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DESCRIPTION/ORDERING INFORMATION

DB, DW, OR PW PACKAGE

(TOP VIEW)

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

DIR

A1

A2

A3

A4

A5

A6

A7

A8

GND

GND

OE

B1

B2

B3

B4

B5

B6

B7

B8

GND

SN74LVC4245A

OCTAL BUS TRANSCEIVER AND 3.3-V TO 5-V SHIFTER

WITH 3-STATE OUTPUTS

SCAS375H – MARCH 1994 – REVISED MARCH 2005

•

Bidirectional Voltage Translator

•

5.5 V on A Port and 2.7 V to 3.6 V on B Port

•

•

Latch-Up Performance Exceeds 250 mA Per

JESD 17

•

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

This

8-bit

(octal)

noninverting

bus

transceiver

set at 5 V. This allows for translation from a 3.3-V to

a 5-V environment, and vice versa.

<br/>

The SN74LVC4245A 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. The control circuitry (DIR, OE) is powered by V

The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin '245 device

without board re-layout. The designer uses the data paths for pins 2–11 and 14–23 of the SN74LVC4245A to

align with the conventional '245 pinout.

ORDERING INFORMATION

ORDERABLE PART NUMBER

TOP-SIDE MARKING

Tube of 25

SN74LVC4245ADW

SOIC – DW

LVC4245A

Reel of 2000

SN74LVC4245ADWR

SSOP – DB

Reel of 2000

SN74LVC4245ADBR

LJ245A

–40

°C to 85°C

Tube of 60

SN74LVC4245APW

TSSOP – PW

Reel of 2000

SN74LVC4245APWR

LJ245A

Reel of 250

SN74LVC4245APWT

(1)

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

FUNCTION TABLE

INPUTS

OPERATION

OE

DIR

L

L

B data to A bus

L

H

A data to B bus

H

X

Isolation

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 © 1994–2005, 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.