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74HCT238PW-Q100

3-to-8 line decoder/demultiplexer

The 74HC238-Q100; 74HCT238-Q100 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1 and E2 and E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '238 ICs and one inverter. The '238 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.

This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT238PW-Q100 74HCT238PW-Q100J 935300069118 SOT403-1 Order product

Features and benefits

  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)

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

  • Demultiplexing capability

  • Multiple input enable for easy expansion

  • Ideal for memory chip select decoding

  • Active HIGH mutually exclusive outputs

  • Multiple package options

  • Complies with JEDEC standard no. 7A

  • Input levels:

    • For 74HC238: CMOS level

    • For 74HCT238: TTL level

  • ESD protection:

    • MIL-STD-883, method 3015 exceeds 2000 V

    • HBM JESD22-A114F exceeds 2000 V

    • MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0 Ω)

  • DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints

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
74HCT238PW-Q100Production4.5 - 5.5TTL± 418low-40~1251264.855.6TSSOP16

PCB Symbol, Footprint and 3D Model

Model NameDescription

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74HCT238PW-Q10074HCT238PW-Q100J
( 9353 000 69118 ) 		ActiveHCT238
TSSOP16
(SOT403-1) 		SOT403-1SSOP-TSSOP-VSO-WAVE
SOT403-1_118

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
74HCT238PW-Q10074HCT238PW-Q100J74HCT238PW-Q100
Quality and reliability disclaimer

Series

Documentation (6)

File nameTitleTypeDate
74HC_HCT238_Q1003-to-8 line decoder/demultiplexerData sheet2020-04-03
AN11044Pin FMEA 74HC/74HCT familyApplication note2019-01-09
74HCT238PW-Q100_Nexperia_Product_Reliability74HCT238PW-Q100 Nexperia Product ReliabilityQuality document2023-05-29
HCT_USER_GUIDEHC/T User GuideUser manual1997-10-31
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT403-1_118TSSOP16; Reel pack for SMD, 13"; Q1/T1 product orientationPacking information2020-02-14

Support

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PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
74HCT238PW-Q10074HCT238PW-Q100J935300069118SOT403-1_118- Order product

Sample

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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.

Interactive datasheet