Nexperia USA Inc. 74HC05BQ-Q100,115

Overview

74HC05BQ-Q100 from Nexperia is an automotive-grade hex inverter IC with six independent open-drain outputs, operating from 2.0 V to 6.0 V over -40 °C to +125 °C, qualified to AEC-Q100 Grade 1, and housed in a DHVQFN14 (SOT762-1) package with side-wettable flanks for AOI-compatible solder joint inspection.

For engineers reviewing the 74HC05BQ-Q100 datasheet, 74HC05BQ-Q100 pinout, 74HC05BQ-Q100 application, or 74HC05BQ-Q100 equivalent, this device supports wired-OR/AND logic implementation in automotive body control modules, LED driver interfaces, and I²C bus level-shifting circuits where open-drain drive and high-temperature reliability are required.

Technical Context

This device implements six independent CMOS inverters whose outputs lack internal pull-ups and must be externally pulled to VCC or another rail to define HIGH states. Each gate follows a standard inverting truth table: LOW input yields high-impedance (Z) output; HIGH input forces output LOW.

Its open-drain architecture enables direct connection of multiple outputs to a shared bus line, supporting active-LOW wired-OR logic (e.g., interrupt aggregation) and active-HIGH wired-AND functions when used with appropriate external pull-up resistors and voltage levels.

Key Specifications

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 × 3.0 × 0.85 mm body, no leads, 14 terminals, side-wettable flanks for automated optical inspection of solder joints.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter with open-drain applications.

Compared with 74HC05BQ-Q100, the 74LVC05PW-Q100 offers superior speed and drive in 3.3 V systems but sacrifices 6 V compatibility, while the SN74LV05AQPWRQ1 provides functional equivalence in SOIC packaging but lacks the manufacturability advantages of DHVQFN with side-wettable flanks.

Availability

74HC05BQ-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control, I²C interface bridging, and wake-up signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for 74HC05BQ-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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and discrete components, with global R&D and manufacturing infrastructure focused on automotive and industrial markets.

The 74HC05-Q100 product line delivers AEC-Q100-qualified logic functions optimized for automotive subsystems requiring robustness, wide voltage operation, and long-term supply stability - particularly in body electronics and powertrain interface applications.

FAQ

What is the maximum sink current per output of the 74HC05BQ-Q100?

The 74HC05BQ-Q100 guarantees a minimum sink current of 4.0 mA at VOL ≤ 0.26 V (VCC = 4.5 V) and 5.2 mA at VOL ≤ 0.26 V (VCC = 6.0 V). Absolute maximum rated output current is ±25 mA, but continuous operation above 5.2 mA may exceed recommended operating conditions and affect VOL or thermal performance.

Can the 74HC05BQ-Q100 outputs be tied together without external protection?

Yes - the open-drain outputs are explicitly designed for wired-OR/AND configurations. When multiple outputs share a common pull-up resistor, they operate safely without contention because only LOW or high-impedance states are possible; no shoot-through current occurs between outputs.

Is a pull-up resistor required for normal operation?

Yes - open-drain outputs cannot source current, so a pull-up resistor (or active pull-up circuit) is mandatory to establish a defined HIGH logic level. Typical values range from 1 kΩ to 10 kΩ depending on bus capacitance, speed requirements, and VCC level.

Does the 74HC05BQ-Q100 support 3.3 V logic interfacing?

Yes - with VCC = 3.3 V, VIH = 2.1 V and VIL = 1.35 V (per static characteristics), ensuring full compatibility with standard 3.3 V CMOS outputs. Input thresholds remain valid across the full -40 °C to +125 °C range, enabling reliable operation in automotive environments.