74HC174DB NRND

Hex D-type flip-flop with reset; positive-edge trigger

The 74HC174; 74HCT174 are hex positive edge -triggered D-type flip-flops with individual data inputs (Dn) and outputs (Qn). The common clock (CP) and master reset (MR ) inputs load and reset all flip-flops simultaneously. The D-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 Q output. A LOW on MR causes the flip-flops and outputs to be reset LOW. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Not recommended for new designs (NRND), click here for the alternative product.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HC174DB 74HC174DB,118 935188580118 SOT338-1 Order product
74HC174DB 74HC174DB,112 935188580112 SOT338-1 Order product

Features

  • Input levels:
    • For 74HC174: CMOS level
    • For 74HCT174: TTL level
  • Six edge-triggered D-type flip-flops
  • Asynchronous master reset
  • Complies with JEDEC standard no. 7A
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V.
  • Multiple package options
  • Specified from -40 °C to +85 °C and -40 °C to +125 °C.

Target applications

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)fmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74HC174DB
NRND
Not for design in2.0 - 6.0CMOS+/- 5.21799low-40~12514842.0SSOP16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC174DB
NRND
74HC174DB,118
( 9351 885 80118 )
ActiveHC174
SSOP16
(SOT338-1)
SOT338-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1
74HC174DB,112
( 9351 885 80112 )
ActiveHC174Bulk Pack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC174DB
NRND
74HC174DB,11874HC174DB11
74HC174DB
NRND
74HC174DB,11274HC174DB11
Quality and reliability disclaimer

Documentation (6)

File nameTitleTypeDate
74HC_HCT174Hex D-type flip-flop with reset; positive-edge triggerData sheet2017-03-17
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SSOP-TSSOP-VSO-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SOT338-1plastic, shrink small outline package; 16 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18

Support

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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC174DB74HC174DB,118935188580118Reel 13" Q1/T1Order product
74HC174DB74HC174DB,112935188580112Bulk PackOrder product

Sample

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