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74HC273DB NRND ECAD models PCB Symbol, Footprint & ECAD Model

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

The 74HC273; 74HCT273 is an octal positive-edge triggered D-type flip-flop. The device features clock (CP) and master reset (MR) inputs. The outputs Qn will assume the state of their corresponding Dn inputs that meet the set-up and hold time requirements on the LOW-to-HIGH clock (CP) transition. A LOW on MR forces the outputs LOW independently of clock and data inputs. 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
74HC273DB 74HC273DB,118 935174730118 SOT339-1 Order product
74HC273DB 74HC273DB,112 935174730112 SOT339-1 Order product

Features

  • Input levels:
    • For 74HC273: CMOS level
    • For 74HCT273: TTL level
  • Common clock and master reset
  • Eight positive edge-triggered D-type flip-flops
  • 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 from -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
74HC273DB
NRND
Not for design in2.0 - 6.0CMOS+/- 5.215122low-40~12513640.0SSOP20

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC273DB
NRND
74HC273DB,118
( 9351 747 30118 )
ActiveHC273
SSOP20
(SOT339-1)
SOT339-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC273DB
NRND
74HC273DB,112
( 9351 747 30112 )
Discontinued / End-of-lifeHC273
SSOP20
(SOT339-1)
SOT339-1SSOP-TSSOP-VSO-WAVE
Bulk Pack

Discontinuation information

Type numberOrderable part numberlabel.orderingCodeLast time buy dateLast time delivery dateReplacement productStatusComments
74HC273DB
NRND
74HC273DB,11293517473011274HC273PW

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC273DB
NRND
74HC273DB,11874HC273DB11

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC273DB
NRND
74HC273DB,11274HC273DB11
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
74HC_HCT273Octal D-type flip-flop with reset; positive-edge triggerData sheet2017-03-17
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
hchc Spice modelSPICE model2013-05-06
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT339-1_118SSOP20; Reel pack for SMD, 13''; Q1/T1 product orientationPacking2020-02-25
SOT339-1plastic, shrink small outline package; 20 leads; 0.65 mm pitch; 7.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18

Support

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Models

File nameTitleTypeDate
hchc Spice modelSPICE model2013-05-06

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC273DB74HC273DB,118935174730118Reel 13" Q1/T1Order product
74HC273DB74HC273DB,112935174730112Bulk PackOrder product

Sample

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Sample orders normally take 2-4 days for delivery.

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