NXP Semiconductors 74HC2G02DC,125

Overview

74HC2G02DC,125 from Nexperia is a dual 2-input NOR gate in VSSOP8 package, operating from 2.0 V to 6.0 V supply, delivering CMOS-level input compatibility, propagation delay as low as 8 ns at 6.0 V, and guaranteed operation from –40 °C to +125 °C. It serves as a compact logic building block for level-shifting, signal inversion, and combinational control in space-constrained digital subsystems.

For engineers reviewing the 74HC2G02DC,125 datasheet, 74HC2G02DC,125 pinout, 74HC2G02DC,125 application, or 74HC2G02DC,125 equivalent, this device is selected for low-voltage logic interfacing, battery-powered control sequencing, and high-noise-immunity signal conditioning where dual independent NOR functions are required in minimal PCB area.

Technical Context

This device implements two independent 2-input NOR gates with clamp diodes on all inputs, enabling safe interface to voltages exceeding VCC when used with current-limiting resistors. Its CMOS input structure ensures high noise immunity and low static power consumption across the full 2.0–6.0 V operating range.

The logic function conforms strictly to IEEE/IEC standard NOR truth table (L/L → H, all other input combinations → L), with output drive capability of ±4.0 mA at 4.5 V and ±5.2 mA at 6.0 V. Input thresholds are referenced to VCC (VIH = 0.7×VCC min, VIL = 0.3×VCC max), ensuring robust switching margins under varying supply conditions.

Key Specifications

Pinout & Package

VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8 leads; body width 2.3 mm; pin 1 indicator located below marking code in lower-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 2-input NOR gate applications.

Compared with 74HCT2G02DC,125 and SN74LVC2G02DBVR, the 74HC2G02DC,125 uniquely balances wide supply adaptability (2.0–6.0 V), integrated input clamping, and industrial temperature support - making it optimal for mixed-voltage, space-constrained, and ruggedized digital control.

Availability

74HC2G02DC,125 is available at Aetrix Electronics and suitable for industrial automation controllers, portable medical devices, and IoT edge node designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74HC2G02DC,125 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 specializing in high-performance logic, analog, and discrete components, with leadership in automotive-grade and industrial reliability standards.

This device belongs to the 74HC family of high-speed CMOS logic ICs, designed specifically for low-power, high-noise-immunity digital interfacing in industrial, consumer, and computing applications.

FAQ

What is the maximum clock frequency supported by the 74HC2G02DC,125?

The 74HC2G02DC,125 is a combinational logic gate-not a clocked device-so it has no defined clock frequency. Its usable signal frequency depends on propagation delay and load capacitance. With 15 pF load and 6.0 V supply, tpd is 8 ns, supporting clean signal edges up to approximately 60 MHz in simple gating applications.

Can the 74HC2G02DC,125 safely interface a 5 V microcontroller output to a 3.3 V FPGA input?

Yes, when powered at 3.3 V, its inputs tolerate up to VCC + 0.5 V (3.8 V) due to integrated clamp diodes. A 5 V MCU output must be current-limited (e.g., 10 kΩ series resistor) to keep IIK within ±20 mA, enabling safe level translation without external components.

Does the 74HC2G02DC,125 support partial power-down operation?

No. The device lacks Ioff (power-off isolation) specification. If VCC = 0 V while inputs are driven, current may flow through input clamps into GND, violating Absolute Maximum Ratings. Always power VCC before applying input signals.

How does the VSSOP8 package affect thermal performance compared to TSSOP8?

The VSSOP8 (SOT765-1) has lower thermal resistance than TSSOP8: total power dissipation derates at 4.9 mW/K above 99 °C, versus 4.6 mW/K above 96 °C for TSSOP8. Its smaller body (2.3 mm width) requires tighter layout but achieves comparable junction temperature rise under identical power and PCB copper conditions.