Flip-Flops, Latches and Registers - D-Type (3-State) Flip-Flops - SN74HCT574

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Datasheet

SN54HCT574, SN74HCT574 (Rev. E) (PDF 563 KB)
19 Aug 2003

	SN74HCT574
Voltage Nodes(V)	5
Vcc range(V)	4.5 to 5.5
Input Level	TTL
Output Level	CMOS
Output Drive(mA)	-6/6
No. of Outputs	8
Static Current	0.08
th(ns)	5
tpd max(ns)	41
tsu(ns)	23
Logic	True
Technology Family	HCT
Rating	Catalog
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

SN74HC574: Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs
TLV2370: 550-uA/Channel 3-MHz RRIO Op Amp with Shutdown
TPS65131: 800mA/1950mA Boost Current w/ Pos.& Neg.(Dual) output for OLED & CCD sensor, 24 QFN
TPS61045: 28-V, 85% Efficient Boost Converter in QFN-8, Digitally Adjustable

Product Information

Features

Operating Voltage Range of 4.5 V to 5.5 V
High-Current 3-State Noninverting Outputs Drive Bus Lines Directly or Up To 15 LSTTL Loads
Low Power Consumption, 80-µA Max I_CC
Typical t_pd = 22 ns
±6-mA Output Drive at 5 V
Low Input Current of 1 µA Max
Inputs Are TTL-Voltage Compatible
Bus-Structured Pinout

Description

These octal edge-triggered D-type flip-flops feature 3-state outputs designed specifically for bus driving. The ’HCT574 devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.

The eight flip-flops enter data on the low-to-high transition of the clock (CLK) input.

A buffered output-enable (OE)\ input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.

OE\ does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

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
SN74HCT574DBR	ACTIVE	-40 to 85	0.33 \| 1ku	SSOP (DB) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74HCT574DBRE4	ACTIVE	-40 to 85	0.33 \| 1ku	SSOP (DB) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74HCT574DBRG4	ACTIVE	-40 to 85	0.33 \| 1ku	SSOP (DB) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74HCT574DW	ACTIVE	-40 to 85	0.31 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples
SN74HCT574DWG4	ACTIVE	-40 to 85	0.31 \| 1ku	SOIC (DW) \| 20	View	25 \| TUBE	Purchase Samples
SN74HCT574DWR	ACTIVE	-40 to 85	0.29 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
SN74HCT574DWRE4	ACTIVE	-40 to 85	0.29 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
SN74HCT574DWRG4	ACTIVE	-40 to 85	0.29 \| 1ku	SOIC (DW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
SN74HCT574N	ACTIVE	-40 to 85	0.33 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Contact TI Distributor or Sales Office
SN74HCT574N3	OBSOLETE	-40 to 85		PDIP (N) \| 20	View		Not Available
SN74HCT574NE4	ACTIVE	-40 to 85	0.33 \| 1ku	PDIP (N) \| 20	View	20 \| TUBE	Contact TI Distributor or Sales Office
SN74HCT574NSR	ACTIVE	-40 to 85	0.33 \| 1ku	SO (NS) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74HCT574NSRE4	ACTIVE	-40 to 85	0.33 \| 1ku	SO (NS) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74HCT574NSRG4	ACTIVE	-40 to 85	0.33 \| 1ku	SO (NS) \| 20	View	2000 \| LARGE T&R	Purchase Samples
SN74HCT574PW	ACTIVE	-40 to 85	0.33 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE	Purchase Samples
SN74HCT574PWE4	ACTIVE	-40 to 85	0.33 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE	Purchase Samples
SN74HCT574PWG4	ACTIVE	-40 to 85	0.33 \| 1ku	TSSOP (PW) \| 20	View	70 \| TUBE	Purchase Samples
SN74HCT574PWLE	OBSOLETE	-40 to 85		TSSOP (PW) \| 20	View		Not Available
SN74HCT574PWR	ACTIVE	-40 to 85	0.33 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
SN74HCT574PWRE4	ACTIVE	-40 to 85	0.33 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
SN74HCT574PWRG4	ACTIVE	-40 to 85	0.33 \| 1ku	TSSOP (PW) \| 20	View	2000 \| LARGE T&R	Contact TI Distributor or Sales Office
SN74HCT574PWT	ACTIVE	-40 to 85	0.66 \| 1ku	TSSOP (PW) \| 20	View	250 \| SMALL T&R	Purchase Samples
SN74HCT574PWTE4	ACTIVE	-40 to 85	0.66 \| 1ku	TSSOP (PW) \| 20	View	250 \| SMALL T&R	Purchase Samples
SN74HCT574PWTG4	ACTIVE	-40 to 85	0.66 \| 1ku	TSSOP (PW) \| 20	View	250 \| SMALL 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 10:55 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 15 WeeksSN74HCT574DBR
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 15 WeeksSN74HCT574DBRE4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74HCT574DBRG4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74HCT574DW
Americas	Avnet	>1k
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	19
Asia	WPI	465
Europe	Abacus Polar	242
	Compel	>1k
	EBV Elektronik	>1k
	Farnell	1
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	19
TI Lead Time*: 15 WeeksSN74HCT574DWG4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksSN74HCT574DWR
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	120
Europe	EBV Elektronik	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 15 WeeksSN74HCT574DWRE4
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksSN74HCT574DWRG4
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksSN74HCT574N
Americas	Arrow	>1k
	Avnet	569
	Newark	311
	Rochester Electronics	439
Asia	Farnell Asia	199
Europe	Arrow Southern Europe	280
	Avnet-SILICA	260
	EBV Elektronik	>1k
	Farnell	173
Worldwide	DigiKey	>1k
TI Lead Time*: 15 WeeksSN74HCT574NE4
Americas	Avnet	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 15 WeeksSN74HCT574NSR
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74HCT574NSRE4
None Reported View Distributors
TI Lead Time*: 15 WeeksSN74HCT574NSRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksSN74HCT574PW
Americas	Arrow	>1k
Americas	Avnet	765
Worldwide	Mouser Electronics	350
TI Lead Time*: 20 WeeksSN74HCT574PWE4
None Reported View Distributors
TI Lead Time*: 20 WeeksSN74HCT574PWG4
None Reported View Distributors
TI Lead Time*: 19 WeeksSN74HCT574PWR
Americas	Rochester Electronics	>1k
Asia	WPI	>1k
Worldwide	Mouser Electronics	10
TI Lead Time*: 19 WeeksSN74HCT574PWRE4
None Reported View Distributors
TI Lead Time*: 19 WeeksSN74HCT574PWRG4
None Reported View Distributors
TI Lead Time*: 14 WeeksSN74HCT574PWT
Americas	Rochester Electronics	250
TI Lead Time*: 14 WeeksSN74HCT574PWTE4
None Reported View Distributors
TI Lead Time*: 14 WeeksSN74HCT574PWTG4
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
SN74HCT574DBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574DBRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574DBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574DW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574DWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574DWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574DWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574DWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574N	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
SN74HCT574NE4	Pb-Free (RoHS)	CU NIPDAU	N/A for Pkg Type	View	View
SN74HCT574NSR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574NSRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574NSRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PW	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWRE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWTE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
SN74HCT574PWTG4	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 SN74HCT574

