Texas Instruments SN74AHC244DWR Handleiding

Texas Instruments Niet gecategoriseerd SN74AHC244DWR

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Pagina 1/35

2 18 1Y1

1OE

1A1

4 16 1Y21A2

6 14 1Y3

1A3

8 12 1Y4

1A4

11 9 2Y1

2OE

2A1

13 7 2Y22A2

15 5 2Y3

2A3

17 3 2Y4

2A4

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SN54AHC244

SN74AHC244

SCLS226K – OCTO BER 1995 – REVISED JULY 2014

SNx4AHC244 Octal Buers/Drivers With 3-State Outputs

1 Features 3 Description

These octal buers and drivers are designed

1 • Operating Range 2-V to 5.5-V VCC specically to improve the performance and density of

• Latch-Up Performance Exceeds 250 mA Per 3-state memory-address drivers, clock drivers, and

JESD 17 bus-oriented receivers and transmitters.

• On Products Compliant to MIL-PRF-38535,

Device Information(1)

All Parameters Are Tested Unless Otherwise

Noted. On All Other Products, Production PART NUMBER PACKAGE BODY SIZE ( NOM)

Processing Does Not Necessarily Include Testing SSOP (20) 7.20 mm × 5.30 mm

of All Parameters. SOIC (20) 12.8 0 mm × 7.50 mm

SNx4AHC244 PDIP (20) 24.3 3 mm × 6.35 mm

2 Applications TSSOP (20) 12.6 0 mm × 5.30 mm

• Network Switches VQFN (20) 4.50 mm × 3.50 mm

• Power Infrastructures (1) For all ava ilable packages, see the orderable addendum at

the end of the data sheet.

• PCs and Notebooks

• Wearable Health and Fitness Devices

• Tests and Measurements

4 Simpli ed Schematic

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

inte llectual property matters and other important discl aimers. PRODUCTION DATA.

SN54AHC244

SN74AHC244

SCLS226K – OCTO BER 1995 – REVISED JULY 2014

www.ti.com

Table of Contents

1 Features 9 Detailed Description.................................................................. 1.............................................. 9

9.1 Overview ................................................................... 9

2 Applications ........................................................... 1

9.2 Functi on al Block Diagram ......................................... 9

3 Description ............................................................. 1

9.3 Feature Desc rip tio n................................................... 9

4 Simplied Schematic............................................. 1

9.4 Device Functional Modes.......................................... 9

5 Revision History..................................................... 2 10 Application and Implementation........................ 10

6 Pin Conguration and Functions ......................... 3 10.1 Application Information.......................................... 10

7 Specications......................................................... 4 10.2 Typical Application ............................................... 10

7.1 Absolute Maximum Rating s ...................................... 4 11 Power Supply Recommendations ..................... 11

7.2 Handling Ratings....................................................... 4 12 Layout................................................................... 11

7.3 Recommended Operating Conditions ....................... 4

12.1 Layout Guidelines ................................................. 11

7.4 Thermal Information.................................................. 5

12.2 Layout Example .................................................... 11

7.5 Electrical Characteristics........................................... 5

13 Device and Documentation Support ................. 12

7.6 Switching Characteristics.......................................... 6

13.1 Related Links ........................................................ 12

7.7 Switching Characteristics.......................................... 6

13 .2 Trademarks ........................................................... 12

7.8 Noise Characteristics ................................................ 7

13.3 Electrostatic Discharge Caution..................... ....... 12

7.9 Operating Characteristics.......................................... 7

13 .4 Gloss ary ................................................................ 12

7.10 Typical Characteristics ............................................ 7

14 Mec hanica l, Packaging, and Orderable

8 Parameter Measurement Information .................. 8 Information ........................................................... 12

5 Revision History

NOTE: Page numbers for previous revisions may dier from page numbers in the current version.

Changes from Revision J (July 2003) to Revision K Page

• Updated document to ne w TI data sheet fo rmat. ................................................................................................................... 1

• Removed Ordering Information table. .................................................................................................................................... 1

• Added Military Disclaimer to Features list. ............................................................................................................................ 1

• Added Applications. ............................................................................................................................................................... 1

• Added Pin Functions table...................................................................................................................................................... 3

• Added Handling Ratings table. ............................................................................................................................................... 4

• Changed MAX ambient temperature in Recommended Operating Conditions table. ........................................................... 4

• Added Thermal Information table. .......................................................................................................................................... 5

• Added Typical Characteristics. .............................................................................................................................................. 7

Product Folder Links: SN54AHC244 SN74AHC244

1OE

1A1

2Y4

1A2

2Y3

1A3

2Y2

1A4

2Y1

GND

VCC

2OE

1Y1

2A4

1Y2

2A3

1Y3

2A2

1Y4

2A1

SN54AHC244 . . . J OR W PACKAGE

SN74AHC244 . . . DB, DGV, DW, N, NS, OR PW PACKAGE

(TOP VIEW)

3 2 1 20 19

9 10 11 12 13

1Y1

2A4

1Y2

2A3

1Y3

1A2

2Y3

1A3

2Y2

1A4

SN54AHC244 . . . FK PACKAGE

(TOP VIEW)

2Y4

1A1

1OE

1Y4

2A2 2OE

2Y1

GND

2A1

VCC

SN54AHC244

SN74AHC244

www.ti.com

SCLS226K –OCTOBER 1995 –REVISED JULY 2014

6 Pin Conguration and Functions

Pin Functions

PIN I/O DESCRIPTION

NO. NAME

1 1OE I Output Enable 1

2 1A1 I 1A1 Input

3 2Y4 O 2Y4 Output

4 1A2 I 1A2 Input

5 2Y3 O 2Y3 Output

6 1A3 I 1A3 Input

7 2Y2 O 2Y2 Output

8 1A4 I 1A4 Input

9 2Y1 O 2Y1 Output

10 GND — Ground pin

11 2A1 I 2A1 Input

12 1Y4 O 1Y4 Output

13 2A2 I 2A2 Input

14 1Y3 O 1Y3 Output

15 2A3 I 2A3 Input

16 1Y2 O 1Y2 Output

17 2A4 I 2A4 Input

18 1Y1 O 1Y1 Output

19 2OE I Output Enable 2

20 VCC — Power Pin

Product Folder Links: SN54AHC244 SN74AHC244

Product specificaties

Merk:	Texas Instruments
Categorie:	Niet gecategoriseerd
Model:	SN74AHC244DWR
Breedte:	13 mm
Diepte:	7.6 mm
Hoogte:	2.35 mm
Breedte verpakking:	367 mm
Diepte verpakking:	367 mm
Hoogte verpakking:	45 mm
Soort:	Logic IC
Type verpakking:	SOIC
Aantal per verpakking:	2000 stuk(s)
Temperatuur bij opslag:	-65 - 150 °C
Bedrijfstemperatuur (T-T):	-40 - 125 °C
Aantal pinnen:	20
Breedte (met pennen):	13 mm
Diepte (met pennen):	10.63 mm
Hoogte (met pennen):	2.65 mm