Nexperia USA Inc. 74AHC00BQ-Q100X

Overview

74AHC00BQ-Q100 from Nexperia is an automotive-qualified quad 2-input NAND gate in DHVQFN14 package, operating from 2.0 V to 5.5 V supply, with CMOS-level inputs, -40 °C to +125 °C temperature range, and overvoltage-tolerant inputs up to 5.5 V - used for logic-level translation and signal conditioning in automotive body control modules.

For engineers reviewing the 74AHC00BQ-Q100 datasheet, 74AHC00BQ-Q100 pinout, 74AHC00BQ-Q100 application, or 74AHC00BQ-Q100 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, input voltage tolerance beyond VCC, propagation delay ≤7.0 ns at 5 V/50 pF, Schmitt-trigger input hysteresis, and thermal-enhanced DHVQFN packaging for high-reliability under-hood environments.

Technical Context

This device implements four independent 2-input NAND gates with identical logic function and electrical behavior per gate. Each input features Schmitt-trigger action for noise immunity and hysteresis, and all inputs tolerate voltages up to 5.5 V regardless of VCC level - enabling robust interfacing between mixed-voltage subsystems (e.g., 3.3 V MCU driving 5 V legacy peripherals).

It operates across a wide supply range (2.0–5.5 V) with rail-to-rail output swing and supports dynamic operation up to 100 MHz at 5 V with 15 pF load. Propagation delays are balanced between rising and falling edges (tPLH ≈ tPHL), and static current consumption remains below 40 μA at 5.5 V over full temperature range.

Key Specifications

Pinout & Package

DHVQFN14 package (SOT762-1), 2.5 × 3.0 × 0.85 mm body, no leads, side-wettable flanks for AOI-compatible solder joint inspection. Exposed thermal pad (pin 1 index area) may be left floating or connected to GND per layout requirements.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad NAND gate applications.

Compared with 74AHC00BQ-Q100, the 74AHCT00BQ-Q100 offers TTL input compatibility at the cost of reduced noise margin in CMOS systems, while SN74LVC00AQDRQ1 delivers faster speed at 3.3 V but sacrifices overvoltage resilience - making the AHC variant optimal for mixed-voltage automotive subsystems requiring robustness without external protection.

Availability

74AHC00BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, ADAS sensor interfaces, infotainment power sequencing, and electric power steering diagnostic logic requiring stable component supply with AEC-Q100 compliance and long-term lifecycle support.

Supply support for 74AHC00BQ-Q100 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 delivering high-performance logic, discrete, and MOSFET solutions optimized for automotive, industrial, and consumer applications - with emphasis on reliability, efficiency, and AEC-Q100 compliance.

This device belongs to Nexperia's automotive-qualified 74AHC logic family, designed specifically for robust, low-power, mixed-voltage digital interfacing in harsh automotive environments.

FAQ

Is 74AHC00BQ-Q100 pin-compatible with 74AHCT00BQ-Q100?

Yes - both share identical DHVQFN14 (SOT762-1) pinout, terminal count, and mechanical footprint. The only functional difference is input threshold: AHC uses CMOS-level inputs (VIH ≥ 0.7×VCC), while AHCT uses TTL-level inputs (VIH ≥ 2.0 V). No PCB redesign is needed when swapping between them, but logic-level compatibility must be verified in the target system.

Can 74AHC00BQ-Q100 operate reliably at 2.0 V supply?

Yes - it is fully specified down to 2.0 V supply across the full -40 °C to +125 °C range. At 2.0 V, VOH is guaranteed ≥1.5 V and VOL ≤0.5 V with 4 mA load, and propagation delay increases to ≤10.0 ns (CL = 50 pF). This enables interoperability with ultra-low-power 2.0 V microcontrollers and sensors in battery-constrained automotive modules.

What is the purpose of the exposed thermal pad in the DHVQFN14 package?

The exposed pad (terminal 1 index area) serves as a thermal conduction path to the PCB, improving heat dissipation during sustained switching. Per Nexperia's recommendation, it may be left electrically floating or connected to GND - if connected, the solder land must remain isolated from other copper or tied solely to GND plane to avoid shorting. It is not a functional pin and has no electrical requirement for soldering.

Does 74AHC00BQ-Q100 require external pull-up or pull-down resistors on unused inputs?

No - all inputs feature integrated Schmitt-trigger action and high-impedance CMOS structure, but unused inputs must still be terminated to a defined logic level (VCC or GND) to prevent floating nodes that cause increased ICC, oscillation, or EMI. Internal clamping diodes and overvoltage tolerance do not eliminate the need for proper input biasing in production designs.