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SN54AC241, SN74AC241

OCTAL BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCAS513E − JUNE 1995 − REVISED OCTOBER 2003

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

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

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.

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)

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

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

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

L H H

L L L

H X Z

INPUTS OUTPUT

2OE 2A

OUTPUT

H H H

H L L

L X Z

logic diagram (positive logic)

812

1A1

1A2

1Y1

1Y2

1Y3

1Y4

1OE 19

17 3

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

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

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

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

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

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.

Produktspezifikationen

Marke:	Texas Instruments
Kategorie:	Nicht kategorisiert
Modell:	SN74AC241PWR
Breite:	6.6 mm
Tiefe:	4.5 mm
Höhe:	1.05 mm
Betriebstemperatur:	-40 - 85 °C
Verpackungsbreite:	449 mm
Verpackungstiefe:	853 mm
Verpackungshöhe:	35 mm
Typ:	Logik-IC
Menge pro Packung:	2000 Stück(e)
Verpackungsart:	TSSOP
Temperaturbereich bei Lagerung:	-65 - 150 °C
Anzahl Pins:	20
Breite (mit Pins):	6.6 mm
Tiefe (mit Pins):	6.6 mm
Höhe (mit Pins):	1.2 mm