Diodes Incorporated 74HCT00S14-13

Overview

74HCT00S14-13 from Diodes Incorporated is a quad 2-input NAND gate IC in SO-14 package, operating at 4.5V–5.5V supply, delivering TTL-compatible inputs, 4mA output drive, Schmitt-trigger inputs, and CMOS low-power consumption. It performs Boolean Y = A·B across four independent gates and is used in digital logic interfacing within PC peripherals and consumer electronics.

For engineers reviewing the 74HCT00S14-13 datasheet, 74HCT00S14-13 pinout, 74HCT00S14-13 application, or 74HCT00S14-13 equivalent, key selection criteria include input voltage compatibility (VIH ≥ 2.0V, VIL ≤ 0.8V), propagation delay (tPD ≤ 29ns @ -40°C to +125°C), output drive capability (±4mA), ESD robustness (2kV HBM), and SO-14 footprint compliance with LSTTL pinouts.

Technical Context

This device implements four independent NAND logic functions using high-speed CMOS technology with TTL-level input thresholds. Each gate features Schmitt-trigger action on both inputs for noise immunity and operates across industrial temperature range (-40°C to +125°C) under 4.5–5.5V supply.

It supports standard push-pull outputs with VOH ≥ 3.70V and VOL ≤ 0.4V at IOL = 4.0mA, and exhibits low static current (ICC ≤ 40μA) and dynamic power dissipation (Cpd = 12pF/gate). Input clamp protection and ESD ratings exceed JESD22-A114-A (2kV HBM), A115-A (200V MM), and C101C (1kV CDM).

Key Specifications

Pinout & Package

74HCT00S14-13 is housed in a 14-pin Small Outline (SO-14) package with 1.27mm pitch, 8.6mm body width, and 3.9mm body height per AP02002. Pin 1 is marked by indentation; pin 7 is GND, pin 14 is VCC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HCT00DR and MC74HCT00ADG, the 74HCT00S14-13 offers balanced performance across industrial temperature range, robust ESD margin (2kV HBM), and proven suitability for PC peripheral and consumer electronics logic interfacing without automotive or ultra-low-power constraints.

Availability

74HCT00S14-13 is available at Aetrix Electronics and suitable for PC peripheral interface, consumer audio control logic, DVD/Blu-ray drive control, and industrial panel controller applications requiring stable component supply and long-term industrial lifecycle support.

Supply support for 74HCT00S14-13 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, with design and manufacturing operations across Asia and the US.

The 74HCT logic family targets industrial and computing applications requiring TTL-compatible CMOS devices with enhanced noise immunity, wide temperature operation, and RoHS-compliant packaging.

FAQ

Can 74HCT00S14-13 operate reliably at 4.5V supply?

Yes. The device is fully specified from 4.5V to 5.5V, with all parameters-including VOH ≥ 3.70V at IOL = 4.0mA and VIH ≥ 2.0V-guaranteed across this range at temperatures from -40°C to +125°C. Its design ensures stable logic thresholds and output drive even at the lower supply limit.

Is the SO-14 package of 74HCT00S14-13 compatible with standard LSTTL footprints?

Yes. The SO-14 package has identical pinout and spacing (1.27mm pitch) as industry-standard 14-pin LSTTL devices. Pin 1 indentation and dual-row layout match JEDEC MS-012, enabling direct PCB footprint reuse without redesign.

Does 74HCT00S14-13 require external pull-up resistors on unused inputs?

No. Unused inputs must be tied to either VCC or GND per datasheet recommendation (Note 6), but external pull-ups are not required-the internal structure does not float. Leaving inputs unconnected risks metastability and increased ICC due to oscillation at Schmitt-trigger thresholds.

What is the maximum clock frequency supported by 74HCT00S14-13 in toggle mode?

While not a clocked device, its propagation delay (tPD ≤ 29ns) and transition time (tt ≤ 29ns) support reliable operation in combinatorial logic paths up to ~17MHz (1/(2 × tPD)). For sustained toggling, thermal limits and load capacitance (CL ≤ 50pF) govern practical frequency ceiling.