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74LVC257ADB

Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state

The 74LVC257A is a quad 2-input multiplexer; 3-state. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V environments.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

This device is fully specified for partial power down applications using IOFF. The IOFF circuitry disables the output, preventing the potentially damaging backflow current through the device when it is powered down.

This product has been discontinued

Features and benefits

  • Overvoltage tolerant inputs to 5.5 V

  • Wide supply voltage range from 1.2 V to 3.6 V

  • CMOS low-power consumption

  • Direct interface with TTL levels

  • Output drive capability 50 Ω transmission lines at 85 °C

  • IOFF circuitry provides partial Power-down mode operation

  • Complies with JEDEC standard:

    • JESD8-7A (1.65 V to 1.95 V)

    • JESD8-5A (2.3 V to 2.7 V)

    • JESD8-C/JESD36 (2.7 V to 3.6 V)

  • ESD protection:

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

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

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

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

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
74LVC257ADB 74LVC257ADB,112
(935260679112)
Obsolete no package information
74LVC257ADB,118
(935260679118)
Obsolete

Environmental information

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
74LVC257ADB 74LVC257ADB,112 74LVC257ADB rohs rhf rhf
74LVC257ADB 74LVC257ADB,118 74LVC257ADB rohs rhf rhf
Quality and reliability disclaimer

Documentation (5)

File name Title Type Date
74LVC257A Quad 2-input multiplexer with 5 V tolerant inputs/outputs; 3-state Data sheet 2024-01-24
AN11009 Pin FMEA for LVC family Application note 2019-01-09
AN263 Power considerations when using CMOS and BiCMOS logic devices Application note 2023-02-07
lvc257a lvc257a IBIS model IBIS model 2013-04-08
lvc lvc Spice model SPICE model 2013-05-07

Support

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Models

File name Title Type Date
lvc257a lvc257a IBIS model IBIS model 2013-04-08
lvc lvc Spice model SPICE model 2013-05-07

PCB Symbol, Footprint and 3D Model

Model Name Description

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.