Quad 2-input multiplexer

The 74HC157-Q100; 74HCT157-Q100 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL. It is specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT157-Q100 are quad 2-input multiplexers 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 74HC/HCT157-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 74HC/HCT157-Q100 is logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to S.

The logic equations are:

1Y = E x (1I1 x S + 1I0 x S)

2Y = E x (2I1 x S + 2I0 x S)

3Y = E x (3I1 x S + 3I0 x S)

4Y = E x (4I1 x S + 4I0 x S)

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


  • Automotive product qualification in accordance with AEC-Q100 (Grade 1)
    • Specified from -40 °C to +85 °C and from -40 °C to +125 °C
  • Low-power dissipation
  • Non-inverting data path
  • 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)
  • Multiple package options


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
74HC157BQ-Q100Production2.0 - 6.0CMOS± 5.211low-40~1259213.161DHVQFN16
74HC157D-Q100Production2.0 - 6.0CMOS± 5.211low-40~125929.251SO16
74HC157PW-Q100Production2.0 - 6.0CMOS± 5.211low-40~1251244.454TSSOP16
74HCT157BQ-Q100Production4.5 - 5.5TTL± 413low-40~1259213.161DHVQFN16
74HCT157D-Q100Production4.5 - 5.5TTL± 413low-40~125929.251SO16
74HCT157PW-Q100Production4.5 - 5.5TTL± 413low-40~1251244.454TSSOP16


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SOT763-1Reel 7" Q1/T1ActiveHC15774HC157BQ-Q100,115
( 9352 989 04115 )
Reel 13" Q1/T1Active74HC157D74HC157D-Q100,118
( 9352 989 05118 )
Reel 13" Q1/T1ActiveHC15774HC157PW-Q100,118
( 9352 989 06118 )
SOT763-1Reel 7" Q1/T1ActiveHCT15774HCT157BQ-Q100,11
( 9352 989 07115 )
Reel 13" Q1/T1Active74HCT157D74HCT157D-Q100,118
( 9352 989 08118 )
Reel 13" Q1/T1ActiveHCT15774HCT157PW-Q100,11
( 9352 989 09118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRMSLMSL leadfree
74HC157BQ-Q10074HC157BQ-Q100,11574HC157BQ-Q100Always Pb-free84.911
74HC157D-Q10074HC157D-Q100,11874HC157D-Q100Always Pb-free84.911
74HC157PW-Q10074HC157PW-Q100,11874HC157PW-Q100Always Pb-free84.911
74HCT157BQ-Q10074HCT157BQ-Q100,1174HCT157BQ-Q100Always Pb-free84.911
74HCT157D-Q10074HCT157D-Q100,11874HCT157D-Q100Always Pb-free84.911
74HCT157PW-Q10074HCT157PW-Q100,1174HCT157PW-Q100Always Pb-free84.911
Quality and reliability disclaimer

Documentation (15)

File nameTitleTypeDate
74HC_HCT157_Q100Quad 2-input multiplexerData sheet2017-03-30
nexperia_selection_guide_2019_201901Selection guide 2019. Discretes, Logic and MOSFETsSelection guide2018-12-12
SOT763-1_115DHVQFN16; Reel pack, SMD, 7" Q1/T1 standard product orientation Orderable part number ending ,115 or X Ordering code (12NC) ending 115Packing2016-07-05
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 bodyOutline drawing2018-11-14
SOT109-1_431SO16; Reel sulfur barrier pack, SMD, 13" Q1/T1 standard product orientation Orderable part number ending ,431 or Z Ordering code (12NC) ending 431Packing2016-08-25
SOT109-1_118SO16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-24
SOT109-1plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.35 mm bodyOutline drawing2018-10-18
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT403-1_623TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 623 or HL; Ordering code (12NC) ending 623Packing2013-05-15
SOT403-1_118TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packing2013-04-08
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT403-1_128TSSOP16; Reel pack; SMD, 13", Turned Q4/T2 180 deg product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128Packing2014-10-14
SOT403-1_653TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 653 or HL; Ordering code (12NC) ending 653Packing2013-05-15
SOT403-1plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.1 mm bodyOutline drawing2018-11-14


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