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74HC574DB

Octal D-type flip-flop; positive edge-trigger; 3-state

The 74HC574; 74HCT574 is an 8-bit positive-edge triggered D-type flip-flop with 3-state outputs. The device features a clock (CP) and output enable (OE) inputs. The flip-flops will store the state of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CP) transition. A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Operation of the OE input does not affect the state of the flip-flops. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

This product has been discontinued, click here for discontinuation information and replacement parts.

Features and benefits

  • Wide supply voltage range from 2.0 V to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Complies with JEDEC standards:

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • Input levels:

    • For 74HC574: CMOS level

    • For 74HCT574: TTL level

  • 3-state non-inverting outputs for bus oriented applications

  • 8-bit positive, edge-triggered register

  • Common 3-state output enable input

  • ESD protection:

    • HBM JESD22-A114F exceeds 2 kV

    • MM JESD22-A115-A exceeds 200 V

  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type number Product status Package name
74HC574DB End of life SSOP20

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HC574DB 74HC574DB,118
(935187010118)
Withdrawn / End-of-life HC574 SOT339-1
SSOP20
(SOT339-1)
SOT339-1 SSOP-TSSOP-VSO-WAVE
SOT339-1_118
74HC574DB,112
(935187010112)
Obsolete HC574 Not available

Environmental information

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number Chemical content RoHS RHF-indicator
74HC574DB 74HC574DB,118 74HC574DB rohs rhf rhf
74HC574DB 74HC574DB,112 74HC574DB rohs rhf rhf
Quality and reliability disclaimer

Documentation (6)

File name Title Type Date
74HC_HCT574 Octal D-type flip-flop; positive edge-trigger; 3-state Data sheet 2022-10-20
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
SOT339-1 plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm body Package information 2020-04-21
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

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Models

No documents available

PCB Symbol, Footprint and 3D Model

Model Name Description

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.