TEXAS INSTRUMENTS SN54HC245, SN74HC245 Technical data

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SOIC – DW

HC245

–40°C to 85°C

TSSOP – PW

HC245

–55°C to 125°C

SN54HC245, SN74HC245

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003

Wide Operating Voltage Range of 2 V to 6 V

High-Current 3-State Outputs Drive Bus Lines Directly or Up To 15 LSTTL Loads

Low Power Consumption, 80-µA Max I

SN54HC245 ...J OR W PACKAGE

SN74HC245 . . . DB, DW, N, NS, OR PW PACKAGE

DIR

A1 A2 A3 A4 A5 A6 A7 A8

GND

(TOP VIEW)

V OE B1 B2 B3 B4 B5 B6 B7 B8

Typical t

±6-mA Output Drive at 5 V

Low Input Current of 1 µA Max

= 12 ns

SN54HC245 ...FK PACKAGE

A3 A4 A5 A6 A7

(TOP VIEW)

A2A1DIR

3212019

4 5 6 7 8

910111213

18 17 16 15 14

GND

B1 B2 B3 B4 B5

description/ordering information

These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The devices allow 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 be used to disable the device so that the buses are effectively isolated.

ORDERING INFORMA TION

PDIP – N Tube of 20 SN74HC245N SN74HC245N

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.

SOP – NS Reel of 2000 SN74HC245NSR HC245

SSOP – DB Reel of 2000 SN74HC245DBR HC245

CDIP – J Tube of 20 SNJ54HC245J SNJ54HC245J CFP – W T ube of 85 SNJ54HC245W SNJ54HC245W LCCC – FK Tube of 55 SNJ54HC245FK SNJ54HC245FK

PACKAGE

†

Tube of 25 SN74HC245DW Reel of 2000 SN74HC245DWR

Tube of 70 SN74HC245PW Reel of 2000 SN74HC245PWR Reel of 250 SN74HC245PWT

ORDERABLE

PART NUMBER

TOP-SIDE MARKING

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications o 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.

SN54HC245, SN74HC245

OPERATION

OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003

logic diagram (positive logic)

DIR

FUNCTION TABLE

INPUTS

OE DIR

L L B data to A bus L H A data to B bus

H X Isolation

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 clamp current, I Output clamp current, I Continuous output current, I Continuous current through V Package thermal impedance, θ

Storage temperature range, T

†

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.

(VI < 0 or VI > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(VO < 0 or VO > VCC) (see Note 1) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(VO = 0 to VCC) ±35 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

or GND ±70 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

†

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

UNIT

VIHHigh-level input voltage

VILLow-level input voltage

Input transition rise/fall time

PARAMETER

TEST CONDITIONS

UNIT

IOH = –20 µA

VOHVI = VIH or V

IIH IL

IOL = 20 µA

VOLVI = VIH or V

IIH IL

SN54HC245, SN74HC245

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003

recommended operating conditions (see Note 3)

SN54HC245 SN74HC245

MIN NOM MAX MIN NOM MAX

V V

∆t/∆

NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Supply voltage 2 5 6 2 5 6 V

VCC = 2 V 1.5 1.5 VCC = 4.5 V 3.15 3.15 VCC = 6 V 4.2 4.2 VCC = 2 V 0.5 0.5 VCC = 4.5 V 1.35 1.35 VCC = 6 V 1.8 1.8

Input voltage 0 V

Output voltage 0 V

VCC = 2 V 1000 1000 VCC = 4.5 V 500 500 VCC = 6 V 400 400

Operating free-air temperature –55 125 –40 85 °C

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

CC CC

0 V 0 V

CC CC

V V

electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)

TA = 25°C SN54HC245 SN74HC245

MIN TYP MAX MIN MAX MIN MAX

2 V 1.9 1.998 1.9 1.9

4.5 V 4.4 4.499 4.4 4.4 6 V 5.9 5.999 5.9 5.9

IOH = –6 mA 4.5 V 3.98 4.3 3.7 3.84 IOH = –7.8 mA 6 V 5.48 5.8 5.2 5.34

2 V 0.002 0.1 0.1 0.1

4.5 V 0.001 0.1 0.1 0.1 6 V 0.001 0.1 0.1 0.1

IOL = 6 mA 4.5 V 0.17 0.26 0.4 0.33 IOL = 7.8 mA 6 V 0.15 0.26 0.4 0.33

DIR or OE VI = VCC or 0 6 V ±0.1 ±100 ±1000 ±1000 nA

A or B VO = VCC or 0 6 V ±0.01 ±0.5 ±10 ±5 µA

DIR or OE 2 V to 6 V 3 10 10 10 pF

VI = VCC or 0, IO = 0 6 V 8 160 80 µA

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54HC245, SN74HC245

FROM

PARAMETER

FROM

UNIT

tpdA or B

B or A

tenOE

A or B

dis

A or B

dis

ttA or B

FROM

PARAMETER

FROM

UNIT

tpdA or B

B or A

tenOE

A or B

ttA or B

OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003

switching characteristics over recommended operating free-air temperature range, CL = 50 pF (unless otherwise noted) (see Figure 1)

