Nexperia USA Inc. 74HC4002DB,112

Overview

74HC4002DB,112 from Nexperia is a dual 4-input CMOS NOR gate in SO14 (SOT108-1) package, operating from 2.0 V to 6.0 V supply, with propagation delay of 9 ns (typ.) at VCC = 5.0 V and CL = 15 pF, output drive capability of ±4.0 mA, and specified for -40 °C to +125 °C industrial temperature range. It serves as a logic-level combinatorial gate in digital control subsystems requiring noise-immune, low-power Boolean function implementation.

For engineers reviewing the 74HC4002DB,112 datasheet, 74HC4002DB,112 pinout, 74HC4002DB,112 application, or 74HC4002DB,112 equivalent, key selection criteria include guaranteed 4-input NOR functionality per gate, SO14-compatible footprint, input clamp diodes enabling overvoltage-tolerant interfacing, JEDEC-compliant CMOS input thresholds, and validated operation across extended temperature and voltage ranges.

Technical Context

The 74HC4002DB,112 implements two independent 4-input NOR gates using high-speed silicon-gate CMOS technology. Each gate performs strict Boolean NOR logic: output is HIGH only when all four inputs are LOW; otherwise, output is LOW. Input clamp diodes allow safe interface to signals exceeding VCC when used with current-limiting resistors.

It complies with JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards, supports static and dynamic operation up to 125 °C, and delivers defined VOH/VOL levels under load (e.g., VOH ≥ 3.98 V at IO = –4.0 mA, VCC = 4.5 V). Propagation delay varies predictably with supply voltage and load capacitance, enabling timing-critical combinational logic design.

Key Specifications

Pinout & Package

74HC4002DB,112 is supplied in SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 marked by notch or bevel; pin numbering counterclockwise from index mark.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 4-input NOR gate applications.

Compared with 74HC4002DB,112, the 74HC4002D,112 offers identical performance in the same SO14 package, while SN74HC4002N trades surface-mount efficiency for through-hole serviceability - making the DB variant optimal for automated SMT production of compact, thermally robust logic subsystems.

Availability

74HC4002DB,112 is available at Aetrix Electronics and suitable for industrial automation controllers, power supply monitoring modules, and test equipment signal conditioning circuits requiring stable component supply, long-term manufacturability, and extended temperature compliance.

Supply support for 74HC4002DB,112 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 leading Dutch semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74HC4002DB,112 belongs to Nexperia's 74HC high-speed CMOS logic family, engineered for reliable, low-power digital interfacing and combinatorial logic in harsh environments where voltage flexibility and thermal stability are critical.

FAQ

What is the maximum clock frequency supported by the 74HC4002DB,112?

The 74HC4002DB,112 is a combinational logic device-not a clocked sequential IC-so it has no inherent clock frequency rating. Its usable toggle rate depends on propagation delay and system-level loading: with 15 pF load and 5 V supply, tpd ≈ 9 ns (typ.), supporting logic transitions up to ~55 MHz in ideal conditions. Real-world limits are set by board parasitics and fan-out.

Can the 74HC4002DB,112 drive LEDs directly?

No-its absolute maximum output current is ±25 mA, but recommended sustained drive is ±4.0 mA (per output) at VCC = 4.5 V. Direct LED driving typically requires 5–20 mA continuously, risking VOH/VOL degradation or thermal stress. Use a discrete transistor or buffer stage for LED loads.

Are pins 6 and 8 truly unconnected internally?

Yes-pins 6 and 8 are confirmed no-connect (n.c.) terminals per Nexperia's official pin description table. They have no internal bond wire or silicon connection. PCB layout must leave them floating; no solder mask opening, via, or trace is permitted.

Does the 74HC4002DB,112 support 3.3 V-only operation?

Yes-its 2.0–6.0 V supply range fully covers 3.3 V nominal operation. At VCC = 3.3 V, VIH(min) = 2.1 V and VIL(max) = 1.35 V per datasheet Table 6, ensuring robust compatibility with standard 3.3 V CMOS outputs and inputs without level shifting.