etcTI

SN74BCT245N Datasheet Preview

SN74BCT245N Datasheet

OCTAL BUS TRANSCEIVERS

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D 3-State Outputs Drive Bus Lines or Buffer

Memory Address Registers

D ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

description

These octal bus transceivers are designed for

asynchronous communication between data

buses. The devices transmit data from the A bus

to the B bus or from the B bus to the A bus,

depending upon the 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.

SN54BCT245, SN74BCT245

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS013H – SEPTEMBER 1998 – REVISED MAY 2002

SN54BCT245 . . . J OR W PACKAGE

SN74BCT245 . . . DB, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

DIR 1

A1 2

A2 3

A3 4

A4 5

A5 6

A6 7

A7 8

A8 9

GND 10

20 VCC

19 OE

18 B1

17 B2

16 B3

15 B4

14 B5

13 B6

12 B7

11 B8

SN54BCT245 . . . FK PACKAGE

(TOP VIEW)

3 2 1 20 19

A3 4

18 B1

A4 5

17 B2

A5 6

16 B3

A6 7

15 B4

A7 8

14 B5

9 10 11 12 13

ORDERING INFORMATION

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP – N

Tube

SN74BCT245N

0°C to 70°C

SOIC – DW

SOP – NS

Tube

Tape and reel

SN74BCT245DW

SN74BVT245DWR

SN74BCT245NSR

BCT245

SSOP – DB

Tape and reel SN74BCT245DBR

BT245

TSSOP – PW

Tape and reel SN74BCT245PWR

BT245

CDIP – J

Tube

SNJ54BCT245J

–55°C to 125°C CFP – W

Tube

SNJ54BCT245W

LCCC – FK

Tube

SNJ54BCT245FK

† 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.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

• POST OFFICE BOX 655303 DALLAS, TEXAS 75265

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

etcTI

SN74BCT245N Datasheet Preview

SN74BCT245N Datasheet

OCTAL BUS TRANSCEIVERS

No Preview Available !

SN54BCT245, SN74BCT245

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS013H – SEPTEMBER 1998 – REVISED MAY 2002

FUNCTION TABLE

INPUTS

OE DIR

OPERATION

B data to A bus

A data to B bus

Isolation

logic diagram (positive logic)

DIR 1

18 B1

To Seven Other Channels

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V

Input voltage range, VI: Control inputs (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V

I/O ports (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 5.5 V

Voltage range applied to any output in the disabled or power-off state, VO . . . . . . . . . . . . . . . . . –0.5 V to 7 V

Voltage range applied to any output in the high state, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC

Current into any output in the low state, IO: SN54BCT245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA

SN74BCT245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA

Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W

DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W

N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W

NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W

PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W

Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

2. The package thermal impedance is calculated in accordance with JESD 51-7.

• POST OFFICE BOX 655303 DALLAS, TEXAS 75265

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SN74BCT245N Datasheet

OCTAL BUS TRANSCEIVERS

SN74BCT245N Datasheet

OCTAL BUS TRANSCEIVERS

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