Nexperia USA Inc. 74VHCT02D,118

Overview

74VHCT02D,118 from Nexperia is a quad 2-input NOR gate IC in SO14 package, operating at 4.5 V to 5.5 V supply with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max), propagation delay of 3.8–5.5 ns (CL = 15 pF), and rated for -40 °C to +125 °C. It serves as a logic-level combinatorial gate in digital control subsystems, bus arbitration circuits, and enable/disable logic in industrial microcontroller interfaces.

For engineers reviewing the 74VHCT02D,118 datasheet, 74VHCT02D,118 pinout, 74VHCT02D,118 application, or 74VHCT02D,118 equivalent, key selection criteria include TTL-level input compatibility, SO14 thermal performance at 125 °C ambient, guaranteed 8 mA output drive strength, and Schmitt-trigger input noise immunity on all inputs.

Technical Context

This device implements four independent 2-input NOR gates using high-speed Si-gate CMOS technology compliant with JEDEC Std 7-A and pin-compatible with LSTTL. Each gate features Schmitt-trigger action on both inputs, enabling robust noise rejection in noisy industrial environments.

It operates strictly within TTL input voltage thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) while delivering CMOS-level output swing (VOH ≥ 3.7 V at 8 mA, VOL ≤ 0.55 V at 8 mA) at VCC = 4.5–5.5 V. Input clamping current rating is ±20 mA, and static supply current remains below 40 μA over full temperature range.

Key Specifications

Pinout & Package

74VHCT02D,118 uses the SOT108-1 (SO14) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, and JEDEC MS-012 compliant footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad 2-input NOR gate applications.

Compared with 74VHC02D,118 and SN74LS02DR, the 74VHCT02D,118 uniquely balances TTL input compatibility with CMOS power efficiency and speed-making it optimal for upgrading legacy systems without redesigning signal integrity or thermal management.

Availability

74VHCT02D,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, motor control enable logic, and microcontroller bus arbitration requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74VHCT02D,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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions, with manufacturing rooted in process control and automotive-grade quality systems.

The 74VHCT series targets industrial and consumer applications needing TTL-compatible logic with CMOS efficiency, specifically designed for seamless integration into mixed-signal control systems operating beyond 85 °C.

FAQ

What is the maximum recommended operating frequency for 74VHCT02D,118?

The device does not specify a maximum clock frequency, but its typical propagation delay of 3.8 ns (CL = 15 pF) supports reliable toggling up to approximately 100 MHz in non-critical timing paths. For synchronous systems, design margins should account for worst-case 7.0 ns delay, temperature variation, and load capacitance above 15 pF.

Can 74VHCT02D,118 safely interface with 3.3 V logic outputs?

No - its TTL input thresholds require minimum VIH = 2.0 V, but 3.3 V logic outputs typically meet this. However, VOH at 8 mA load drops to 3.7 V (min), which may fall below the VIH requirement of downstream 5 V CMOS devices. Use level-shifting or ensure receiving device accepts 3.7 V as HIGH.

Is the SO14 package of 74VHCT02D,118 RoHS-compliant and lead-free?

Yes - Nexperia's SOT108-1 package for 74VHCT02D,118 is fully RoHS-compliant and lead-free, with matte tin (Sn) termination finish and halogen-free molding compound, meeting JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) for unlimited floor life.

Does 74VHCT02D,118 require external pull-up or pull-down resistors on unused inputs?

No - all inputs feature Schmitt-trigger action and defined logic thresholds. Unused inputs must be tied to VCC or GND to prevent floating states and excessive ICC; leaving them unconnected risks increased power consumption and potential oscillation due to noise coupling.