Instrukcja obsługi Texas Instruments SN74AC241PWR
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SN74AC241PWR
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SN54AC241, SN74AC241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS513E − JUNE 1995 − REVISED OCTOBER 2003
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D2-V to 6-V VCC Operation
DInputs Accept Voltages to 6 V
DMax tpd of 7.5 ns at 5 V
description/ordering information
These octal buffers and line drivers are designed
specifically to improve the performance and
density of 3-state memory address drivers, clock
drivers, and bus-oriented receivers and
transmitters.
The ’AC241 devices are organized as two 4-bit
buffers/drivers with separate complementary
output-enable (1OE and 2OE) inputs. When 1OE
is low or 2OE is high, the device passes
noninverted data from the A inputs to the
Y outputs. When 1OE is high or 2OE is low, the
outputs are 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 and OE should be tied to
GND through a pulldown resistor; the minimum
value of the resistor is determined by the
current-sinking or the current-sourcing capability
of the driver.
ORDERING INFORMATION
TAPACKAGE†ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP − N Tube SN74AC241N SN74AC241N
SOIC DW
Tube SN74AC241DW
AC241
SOIC − DW Tape and reel SN74AC241DWR AC241
−40° °C to 85 C SOP − NS Tape and reel SN74AC241NSR AC241
40 C
to
85 C
SSOP − DB Tape and reel SN74AC241DBR AC241
TSSOP PW
Tube SN74AC241PW
AC241
TSSOP − PW Tape and reel SN74AC241PWR AC241
CDIP − J Tube SNJ54AC241J SNJ54AC241J
−55° °C to 125 C CFP − W Tube SNJ54AC241W SNJ54AC241W
55 C
to
125 C
LCCC − FK Tube SNJ54AC241FK SNJ54AC241FK
†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright © 2003, Texas Instruments Incorporated
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.
SN54AC241 . . . J OR W PACKAGE
SN54AC241 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
1OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
VCC
2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y4
2A1
3 2 1 20 19
9 10 12 1311
4
5
6
7
8
18
17
16
15
14
1Y1
2A4
1Y2
2A3
1Y3
1A2
2Y3
1A3
2Y2
1A4
SN54AC241 . . . FK PACKAGE
(TOP VIEW)
2Y4
1A1
1OE
1Y4
2A2 2OE
2Y1
GND
2A1 V
CC
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
SN54AC241, SN74AC241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS513E − JUNE 1995 − REVISED OCTOBER 2003
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
FUNCTION TABLES
INPUTS OUTPUT
1OE 1A
OUTPUT
1Y
L H H
L L L
H X Z
INPUTS OUTPUT
2OE 2A
OUTPUT
2Y
H H H
H L L
L X Z
logic diagram (positive logic)
1
2
4
6
812
14
16
18
1A1
1A2
1Y1
1Y2
1Y3
1Y4
1OE 19
11
13
15
17 3
5
7
9
2A2
2A3
2A4
2Y1
2Y2
2Y3
2Y4
2A1
2OE
1A3
1A4
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 VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, VO (see Note 1) −0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0 or VI > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC) ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through V
CC or GND ±200 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Note 2): DB package 70°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DW package 58°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 69°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NS package 60°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.
SN54AC241, SN74AC241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS513E − JUNE 1995 − REVISED OCTOBER 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54AC241 SN74AC241
UNIT
MIN MAX MIN MAX UNIT
VCC Supply voltage 2 6 2 6 V
VCC = 3 V 2.1 2.1
VIH High-level input voltage VCC = 4.5 V 3.15 3.15 V
VIH
High level
input
voltage
VCC = 5.5 V 3.85 3.85
V
VCC = 3 V 0.9 0.9
VIL Low-level input voltage VCC = 4.5V 1.35 1.35 V
VIL
Low level
input
voltage
VCC = 5.5 V 1.65 1.65
V
VIInput voltage 0 VCC 0 VCC V
VOOutput voltage 0 VCC 0 VCC V
VCC = 3 V −12 −12
IOH High-level output current VCC = 4.5 V −24 −24 mA
IOH
High level
output
current
VCC = 5.5 V −24 −24
mA
VCC = 3 V 12 12
IOL Low-level output current VCC = 4.5 V 24 24 mA
IOL
Low level
output
current
VCC = 5.5 V 24 24
mA
Δ Δt/ v 8 8 ns/VInput transition rise or fall rate
TAOperating free-air temperature −55 125 −40 85 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.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
Specyfikacje produktu
| Marka: | Texas Instruments |
| Kategoria: | Niesklasyfikowane |
| Model: | SN74AC241PWR |
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