Nexperia USA Inc. 74VHC08BQ,115

Overview

74VHC08BQ,115 from Nexperia is a quad 2-input AND gate IC in DHVQFN14 package, operating at 2.0–5.5 V supply with CMOS logic compatibility, 7.5 ns max propagation delay (VCC = 5.5 V, CL = 50 pF), and -40 °C to +125 °C temperature range-used for digital logic level translation and signal gating in industrial control I/O modules.

For engineers reviewing the 74VHC08BQ,115 datasheet, 74VHC08BQ,115 pinout, 74VHC08BQ,115 application, or 74VHC08BQ,115 equivalent, this page delivers verified pin functions, real-world timing behavior under load, thermal-enhanced QFN packaging details, and direct TTL/CMOS interface compatibility guidance.

Technical Context

This device implements four independent 2-input AND gates using high-speed Si-gate CMOS technology, fully compliant with JEDEC JESD7-A and pin-compatible with LSTTL. It features Schmitt-trigger inputs on all channels, enabling noise-immune signal conditioning for slow-rising or noisy control lines.

Each gate exhibits balanced tPLH/tPHL propagation delays, supports input voltages up to 7.0 V regardless of VCC, and maintains rail-to-rail output swing (VOH ≥ 3.7 V, VOL ≤ 0.55 V at VCC = 4.5 V, IO = ±8 mA) across its full operating temperature range.

Key Specifications

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, exposed thermal pad (non-soldered by default), 14 terminals, pin 1 index area marked on top surface.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74VHC08BQ,115, the 74VHCT08BQ,115 offers TTL-level input compatibility at identical speed and package, while SN74LVC08APWR trades extended temperature and thermal capability for lower-voltage operation and faster typical propagation-making each optimal for distinct system-level voltage and reliability constraints.

Availability

74VHC08BQ,115 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump UI logic, and test equipment signal routing requiring stable component supply across extended temperature and high-reliability production cycles.

Supply support for 74VHC08BQ,115 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 essential efficiency technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74VHC series targets high-speed, low-power CMOS logic replacement in space-constrained and thermally demanding applications-designed specifically for drop-in upgrades from obsolete TTL and earlier CMOS families while maintaining JEDEC-compliant pinouts.

FAQ

Is the exposed thermal pad on the DHVQFN14 package electrically connected?

No-the exposed pad (terminal 1 index area) is not electrically connected to any internal node. Per Nexperia's datasheet, it has no electrical or mechanical requirement to be soldered; if soldered, it must remain floating or be tied to GND to avoid parasitic coupling or thermal stress.

Can 74VHC08BQ,115 safely interface with 5 V inputs while powered from 3.3 V?

Yes. All inputs tolerate up to 7.0 V regardless of VCC, so 5 V signals may be applied directly to 1A–4B pins when VCC = 3.3 V. This eliminates external level-shifting components in mixed-voltage systems, confirmed by VI absolute maximum rating and static characteristics tables.

What is the recommended PCB layout practice for minimizing propagation delay variation?

Place 100 nF ceramic decoupling capacitors within 5 mm of VCC (pin 14) and GND (pin 7), use solid ground planes beneath the DHVQFN14 footprint, and route all input/output traces with matched lengths and controlled impedance (50 Ω) to limit skew below 0.5 ns across the four gates.

Does this device support hot-swap or live-insertion in backplane applications?

No. The 74VHC08BQ,115 lacks hot-swap protection circuitry such as power-up sequencing control or Ioff (power-off isolation). Applying VCC after signal inputs may cause latch-up or excessive ICC due to input clamping current limits-power sequencing must ensure VCC is stable before applying input signals.