Diodes Incorporated 74AUP2G02RA3-7

Overview

74AUP2G02RA3-7 from Diodes Incorporated is a dual 2-input NOR gate in the Advanced Ultra Low Power (AUP) CMOS logic family, designed for battery-powered portable systems. It operates from 0.8 V to 3.6 V, delivers ±4 mA output drive at 3.0 V, features IOFF partial power-down protection, and includes Schmitt-trigger inputs with ~250 mV hysteresis at 3.0 V - deployed in mobile device power management and signal conditioning circuits.

For engineers reviewing the 74AUP2G02RA3-7 datasheet, 74AUP2G02RA3-7 pinout, 74AUP2G02RA3-7 application, or 74AUP2G02RA3-7 equivalent, key selection criteria include ultra-low ICC (<0.9 µA), wide VCC range compatibility, IOFF-enabled system-level power sequencing, and DFN1210-8 footprint constraints for high-density PCB layouts.

Technical Context

This dual NOR gate implements positive-logic Boolean function Y = A + B (or Y = A • B) per channel, with fully buffered push-pull outputs and rail-to-rail input voltage tolerance (–0.5 V to VCC + 0.5 V). Each gate supports independent operation across the full 0.8–3.6 V supply range, enabling interoperability between 1.2 V, 1.8 V, and 3.3 V logic domains.

The IOFF circuit actively disables outputs during power-down, blocking reverse current flow when VCC = 0 V while inputs remain biased - critical for hot-swap and multi-rail systems. Schmitt-trigger inputs tolerate slow edge rates (up to 200 ns/V), eliminating external RC filtering in noisy or long-trace environments.

Key Specifications

Pinout & Package

X2-DFN1210-8 package: 1.2 mm × 1.0 mm × 0.35 mm body, 0.3 mm lead pitch, bottom thermal pad, no leads - optimized for space-constrained mobile PCBs and automated reflow assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AUP2G02DSFR and 74LVC2G02GM,132, the 74AUP2G02RA3-7 uniquely balances ultra-low ICC, guaranteed IOFF, and Schmitt inputs in a 1.2×1.0 mm footprint - making it optimal for space- and energy-constrained portable electronics requiring robust power sequencing.

Availability

74AUP2G02RA3-7 is available at Aetrix Electronics and suitable for smartphone power sequencing, tablet touch controller interfaces, USB-C port logic, and SSD NVMe power management requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for 74AUP2G02RA3-7 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 integrated circuits, specializing in high-performance, energy-efficient solutions for consumer, computing, industrial, and automotive markets.

The 74AUP logic family targets ultra-low-power portable electronics, delivering sub-1 µA static current and extended battery life without sacrificing speed or noise immunity - specifically engineered for mobile device signal integrity and power domain isolation.

FAQ

What is the minimum operating voltage for reliable logic switching?

The 74AUP2G02RA3-7 is fully specified down to 0.8 V, with guaranteed VIH/VIL thresholds, propagation delay, and output drive at that rail. At 0.8 V, tPD is 19.6 ns (CL = 5 pF), and IOH/IOL remain functional at ±20 µA - enabling integration with emerging sub-1V microcontroller cores and energy-harvesting systems.

Does the device support mixed-voltage interfacing between 1.2 V and 3.3 V domains?

Yes. With input voltage range of –0.5 V to VCC + 0.5 V and rail-tolerant Schmitt-trigger inputs, the 74AUP2G02RA3-7 accepts 1.2 V signals while powered at 3.3 V, and vice versa - provided VCC remains within 0.8–3.6 V. No external level shifters are needed for inter-domain enable or reset signal translation.

How does IOFF behave when VCC is disconnected during system operation?

When VCC drops below ~0.2 V, the IOFF circuit activates automatically, disabling both outputs and limiting leakage to ±0.6 µA max over temperature. This prevents current backflow from powered downstream logic (e.g., 3.3 V FPGA I/O) into the unpowered gate, eliminating risk of latch-up or unintended biasing.

Can unused inputs be left floating?

No. Per datasheet Note 8, all unused inputs must be tied to VCC or GND to prevent increased ICC, oscillation, or ESD susceptibility. Floating inputs cause undefined logic states and may elevate static current beyond 0.9 µA due to internal input stage instability.