Datasheet

SN54HCT574, SN74HCT574 (Rev. E) (PDF, 563 KB)
19 Aug 2003

Application Notes

TI IBIS File Creation, Validation, and Distribution Processes (HTM, 9 KB) 3849 views
29 Aug 2002 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26969 views
24 May 2004 Read Abstract
Designing With Logic (Rev. C) (HTM, 8 KB) 9068 views
01 Jun 1997 Read Abstract
SN54/74HCT CMOS Logic Family Applications and Restrictions (HTM, 8 KB) 3757 views
01 May 1996 Read Abstract
Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (HTM, 8 KB) 2053 views
01 Apr 1996 Read Abstract
Understanding and Interpreting Standard-Logic Data Sheets (Rev. B) (HTM, 8 KB) 21380 views
28 May 2003 Read Abstract
Implications of Slow or Floating CMOS Inputs (Rev. C) (HTM, 8 KB) 7013 views
01 Feb 1998 Read Abstract
CMOS Power Consumption and CPD Calculation (Rev. B) (HTM, 9 KB) 3135 views
01 Jun 1997 Read Abstract

View Application Notes for D-Type (3-State) Flip-Flops

User Guides

LOGIC Pocket Data Book (Rev. B) (PDF, 6001 KB) 46833 views
16 Jan 2007
Signal Switch Data Book (Rev. A) (PDF, 18396 KB) 9501 views
14 Nov 2003

Selection Guides

Logic Guide 2009 (Rev. Z) (PDF, 4263 KB) 88618 views
23 Jul 2009

More Literature

Logic Cross-Reference (Rev. A) (PDF, 2938 KB) 15250 views
07 Oct 2003

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SN74HCT574 Status: ACTIVE

Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs

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Datasheet

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

SN74HCT574 Status: ACTIVE

Octal Edge-Triggered D-Type Flip-Flops With 3-State Outputs

Most Popular Links

Datasheet

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