NXP Semiconductors 74LVC332DJ

Overview

74LVC332DJ from NXP Semiconductors is a triple 3-input OR gate logic IC designed for level translation between 3.3 V and 5 V systems, featuring Schmitt-trigger inputs for noise immunity, 1.2 V to 3.6 V supply operation, 5.5 V-tolerant inputs, and operation across −40 °C to +125 °C. It serves as a robust combinatorial logic element in mixed-voltage digital interfaces.

For engineers reviewing the 74LVC332DJ datasheet, 74LVC332DJ pinout, 74LVC332DJ application, or 74LVC332DJ equivalent, key selection considerations include input voltage tolerance (up to 5.5 V), propagation delay (as low as 0.8 ns at 3.0–3.6 V), output drive capability (±24 mA), thermal stability over −40 °C to +125 °C, and SO14 package compatibility with legacy PCB footprints.

Technical Context

The 74LVC332DJ implements three independent 3-input OR gates in a single SO14 package, each with Schmitt-trigger inputs enabling reliable operation with slow-rising or noisy signals. Its CMOS architecture ensures low static power consumption while supporting TTL-level interfacing.

It operates across a wide V_CC range (1.2 V–3.6 V) and accepts input voltages up to 5.5 V regardless of supply level-enabling bidirectional voltage translation without external components. The device complies with JEDEC standards JESD8-7A, JESD8-5A, and JESD8-C/JESD36 for interoperability across multiple supply domains.

Key Specifications

Pinout & Package

74LVC332DJ uses the SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, and standard JEDEC MS-012 footprint compatible with automated assembly.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar triple 3-input OR gate applications.

Compared with SN74LVC332APW and 74AHC332D, the 74LVC332DJ uniquely combines 5.5 V input tolerance with 1.2 V minimum supply support and SO14 packaging - making it the sole option for industrial mixed-voltage interface applications requiring legacy footprint compatibility.

Availability

74LVC332DJ is available at Aetrix Electronics and suitable for industrial control interfaces, microcontroller I/O expansion, mixed-voltage sensor hubs, and legacy system integration requiring stable component supply across extended temperature ranges.

Supply support for 74LVC332DJ 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 is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.

The 74LVC332DJ belongs to NXP's LVC (Low-Voltage CMOS) logic family, engineered for low-power, high-noise-immunity digital interfacing in multi-supply environments - particularly targeting industrial automation and embedded control systems.

FAQ

What is the maximum input voltage the 74LVC332DJ can accept?

74LVC332DJ accepts input voltages up to 5.5 V regardless of V_CC level, enabling direct connection to 5 V logic sources without external level-shifting circuitry. This specification is verified per Table 4 (Limiting Values) in the NXP datasheet Rev. 1 (2013), and applies to all input pins (1A–3C). Operation remains valid even when V_CC is as low as 1.2 V.

Does the 74LVC332DJ support operation at 1.8 V supply?

Yes, the 74LVC332DJ is fully specified for operation at 1.8 V, falling within its 1.2 V to 3.6 V recommended V_CC range (Table 5). At 1.8 V, VIH is 0.65 × V_CC = 1.17 V and VIL is 0.35 × V_CC = 0.63 V, ensuring reliable switching with 1.8 V logic families. Static and dynamic characteristics including propagation delay and drive strength are guaranteed across this condition.

Is the 74LVC332DJ pin-compatible with other 74LVC-series triple OR gates?

Yes, the 74LVC332DJ shares identical pinout (SO14) and logic function with all variants in the 74LVC332 family (e.g., 74LVC332D, 74LVC332DB, 74LVC332PW), differing only in package type. Pin assignments for inputs (1A–3C), outputs (1Y–3Y), GND (pin 7), and V_CC (pin 14) are standardized per Figure 4 of the NXP datasheet, enabling direct PCB footprint reuse across package variants.

What is the operating temperature range for the 74LVC332DJ?

The 74LVC332DJ is rated for operation from −40 °C to +125 °C, as confirmed in Table 1 (Ordering Information) and Table 5 (Recommended Operating Conditions). This extended industrial temperature range is validated for both static and dynamic performance, including propagation delay, output drive, and input threshold stability - making it suitable for under-hood automotive auxiliary modules and factory-floor controllers.

How does the Schmitt-trigger input feature benefit system design with the 74LVC332DJ?

The Schmitt-trigger action on all inputs of the 74LVC332DJ provides hysteresis (typically ~0.3 V at 3.3 V supply), which rejects noise and prevents false triggering from slow-rising signals such as those from mechanical switches, thermistors, or long PCB traces. This eliminates the need for external RC filtering or debouncing firmware, simplifying hardware design and improving reliability in electrically noisy industrial environments.