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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

SN74LVCH244A-Q1

OCTAL BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCES492A – SEPTEMBER 2003 – REVISED DECEMBER 2005

•

•

Qualified for Automotive Applications

•

Customer-Specific Configuration Control Can

Be Supported Along With Major-Change

Approval

•

ESD Protection Exceeds 2000 V Per

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

•

Operates From 2 V to 3.6 V

•

Inputs Accept Voltages to 5.5 V

•

Max t

•

Typical V

<0.8 V at V

•

Typical V

>2 V at V

•

Supports Mixed-Mode Signal Operation on All

Ports (5-V Input/Output Voltage With

3.3-V V

•

I

Operation

•

Bus Hold on Data Inputs Eliminates the Need

for External Pullup/Pulldown Resistors

(1)

Contact factory for details. Q100 qualification data available

on request.

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

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

state.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors

with the bus-hold circuitry is not recommended.

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.

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

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

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

SOIC – DW

Reel of 2000

SN74LVCH244AQDWRQ1

LH244AQ

–40

°C to 125°C

TSSOP – PW

Reel of 2000

SN74LVCH244AQPWRQ1

LH244AQ

(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 © 2003–2005, 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.