SN74BCT2245

OCTAL TRANSCEIVER AND LINE/MOS DRIVER

WITH 3-STATE OUTPUTS

SCBS102C – FEBRUARY 1992 – REVISED MARCH 2003

1

POST OFFICE BOX 655303

Resistors, So No External Resistors

Are Required

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

description/ordering information

The SN74BCT2245 octal transceiver and line/

MOS driver is designed for asynchronous

communication between data buses.

The device allows data transmission 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 disable the devices so that

both buses are effectively isolated.

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

The B-port outputs, which are designed to source or sink up to 12 mA, include 33-

Ω series resistors to reduce

overshoot and undershoot.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP – N

Tube

SN74BCT2245N

SN74BCT2245N

SOIC

DW

Tube

SN74BCT2245DW

BCT2245

0

°C to 70°C

SOIC – DW

Tape and reel

SN74BCT2245DWR

BCT2245

SOP – NS

Tape and reel

SN74BCT2245NSR

BCT2245

SSOP – DB

Tape and reel

SN74BCT2245DBR

BA245

† 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

OPERATION

L

L

B data to A bus

L

H

A data to B bus

H

X

Isolation

DB, DW, N, OR NS PACKAGE

(TOP VIEW)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

DIR

A1

A2

A3

A4

A5

A6

A7

A8

GND

OE

B1

B2

B3

B4

B5

B6

B7

B8

Copyright

 2003, Texas Instruments Incorporated

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.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.