Gates - NAND Gates - SN74LS20

Most Popular Links

Samples
Pricing/Packaging
Technical Documents

Features
Related Products
Tools & Software

Inventory
Symbols/Footprints
Quality & Pb-Free Data

Application Notes
Reference Designs
Support & Community

Datasheet

Dual 4-Input Positive-NAND Gates (PDF 45760 KB)
01 Mar 1988

	SN54LS20	SN74LS20
Voltage Nodes(V)	5	5
Vcc range(V)	4.5 to 5.5	4.75 to 5.25
Input Level	TTL	TTL
Output Level	TTL	TTL
Output Drive(mA)		-0.4/8
No. of Gates	2	2
Static Current		1.5
tpd max(ns)		15
Rating	Military	Catalog
Technology Family	LS	LS
	Samples	Samples
	Inventory	Inventory

Other qualified versions of SN74LS20

Version	Part Number	Definition
Military	SN54LS20	QML certified for Military and Defense Applications

Customers Who Evaluated This Product Also Evaluated

SN74LS10: Triple 3-input positive-NAND gates
SN74LS00: Quad 2-input positive-NAND gates
SN74LS30: 8-input positive-NAND gates
SN74LS138: 3-line to 8-line decoder / demultiplexer
SN74LS02: Quad 2-input positive-NOR gates
SN74LS04: Hex inverters

Product Information

Features

Package Options Include Plastic “Small Outline" Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs
Dependable Texas Instruments Quality and Reliability

Description

These devices contain two independent 4-input NAND gates.

The SN5420, SN54LS20, and SN54S20 are characterized for operation over the full military range of -55°C to 125°C. The SN7420, SN74LS20, and SN74S20 are characterized for operation from 0°C to 70°C.

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
SN74LS20D	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (D) \| 14	View	50 \| TUBE	Purchase Samples
SN74LS20DE4	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (D) \| 14	View	50 \| TUBE	Purchase Samples
SN74LS20DG4	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (D) \| 14	View	50 \| TUBE	Purchase Samples
SN74LS20DR	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (D) \| 14	View	2500 \| LARGE T&R	Purchase Samples
SN74LS20DRE4	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (D) \| 14	View	2500 \| LARGE T&R	Purchase Samples
SN74LS20DRG4	ACTIVE	0 to 70	0.53 \| 1ku	SOIC (D) \| 14	View	2500 \| LARGE T&R	Purchase Samples
SN74LS20J	OBSOLETE	0 to 70		CDIP (J) \| 14			Not Available
SN74LS20N	ACTIVE	0 to 70	0.53 \| 1ku	PDIP (N) \| 14	View	25 \| TUBE	Contact TI Distributor or Sales Office
SN74LS20N3	OBSOLETE	0 to 70		PDIP (N) \| 14	View		Not Available
SN74LS20NE4	ACTIVE	0 to 70	0.53 \| 1ku	PDIP (N) \| 14	View	25 \| TUBE	Purchase Samples
SN74LS20NSR	ACTIVE	0 to 70	0.53 \| 1ku	SO (NS) \| 14	View	2000 \| LARGE T&R	Purchase Samples
SN74LS20NSRE4	ACTIVE	0 to 70	0.53 \| 1ku	SO (NS) \| 14	View	2000 \| LARGE T&R	Purchase Samples
SN74LS20NSRG4	ACTIVE	0 to 70	0.53 \| 1ku	SO (NS) \| 14	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 11:02 AM GMT, 26 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksSN74LS20D
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	150
Europe	Avnet-SILICA	900
Europe	Farnell	150
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksSN74LS20DE4
None Reported View Distributors
TI Lead Time*: 20 WeeksSN74LS20DG4
Worldwide	Mouser Electronics	897
TI Lead Time*: 18 WeeksSN74LS20DR
Americas	Rochester Electronics	>1k
TI Lead Time*: 18 WeeksSN74LS20DRE4
None Reported View Distributors
TI Lead Time*: 18 WeeksSN74LS20DRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksSN74LS20N
Americas	Arrow	>1k
	Avnet	>1k
	Newark	>1k
	Rochester Electronics	>1k
Asia	Farnell Asia	147
Europe	Abacus Polar	487
	Arrow Southern Europe	425
	Avnet-SILICA	750
	EBV Elektronik	275
	Spoerle	350
Worldwide	DigiKey	803
Worldwide	Mouser Electronics	785
TI Lead Time*: 20 WeeksSN74LS20NE4
Worldwide	DigiKey	Available
TI Lead Time*: 18 WeeksSN74LS20NSR
Americas	Rochester Electronics	>1k
TI Lead Time*: 18 WeeksSN74LS20NSRE4
None Reported View Distributors
TI Lead Time*: 18 WeeksSN74LS20NSRG4
None Reported View Distributors
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
SN74LS20D	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20DE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20DG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20DR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20DRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20DRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20N	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
SN74LS20NE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
SN74LS20NSR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20NSRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74LS20NSRG4	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 SN74LS20

