Texas Instruments SN74AHC244DWR Handleiding


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2 18 1Y1
1OE
1A1
4 16 1Y21A2
6 14 1Y3
1A3
8 12 1Y4
1A4
19
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
1
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
2Submit Documentation Feedback Copyright © 1995–2014, Texas Instruments Incorporated
Product Folder Links: SN54AHC244 SN74AHC244
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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
4
5
6
7
8
18
17
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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
Copyright © 1995–2014, Texas Instruments Incorporated Submit Documentation Feedback 3
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

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