NXP Semiconductors 74LVC1G32GS,132

Overview

74LVC1G32GS,132 from Nexperia is a single 2-input OR gate logic IC in XSON6 package (SOT1202), operating from 1.65 V to 5.5 V supply, featuring Schmitt-trigger inputs for noise immunity, IOFF partial power-down protection, and ±24 mA output drive at 3.0 V - used in voltage-level translation between 3.3 V and 5 V subsystems in industrial control I/O interfaces.

For engineers reviewing the 74LVC1G32GS,132 datasheet, 74LVC1G32GS,132 pinout, 74LVC1G32GS,132 application, or 74LVC1G32GS,132 equivalent, key selection criteria include input overvoltage tolerance to 5.5 V, guaranteed operation from –40 °C to +125 °C, propagation delay ≤6.0 ns at 3.3 V, IOFF-enabled bus isolation, and compatibility with TTL-level inputs.

Technical Context

The device implements a standard positive-logic OR function (Y = A + B) with Schmitt-trigger inputs enabling robust operation under slow-rising or noisy signal conditions. Its IOFF circuit actively disables outputs when VCC = 0 V, preventing backflow current during partial power-down sequences in mixed-voltage systems.

It supports dual-supply translation: inputs tolerate up to 5.5 V independent of VCC, allowing direct connection to 5 V drivers while powered from 3.3 V or lower rails. The logic core uses CMOS technology with latch-up immunity exceeding 250 mA per JEDEC JESD78.

Key Specifications

Pinout & Package

XSON6 package (SOT1202): plastic extremely thin small outline, no leads, 6 terminals, body size 1.0 × 1.0 × 0.35 mm, thermal pad exposed on bottom, pin 1 marked by index area at lower-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G32DBVR, the 74LVC1G32GS,132 saves >35% PCB area and enables finer-pitch assembly; versus 74AUP1G32GW,125, it trades 3.5 ns speed for 5 V input tolerance and broader supply flexibility - critical for mixed-voltage industrial designs.

Availability

74LVC1G32GS,132 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, medical diagnostic equipment, and consumer IoT hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC1G32GS,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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and computing applications.

The 74LVC logic family targets space-constrained, mixed-voltage digital systems requiring robust level translation, low power, and extended temperature operation - with the 74LVC1G32GS,132 specifically engineered for high-density PCB layouts using ultra-thin XSON6 packaging.

FAQ

Can 74LVC1G32GS,132 interface directly with 5 V microcontrollers while powered from 3.3 V?

Yes. Its inputs tolerate up to 5.5 V regardless of VCC, and VIH is specified down to 0.7×VCC - so at VCC = 3.3 V, VIH(min) = 2.31 V, safely recognizing 5 V logic HIGH. No external resistors or translators are needed, simplifying design and reducing BOM count.

What is the purpose of the n.c. pin (Pin 5) in the SOT1202 package?

Pin 5 is internally unconnected and serves no electrical function. It must not be soldered to a net or used as a thermal pad. Per Nexperia layout guidelines, it should remain floating or be tied to GND only if required for mechanical stability - never to VCC or signal lines.

Does the IOFF feature protect against back-current when only one supply rail is active?

Yes. When VCC = 0 V, the IOFF circuit forces Y, A, and B into high-impedance states, blocking current flow from powered inputs (e.g., 5 V sensors) into the unpowered device. This prevents damage during hot-swap, partial power-down, or mismatched supply sequencing in multi-rail systems.

How does Schmitt-trigger input action improve noise immunity in real-world applications?

Schmitt-trigger inputs provide hysteresis (~0.3 V typical), meaning the threshold for detecting a rising edge (VIH) is higher than for a falling edge (VIL). This prevents multiple toggles from slow or noisy edges - e.g., rejecting >100 ns contact bounce on mechanical switches or EMI-induced ringing on long traces without added RC filtering.