Nexperia USA Inc. 74HC4002DB,118

Overview

74HC4002DB,118 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, delivering propagation delay as low as 9 ns at VCC = 5.0 V/CL = 15 pF, with ±25 mA output drive capability and specified operation from −40 °C to +125 °C. It serves as a logic-level combinatorial building block in digital control, address decoding, and enable-gating circuits.

For engineers reviewing the 74HC4002DB,118 datasheet, 74HC4002DB,118 pinout, 74HC4002DB,118 application, or 74HC4002DB,118 equivalent, key selection criteria include input voltage thresholds (VIH = 3.15 V min at VCC = 4.5 V), output drive strength under load, thermal derating behavior above 100 °C, and compatibility with 3.3 V and 5 V mixed-signal systems.

Technical Context

This device implements two independent 4-input NOR functions using high-noise-immunity CMOS technology. Each gate features clamp diodes on all inputs, enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors.

It complies with JEDEC JESD7A (2.0–6.0 V) and JESD8C (2.7–3.6 V) standards, supports HBM ESD >2000 V and CDM >1000 V, and meets latch-up immunity per JESD78 Class II Level B (>100 mA).

Key Specifications

Pinout & Package

74HC4002DB,118 uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC4002DB,118, the 74HC4002D,118 offers identical performance in the same SO14 package, while SN74HC4002N trades surface-mount efficiency for through-hole compatibility-making the DB variant optimal for modern industrial SMT production.

Availability

74HC4002DB,118 is available at Aetrix Electronics and suitable for industrial automation controllers, embedded microcontroller peripherals, and legacy bus interface modules requiring stable component supply across extended temperature ranges.

Supply support for 74HC4002DB,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, and consumer applications.

The 74HC4002 belongs to Nexperia's 74HC logic family-designed for low-power, high-noise-immunity digital control in industrial and extended-temperature environments.

FAQ

Is 74HC4002DB,118 pin-compatible with 74HCT4002 variants?

No. While both are dual 4-input NOR gates, 74HCT4002 uses TTL-compatible input thresholds (VIH ≈ 2.0 V), whereas 74HC4002DB,118 has CMOS thresholds (VIH = 0.7×VCC). Direct substitution may cause logic misreads in 5 V systems with marginal noise margins or slow-rising edges.

Can unused inputs be left floating?

No. All inputs-including unused ones-must be tied to VCC or GND. Floating CMOS inputs cause increased supply current, unpredictable output states, and potential oscillation due to noise coupling, violating JEDEC JESD7A requirements.

What is the maximum capacitive load this device can drive reliably?

At VCC = 5.0 V and Tamb = 25 °C, the device maintains guaranteed timing up to 50 pF (per Table 7). Driving >50 pF increases propagation delay nonlinearly and may exceed output transition time limits; add a buffer stage for loads >75 pF.

Does 74HC4002DB,118 support mixed-voltage interfacing (e.g., 3.3 V inputs with 5 V VCC)?

Yes-its CMOS input structure accepts VI = 0 to VCC, so 3.3 V signals are valid HIGH inputs at 5 V VCC. However, output VOH will be ~5 V, requiring level translation if driving 3.3 V-only inputs downstream.