Nexperia USA Inc. 74LVC32AD,118

Overview

74LVC32AD,118 from Nexperia is a quad 2-input OR gate in SO14 (SOT108-1) package, operating from 1.2 V to 3.6 V supply, with overvoltage-tolerant inputs up to 5.5 V and Schmitt-trigger inputs for noise immunity. It enables level translation between 3.3 V and 5 V logic domains in mixed-voltage digital systems such as industrial I/O controllers and FPGA interface buffers.

For engineers reviewing the 74LVC32AD,118 datasheet, 74LVC32AD,118 pinout, 74LVC32AD,118 application, or 74LVC32AD,118 equivalent, this device is selected for low-power, rail-to-rail compatible OR logic with guaranteed operation across -40 °C to +125 °C, fast propagation delay (≤5.0 ns at 3.3 V), and robust ESD protection (HBM >2000 V).

Technical Context

The 74LVC32AD implements four independent OR gates with Schmitt-trigger inputs, enabling reliable switching despite slow-rising or noisy signals. Each gate accepts input voltages up to 5.5 V while powered from as low as 1.2 V, supporting bidirectional voltage translation without external components.

Its CMOS architecture delivers ultra-low static current (≤40 μA at 3.6 V), while dynamic power dissipation is governed by CPD = 11.0 pF at 3.0–3.6 V. Propagation delay is specified down to 1.0 ns (typical) at VCC = 3.3 V, with output skew ≤1.5 ns between any two outputs under identical switching conditions.

Key Specifications

Pinout & Package

74LVC32AD,118 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC32APWR, the 74LVC32AD,118 offers easier hand-soldering and legacy footprint compatibility; versus 74AUP1G32GW,125, it delivers integrated quad functionality with higher drive strength at the cost of higher static current.

Availability

74LVC32AD,118 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC32AD,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 specializing in high-performance, energy-efficient logic, analog, and discrete components, with manufacturing rooted in process innovation and automotive-grade reliability.

The 74LVC series targets high-speed, low-voltage digital interfacing in industrial, computing, and communications equipment, emphasizing voltage translation, noise immunity, and wide operating margins.

FAQ

Can 74LVC32AD,118 operate with a 1.2 V supply and still accept 5 V inputs?

Yes. The device is explicitly rated for input voltages up to 5.5 V regardless of VCC, which may be as low as 1.2 V. This overvoltage tolerance is achieved through internal clamping structures and is validated per JEDEC JESD8 standards. No external protection is required when interfacing 5 V sources to a 1.2 V–powered system.

What is the maximum capacitive load this OR gate can drive while maintaining specified tpd?

The datasheet specifies dynamic characteristics with CL = 30 pF (for VCC ≤ 2.7 V) and CL = 50 pF (for VCC ≥ 2.7 V). At 3.3 V and 50 pF, tpd remains ≤5.0 ns. Driving loads beyond 50 pF increases propagation delay nonlinearly and may degrade edge rates; for >50 pF, buffer staging or reduced slew rate control is recommended.

Does the SO14 package (SOT108-1) have thermal pad exposure or exposed die attach pad?

No. The SOT108-1 package used for 74LVC32AD,118 is a standard plastic small outline with gull-wing leads and no thermal pad. Thermal dissipation relies solely on lead conduction; its Ptot rating is 500 mW at Tamb ≤100 °C, derating linearly at 10.1 mW/K above that temperature.

How does Schmitt-trigger action affect timing behavior compared to standard CMOS inputs?

Schmitt-trigger inputs introduce fixed hysteresis (~0.3 V typical), meaning VIH and VIL thresholds differ by that amount. This prevents oscillation on slow edges but adds no measurable delay to propagation time - tpd values in Table 7 are measured with VI transitions crossing the Schmitt thresholds. Timing analysis must use the appropriate VIH/VIL levels per VCC, not generic CMOS thresholds.