NXP Semiconductors 74LVC32ADB,118

Overview

74LVC32ADB,118 from Nexperia is a quad 2-input OR gate logic IC in SSOP14 (SOT337-1) 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 domains and delivers propagation delay as low as 1.0 ns at 3.3 V in industrial temperature range (−40 °C to +125 °C).

For engineers reviewing the 74LVC32ADB,118 datasheet, 74LVC32ADB,118 pinout, 74LVC32ADB,118 application, or 74LVC32ADB,118 equivalent, key selection criteria include input voltage tolerance, propagation delay vs. supply voltage, output drive strength (±24 mA), thermal performance in SSOP14, and compatibility with JEDEC JESD8-7A/5A/C standards.

Technical Context

The 74LVC32ADB,118 implements four independent OR gates using advanced CMOS technology, supporting mixed-voltage system interfacing via 5.5 V-tolerant inputs while powered from as low as 1.2 V. Its Schmitt-trigger inputs accept slow-rising signals (Δt/ΔV down to 10 ns/V at 3.3 V) without oscillation.

All gates share a common VCC (pin 14) and GND (pin 7), with no internal power sequencing requirements. The device complies with JEDEC standards JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V), ensuring interoperability across legacy and modern logic families.

Key Specifications

Pinout & Package

74LVC32ADB,118 uses the SSOP14 (SOT337-1) package: plastic shrink small outline package, 14 leads, body width 5.3 mm, pitch 0.65 mm, height 1.75 mm. Pin 1 index located at top-left corner with notch marking.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVC32ADB,118, the TSSOP14 alternatives offer improved thermal dissipation but require 0.7 mm more board width; the SSOP14 variant remains optimal where Z-height (<1.75 mm) and narrow PCB real estate are critical, such as in compact automotive ECUs or portable test adapters.

Availability

74LVC32ADB,118 is available at Aetrix Electronics and suitable for industrial control logic, automotive body electronics, microcontroller GPIO expansion, and test equipment signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for 74LVC32ADB,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, analog, and discrete components optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74LVC32A series belongs to Nexperia's LVC logic family, designed specifically for low-voltage, mixed-signal interfacing with robust noise immunity and wide supply flexibility in space-constrained systems.

FAQ

Can 74LVC32ADB,118 operate with a 1.2 V supply and still interface with 5 V inputs?

Yes. The device supports VCC as low as 1.2 V while accepting input voltages up to 5.5 V on all A/B pins. This overvoltage tolerance is achieved via internal clamping diodes and does not require external components. Input thresholds scale with VCC, ensuring correct logic interpretation across the full supply range.

What is the maximum capacitive load the outputs can drive reliably at 3.3 V?

At VCC = 3.3 V, the outputs maintain specified VOL ≤ 0.55 V and VOH ≥ 2.2 V while sourcing/sinking up to 24 mA. For capacitive loads, the datasheet specifies dynamic characteristics up to 50 pF with 500 Ω termination. Driving >50 pF requires verifying tpd degradation and potential ringing via simulation or lab measurement.

Does the SSOP14 package (SOT337-1) have exposed thermal pad or special soldering requirements?

No. Unlike QFN variants (e.g., SOT762-1), the SSOP14 package has no exposed thermal pad. Standard reflow profiles for plastic small-outline packages apply. Recommended solder paste stencil aperture is 100% opening with 0.12 mm thickness; peak temperature must not exceed 260 °C for ≤10 seconds.

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

Schmitt-trigger inputs provide hysteresis (typically ≥0.3 V at 3.3 V), meaning the threshold for rising edges (~1.7 V) differs from falling edges (~1.4 V). This prevents multiple toggles during slow or noisy transitions - critical in applications like door switch debouncing or motor stall detection where contact bounce or EMI would otherwise cause false triggers.