74AHC157-Q100; 74AHCT157-Q100

Quad 2-input multiplexer

The 74AHC/AHCT157-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 74AHC/AHCT157-Q100 are quad 2-input multiplexer which select 4 bits of data from two sources under the control of a common data select input (S). The enable input (E) is active LOW. When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other input conditions.

Moving the data from two groups of registers to four common output buses is a common use of the 74AHC/AHCT157-Q100. The state of the common data select input (S) determines the particular register from which the data comes. It can also be used as function generator. The device is useful for implementing highly irregular logic by generating any four of the 16 different functions of two variables with one variable common. The 74AHC/AHCT157-Q100 is logic implementation of a 4-pole, 2-position switch, where the position of the switch is determine by the logic levels applied to S.

The logic equations are:

  • 1Y = E × (1I1 × S + 1I0 × S)

  • 2Y = E × (2I1 × S + 2I0 × S)

  • 3Y = E × (3I1 × S + 3I0 × S)

  • 4Y = E × (4I1 × S + 4I0 × S)

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

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 a Schmitt-trigger action

  • Inputs accepts voltages higher than VCC

  • Multiple input enable for easy expansion

  • Ideal for memory chip select decoding

  • For 74AHC157-Q100 only: operates with CMOS input levels

  • For 74AHCT157-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


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
74AHC157BQ-Q100Production2.0 - 5.5CMOS± 83.2low-40~1259112.760DHVQFN16
74AHC157D-Q100Production2.0 - 5.5CMOS± 83.2low-40~125918.950SO16
74AHC157PW-Q100Production2.0 - 5.5CMOS± 83.2low-40~1251234.253TSSOP16
74AHCT157BQ-Q100Production4.5 - 5.5TTL± 83.2low-40~1259112.760DHVQFN16
74AHCT157D-Q100Production4.5 - 5.5TTL± 83.2low-40~125918.950SO16
74AHCT157PW-Q100Production4.5 - 5.5TTL± 83.2low-40~1251234.253TSSOP16


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
( 9353 006 85115 )
( 9353 006 83118 )
( 9353 006 84118 )
( 9353 006 88115 )
( 9353 006 86118 )
( 9353 006 87118 )

Environmental information

Type numberOrderable part numberChemical contentRoHSRHF-indicatorLeadfree conversion date
74AHC157BQ-Q10074AHC157BQ-Q100X74AHC157BQ-Q100Always Pb-free
74AHC157D-Q10074AHC157D-Q100J74AHC157D-Q100Always Pb-free
74AHC157PW-Q10074AHC157PW-Q100J74AHC157PW-Q100Always Pb-free
74AHCT157BQ-Q10074AHCT157BQ-Q100X74AHCT157BQ-Q100Always Pb-free
74AHCT157D-Q10074AHCT157D-Q100J74AHCT157D-Q100Always Pb-free
74AHCT157PW-Q10074AHCT157PW-Q100J74AHCT157PW-Q100Always Pb-free
Quality and reliability disclaimer

Documentation (10)

File nameTitleTypeDate
74AHC_AHCT157_Q100Quad 2-input multiplexerData sheet2024-03-07
ahc157ahc157 IBIS modelIBIS model2013-04-07
ahct157ahct157 IBIS modelIBIS model2013-04-07
SOT763-1plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm bodyPackage information2023-05-11
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
WAVE_BG-BD-1Wave soldering profileWave soldering2021-09-08
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm bodyPackage information2023-11-07
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm bodyPackage information2023-11-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08


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.


File nameTitleTypeDate
ahc157ahc157 IBIS modelIBIS model2013-04-07
ahct157ahct157 IBIS modelIBIS model2013-04-07


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.