1-250C-UNLIM
CU NIPDAULevel-1-250C-UNLIM
CU NIPDAULevel-1-260C-UNLIM
(3)
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
8-Jun-2005
Addendum-Page 2
MECHANICAL DATA
MLCC006B – OCTOBER 1996
FK (S-CQCC-N**) LEADLESS CERAMIC CHIP CARRIER
28 TERMINAL SHOWN
A SQ
B SQ
19
20
21
22
23
24
25
1282627
12
131415161817
0.020 (0,51)
0.010 (0,25)
MIN
0.342
(8,69)
0.442
0.640
0.739
0.938
1.141
A
0.358
(9,09)
0.458
(11,63)
0.660
(16,76)
0.761
(19,32)(18,78)
0.962
(24,43)
1.165
(29,59)
NO. OF
TERMINALS
**
11
10
9
8
7
6
5
432
20
28
44
52
68
84
0.020 (0,51)
0.010 (0,25)
(11,23)
(16,26)
(23,83)
(28,99)
MINMAX
0.307
(7,80)
0.406
(10,31)
0.495
(12,58)
0.495
(12,58)
0.850
(21,6)
1.047
(26,6)
0.080 (2,03)
0.064 (1,63)
B
MAX
0.358
(9,09)
0.458
(11,63)
0.560
(14,22)
0.560
(14,22)
0.858
(21,8)
1.063
(27,0)
0.055 (1,40)
0.045 (1,14)
0.028 (0,71)
0.022 (0,54)
0.050 (1,27)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a metal lid.
D. The terminals are gold plated.
E. Falls within JEDEC MS-004
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
0.045 (1,14)
0.035 (0,89)
0.045 (1,14)
0.035 (0,89)
4040140/D 10/96
MECHANICAL DATA
MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001
DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE
28 PINS SHOWN
0,65
28
1
2,00 MAX
0,38
0,22
15
14
A
0,05 MIN
0,15
5,60
5,00
M
8,20
7,40
Seating Plane
0,10
0,25
0,09
0°–ā8°
Gage Plane
0,25
0,95
0,55
PINS **
DIM
A MAX
A MIN
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-150
14
6,50
6,50
5,905,90
2016
7,50
6,90
24
8,50
28
10,50
9,907,90
30
10,50
9,90
38
12,90
12,30
4040065 /E 12/01
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
MECHANICAL DATA
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999
PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,65
1,20 MAX
14
0,30
0,19
8
4,50
4,30
PINS **
7
Seating Plane
0,15
0,05
8
1
A
DIM
14
0,10
6,60
6,20
M
0,10
0,15 NOM
0°–8°
2016
Gage Plane
24
0,25
0,75
0,50
28
A MAX
A MIN
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
3,10
2,90
5,10
4,90
5,10
4,90
6,60
6,40
7,90
7,70
9,80
9,60
4040064/F 01/97
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty . Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
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Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
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Following are URLs where you can obtain information on other Texas Instruments products and application
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Interfaceinterface.ti.comDigital Controlwww.ti.com/digitalcontrol
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Mailing Address:Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright 2005, Texas Instruments Incorporated
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