Datasheet

Dual 4-Input Positive-NAND Gates (PDF, 45760 KB)
01 Mar 1988

Application Notes

Input and Output Characteristics of Digital Integrated Circuits (HTM, 9 KB) 9421 views
01 Oct 1996 Read Abstract
Live Insertion (HTM, 8 KB) 2447 views
01 Oct 1996 Read Abstract
TI IBIS File Creation, Validation, and Distribution Processes (HTM, 9 KB) 3911 views
29 Aug 2002 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27294 views
24 May 2004 Read Abstract
Designing with the SN54/74LS123 (Rev. A) (HTM, 9 KB) 3067 views
01 Mar 1997 Read Abstract
Designing With Logic (Rev. C) (HTM, 8 KB) 9174 views
01 Jun 1997 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21746 views
28 May 2003 Read Abstract

View Application Notes for NAND Gates

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 47453 views
16 Jan 2007

Selection Guides

Logic Guide 2009 (Rev. Z) (PDF, 4263 KB) 90936 views
23 Jul 2009

More Literature

Logic Cross-Reference (Rev. A) (PDF, 2938 KB) 15456 views
07 Oct 2003

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
SN74LS10	Triple 3-input positive-NAND gates	GATES-NAND GATES	TI customers also evaluated this product.
SN74LS00	Quad 2-input positive-NAND gates	GATES-NAND GATES	TI customers also evaluated this product.
SN74LS30	8-input positive-NAND gates	GATES-NAND GATES	TI customers also evaluated this product.
SN74LS138	3-line to 8-line decoder / demultiplexer	DECODERS/ENCODERS/MULTIPLEXERS-DECODERS/DEMULTIPLEXERS	TI customers also evaluated this product.
SN74LS02	Quad 2-input positive-NOR gates	GATES-NOR GATES	TI customers also evaluated this product.
SN74LS04	Hex inverters	BUFFERS, DRIVERS AND TRANSCEIVERS-INVERTING BUFFERS AND DRIVERS	TI customers also evaluated this product.
SN74LS08	Quadruple 2-Input Positive-AND Gates	GATES-AND GATES	TI customers also evaluated this product.
SN74LS112A	Dual J-K Negative-Edge-Triggered Flip-Flops With Clear And Preset	FLIP-FLOPS, LATCHES AND REGISTERS-J-K FLIP-FLOPS	TI customers also evaluated this product.
SN74LS32	Quad 2-input positive-OR gates	GATES-OR GATES	TI customers also evaluated this product.
SN74LS27	Triple 3-input positive-NOR gates	GATES-NOR GATES	TI customers also evaluated this product.

Support and Community

Customer Tags

No Tags are Available for this Part Number

SN74LS20 Status: ACTIVE

Dual 4-input positive-NAND gates

Most Popular Links

Datasheet

Other qualified versions of SN74LS20

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

Support and Community

Customer Tags

Other Support

SN74LS20 Status: ACTIVE

Dual 4-input positive-NAND gates

Most Popular Links

Datasheet

Other qualified versions of SN74LS20

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

Related Products

Support and Community

Customer Tags

Other Support