74AHC257D-Q100

Quad 2-input multiplexer; 3-state

The 74AHC257-Q100; 74AHCT257-Q100 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.

The 74AHC257-Q100; 74AHCT257-Q100 has four identical 2-input multiplexers with 3-state outputs. They select 4 bits of data from two sources and a common data select input (S) controls them. The data inputs from source 0 (1I0 to 4I0), are selected when input S is LOW. The data inputs from source 1 (1I1 to 4I1) are selected when input S is HIGH. Data appears at the outputs (1Y to 4Y) in true (non-inverting) form from the selected inputs. The 74AHC257-Q100; 74AHCT257-Q100 is the logic implementation of a 4-pole 2-position switch. The logic levels applied to input S determine the position of the switch. The outputs are forced to a high-impedance OFF-state when OE is HIGH.

The logic equations for the outputs are:

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

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

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

4Y = OE 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.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74AHC257D-Q100 74AHC257D-Q100J 935300735118 SOT109-1 Order product

Features

  • 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 actions
  • Non-inverting data path
  • Inputs accept voltages higher than VCC
  • Input levels:
    • For 74AHC257-Q100: CMOS level
    • For 74AHCT257-Q100: 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)
  • Multiple package options

Target applications

Parametrics

Type numberProduct statusVCC (V)Logic switching levelsOutput drive capability (mA)tpd (ns)Power dissipation considerationsTamb (Cel)Rth(j-a) (K/W)Ψth(j-top) (K/W)Rth(j-c) (K/W)Package name
74AHC257D-Q100Production2.0 - 5.5CMOS+/- 82.9low-40~1259410.353SO16

Package

Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
74AHC257D-Q100
SO16
(SOT109-1)
SOT109-1SO-SOJ-REFLOW
SO-SOJ-WAVE
Reel 13" Q1/T1Active74AHC257D74AHC257D-Q100J
( 9353 007 35118 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRMSLMSL leadfree
74AHC257D-Q10074AHC257D-Q100J74AHC257D-Q100Always Pb-free84.911
Quality and reliability disclaimer

Documentation (10)

File nameTitleTypeDate
74AHC_AHCT257_Q100Quad 2-input multiplexer; 3-stateData sheet2017-05-03
AN11106Pin FMEA for AHC/AHCT familyApplication note2019-01-09
AN223Ground and VCC Bounce of High-Speed Integrated CircuitsApplication note2013-03-13
AN252Live Insertion Aspects of Philips Logic FamiliesApplication note2013-03-13
AN10156Sorting through the low voltage logic mazeApplication note2013-03-13
ahc257ahc257 IBIS modelIBIS model2013-04-07
SO-SOJ-REFLOWFootprint for reflow solderingReflow soldering2009-10-08
SO-SOJ-WAVEFootprint for wave solderingWave soldering2009-10-08
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

Support

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Models

File nameTitleTypeDate
ahc257ahc257 IBIS modelIBIS model2013-04-07

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
74AHC257D-Q10074AHC257D-Q100J935300735118Reel 13" Q1/T1Order product

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