NXP Semiconductors 74LVT32D,118

Overview

74LVT32D,118 from NXP Semiconductors (formerly Philips) is a 3.3 V quad 2-input OR gate logic IC in a 14-pin SO package. It delivers propagation delays of 2.6 ns (tPLH) and 3.2 ns (tPHL) at VCC = 3.3 V with CL = 50 pF, supports –40 °C to +85 °C operation, and drives up to 32 mA low-level output current - used in high-speed bus interface and level-shifting logic stages.

For engineers reviewing the 74LVT32D,118 datasheet, 74LVT32D,118 pinout, 74LVT32D,118 application, or 74LVT32D,118 equivalent, key selection criteria include its LVT-family 3.3 V CMOS compatibility, guaranteed AC performance across industrial temperature range, input/output voltage tolerance up to 5.5 V, and SO14 package footprint for board space-constrained digital control subsystems.

Technical Context

The 74LVT32D,118 implements four independent 2-input OR gates using advanced BiCMOS LVT (Low-Voltage TTL) technology, enabling interoperability between 3.3 V logic and legacy 5 V systems. Its inputs tolerate 5.5 V, outputs drive ±32 mA, and it features low input capacitance (3 pF) and fast edge rates (≤2.5 ns rise/fall).

This device operates within a 2.7 V to 3.6 V supply range and meets IEEE/IEC standard logic symbols and function tables. It is not designed for open-drain or three-state operation - all outputs are push-pull, non-inverting, and fully specified for both high- and low-level DC output voltage under load.

Key Specifications

Pinout & Package

74LVT32D,118 is housed in a 14-pin plastic small outline (SO) package per SOT108-1, 3.9 mm body width, with standard JEDEC MS-012AC footprint and gull-wing leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar OR gate logic applications.

Compared with SN74LVC32APWR and 74ALVC32MTCX, the 74LVT32D,118 offers superior output drive (64 mA sink) and faster typical propagation delay (2.6 ns), making it preferred for industrial bus arbitration and high-fanout logic where timing margin and load capacity are critical.

Availability

74LVT32D,118 is available at Aetrix Electronics and suitable for industrial automation controllers, telecom line cards, and embedded instrumentation requiring stable component supply and long-term obsolescence management.

Supply support for 74LVT32D,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

NXP Semiconductors, headquartered in Eindhoven, Netherlands, develops high-performance analog and logic ICs for automotive, industrial, and communication markets with emphasis on reliability and longevity.

The 74LVT32D,118 belongs to NXP's legacy LVT logic family, engineered specifically for robust 3.3 V system interfacing with backward compatibility to 5 V TTL signaling and high-noise-immunity operation in factory-floor environments.

FAQ

What is the maximum recommended supply voltage for 74LVT32D,118?

The absolute maximum DC supply voltage for 74LVT32D,118 is +4.6 V, but the recommended operating range is strictly 2.7 V to 3.6 V. Operation above 3.6 V risks exceeding internal oxide breakdown limits and invalidates parametric guarantees - sustained use at 4.0 V or higher may cause accelerated wear-out or functional failure. Always regulate VCC within the recommended window for full 74LVT32D,118 specification compliance.

Can 74LVT32D,118 inputs safely connect to a 5 V microcontroller GPIO?

Yes - the 74LVT32D,118 inputs are rated for VI up to 5.5 V and feature integrated clamp diodes, allowing direct connection to 5 V logic without external protection. This is explicitly confirmed in the Absolute Maximum Ratings table and DC Electrical Characteristics. The 74LVT32D,118 thus serves reliably as a 5 V-to-3.3 V interface element, provided VCC remains at 3.3 V and input current stays within ±10 µA leakage limits.

Does 74LVT32D,118 support three-state or open-drain outputs?

No - the 74LVT32D,118 has standard push-pull CMOS outputs with no enable/disable control or high-impedance state. All four Yn outputs are permanently active and configured as non-inverting OR gates. There is no OE (output enable) pin, no three-state functionality, and no open-drain option in this variant. If bus-sharing or wired-OR topology is required, external circuitry or a different part number (e.g., 74LVT244) must be used instead of 74LVT32D,118.

What is the thermal resistance (θJA) of the 74LVT32D,118 in SO14 package?

The datasheet does not specify θJA for 74LVT32D,118. However, based on the SOT108-1 package construction (plastic SO, 3.9 mm body width), industry-standard JEDEC JESD51-2 modeling yields θJA ≈ 110 °C/W on a 1-layer 1 in² copper pad. For thermal design, assume junction temperature rise ≤11 °C at 100 mW dissipation. Full thermal validation requires PCB-specific simulation - the 74LVT32D,118 itself has no built-in thermal shutdown and relies on board-level heatsinking.

Is 74LVT32D,118 RoHS compliant and lead-free?

Yes - 74LVT32D,118 is manufactured in accordance with EU RoHS Directive 2011/65/EU and is lead-free. The "118" suffix denotes tape-and-reel packaging per AEC-Q200-compliant logistics, and the SO14 body uses matte tin (Sn) lead finish. NXP confirms full compliance in its product change notices dated post-2006, and material declarations are available via NXP's official product page for 74LVT32D,118.