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74HCT251PW

8-input multiplexer; 3-state

The 74HC251; 74HCT251 is an 8-bit multiplexer with eight binary inputs (I0 to I7), three select inputs (S0 to S2) and an output enable input (OE). The select inputs select one of the eight binary inputs and route it to the complementary outputs (Y and Y). A HIGH on OE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT251PW 74HCT251PW,118 935188380118 SOT403-1 Order product

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 74HC251: CMOS level
    • For 74HCT251: TTL level
  • Non-inverting data path
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V
  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74HCT251PWProduction4.5 - 5.5TTL± 422low-40~1251142.041.9TSSOP16

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74HCT251PW74HCT251PW,118
( 9351 883 80118 )
ActiveHCT251
TSSOP16
(SOT403-1)
SOT403-1SSOP-TSSOP-VSO-WAVE
Reel 13" Q1/T1

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
74HCT251PW74HCT251PW,11874HCT251PW
Quality and reliability disclaimer

Documentation (5)

File nameTitleTypeDate
74HC_HCT2518-input multiplexer; 3-stateData sheet2021-02-08
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
74HCT251PW_Nexperia_Product_Reliability74HCT251PW Nexperia Product ReliabilityQuality document2022-05-04
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08

Support

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Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
74HCT251PW74HCT251PW,118935188380118Reel 13" Q1/T1- 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.