NXP Semiconductors 74AHC00D,112

Overview

74AHC00D,112 from Nexperia is a quad 2-input NAND gate IC in SO14 package, operating from 2.0 V to 5.5 V supply, featuring overvoltage-tolerant inputs (up to 5.5 V), Schmitt-trigger inputs for noise immunity, and propagation delays as low as 3.2 ns at 5 V with 15 pF load. It serves as a level-translating logic gate in mixed-voltage digital systems such as industrial control I/O interfaces and microcontroller peripheral buffering.

For engineers reviewing the 74AHC00D,112 datasheet, 74AHC00D,112 pinout, 74AHC00D,112 application, or 74AHC00D,112 equivalent, this page delivers verified functional role, exact SO14 pin mapping, temperature-rated static/dynamic specs (-40 °C to +125 °C), and real-world NAND gate substitution guidance - all confirmed against Nexperia's Rev. 8 (23 April 2025) product data sheet.

Technical Context

This device implements four independent 2-input NAND gates using advanced AHC CMOS technology, enabling rail-to-rail output swing and input tolerance beyond VCC. Its Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at 3.3 V), improving noise rejection in noisy environments like motor drive control logic.

The logic function follows standard NAND truth table: output is LOW only when both inputs are HIGH; all other combinations yield HIGH. Input clamping diodes and ESD protection (HBM >2000 V, CDM >1000 V) support robust operation in board-level signal conditioning and interface translation between 3.3 V and 5 V domains.

Key Specifications

Pinout & Package

74AHC00D,112 is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads and 3.9 mm body width. Pin 1 is marked by a beveled corner or index notch; the package is RoHS-compliant and rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74AHCT00D,112, the 74AHC00D,112 offers broader input voltage compatibility for modern low-voltage systems, while SN74LVC00APWR reduces dynamic power by 40% at 3.3 V but sacrifices 5 V supply capability - making each optimal for distinct voltage-domain architectures.

Availability

74AHC00D,112 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, microcontroller GPIO conditioning, and power sequencing control requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AHC00D,112 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 74AHC series targets high-speed, low-power CMOS logic applications demanding wide supply range, robust noise immunity, and mixed-voltage interoperability - especially in space-constrained industrial and communications equipment.

FAQ

Is 74AHC00D,112 pin-compatible with older 74HC00 variants?

Yes - it shares identical SO14 pinout and logic function with 74HC00, but adds overvoltage-tolerant inputs (5.5 V) and improved propagation delay (3.2 ns vs. typical 7 ns for HC). No layout change is needed for drop-in replacement in existing 74HC00 designs, though VCC range expands to 2.0–5.5 V.

Can 74AHC00D,112 safely interface a 5 V sensor output to a 3.3 V microcontroller?

Yes - its inputs tolerate up to 5.5 V regardless of VCC setting. With VCC = 3.3 V, it accepts 5 V logic HIGH without damage or level-shifting circuitry, and outputs swing 0–3.3 V compatible with standard 3.3 V GPIO inputs.

What is the maximum capacitive load 74AHC00D,112 can drive at 100 MHz?

At 100 MHz toggle rate, the recommended load is ≤15 pF to maintain tpd ≤7.0 ns and ensure VOL ≤0.55 V at 125 °C. Driving >30 pF risks excessive rise/fall times (>14.5 ns) and output voltage degradation due to CPD = 7.0 pF and limited IO drive strength.

Does 74AHC00D,112 require external pull-up or pull-down resistors on unused inputs?

No - all inputs have internal Schmitt-trigger circuitry with defined thresholds. However, floating inputs must still be avoided: tie unused A/B inputs to VCC or GND to prevent increased ICC and potential oscillation. Unused outputs may be left open.