Diodes Incorporated 74AHCT1G00QW5-7

Overview

74AHCT1G00QW5-7 from Diodes Incorporated is an automotive-grade single 2-input positive NAND gate in SOT25 package, operating from 4.5V to 5.5V with ±8mA output drive at 5.0V, Schmitt-trigger inputs for noise immunity, and AEC-Q100 Grade 1 qualification (−40°C to +125°C). It performs standard Boolean NAND logic (Y = A·B) in push-pull configuration for digital control signal conditioning in engine management and body electronics.

For engineers reviewing the 74AHCT1G00QW5-7 datasheet, 74AHCT1G00QW5-7 pinout, 74AHCT1G00QW5-7 application, or 74AHCT1G00QW5-7 equivalent, this part supports high-reliability automotive logic interfacing where input rise/fall time tolerance, ESD robustness (2kV HBM), and thermal stability across extended temperature range are critical selection criteria.

Technical Context

This device implements a single-stage CMOS NAND gate with Schmitt-trigger inputs-enabling reliable operation with slow or noisy input edges without external hysteresis circuitry. Its balanced propagation delays (t_PD = 3.6 ns typ @ 15 pF) and matched high/low drive strength (I_OH/I_OL = ±8 mA) ensure predictable timing in combinatorial logic paths.

Designed for 5V automotive systems, it features rail-to-rail input voltage tolerance (−0.5V to V_CC + 0.5V), latch-up immunity (>100 mA), and low static current (I_CC ≤ 40 μA max over temp), making it suitable for always-on modules requiring low quiescent power and AEC-Q100 compliance.

Key Specifications

Pinout & Package

SOT25 (3.0 mm × 2.8 mm × 1.2 mm, 0.95 mm lead pitch) surface-mount package with moisture sensitivity level 1 and matte tin-plated leads compliant with MIL-STD-202 Method 208.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AHCT1G00DBVR and 74LVC1G00GW,125, the 74AHCT1G00QW5-7 uniquely combines AEC-Q100 Grade 1 qualification, Schmitt-trigger inputs, and production in IATF 16949 facilities-making it the only option for safety-critical automotive logic where traceable PPAP data and guaranteed −40°C to +125°C operation are mandatory.

Availability

74AHCT1G00QW5-7 is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control units requiring stable component supply with full automotive qualification and long-term lifecycle support.

Supply support for 74AHCT1G00QW5-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets with ISO/TS 16949 and IATF 16949 certified operations.

The 74AHCT logic family targets automotive and industrial applications requiring robust 5V logic interfacing with AEC-Q100 qualification, low power, and noise-immune input structures-designed specifically for signal conditioning in harsh electrical environments.

FAQ

Is the 74AHCT1G00QW5-7 pin-compatible with other SOT25-packaged single-gate logic devices?

Yes-the SOT25 pinout (A-B-GND-Y-V_CC) is standardized across Diodes' 74AHCT1Gxx series and matches industry-standard pin mapping for single-gate logic. This allows direct substitution with 74AHCT1G02, 74AHCT1G04, and similar parts without PCB redesign, provided logic function and timing requirements align.

Can unused inputs be left floating in the 74AHCT1G00QW5-7?

No-unused inputs must be tied to V_CC or GND per the datasheet's recommended operating conditions. Floating inputs may cause excessive ICC current, unpredictable output states, or increased EMI susceptibility due to internal node oscillation, especially under temperature extremes.

What is the maximum capacitive load the 74AHCT1G00QW5-7 can drive reliably?

The device is characterized up to 50 pF (t_PD = 10.0 ns max at −40°C to +125°C), and its ±8 mA drive capability supports loads up to ~300 pF with acceptable rise/fall times (<15 ns) when combined with proper PCB layout and decoupling. For >50 pF, verify timing margins in the target application.

Does the 74AHCT1G00QW5-7 support mixed-voltage interfacing with 3.3V systems?

It accepts 3.3V logic inputs safely (V_IL ≤ 0.8V, V_VIH ≥ 2.0V at V_CC = 5V), but outputs swing rail-to-rail at 5V. To interface with 3.3V receivers, use a resistive divider or level-shifter-direct connection risks overvoltage damage to downstream 3.3V CMOS inputs.