74LVC574A: Octal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger (3-state) (Based on PIP 74LVC574A)

The 74LVC574A is an octal D-type flip-flop featuring separate D-type inputs for each flip-flop and 3-state outputs for bus-oriented applications. A clock (CP) and an Output Enable (OE) input are common to all flip-flops.

The eight flip-flops will store the state of their individual D-inputs that meet the set-up and hold times requirements on the LOW to HIGH CP transition.

When OE is LOW, the contents of the eight flip-flops are available at the outputs. When OE is HIGH, the outputs go to the high-impedance OFF-state. Operation of the OE input does not affect the state of the flip-flops.

Inputs can be driven from either 3.3 V or 5 V devices. When disabled, up to 5.5 V can be applied to the outputs. These features allow the use of these devices as translators in mixed 3.3 V or 5 V applications.

The 74LVC574A is functionally identical to the 74LVC374A, but has a different pin arrangement.

74LVC574A: Product Block Diagram
Outline 3d SOT339-1
Data Sheets (1)
Name/DescriptionModified Date
Octal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-state (REV 5.0) PDF (137.0 kB) 74LVC574A [English]18 Dec 2012
Application Notes (5)
Name/DescriptionModified Date
Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English]13 Mar 2013
Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English]13 Mar 2013
Pin FMEA for LVC family (REV 1.0) PDF (44.0 kB) AN11009 [English]04 Feb 2011
Power considerations when using CMOS and BiCMOS logic devices (REV 1.0) PDF (100.0 kB) AN263 [English]05 Feb 2002
Interfacing 3 Volt and 5 Volt Applications (REV 1.0) PDF (63.0 kB) AN240 [English]15 Sep 1995
Selector Guides (2)
Name/DescriptionModified Date
ロジック製品セレクションガイド... (REV 1.0) PDF (38.3 MB) LOGIC_SELECTION_GUIDE_2015_JP [English]19 Nov 2015
Logic selection guide 2016 (REV 1.1) PDF (15.3 MB) 75017285 [English]08 Jan 2015
Package Information (4)
Name/DescriptionModified Date
plastic small outline package; 20 leads; body width 7.5 mm (REV 1.0) PDF (335.0 kB) SOT163-1 [English]08 Feb 2016
plastic shrink small outline package; 20 leads; body width 5.3 mm (REV 1.0) PDF (325.0 kB) SOT339-1 [English]08 Feb 2016
plastic thin shrink small outline package; 20 leads; body width 4.4 mm (REV 1.0) PDF (304.0 kB) SOT360-1 [English]08 Feb 2016
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.5 x 4.5 x... (REV 1.0) PDF (190.0 kB) SOT764-1 [English]08 Feb 2016
Packing (4)
Name/DescriptionModified Date
SSOP20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code... (REV 1.0) PDF (204.0 kB) SOT339-1_118 [English]02 Oct 2015
DHVQFN20; Reel pack; SMD, 7" Q1/T1 Standard product orientation Orderable part number ending ,115 or... (REV 4.0) PDF (203.0 kB) SOT764-1_115 [English]23 Apr 2013
SO20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 2.0) PDF (246.0 kB) SOT163-1_118 [English]15 Apr 2013
TSSOP20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 4.0) PDF (225.0 kB) SOT360-1_118 [English]15 Apr 2013
Supporting Information (3)
Name/DescriptionModified Date
Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English]30 Sep 2013
Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE [English]30 Sep 2013
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English]08 Oct 2009
IBIS Model
SPICE model
Ordering Information
ProductStatus
74LVC574ADBActive
74LVC574ADActive
74LVC574APWActive
74LVC574ABQActive
Package Information
Product IDPackage DescriptionOutline VersionReflow/Wave SolderingPackingProduct StatusPart NumberOrdering code(12NC)MarkingChemical ContentRoHS / Pb Free / RHFLeadFree Conversion DateEFRIFR(FIT)MTBF(hour)MSLMSL LF
74LVC574APWSOT360-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74LVC574APW,118 (9352 190 50118)LVC574A74LVC574APWweek 7, 2005123.83.872.58E811
Bulk PackActive74LVC574APW,112 (9352 190 50112)LVC574A74LVC574APWweek 7, 2005123.83.872.58E811
74LVC574ABQSOT764-1Reel 7" Q1/T1Active74LVC574ABQ,115 (9352 735 17115)LVC574A74LVC574ABQAlways Pb-free123.83.872.58E811
74LVC574ADSOT163-1Reflow_Soldering_Profile Wave_Soldering_Profile
Reflow_Soldering_Profile Wave_Soldering_Profile
Reel 13" Q1/T1Active74LVC574AD,118 (9352 190 30118)74LVC574AD74LVC574ADweek 30, 2004123.83.872.58E811
Bulk PackActive74LVC574AD,112 (9352 190 30112)74LVC574AD74LVC574ADweek 30, 2004123.83.872.58E811
74LVC574ADBSOT339-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1Active74LVC574ADB,118 (9352 190 40118)LVC574A74LVC574ADBweek 17, 2005123.83.872.58E811
Bulk PackActive74LVC574ADB,112 (9352 190 40112)LVC574A74LVC574ADBweek 17, 2005123.83.872.58E811
Octal D-type flip-flop with 5 V tolerant inputs/outputs; positive edge-trigger; 3-state 74LVC574A
74LVC574A
Interfacing 3 Volt and 5 Volt Applications 74LVC377PW
Power considerations when using CMOS and BiCMOS logic devices 74AHCT244PW
Pin FMEA for LVC family 74LVC1G123_Q100
Sorting through the low voltage logic maze 74LVC_H_245A_Q100
Voltage translation: How to manage mixed-voltage designs with NXP® level translators 74AVC16245DGG-Q100
Low voltage CMOS family - LVC 74LVC_H_245A_Q100
Footprint for reflow soldering SOT339-1 74LVT640
plastic shrink small outline package; 20 leads; body width 5.3 mm 74LVT640
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
SO20; Reel dry pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,518 or... NPIC6C4894_Q100
plastic small outline package; 20 leads; body width 7.5 mm SA615
Reel 13" Q1/T1 LPC812M101JD20
Tape reel SMD; standard product orientation 12NC ending 115 buk1m200-50sgtd
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
plastic thin shrink small outline package; 20 leads; body width 4.4 mm PCA9634
Reel 13" Q1/T1 LPC824M201JDH20
SSOP-TSSOP-VSO-WAVE LPC1114FDH28
plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 20 terminals; body 2.5 x 4.5 x 0.85 mm 74VHC_T_245
Footprint for reflow soldering SOT764-1 74VHC_T_245
DHVQFN20; Reel pack; SMD, 7" Q1/T1 Standard product orientation Orderable part number ending ,115 or... 74LVC_H_245A_Q100
lvc574a IBIS model 74LVC574A
lvc Spice model 74LVC3G17GT