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74HC21DB NRND ECAD models PCB Symbol, Footprint & ECAD Model

Dual 4-input AND gate

The 74HC21 is a dual 4-input AND gate. 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
74HC21DB 74HC21DB,118 935189790118 SOT337-1 Order product
74HC21DB 74HC21DB,112 935189790112 SOT337-1 Order product

Features

  • Low-power dissipation
  • Complies with JEDEC standard no. 7A
  • ESD protection:
    • HBM JESD22-A114E exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Multiple package options
  • Specified from -40 °C to +80 °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)No of bitsPower dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74HC21DB
NRND
Not for design in2.0 - 6.0CMOS+/- 5.210362low-40~12515640.0SSOP14

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackageOutline versionReflow-/Wave solderingPacking
74HC21DB
NRND
74HC21DB,118
( 9351 897 90118 )
ActiveHC21
SSOP14
(SOT337-1)
SOT337-1SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1
74HC21DB,112
( 9351 897 90112 )
ActiveHC21Bulk Pack

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFMSLMSL leadfree
74HC21DB
NRND
74HC21DB,11874HC21DB11
74HC21DB
NRND
74HC21DB,11274HC21DB11
Quality and reliability disclaimer

Documentation (7)

File nameTitleTypeDate
74HC21Dual 4-input AND gateData sheet2017-07-20
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
SOT337-1_118SSOP14; Reel pack for SMD, 13''; Q1/T1 product orientationPacking2020-02-25
SOT337-1plastic, shrink small outline package; 14 leads; 0.65 mm pitch; 6.2 mm x 5.3 mm x 2 mm bodyOutline drawing2018-10-18

Support

If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74HC21DB74HC21DB,118935189790118Reel 13" Q1/T1Order product
74HC21DB74HC21DB,112935189790112Bulk PackOrder 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.