TA = 25°C SN54HC245 SN74HC245

(INPUT)

switching characteristics over recommended operating free-air temperature range, CL = 150 pF (unless otherwise noted) (see Figure 1)

(INPUT)

(OUTPUT)

MIN TYP MAX MIN MAX MIN MAX

2 V 40 105 160 130

4.5 V 15 21 32 26 6 V 12 18 27 22 2 V 125 230 340 290

4.5 V 23 46 68 58 6 V 20 39 58 49 2 V 74 200 300 250

4.5 V 25 40 60 50 6 V 21 34 51 43 2 V 20 60 90 75

4.5 V 8 12 18 15 6 V 6 10 15 13

TA = 25°C SN54HC245 SN74HC245

MIN TYP MAX MIN MAX MIN MAX

2 V 54 135 200 170

4.5 V 18 27 40 34 6 V 15 23 34 29 2 V 150 270 405 335

4.5 V 31 54 81 67 6 V 25 46 69 56 2 V 45 210 315 265

4.5 V 17 42 63 53 6 V 13 36 53 45

operating characteristics, TA = 25°C

PARAMETER TEST CONDITIONS TYP UNIT

Power dissipation capacitance per transceiver No load 40 pF

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

SN54HC245, SN74HC245

OCTAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCLS131D – DECEMBER 1982 – REVISED AUGUST 2003

PARAMETER MEASUREMENT INFORMATION

50%

PHL

PLH

50%50%

10%10%

Test

From Output

Under Test

(see Note A)

Input

In-Phase

Output

Out-of-Phase

Output

PROPAGATION DELAY AND OUTPUT TRANSITION TIMES

Input

50%

INPUT RISE AND FALL TIMES

Point

LOAD CIRCUIT

PLH

PHL

VOLTAGE WAVEFORMS

90% 90%

VOLTAGE WAVEFORM

90% 90%

50% 50%

10% 10%

0 V

50%50%

PLZ

10%

PHZ

90%

0 V

≈V

≈0 V

PARAMETER C

Output

Control

Output

PZH

PZL

PHZ

PLZ

PZL

PZH

dis

tpd or t

0 V

10%10%

90%90%

(Low-Level

Enabling)

Waveform 1

(See Note B)

Waveform 2

(See Note B)

ENABLE AND DISABLE TIMES FOR 3-STATE OUTPUTS

1 kΩ

50%

VOLTAGE WAVEFORMS

50 pF

150 pF

50 pF

150 pF

≈V

50%

Open Closed

Closed Open

Open Closed

Closed Open

Open Open––

50%

NOTES: A. CL includes probe and test-fixture capacitance.

B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.

Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.

C. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following

characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns. D. The outputs are measured one at a time with one input transition per measurement. E. t

F. t

G. t

PLZ PZL PLH

and t and t

and t

are the same as t

PHZ

are the same as ten.

PZH

are the same as tpd.

PHL

dis

Figure 1. Load Circuit and Voltage Waveforms

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PACKAGE OPTION ADDENDUM

www.ti.com

PACKAGING INFORMATION

Orderable Device Status

5962-8408501VRA ACTIVE CDIP J 20 1 TBD Call TI Level-NC-NC-NC 5962-8408501VSA ACTIVE CFP W 20 1 TBD Call TI Level-NC-NC-NC

84085012A ACTIVE LCCC FK 20 1 TBD Call TI Level-NC-NC-NC 8408501RA ACTIVE CDIP J 20 1 TBD Call TI Level-NC-NC-NC 8408501SA ACTIVE CFP W 20 1 TBD Call TI Level-NC-NC-NC

JM38510/65503BRA ACTIVE CDIP J 20 1 TBD Call TI Level-NC-NC-NC JM38510/65503BSA ACTIVE CFP W 20 1 TBD Call TI Level-NC-NC-NC

