Diodes Incorporated 74HCT04S14-13

Overview

74HCT04S14-13 from Diodes Incorporated is a hex inverter IC with six independent CMOS/TTL-compatible push-pull gates, operating at 4.5V–5.5V supply, delivering 4mA output drive at V_CC = 4.5V, featuring Schmitt-trigger inputs and ±20μA max input leakage. It is used in digital logic level translation and signal inversion within PC motherboard I/O buffers.

For engineers reviewing the 74HCT04S14-13 datasheet, 74HCT04S14-13 pinout, 74HCT04S14-13 application, or 74HCT04S14-13 equivalent, key selection criteria include TTL-level input compatibility, 12ns typical propagation delay (CL = 50pF), SO-14 package thermal performance, and ESD robustness (2kV HBM).

Technical Context

This device implements six identical inverting logic gates with rail-to-rail CMOS outputs and TTL-compatible input thresholds (V_IL ≤ 0.8V, V_VIH ≥ 2.0V). Each gate operates with no internal feedback and requires no external biasing.

It uses standard HCT logic process technology to achieve low static current (≤40μA at 6.0V) while maintaining fast switching (t_PD ≤ 29ns over –40°C to +125°C) and high noise immunity via Schmitt-trigger input hysteresis on all six channels.

Key Specifications

Pinout & Package

74HCT04S14-13 is housed in a 14-pin Small Outline (SO-14) package with 1.27mm pitch, 8.6mm body width, and 1.6mm max height - optimized for automated SMT assembly and thermal dissipation in dense logic layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HCT04DR and 74HCT04PW,118, the 74HCT04S14-13 offers the tightest propagation delay specification (29ns max) and lowest input leakage (±1μA), making it optimal for timing-critical 5V logic interfaces where SO-14 mechanical compatibility is mandatory.

Availability

74HCT04S14-13 is available at Aetrix Electronics and suitable for PC motherboard design, industrial PLC I/O modules, and automotive body control units requiring stable component supply and long-term manufacturability.

Supply support for 74HCT04S14-13 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, serving industrial, computing, consumer, and automotive markets with high-reliability components.

The 74HCT logic family targets cost-sensitive, high-volume 5V digital systems requiring TTL compatibility, low power, and robust ESD performance - especially in legacy infrastructure and mixed-voltage interface applications.

FAQ

Is 74HCT04S14-13 compatible with 3.3V input signals?

No - its input thresholds (V_IL ≤ 0.8V, V_IH ≥ 2.0V) require minimum 2.0V for HIGH recognition, making it unsuitable for direct 3.3V logic interfacing without level translation. It is designed exclusively for 5V systems with TTL-compatible sources.

What is the maximum operating temperature range for continuous use?

The device is rated for continuous operation from –40°C to +125°C ambient, with junction temperature limited to +150°C. Derating is required above +85°C ambient when dissipating >200mW total power across all six gates.

Does this part support hot-swap or live-insertion?

No - 74HCT04S14-13 lacks bus-hold or power-up 3-state features. Applying input signals before V_CC stabilization may cause excessive ICC or latch-up. Power sequencing must ensure V_CC is established prior to any input transition.

Can unused inputs be left floating?

No - floating inputs risk oscillation and increased ICC due to undefined logic states. Per datasheet Note 6, all unused inputs must be tied to V_CC or GND via ≤1kΩ resistor to maintain stability and minimize power consumption.