Nexperia USA Inc. 74LVC257APW,118

Overview

74LVC257APW,118 from Nexperia is a quad 2-input 3-state multiplexer IC with 5 V tolerant inputs/outputs, operating from 1.2 V to 3.6 V supply, supporting mixed-voltage translation between 3.3 V and 5 V systems, featuring Schmitt-trigger inputs for noise immunity and IOFF partial power-down protection. It is used in digital logic routing, bus arbitration, and level-shifting applications in industrial control and embedded interface subsystems.

For engineers reviewing the 74LVC257APW,118 datasheet, 74LVC257APW,118 pinout, 74LVC257APW,118 application, or 74LVC257APW,118 equivalent, key selection considerations include its 5 V tolerance on all I/O pins, guaranteed operation up to +125 °C, 3-state output enable (active LOW), propagation delay as low as 2.4 ns at 3.3 V, and compliance with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36.

Technical Context

The device implements four independent 2:1 multiplexers sharing a common select (S) and active-low output enable (OE) control line. Each channel routes either input I0 or I1 to its corresponding 3-state output Y based on S state, with outputs placed in high-impedance when OE is HIGH.

Its IOFF circuitry ensures zero backflow current during partial power-down by disabling outputs when VCC = 0 V, while Schmitt-trigger inputs provide hysteresis (typ. 0.3 V) to tolerate slow-rising signals and improve noise margin in noisy environments.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, body width 4.4 mm, 0.65 mm pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input multiplexer applications.

Compared with SN74LVC257APWR, the 74LVC257APW,118 offers lower static current and tighter IOFF specification; compared with 74LVCH257APW,118, it lacks bus-hold but delivers marginally faster switching and lower dynamic power due to reduced input capacitance.

Availability

74LVC257APW,118 is available at Aetrix Electronics and suitable for industrial automation, embedded instrumentation, and communications interface design requiring stable component supply, extended temperature operation, and robust mixed-voltage interoperability.

Supply support for 74LVC257APW,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert headquartered in Nijmegen, Netherlands, specializing in high-volume, high-reliability logic, analog, and MOSFET solutions for industrial, consumer, and automotive markets.

The 74LVC series targets low-voltage, high-speed CMOS logic applications where power efficiency, voltage flexibility, and robust I/O tolerance are critical-designed specifically for mixed-supply digital systems demanding interoperability across 1.2 V to 5 V domains.

FAQ

Can 74LVC257APW,118 operate with VCC = 1.2 V while accepting 5 V inputs?

Yes. The device is explicitly rated for 5.5 V input tolerance across its full 1.2 V–3.6 V VCC range. At VCC = 1.2 V, VIH is guaranteed at 1.08 V and VIL at 0.12 V, while inputs remain safe up to 5.5 V per absolute maximum ratings. This enables true level translation without external components.

What happens to outputs when OE is HIGH and VCC is powered down to 0 V?

When VCC = 0 V and OE is HIGH, the IOFF circuit activates, forcing all outputs into high-impedance state with leakage current limited to ±10 μA maximum. This prevents back-driving of powered sections and eliminates risk of damage or unintended logic states in partial-power-down configurations.

Is the TSSOP16 package (SOT403-1) lead-free and RoHS compliant?

Yes. The 74LVC257APW,118 uses a lead-free, halogen-free, RoHS-compliant TSSOP16 package (SOT403-1) with matte tin finish on leads. Nexperia confirms full compliance with EU RoHS Directive 2011/65/EU and REACH SVHC requirements, with material declarations available upon request.

How does Schmitt-trigger input action improve system reliability?

Schmitt-trigger inputs provide ≥0.3 V hysteresis, meaning VIH and VIL thresholds differ significantly (e.g., 0.65VCC vs. 0.35VCC at 1.65 V). This rejects noise spikes and accommodates slow-rising signals from mechanical switches or long traces, preventing multiple output transitions during a single input edge and ensuring clean, glitch-free multiplexer selection.