Nexperia USA Inc. 74ALVC32PW,118

Overview

74ALVC32PW,118 from Nexperia is a quad 2-input OR gate logic IC with Schmitt-trigger inputs, IOFF partial power-down protection, and operation across 1.65 V to 3.6 V supply. It delivers propagation delay as low as 2.0 ns at 3.0–3.6 V, supports -40 °C to +125 °C ambient, and features overvoltage-tolerant inputs up to 3.6 V-used in level-shifting interfaces between mixed-voltage digital subsystems.

For engineers reviewing the 74ALVC32PW,118 datasheet, 74ALVC32PW,118 pinout, 74ALVC32PW,118 application, or 74ALVC32PW,118 equivalent, key selection criteria include IOFF-enabled bus isolation during power sequencing, Schmitt-trigger noise immunity on slow-rising control signals, guaranteed timing at 125 °C, and TSSOP14 footprint compatibility with space-constrained PCB layouts.

Technical Context

This device implements four independent OR gates with Schmitt-trigger input thresholds-enabling robust operation with slow or noisy input edges. Each gate exhibits hysteresis (typically ~0.3 V at VCC = 3.3 V), improving noise margin beyond standard CMOS inputs.

The IOFF circuit actively disables outputs when VCC = 0 V, limiting backflow current to ≤ ±10 μA (max) and enabling hot-insertion and partial power-down in multi-rail systems. Input tolerance to 3.6 V allows direct interfacing with 3.3 V or 2.5 V drivers while powered from 1.8 V rails.

Key Specifications

Pinout & Package

TSSOP14 package (SOT402-1): plastic thin shrink small outline, 14 leads, body width 4.4 mm, 0.65 mm lead pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC32APWR and 74AUP1G32GW,125, the 74ALVC32PW,118 uniquely combines Schmitt-trigger noise immunity, IOFF-enabled bus hold, and full quad integration in one TSSOP14 package-making it optimal for mixed-signal interface consolidation in thermally demanding environments.

Availability

74ALVC32PW,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump UIs, and 5G small cell baseband boards requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74ALVC32PW,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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74ALVC series targets high-speed, low-voltage logic interfacing with emphasis on robustness in mixed-rail systems-designed specifically for signal integrity preservation in noise-prone embedded control and communications infrastructure.

FAQ

Does 74ALVC32PW,118 support true bidirectional operation?

No. The 74ALVC32PW,118 is a unidirectional OR gate with dedicated inputs (1A/1B, etc.) and outputs (1Y, etc.). It lacks bus transceiver functionality or direction-control pins. Its IOFF feature only disables outputs during power-down-it does not enable reverse signal flow or three-state bidirectional data transfer.

Can this device operate reliably at 1.65 V with 24 mA output drive?

No. At VCC = 1.65 V, the maximum guaranteed output sink current is 6 mA (VOL ≤ 0.3 V). Driving 24 mA requires VCC ≥ 2.3 V per static characteristics table. Attempting 24 mA at 1.65 V violates recommended operating conditions and risks undefined output voltage and excessive power dissipation.

Is the exposed pad on the TSSOP14 package electrically connected?

No. The thermal pad on SOT402-1 (TSSOP14) is not electrically connected to any internal node. Per datasheet Section 5.1, it may be left floating or soldered to GND-but must not be connected to VCC or any other voltage. No internal bond wires attach to it; its sole purpose is thermal conduction.

How does the IOFF feature behave when VCC is ramping from 0 V to nominal?

IOFF activates when VCC falls below ~0.8 V and remains active until VCC exceeds ~1.2 V. During this window, outputs are high-impedance regardless of input states. This prevents backflow from powered downstream logic into the unpowered IC-critical for hot-plug and staggered power-up sequences in modular systems.