Instrukcja obsługi Texas Instruments SN74ALS541DWR
Texas Instruments
Niesklasyfikowane
SN74ALS541DWR
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SN54ALS541, SN74ALS540, SN74ALS541
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SDAS025D – APRIL 1982 – REVISED MARCH 2002
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
3-State Outputs Drive Bus Lines or Buer
Memory Address Registers
pnp Inputs Reduce dc Loading
Data Flowthrough Pinout (All Inputs on
Opposite Side From Outputs)
description
These octal buers and line drivers are designed
to have the performance of the popular
SN54ALS240A/SN74ALS240A series and, at
the same time, oer a pinout with inputs and
outputs on opposite sides of the package. This
arrangement greatly facilitates printed circuit
board layout.
The 3-state control gate is a 2-input NOR gate
such that, if either output-enable (OE1 or OE2)
input is high, all eight outputs are in the
high-impedance state.
The SN74ALS540 provides inverted data. The
’ALS541 provide true data at the outputs.
The -1 versions of SN74ALS540 and
SN74ALS541 are identical to the standard
versions, except that the recommended
maximum IOL is increased to 48 mA. There is no
-1 version of the SN54ALS541.
Copyright 2002, 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.
SN54ALS541 . . . J PACKAGE
SN74ALS540 . . . DW, N, OR NS PACKAGE
SN74ALS541 . . . DB, DW, N, OR NS PACKAGE
(TOP VIEW)
SN54ALS541 . . . FK PACKAGE
(TOP VIEW)
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
3 2 1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
Y1
Y2
Y3
Y4
Y5
A3
A4
A5
A6
A7
A2
A1
OE1
Y7
Y6 OE2
A8
GND
Y8
V
CC
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.
SN54ALS541, SN74ALS540, SN74ALS541
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SDAS025D – – APRIL 1982 REVISED MARCH 2002
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ORDERING INFORMATION
TAPACKAGE†ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SN74ALS540N SN74ALS540N
PDIP N
Tube
SN74ALS540-1N SN74ALS540-1N
PDIP
–
N
Tube
SN74ALS541N SN74ALS541N
SN74ALS541-1N SN74ALS541-1N
Tube SN74ALS540DW
ALS540
Tape and reel SN74ALS540DWR
ALS540
Tube SN74ALS540-1DW ALS540-1
SOIC – DW Tube SN74ALS541DW
ALS541
0 C°C to 70°Tape and reel SN74ALS541DWR
ALS541
Tube SN74ALS541-1DW
ALS541 1
Tape and reel SN74ALS541-1DWR
ALS541
-
1
Tape and reel SN74ALS540NSR ALS540
SOP NS
SN74ALS540-1NSR ALS540-1
SOP
–
NS
Tape and reel SN74ALS541NSR ALS541
SN74ALS541-1NSR ALS541-1
SSOP DB
Ta
p
e and reel
SN74ALS541DBR G541
SSOP
–
DB
Tape
and
reel
SN74ALS541-1DBR G541-1
55
°
C to 125
°
C
CDIP Tube SNJ54ALS541J SNJ54ALS541J– J
–
55 C°
to
125 C°
LCCC Tube SNJ54ALS541FK SNJ54ALS541FK– FK
†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
logic diagrams (positive logic)
19
2
1
18
OE1
OE2
A1 Y1
To Seven Other Channels
SN74ALS540 ALS541′
19
2
1
18
OE1
OE2
A1 Y1
To Seven Other Channels
SN54ALS541, SN74ALS540, SN74ALS541
OCTAL BUFFERS AND LINE DRIVERS
WITH 3-STATE OUTPUTS
SDAS025D – – APRIL 1982 REVISED MARCH 2002
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted) †
Supply voltage, VCC 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage applied to a disabled 3-state output 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Note 1): DB package 70°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DW package 58°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 69°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package 60°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg 65 C–°C to 150°. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†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.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions
SN54ALS541 SN74ALS540
SN74ALS541 UNIT
MIN NOM MAX MIN NOM MAX
VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V
VIH High-level input voltage 2 2 V
VIL Low-level input voltage 0.7 0.8 V
IOH High-level output current – –12 15 mA
IOL
Low level out
p
ut current
12 24
mA
I
OL
Low
-
level
output
current
48†
mA
TAOperating free-air temperature –55 125 0 70 C°
†Applies only to the -1 version and only if V
CC is between 4.75 V and 5.25 V
Specyfikacje produktu
| Marka: | Texas Instruments |
| Kategoria: | Niesklasyfikowane |
| Model: | SN74ALS541DWR |
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