SN54HC245J ACTIVE CDIP J 20 1 TBD Call TI Level-NC-NC-NC

SN74HC245DBLE OBSOLETE SSOP DB 20 TBD Call TI Call TI

SN74HC245DBR ACTIVE SSOP DB 20 2000 Pb-Free

SN74HC245DBRE4 ACTIVE SSOP DB 20 2000 Pb-Free

SN74HC245DW ACTIVE SOIC DW 20 25 Pb-Free

SN74HC245DWE4 ACTIVE SOIC DW 20 25 Pb-Free

SN74HC245DWR ACTIVE SOIC DW 20 2000 Green(RoHS &

SN74HC245DWRE4 ACTIVE SOIC DW 20 2000 Green (RoHS &

SN74HC245N ACTIVE PDIP N 20 20 Pb-Free

SN74HC245N3 OBSOLETE PDIP N 20 TBD Call TI Call TI

SN74HC245NSG4 ACTIVE SO NS 20 40 Green (RoHS &

SN74HC245NSR ACTIVE SO NS 20 2000 Pb-Free

SN74HC245NSRE4 ACTIVE SO NS 20 2000 Pb-Free

SN74HC245NSRG4 ACTIVE SO NS 20 2000 Green (RoHS &

SN74HC245PW ACTIVE TSSOP PW 20 70 Pb-Free

SN74HC245PWE4 ACTIVE TSSOP PW 20 70 Pb-Free

SN74HC245PWLE OBSOLETE TSSOP PW 20 TBD Call TI Call TI

SN74HC245PWR ACTIVE TSSOP PW 20 2000 Pb-Free

SN74HC245PWRE4 ACTIVE TSSOP PW 20 2000 Pb-Free

SN74HC245PWRG4 ACTIVE TSSOP PW 20 2000 Green (RoHS &

SN74HC245PWT ACTIVE TSSOP PW 20 250 Pb-Free

SN74HC245PWTE4 ACTIVE TSSOP PW 20 250 Pb-Free

(1)

Package

Type

Package Drawing

Pins Package

Qty

Eco Plan

no Sb/Br)

(RoHS)

(2)

Lead/Ball Finish MSL Peak Temp

CU NIPDAU Level-2-260C-1 YEAR/

CU NIPDAU Level-2-250C-1 YEAR/

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-NC-NC-NC

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-2-260C-1 YEAR/

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-250C-UNLIM

CU NIPDAU Level-1-260C-UNLIM

CU NIPDAU Level-1-250C-UNLIM

Level-1-235C-UNLIM

8-Jun-2005

(3)

Addendum-Page 1

PACKAGE OPTION ADDENDUM

www.ti.com

Orderable Device Status

(1)

Package

Type

Package Drawing

Pins Package

Qty

Eco Plan

(2)

Lead/Ball Finish MSL Peak Temp

8-Jun-2005

(3)

SNJ54HC245FK ACTIVE LCCC FK 20 1 TBD Call TI Level-NC-NC-NC

SNJ54HC245J ACTIVE CDIP J 20 1 TBD Call TI Level-NC-NC-NC

SNJ54HC245W ACTIVE CFP W 20 1 TBD Call TI Level-NC-NC-NC

(1)

The marketing status values are defined as follows:

ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in

a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.

(2)

Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check

http://www.ti.com/productcontent for the latest availability information and additional product content details.

TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements

for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)

(3)

MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder

temperature.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.

Addendum-Page 2

MECHANICAL DATA

MLCC006B – OCTOBER 1996

FK (S-CQCC-N**) LEADLESS CERAMIC CHIP CARRIER

28 TERMINAL SHOWN

A SQ

B SQ

12826 27

1314151618 17

0.020 (0,51)

0.010 (0,25)

MIN

0.342 (8,69)

0.442

0.640

0.739

0.938

1.141

0.358 (9,09)

0.458

(11,63)

0.660

(16,76)

0.761

(19,32)(18,78)

0.962

(24,43)

1.165

(29,59)

NO. OF

TERMINALS

432

0.020 (0,51)

0.010 (0,25)

(11,23)

(16,26)

(23,83)

(28,99)

MINMAX

0.307 (7,80)

0.406

(10,31)

0.495

(12,58)

0.495

(12,58)

0.850 (21,6)

1.047 (26,6)

0.080 (2,03)

0.064 (1,63)

MAX

0.358 (9,09)

0.458

(11,63)

0.560

(14,22)

0.560

(14,22)

0.858 (21,8)

1.063 (27,0)

0.055 (1,40)

0.045 (1,14)

0.028 (0,71)

0.022 (0,54)

0.050 (1,27)

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice. C. This package can be hermetically sealed with a metal lid. D. The terminals are gold plated. E. Falls within JEDEC MS-004

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

0.045 (1,14)

0.035 (0,89)

0.045 (1,14)

0.035 (0,89)

4040140/D 10/96

MECHANICAL DATA

MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001

DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE

28 PINS SHOWN

0,65

2,00 MAX

0,38 0,22

0,05 MIN

0,15

5,60 5,00

8,20 7,40

Seating Plane

0,10

0,25 0,09

0°–ā8°

Gage Plane

0,25

0,95 0,55

PINS **

DIM

A MAX

A MIN

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion not to exceed 0,15. D. Falls within JEDEC MO-150

6,50

5,905,90

2016

7,50

6,90

8,50

10,50

9,907,90

10,50

9,90

12,90

12,30

4040065 /E 12/01

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

MECHANICAL DATA

MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999

PW (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE

14 PINS SHOWN

0,65

1,20 MAX

0,30

0,19

4,50 4,30

PINS **

Seating Plane

0,15 0,05

DIM

0,10

6,60 6,20

0,10

0,15 NOM

0°–8°

2016

Gage Plane

0,25

0,75 0,50

A MAX

A MIN

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusion not to exceed 0,15. D. Falls within JEDEC MO-153

3,10

2,90

5,10

4,90

5,10

4,90

6,60

6,40

7,90

7,70

9,80

9,60

4040064/F 01/97

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty . Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.

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TEXAS INSTRUMENTS SN54HC245, SN74HC245 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual