Nexperia USA Inc. 74AHC04BQ,115

Overview

74AHC04BQ,115 from Nexperia is a high-speed Si-gate CMOS hex inverter with six independent inverting buffers, pin-compatible with LSTTL, specified per JEDEC 7-A, operating from -40 °C to +125 °C, and featuring CMOS-level inputs (VIH = 3.85 V at VCC = 5.5 V), propagation delay of 3.0–5.5 ns (VCC = 4.5–5.5 V, CL = 15 pF), and DHVQFN14 package (2.5 × 3 × 0.85 mm).

For engineers reviewing the 74AHC04BQ,115 datasheet, 74AHC04BQ,115 pinout, 74AHC04BQ,115 application, or 74AHC04BQ,115 equivalent, this device serves as a logic-level signal inverter in digital interface buffering, clock signal conditioning, and bus driving where low-power, rail-to-rail output swing and TTL-compatible timing margins are required.

Technical Context

The 74AHC04BQ,115 implements six independent CMOS inverters with symmetrical input thresholds and balanced tPLH/tPHL propagation delays. It supports dual supply voltage ranges: 2.0–5.5 V for AHC logic (CMOS input compatibility) and 4.5–5.5 V for AHCT (TTL-level input compatibility), though this specific variant is the AHC version.

Its DHVQFN14 package features an exposed thermal pad (non-electrical, optional GND connection), 14 terminals in quad flat no-lead configuration, and thermal derating of 9.6 mW/K above 98 °C - enabling stable operation in thermally constrained embedded control and industrial I/O modules.

Key Specifications

Pinout & Package

DHVQFN14 (SOT762-1) package: 2.5 mm × 3.0 mm × 0.85 mm body, no leads, 14 copper terminals, exposed thermal pad (non-functional unless connected to GND for thermal relief).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverter applications.

Compared with 74AHCT04BQ,115, the AHC variant offers 1.85 V higher VIH at 5.5 V - improving noise immunity in electrically noisy industrial settings; versus SN74LVC04APWR, it trades higher drive strength for guaranteed 125 °C operation and 30% smaller footprint.

Availability

74AHC04BQ,115 is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller GPIO expansion, RS-485 transceiver control logic, and legacy bus level translation requiring stable component supply across extended temperature and long production lifecycles.

Supply support for 74AHC04BQ,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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74AHC series targets high-speed, low-power CMOS logic applications demanding precise timing, wide supply range, and robust ESD performance - especially in space- and thermal-constrained embedded control systems.

FAQ

Can 74AHC04BQ,115 operate at 2.0 V supply?

Yes - the 74AHC04BQ,115 is fully specified down to VCC = 2.0 V, with VIH = 1.5 V and VOL ≤ 0.5 V at 4 mA load. Propagation delay increases to 11.0 ns (CL = 15 pF), making it suitable for ultra-low-power wake-up logic or battery-backed monitoring circuits where speed is secondary to energy efficiency.

Is the exposed pad on the DHVQFN14 package electrically connected?

No - the exposed thermal pad (terminal 1 index area) has no electrical function. Per Nexperia's datasheet, it may remain floating or be soldered to GND solely for thermal conduction; no electrical connection is required or recommended for signal integrity.

What is the maximum capacitive load this device can drive reliably?

The 74AHC04BQ,115 is characterized up to CL = 50 pF, with tpd ≤ 9.5 ns at VCC = 5.5 V. Driving >50 pF risks exceeding output transition time limits and increasing dynamic power dissipation; for heavier loads, add series termination or use a dedicated buffer stage.

Does this part support mixed-voltage operation (e.g., 3.3 V inputs with 5 V supply)?

Yes - inputs accept voltages up to 7.0 V regardless of VCC, so 3.3 V signals are safely compatible with VCC = 5.0 V operation. Output swing remains rail-to-rail (0 V to 5.0 V), enabling clean interfacing between 3.3 V controllers and 5 V peripherals without level shifters.