Nexperia USA Inc. 74AHC08BQ,115

Overview

74AHC08BQ,115 from Nexperia is a quad 2-input AND gate IC in DHVQFN14 package (SOT762-1), operating from 2.0 V to 5.5 V supply, featuring overvoltage-tolerant inputs up to 5.5 V, balanced propagation delays (≤7.5 ns at 5 V/50 pF), and Schmitt-trigger input action for noise immunity. It serves as a level-translating logic gate in mixed-voltage digital interfaces such as microcontroller I/O expansion and FPGA peripheral control.

For engineers reviewing the 74AHC08BQ,115 datasheet, 74AHC08BQ,115 pinout, 74AHC08BQ,115 application, or 74AHC08BQ,115 equivalent, key selection criteria include its CMOS-level input compatibility, thermal-enhanced QFN package for high-density PCB layouts, -40 °C to +125 °C industrial temperature rating, and verified 14-terminal pin mapping with GND and VCC placement optimized for signal integrity.

Technical Context

The 74AHC08BQ,115 implements four independent 2-input AND functions with identical electrical behavior per gate. Its inputs accept voltages up to 5.5 V regardless of VCC (2.0–5.5 V), enabling robust voltage translation between 3.3 V and 5 V domains without external biasing.

Each gate exhibits matched tPLH/tPHL propagation delays (≤7.5 ns at VCC = 5.0 V, CL = 50 pF), low static ICC (≤40 μA at VCC = 5.5 V), and input hysteresis via integrated Schmitt-trigger action-critical for cleaning noisy control signals in industrial sensor interfaces and power sequencing circuits.

Key Specifications

Pinout & Package

DHVQFN14 package (SOT762-1): 2.5 mm × 3.0 mm × 0.85 mm body, 0.5 mm pitch, 14 terminals, exposed thermal pad (non-soldered by default), 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 74AHCT08BQ,115, the 74AHC08BQ,115 provides higher noise immunity via Schmitt inputs and broader VCC flexibility, while SN74AHC08QPWRQ1 trades thermal efficiency for automotive certification-making the original optimal for industrial high-density layouts requiring robust voltage translation.

Availability

74AHC08BQ,115 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and FPGA-based test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHC08BQ,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, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74AHC08BQ,115 belongs to Nexperia's AHC logic family-designed specifically for low-power, high-speed, mixed-voltage digital interfacing in space- and thermal-constrained applications.

FAQ

Can 74AHC08BQ,115 operate reliably at 2.0 V supply?

Yes. The 74AHC08BQ,115 is fully specified down to 2.0 V VCC, with guaranteed VIH = 1.5 V and VOL ≤ 0.36 V at IO = 4.0 mA. Propagation delay increases to ≤11.0 ns at 2.0 V/50 pF, but logic functionality remains intact across the full industrial temperature range.

Is the exposed thermal pad on the DHVQFN14 package required to be soldered?

No. Per Nexperia's datasheet (SOT762-1 footnote), the thermal pad is not electrically connected and has no mechanical or electrical requirement to be soldered. If soldered, it must remain floating or be tied to GND-never left unconnected in a thermal-relief pattern that impedes heat transfer.

How does the Schmitt-trigger action improve noise immunity?

The Schmitt-trigger input provides ≥0.3 V hysteresis (difference between VIH and VIL thresholds), meaning a rising input must exceed VIH to register HIGH, and falling input must drop below VIL to register LOW. This prevents multiple toggles during slow or noisy transitions-critical for switch debouncing and long-trace industrial signaling.

What is the maximum output current per pin?

The 74AHC08BQ,115 delivers ±8.0 mA per output (VOH/VOL tested at IO = ±8.0 mA), with VOL ≤ 0.55 V and VOH ≥ 3.7 V at VCC = 4.5 V and -40 °C to +125 °C. Exceeding this current risks violating output voltage specs or exceeding total package power limits.