SN74LVCZ245A

OCTAL BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCES275G – JUNE 1999 – REVISED AUGUST 2003

1

POST OFFICE BOX 655303

Insertion

All Ports (5-V Input/Output Voltage With

JESD 78, Class II

description/ordering information

The SN74LVCZ245A is designed for asynchronous communication between data buses. The device transmits

data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the

direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are

effectively isolated.

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.

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

disables the outputs, preventing damaging current backflow through the device when it is powered down. The

power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,

which prevents driver conflict.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

–40 C to 85 C

PDIP – N

Tube of 20

SN74LVCZ245AN

SN74LVCZ245AN

–40 C to 85 C

SOIC – DW

Tube of 25

SN74LVCZ245ADW

LVCZ245A

–40 C to 85 C

SOIC – DW

Reel of 2000

SN74LVCZ245ADWR

LVCZ245A

–40

°C to 85°C

SOP – NS

Reel of 2000

SN74LVCZ245ANSR

LVCZ245A

–40

°C to 85°C

SSOP – DB

Reel of 2000

SN74LVCZ245ADBR

CV245A

TSSOP – PW

Tube of 70

SN74LVCZ245APW

CV245A

TSSOP – PW

Reel of 2000

SN74LVCZ245APWR

CV245A

Reel of 250

SN74LVCZ245APWT

CV245A

† 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

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.

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2

3

4

5

6

7

8

9

10

20

19

18

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16

15

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13

12

11

DIR

A1

A2

A3

A4

A5

A6

A7

A8

GND

OE

B1

B2

B3

B4

B5

B6

B7

B8

DB, DW, N, NS, OR PW PACKAGE

(TOP VIEW)