Nexperia
Or cross multiple parts
×

74AHC138BQ-Q100

3-to-8 line decoder/demultiplexer; inverting

The 74AHC138-Q100; 74AHCT138-Q100 are high-speed Si-gate CMOS devices and are pin compatible with Low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard No. 7A.

The 74AHC138-Q100; 74AHCT138-Q100 is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs (A0, A1 and A2) and, when enabled, provides eight mutually exclusive outputs (Y0 to Y7) that are LOW when selected.

There are three enable inputs: two active LOW (E1 and E2) and one active HIGH (E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH.

This multiple enable function allows easy parallel expansion of the device to a 1-of-32 (5 lines to 32 lines) decoder with just four 74AHC138-Q100; 74AHCT138-Q100 devices and one inverter. The 74AHC138-Q100; 74AHCT138-Q100 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. Unused enable inputs must be permanently tied to their appropriate active HIGH or LOW state.

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
74AHC138BQ-Q100 74AHC138BQ-Q100X 935300181115 SOT763-1 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

  • Balanced propagation delays

  • All inputs have Schmitt-trigger action

  • Demultiplexing capability

  • Multiple input enable for easy expansion

  • Ideal for memory chip select decoding

  • Inputs accepts voltages higher than VCC

  • For 74AHC138-Q100 only: operates with CMOS input levels

  • For 74AHCT138-Q100 only: operates with TTL input levels

  • 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

  • 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
74AHC138BQ-Q100Production2.0 - 5.5CMOS± 84.4low-40~1259313.862DHVQFN16

PCB Symbol, Footprint and 3D Model

Model NameDescription

Package

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
74AHC138BQ-Q10074AHC138BQ-Q100X
( 9353 001 81115 ) 		ActiveAHC138
DHVQFN16
(SOT763-1) 		SOT763-1SOT763-1_115

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicator
74AHC138BQ-Q10074AHC138BQ-Q100X74AHC138BQ-Q100
Quality and reliability disclaimer

Series

Documentation (5)

File nameTitleTypeDate
74AHC_AHCT138_Q1003-to-8 line decoder/demultiplexer; invertingData sheet2023-09-04
AN11106Pin FMEA for AHC/AHCT familyApplication note2019-01-09
ahc138ahc138 IBIS modelIBIS model2013-04-07
74AHC138BQ-Q100_Nexperia_Product_Reliability74AHC138BQ-Q100 Nexperia Product ReliabilityQuality document2023-05-29
SOT763-1_115DHVQFN16; Reel pack, SMD, 7" Q1/T1 product orientationPacking information2020-02-13

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.

Models

File nameTitleTypeDate
ahc138ahc138 IBIS modelIBIS model2013-04-07

PCB Symbol, Footprint and 3D Model

Model NameDescription

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
74AHC138BQ-Q10074AHC138BQ-Q100X935300181115SOT763-1_115- 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.

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