Nexperia USA Inc. 74LVC1G157GW,125

Overview

74LVC1G157GW,125 from Nexperia is a single 2-input CMOS multiplexer with Schmitt-trigger inputs, IOFF partial power-down protection, and dual-voltage translation capability (1.65 V to 5.5 V supply). It selects between two data sources (I0/I1) using a single select input (S), delivering the chosen signal to output Y. Used in mixed-voltage I/O bridging, level-shifting logic interfaces, and low-power signal routing in industrial control and portable electronics.

For engineers reviewing the 74LVC1G157GW,125 datasheet, 74LVC1G157GW,125 pinout, 74LVC1G157GW,125 application, or 74LVC1G157GW,125 equivalent, key selection criteria include its ±24 mA drive strength at 3.0 V, 0.5 ns minimum propagation delay at 5 V, IOFF-enabled backflow prevention during power sequencing, and guaranteed operation from –40 °C to +125 °C in TSSOP6 packaging.

Technical Context

This device implements a single-pole double-throw (SPDT) analog/digital signal switch function using standard LVC logic architecture. Its Schmitt-trigger inputs accept slow-rising signals and tolerate noise up to 30% of VCC, while the IOFF circuit disables output leakage when VCC = 0 V - critical for hot-swap and multi-rail system designs.

It operates across five JEDEC-compliant voltage domains (1.65–1.95 V, 2.3–2.7 V, 2.7–3.6 V, 4.5–5.5 V), supports overvoltage-tolerant inputs up to 5.5 V regardless of VCC, and maintains rail-to-rail output swing with VOL ≤ 0.33 V and VOH ≥ 2.3 V under 24 mA load at 3.0 V.

Key Specifications

Pinout & Package

TSSOP6 plastic thin shrink small outline package (SOT363-2), 6-lead, body width 1.25 mm, 1.1 mm height, lead pitch 0.65 mm - optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G157DBVR, the 74LVC1G157GW,125 offers extended temperature support and identical performance in a TSSOP6 package better suited for automated optical inspection. Versus 74LVC1G3157GW,125, it lacks analog-switch features but delivers lower propagation delay and tighter logic timing margins for pure digital routing.

Availability

74LVC1G157GW,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device power management, automotive body control modules, and test equipment signal routing requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVC1G157GW,125 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 focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVC1G157 belongs to Nexperia's LVC logic family - engineered for low-voltage operation, high noise immunity, and robust power sequencing in space-constrained, thermally demanding applications.

FAQ

Can 74LVC1G157GW,125 operate with 1.8 V supply and 3.3 V inputs?

Yes. The device supports 1.65 V to 5.5 V supply and tolerates input voltages up to 5.5 V regardless of VCC. At VCC = 1.8 V, inputs at 3.3 V are safely clamped and interpreted correctly due to overvoltage-tolerant design - enabling seamless level translation without external components.

What happens to the output when VCC is powered off?

When VCC = 0 V, the IOFF circuitry actively disables the output, limiting leakage current to ±2 μA maximum. This prevents back-current flow from live inputs or outputs into the unpowered device - protecting both the 74LVC1G157GW,125 and connected circuitry during partial power-down or hot-swap events.

Is the 74LVC1G157GW,125 suitable for analog signal switching?

No. It is a digital CMOS multiplexer optimized for logic-level signals. While it can pass analog waveforms within its voltage and bandwidth limits, it lacks break-before-make timing, guaranteed analog linearity, or channel-to-channel isolation specs. For analog routing, use the pin-compatible 74LVC1G3157GW,125 instead.

How does the Schmitt-trigger input improve system reliability?

Schmitt-trigger inputs provide ~0.3 V hysteresis at 3.3 V, rejecting noise and slow edge rates that could cause metastability or false triggering. This is especially valuable for interfacing with mechanical switches, long PCB traces, or noisy sensor outputs - eliminating need for external RC filtering or debounce firmware.