Nexperia USA Inc. 74LVC1G125GS,132

Overview

74LVC1G125GS,132 from Nexperia is a single 3-state bus buffer/line driver with Schmitt-trigger inputs, operating from 1.65 V to 5.5 V supply, supporting mixed-voltage translation between 3.3 V and 5 V systems, delivering ±24 mA output drive at 3.0 V, and featuring IOFF partial power-down protection for backflow current prevention in powered-down states. It is used in low-power I/O expansion and level-shifting interfaces in portable and industrial control modules.

For engineers reviewing the 74LVC1G125GS,132 datasheet, 74LVC1G125GS,132 pinout, 74LVC1G125GS,132 application, or 74LVC1G125GS,132 equivalent, key selection criteria include its 1.65–5.5 V wide supply range, 3-state enable timing (tdis ≤ 5.5 ns at 5 V), IOFF leakage < ±2 μA during power-down, and XSON6 package compatibility with high-density PCB layouts.

Technical Context

The device implements a non-inverting buffer with active-low 3-state output enable (OE), where logic HIGH on OE disables Y into high-impedance mode. Its Schmitt-trigger inputs tolerate slow-rising signals (Δt/ΔV up to 20 ns/V at 1.65 V), enabling robust interfacing with mechanical switches or noisy sensor outputs.

IOFF circuitry actively disconnects both input and output terminals when VCC = 0 V, limiting power-off leakage to ±2 μA while preventing destructive backfeed current-critical for hot-swap and partial-system shutdown architectures.

Key Specifications

Pinout & Package

XSON6 plastic extremely thin small outline package (SOT1202), no leads, 6 terminals, body size 1.0 × 1.0 × 0.35 mm, thermal enhanced for high-density routing and reflow-compatible side-wettable flanks absent (unlike SOT8065-1).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus buffer applications.

Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the 74LVC1G125GS,132 uniquely balances compact XSON6 packaging, guaranteed IOFF behavior, and ±24 mA drive-making it optimal for thermally constrained, multi-rail industrial and automotive control designs requiring fail-safe power sequencing.

Availability

74LVC1G125GS,132 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable device I/O expansion, automotive body control modules, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC1G125GS,132 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 logic, discrete, and MOSFET solutions optimized for automotive, industrial, and mobile markets.

The 74LVC logic family targets low-voltage, high-speed digital interfacing with robust noise immunity and mixed-voltage compatibility-designed specifically for space- and power-constrained embedded control systems.

FAQ

What is the maximum clock frequency supported by the 74LVC1G125GS,132?

The device does not operate as a clocked element but as a combinational buffer. Its propagation delay is 0.5–4.5 ns (VCC = 3.0–3.6 V), enabling reliable use in data paths up to ~200 MHz. Maximum usable frequency depends on load capacitance and signal edge rate-not a fixed clock limit.

Can the 74LVC1G125GS,132 be used to translate 5 V signals to a 1.8 V microcontroller?

Yes-the inputs are overvoltage tolerant up to 5.5 V regardless of VCC. With VCC = 1.8 V, it accepts 5 V inputs and outputs logic levels compatible with 1.8 V CMOS thresholds (VOH > 1.2 V, VOL < 0.45 V at 4 mA), satisfying JEDEC JESD8-7 compliance.

Does the 74LVC1G125GS,132 require external pull-up or pull-down resistors on OE or A?

No-OE and A have no internal weak pull resistors. External biasing is required only if floating states must be avoided (e.g., tie OE to GND via 10 kΩ for always-enabled operation). Unbiased inputs may cause undefined output behavior per functional table.

How does the IOFF feature behave during brown-out conditions?

IOFF activates when VCC drops below ~0.8 V, disabling I/O paths and limiting leakage to ±2 μA. This prevents back-current from higher-voltage rails (e.g., 5 V peripherals) into a partially powered 1.8 V domain-critical for controlled power-down sequencing in multi-supply systems.