Diodes Incorporated 74AHCT1G00W5-7

Overview

74AHCT1G00W5-7 from Diodes Incorporated is a single 2-input positive NAND gate in SOT25 package, operating at 4.5V–5.5V supply, delivering ±8 mA output drive at 5.0V, with Schmitt-trigger inputs for noise immunity, and designed for general-purpose logic interfacing in space-constrained digital systems.

For engineers reviewing the 74AHCT1G00W5-7 datasheet, 74AHCT1G00W5-7 pinout, 74AHCT1G00W5-7 application, or 74AHCT1G00W5-7 equivalent, key selection criteria include TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), propagation delay of 3.6 ns (typ.) at CL = 15 pF, CMOS power efficiency (<10 µA ICC), and ESD robustness (2 kV HBM).

Technical Context

This device implements standard positive-logic NAND functionality (Y = A·B) using CMOS technology with TTL-level input compatibility. Its Schmitt-trigger inputs provide hysteresis (≈0.3 V typical), enabling reliable operation with slow-rising or noisy signals.

The 74AHCT1G00W5-7 features totem-pole output stage, supports fan-out of ≥10 LS-TTL loads, and maintains rail-to-rail output swing (VOH ≥ 3.7 V, VOL ≤ 0.55 V at IOL = 8 mA) across –40°C to +125°C ambient temperature range.

Key Specifications

Pinout & Package

SOT25 (5-pin SC-74A) surface-mount package with exposed pad not present; moisture sensitivity level (MSL) 1 per J-STD-020; RoHS-compliant, lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AHCT1G00DBVR, the 74AHCT1G00W5-7 offers faster propagation (3.6 ns vs. 4.5 ns) and tighter thermal resistance (θJA = 204°C/W vs. ~240°C/W); versus 74LVC1G00GW, it delivers stronger 5 V drive consistency and superior noise immunity via Schmitt inputs, at the cost of narrower VCC range.

Availability

74AHCT1G00W5-7 is available at Aetrix Electronics and suitable for industrial control logic, consumer audio interface, automotive body electronics, and embedded IoT sensor hub applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for 74AHCT1G00W5-7 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The 74AHCT1G00W5-7 belongs to Diodes' AHCT logic family-engineered for TTL-compatible 5 V systems requiring low power, high noise immunity, and robust industrial temperature performance.

FAQ

What is the maximum operating temperature for the 74AHCT1G00W5-7?

The 74AHCT1G00W5-7 is rated for operation from –40°C to +125°C ambient temperature. Its junction temperature can reach +150°C under specified conditions, and thermal resistance θJA is 204°C/W for the SOT25 package, enabling reliable use in thermally demanding environments like automotive engine compartments or industrial motor drives.

Can unused inputs be left floating?

No. Per the datasheet (Note 3), unused inputs must be tied to either VCC or GND to prevent undefined logic states, increased power consumption, and potential oscillation. Floating inputs may cause excessive ICC due to partial conduction in the input stage, especially under temperature variation or noise coupling.

Does the 74AHCT1G00W5-7 support mixed-voltage interfacing?

It accepts TTL-level inputs (VIH = 2.0 V, VIL = 0.8 V) and operates only from 4.5 V to 5.5 V. While it can receive signals from 3.3 V logic (if VOH > 2.0 V), it cannot drive 3.3 V–tolerant inputs without series resistance or level translation, as its outputs swing rail-to-rail (0 V to 5.5 V) and exceed absolute maximum VI ratings of many 3.3 V devices.

Is the SOT25 package lead-free and RoHS compliant?

Yes. The 74AHCT1G00W5-7 uses lead-free finish and complies with EU Directive 2002/95/EC (RoHS). Its molding compound is halogen-free ("Green" compound with no Br or Sb), and full compliance documentation-including exemption details-is available on Diodes Incorporated's website under lead-free product resources.