Nexperia USA Inc. 74HCT00DB,118

Overview

74HCT00DB,118 from Nexperia is a quad 2-input NAND gate logic IC with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5.0 V), 4.5 V to 5.5 V supply range, and SO14 (SOT337-1) package. It delivers 12 ns typical propagation delay at 5 V/50 pF, operates from –40 °C to +125 °C, and integrates input clamp diodes for overvoltage-tolerant interfacing in mixed-voltage digital control systems.

For engineers reviewing the 74HCT00DB,118 datasheet, 74HCT00DB,118 pinout, 74HCT00DB,118 application, or 74HCT00DB,118 equivalent, this device is selected for robust level translation between legacy TTL and modern CMOS subsystems, high-noise industrial control panels, and space-constrained board-level logic consolidation where guaranteed 4 mA output drive and ±20 mA clamping current are required.

Technical Context

The 74HCT00DB,118 implements four independent NAND gates using silicon-gate CMOS technology with TTL-level input circuitry-ensuring compatibility with standard 5 V TTL outputs while maintaining CMOS power efficiency. Each gate features symmetric input structure with integrated clamp diodes to GND and VCC, enabling safe interface to signals exceeding VCC when used with external current-limiting resistors.

Its logic behavior follows the standard NAND truth table (L/X→H, X/L→H, H/H→L), with propagation delays specified under defined test conditions (CL = 50 pF, VI swing from 1.3 V to 1.3 V, VO measured at 0.1VCC/0.9VCC). Output drive strength is characterized at IO = ±4.0 mA for VOL/VOH, supporting direct fan-out to multiple 74-series loads without buffering.

Key Specifications

Pinout & Package

74HCT00DB,118 is housed in a plastic shrink small outline package (SSOP14) with 14 leads, body width 5.3 mm, and pitch 0.65 mm (SOT337-1). This package offers improved thermal performance and higher density than standard SO14, suitable for compact PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT00DB,118, the 74HCT00D,118 offers easier hand-soldering and legacy board compatibility, while SN74HCT00DR adds automotive qualification at the cost of longer lead times and higher unit price-making the DB variant optimal for cost-sensitive industrial designs requiring SSOP density.

Availability

74HCT00DB,118 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, legacy system interface adapters, and test equipment signal routing requiring stable component supply across extended temperature ranges.

Supply support for 74HCT00DB,118 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 semiconductors, delivering high-performance, reliable components for automotive, industrial, mobile, and computing applications.

The 74HCT00DB,118 belongs to Nexperia's 74HCT logic family, engineered specifically for robust TTL-to-CMOS interfacing in harsh environments where wide temperature operation and high noise immunity are critical.

FAQ

What is the maximum clock frequency supported by 74HCT00DB,118?

The 74HCT00DB,118 is a combinational logic device-not a clocked element-so it has no inherent clock frequency limit. Its usable toggle rate depends on propagation delay and system-level timing margins. With 12 ns typical tpd, it reliably supports asynchronous logic paths operating below ~25 MHz in well-designed PCB layouts with proper decoupling and termination.

Can 74HCT00DB,118 operate at 3.3 V supply?

No. The 74HCT00DB,118 is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds (VIH = 2.0 V min) become non-compliant with standard 3.3 V logic families, and output drive degrades significantly. For 3.3 V systems, use the 74LVC00 or 74AHC00 series instead.

Is the SSOP14 (SOT337-1) package RoHS compliant and lead-free?

Yes. The 74HCT00DB,118 in SOT337-1 package meets RoHS Directive 2011/65/EU and is manufactured with lead-free terminations and halogen-free molding compound, verified per Nexperia's material declarations and JEDEC J-STD-609 standards.

Does 74HCT00DB,118 require external pull-up resistors on inputs?

No. Inputs are TTL-compatible with built-in threshold detection and clamp diodes. Pull-ups are unnecessary unless implementing wired-OR configurations or open-collector emulation. Unused inputs must be tied to VCC or GND to prevent floating states and excessive ICC.