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74HCT74BZ

Dual D-type flip-flop with set and reset; positive edge-trigger

The 74HC74 and 74HCT74 are dual positive edge triggered D-type flip-flop. They have individual data (nD), clock (nCP), set (nSD) and reset (nRD) inputs, and complementary nQ and nQ outputs. Data at the nD-input, that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition, is stored in the flip-flop and appears at the nQ output. Schmitt-trigger action in the clock input, makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Features and benefits

  • Wide supply voltage range from 2.0 to 6.0 V
  • CMOS low power dissipation
  • High noise immunity
  • Input levels:

    • For 74HC74: CMOS level

    • For 74HCT74: TTL level

  • Symmetrical output impedance

  • High noise immunity

  • Balanced propagation delays

  • 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)
  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Multiple package options

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

Parametrics

Type number Product status VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) fmax (MHz) Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Rth(j-c) (K/W) Package name
74HCT74BZ Production 4.5 - 5.5 TTL ± 4 15 59 low -40~125 115 72 DHXQFN14

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HCT74BZ 74HCT74BZZ
(935691426147)
Active T74 SOT8014-1
DHXQFN14
(SOT8014-1)
SOT8014-1 SOT8014-1_147

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HCT74BZ 74HCT74BZZ 74HCT74BZ rohs rhf rhf
Quality and reliability disclaimer

Series

Documentation (6)

File name Title Type Date
74HC_HCT74 Dual D-type flip-flop with set and reset; positive edge-trigger Data sheet 2024-04-02
SOT8014-1 3D model for products with SOT8014-1 package Design support 2023-02-02
hct74 74HCT74 IBIS model IBIS model 2022-10-21
SOT8014-1 plastic, leadless dual in-line compatible thermal enhanced extreme thin quad flat package;no leads; 14 terminals; 0.4 mm pitch; body 2 mm x 2 mm x 0.48 mm Package information 2023-02-28
SOT8014-1_147 DHXQFN14; Reel pack for SMD, 7''; Q2/T3 product orientation Packing information 2020-12-03
74HCT74BZ_Nexperia_Product_Reliability 74HCT74BZ Nexperia Product Reliability Quality document 2023-05-29

Support

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Models

File name Title Type Date
hct74 74HCT74 IBIS model IBIS model 2022-10-21
SOT8014-1 3D model for products with SOT8014-1 package Design support 2023-02-02

PCB Symbol, Footprint and 3D Model

Model Name Description

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
74HCT74BZ 74HCT74BZZ 935691426147 Active SOT8014-1_147 3,000 Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

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.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT74BZ 74HCT74BZZ 935691426147 SOT8014-1 Order product