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FEATURES

DB, DGV, DW, NS, OR PW PACKAGE

(TOP VIEW)

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1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

DESCRIPTION/ORDERING INFORMATION

SN74LVC240A

OCTAL BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCAS293K – JANUARY 1993 – REVISED FEBRUARY 2005

•

Operates From 1.65 V to 3.6 V

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Inputs Accept Voltages to 5.5 V

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Supports Mixed-Mode Signal Operation on All

Ports (5-V Input/Output Voltage With

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Operation

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Latch-Up Performance Exceeds 250 mA Per

JESD 17

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ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

The SN74LVC240A is designed specifically to improve the performance and density of 3-state memory address

drivers, clock drivers, and bus-oriented receivers and transmitters.

This device is organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low,

the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the

high-impedance state.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in

a mixed 3.3-V/5-V system environment.

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

preventing damaging current backflow through the device when it is powered down.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

Tube of 25

SN74LVC240ADW

SOIC – DW

LVC240A

Reel of 2000

SN74LVC240ADWR

SOP – NS

Reel of 2000

SN74LVC240ANSR

LVC240A

SSOP – DB

Reel of 2000

SN74LVC240ADBR

LC240A

–40

°C to 85°C

Tube of 70

SN74LVC240APW

TSSOP – PW

Reel of 2000

SN74LVC240APWR

LC240A

Reel of 250

SN74LVC240APWT

TVSOP – DGV

Reel of 2000

SN74LVC240ADGVR

LC240A

(1)

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.

PRODUCTION DATA information is current as of publication date.

Copyright © 1993–2005, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.