Buffers, Drivers and Transceivers - Non-Inverting Buffers and Drivers - SN74LS244

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Datasheet

Octal Buffers and Line Drivers With 3-State Outputs (Rev. B) (PDF 824 KB)
11 Feb 2002

	SN54LS244	SN74LS244
Voltage Nodes(V)	5	5
Vcc range(V)	4.5 to 5.5	4.75 to 5.25
Logic	True	True
Input Level	TTL	TTL
Output Level	TTL	TTL
Output Drive(mA)		-15/24
No. of Outputs	8	8
tpd max(ns)		18
Static Current		36.5
Rating	Military	Catalog
Technology Family	LS	LS
	Samples	Samples
	Inventory	Inventory

Other qualified versions of SN74LS244

Version	Part Number	Definition
Military	SN54LS244	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

SN74LV4051A: 8-Channel Analog Multiplexer/Demultiplexer

TPS2550: Adjustable, Active Low, Constant-Current, Current-Limited Power-Distribution Switch

SN74AHC1G08: Single 2-Input Positive-AND Gate

Product Information

Features

3-State Outputs Drive Bus Lines or Buffer Memory Address Registers
PNP Inputs Reduce DC Loading
Hysteresis at Inputs Improves Noise Margins

Description

These octal buffers and line drivers are designed specifically to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The designer has a choice of selected combinations of inverting and noninverting outputs, symmetrical, active-low output-control (G)\ inputs, and complementary output-control (G and G\) inputs. These devices feature high fan-out, improved fan-in, and 400-mV noise margin. The SN74LS’ and SN74S’ devices can be used to drive terminated lines down to 133 .

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools	Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Footprints	Samples
SN74LS244DBR	ACTIVE	0 to 70	0.48 \| 1ku	SSOP (DB) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74LS244DBRE4	ACTIVE	0 to 70	0.48 \| 1ku	SSOP (DB) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74LS244DBRG4	ACTIVE	0 to 70	0.48 \| 1ku	SSOP (DB) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74LS244DW	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples
SN74LS244DWE4	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples
SN74LS244DWG4	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples
SN74LS244DWR	ACTIVE	0 to 70	0.48 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74LS244DWRE4	ACTIVE	0 to 70	0.48 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74LS244DWRG4	ACTIVE	0 to 70	0.48 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R
SN74LS244J	OBSOLETE	0 to 70		CDIP (J) \| 20			Not Available
SN74LS244N	ACTIVE	0 to 70	0.48 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Purchase Samples
SN74LS244N3	OBSOLETE	0 to 70		PDIP (N) \| 20	View		Not Available
SN74LS244NE4	ACTIVE	0 to 70	0.48 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Purchase Samples
SN74LS244NSR	ACTIVE	0 to 70	0.48 \| 1ku	SO (NS) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74LS244NSRE4	ACTIVE	0 to 70	0.48 \| 1ku	SO (NS) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74LS244NSRG4	ACTIVE	0 to 70	0.48 \| 1ku	SO (NS) \| 20	View	2000 \| LARGE T&R	Purchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:59 AM GMT, 22 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 15 WeeksSN74LS244DBR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksSN74LS244DBRE4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244DBRG4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244DW
Americas	Arrow	3
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	8
TI Lead Time*: 15 WeeksSN74LS244DWE4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244DWG4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244DWR
Americas	Arrow	>1k
Asia	WPI	>1k
TI Lead Time*: 15 WeeksSN74LS244DWRE4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244DWRG4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244N
Americas	Arrow	145
	Avnet	>1k
	Newark	291
	Rochester Electronics	>1k
Asia	WPI	125
Europe	Abacus Polar	>1k
	Arrow Northern Europe	>1k
	Arrow Southern Europe	>1k
	Spoerle	>1k
Call**SN74LS244N3
Americas	Rochester Electronics	>1k
TI Lead Time*: 15 WeeksSN74LS244NE4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244NSR
Worldwide	Mouser Electronics	6
TI Lead Time*: 15 WeeksSN74LS244NSRE4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74LS244NSRG4
Worldwide	Mouser Electronics	49
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
SN74LS244DBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DBRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244DWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244N	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
SN74LS244NE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
SN74LS244NSR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244NSRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS244NSRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for SN74LS244

Datasheet

Octal Buffers and Line Drivers With 3-State Outputs (Rev. B) (PDF, 824 KB)
11 Feb 2002

Application Notes

Input and Output Characteristics of Digital Integrated Circuits (HTM, 9 KB) 9367 views
01 Oct 1996 Read Abstract
Live Insertion (HTM, 8 KB) 2440 views
01 Oct 1996 Read Abstract
TI IBIS File Creation, Validation, and Distribution Processes (HTM, 9 KB) 3902 views
29 Aug 2002 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27231 views
24 May 2004 Read Abstract
Designing with the SN54/74LS123 (Rev. A) (HTM, 9 KB) 3058 views
01 Mar 1997 Read Abstract
Designing With Logic (Rev. C) (HTM, 8 KB) 9152 views
01 Jun 1997 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21673 views
28 May 2003 Read Abstract

View Application Notes for Non-Inverting Buffers and Drivers

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 47290 views
16 Jan 2007

Selection Guides

Logic Guide 2009 (Rev. Z) (PDF, 4263 KB) 90505 views
23 Jul 2009

More Literature

Logic Cross-Reference (Rev. A) (PDF, 2938 KB) 15408 views
07 Oct 2003

Simulation Models

IBIS Model
- SN74LS244 IBIS Model (Rev. A) (Multiple File Format) 217 views
  14 Jul 2004 Read Abstract

Customers Who Evaluated This Product Also Evaluated...
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TPS2550	Adjustable, Active Low, Constant-Current, Current-Limited Power-Distribution Switch	PCMCIA AND USB-USB POWER SWITCHES	TI customers also evaluated this product.
SN74AHC1G08	Single 2-Input Positive-AND Gate	LITTLE LOGIC-LL GATE	TI customers also evaluated this product.
SN74LVC16245A	16-Bit Bus Transceiver With 3-State Outputs	BUFFERS, DRIVERS AND TRANSCEIVERS-STANDARD TRANSCEIVERS	TI customers also evaluated this product.
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SN74LS244 Status: ACTIVE

Octal Buffers And Line Drivers With 3-State Outputs

Most Popular Links

Datasheet

Other qualified versions of SN74LS244

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Selection Guides

More Literature

Simulation Models

Support and Community

Customer Tags

Other Support

SN74LS244 Status: ACTIVE

Octal Buffers And Line Drivers With 3-State Outputs

Most Popular Links

Datasheet

Other qualified versions of SN74LS244

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

User Guides

Selection Guides

More Literature

Simulation Models

Related Products

Support and Community

Customer Tags

Other Support