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ESD protection, TVS, filtering and signal conditioning

MOSFETs

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Analog & Logic ICs

Automotive qualified products (AEC-Q100/Q101)

74HCT238PW

3-to-8 line decoder/demultiplexer

The 74HC238; 74HCT238 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.

Alternatives

Features and benefits

  • Wide supply voltage range from 2.0 to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Demultiplexing capability

  • Multiple input enable for easy expansion

  • Ideal for memory chip select decoding

  • Active HIGH mutually exclusive outputs

  • Input levels:

    • For 74HC238: CMOS level

    • For 74HCT238: TTL level

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Multiple package options

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

Parametrics

Type number VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) Power dissipation considerations Tamb (°C) Package name
74HCT238PW 4.5 - 5.5 TTL ± 4 18 low -40~125 TSSOP16

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HCT238PW 74HCT238PW,118
(935189560118)		 Active HCT238 SOT403-1
TSSOP16
(SOT403-1) 		SOT403-1 SSOP-TSSOP-VSO-WAVE
SOT403-1_118

All type numbers in the table below are discontinued.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HCT238PW 74HCT238PW,112
(935189560112)		 Withdrawn / End-of-life HCT238 SOT403-1
TSSOP16
(SOT403-1) 		SOT403-1 SSOP-TSSOP-VSO-WAVE
Not available

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HCT238PW 74HCT238PW,118 74HCT238PW rohs rhf rhf

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
74HCT238PW 74HCT238PW,112 74HCT238PW rohs rhf rhf
Quality and reliability disclaimer

Series

Documentation (10)

File name Title Type Date
74HC_HCT238 3-to-8 line decoder/demultiplexer Data sheet 2024-03-21
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSSOP16_SOT403-1_mk plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
SOT403-1 plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body Package information 2023-11-08
SOT403-1_118 TSSOP16; Reel pack for SMD, 13"; Q1/T1 product orientation Packing information 2020-04-21
74HCT238PW_Nexperia_Product_Reliability 74HCT238PW Nexperia Product Reliability Quality document 2024-06-16
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08

Support

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Models

File name Title Type Date
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22

PCB Symbol, Footprint and 3D Model

Model Name Description

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
74HCT238PW 74HCT238PW,118 935189560118 Active SOT403-1_118 2,500 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

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT238PW 74HCT238PW,118 935189560118 SOT403-1 Order product