NXP Semiconductors 74LVC1G157GV/S505125

Overview

74LVC1G157GV/S505125 from Nexperia is a single 2-input CMOS multiplexer with Schmitt-trigger inputs, IOFF partial power-down protection, and 1.65 V to 5.5 V supply operation. It enables level translation between 3.3 V and 5 V logic domains in mixed-voltage systems and supports industrial temperature range (−40 °C to +125 °C). Its ±24 mA output drive at 3.0 V and 5.0 ns max propagation delay at 5 V make it suitable for high-speed signal routing in compact embedded interfaces.

For engineers reviewing the 74LVC1G157GV/S505125 datasheet, 74LVC1G157GV/S505125 pinout, 74LVC1G157GV/S505125 application, or 74LVC1G157GV/S505125 equivalent, this page delivers verified functional identity, validated SC-74 (SOT457) package mapping, confirmed 6-pin terminal assignment, real-world timing and drive specifications, and two rigorously cross-checked alternative parts for voltage-level multiplexing use cases.

Technical Context

This device implements a single-pole double-throw (SPDT) analog/digital multiplexer function using standard CMOS logic gates with Schmitt-trigger input buffers. The select input (S) determines whether I0 or I1 passes to the Y output, with no internal latching or clocking-operation is purely combinational and asynchronous.

IOFF circuitry actively disables the output stage when VCC = 0 V, blocking backflow current during hot-insertion or partial system power-down. Inputs tolerate up to 5.5 V regardless of VCC, enabling robust interfacing with higher-voltage peripherals without external clamping.

Key Specifications

Pinout & Package

74LVC1G157GV/S505125 uses the SC-74 (SOT457) surface-mount package: plastic, 6-lead, body size 3.1 mm × 1.7 mm × 1.1 mm, with gull-wing leads and pin 1 indicator below marking code 'YP'.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC1G157GV/S505125, the GW variant offers superior thermal margin in the same functional class, while the SN74LVC1G157DBVR trades off IOFF and overvoltage tolerance for lower unit cost-making the GV the optimal balance of robustness, miniaturization, and mixed-voltage interoperability.

Availability

74LVC1G157GV/S505125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB-C port controllers, IoT edge node data aggregation, and automotive body control modules requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVC1G157GV/S505125 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions optimized for efficiency and miniaturization in consumer, industrial, and automotive markets.

The 74LVC1G157 family is designed for space-constrained, mixed-voltage digital signal routing-emphasizing level translation, low-power operation, and robustness in real-world PCB environments with noise, thermal stress, and partial power conditions.

FAQ

What is the maximum input voltage allowed on 74LVC1G157GV/S505125 pins when VCC = 1.8 V?

The 74LVC1G157GV/S505125 supports overvoltage-tolerant inputs up to 5.5 V regardless of VCC level. When powered from 1.8 V, all inputs (I0, I1, S) may safely accept 0 V to 5.5 V signals without damage or clamping diode conduction-enabling direct connection to 5 V microcontrollers or sensors without external protection.

Does 74LVC1G157GV/S505125 support partial power-down mode, and how does it behave when VCC = 0 V?

Yes, 74LVC1G157GV/S505125 features IOFF circuitry that places the output (Y) in a high-impedance state and limits power-off leakage current to ±2 μA max when VCC = 0 V. This prevents backflow current from live inputs (I0/I1/S) into the unpowered device, making it safe for hot-swap and modular power architectures.

What is the propagation delay of 74LVC1G157GV/S505125 at 3.3 V supply and 25 °C?

At VCC = 3.3 V and Tamb = 25 °C, the typical propagation delay (tpd) of 74LVC1G157GV/S505125 is 2.7 ns, with a maximum of 6.3 ns across the −40 °C to +125 °C operating range. This ensures reliable operation in 100+ MHz digital control loops and high-speed data selection paths.

Can 74LVC1G157GV/S505125 be used as a level translator between 1.8 V and 5 V logic domains?

Yes, 74LVC1G157GV/S505125 functions as a bidirectional level translator: its inputs accept 0 V to 5.5 V independently of VCC, and its output swings rail-to-rail (0 V to VCC). When VCC = 1.8 V, it translates 5 V inputs to 1.8 V outputs; when VCC = 5 V, it translates 1.8 V inputs to 5 V outputs-no external components required.

What package type is used by 74LVC1G157GV/S505125, and what are its key mechanical dimensions?

74LVC1G157GV/S505125 uses the SC-74 (SOT457) package: plastic surface-mounted, 6-lead gull-wing, body size 3.1 mm × 1.7 mm × 1.1 mm, lead pitch 0.95 mm. Pin 1 is located at the lower-left corner beneath the 'YP' marking, and the package is optimized for reflow soldering and automated optical inspection.