Diodes Incorporated 74LVC2G32HD4-7

Overview

74LVC2G32HD4-7 from Diodes Incorporated is a dual 2-input OR gate in X2-DFN2010-8 package, operating from 1.65V to 5.5V supply, delivering ±24mA output drive at 3.3V, with IOFF-enabled partial power-down protection and Schmitt-trigger inputs (100mV hysteresis at 3.0V). It enables voltage-level shifting and signal isolation in portable logic interfaces.

For engineers reviewing the 74LVC2G32HD4-7 datasheet, 74LVC2G32HD4-7 pinout, 74LVC2G32HD4-7 application, or 74LVC2G32HD4-7 equivalent, key selection criteria include dual-gate logic function, IOFF leakage <±10μA at 5.5V, 4.2ns typical propagation delay at 3.3V, and DFN-8 footprint compatibility with space-constrained PCB layouts.

Technical Context

This device implements two independent positive-logic OR functions (Y = A + B) using CMOS technology with push-pull outputs. Its IOFF circuitry actively disables outputs during power-down, blocking reverse current flow when VCC = 0V while inputs remain at up to 5.5V.

All inputs feature Schmitt-trigger action-providing 100mV typical hysteresis at VCC = 3.0V-which ensures noise immunity and reliable switching with slow-rising/falling signals. Input voltage tolerance extends to 5.5V regardless of VCC level, enabling robust level-shifting across mixed-supply domains.

Key Specifications

Pinout & Package

X2-DFN2010-8 package: 1.95mm × 1.0mm × 0.4mm body, 0.5mm lead pitch, exposed thermal pad (no internal connection), RoHS-compliant, halogen- and antimony-free "Green" construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual 2-input OR gate applications.

Compared with SN74LVC2G32DBVR and 74LVC2G32HK3-7, the 74LVC2G32HD4-7 offers optimal balance of miniaturization (1.95 × 1.0 mm), thermal resistance (313°C/W), and manufacturability - making it preferred for high-volume portable electronics where space and reliability coexist.

Availability

74LVC2G32HD4-7 is available at Aetrix Electronics and suitable for mobile device power sequencing, USB-C port logic interface, and industrial sensor hub signal aggregation requiring stable component supply and long-term lifecycle support.

Supply support for 74LVC2G32HD4-7 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 analog ICs, specializing in high-reliability, energy-efficient components for consumer, industrial, and computing markets.

The 74LVC logic family delivers low-voltage, high-speed CMOS logic with robust level-shifting and power-management features - designed specifically for battery-powered and mixed-supply embedded systems.

FAQ

Can 74LVC2G32HD4-7 operate with VCC = 1.65V while inputs are at 3.3V?

Yes. All inputs tolerate up to 5.5V regardless of VCC level, enabling reliable level-shifting from higher-voltage sources into 1.65V logic domains. At VCC = 1.65V, VIH is 0.65×VCC (≈1.07V), ensuring valid high-level recognition of 3.3V inputs without external resistors or translators.

What happens to outputs during power-down when VCC = 0V?

IOFF circuitry forces both outputs into high-impedance state with leakage ≤±10μA at 5.5V applied to inputs. This prevents damaging reverse current flow from live system buses into the unpowered IC - critical for hot-swap and partial-power-down architectures.

Is the X2-DFN2010-8 package thermally enhanced?

Yes. The package includes an exposed thermal pad (non-electrical) that must be soldered to a PCB copper pour. With recommended 2oz FR-4 layout, junction-to-ambient thermal resistance is 313°C/W - sufficient for continuous operation at 24mA output drive within -40°C to +125°C ambient.

Does this device require external pull-up or pull-down resistors on unused inputs?

Yes. Per datasheet Note 9, unused inputs must be tied to VCC or GND to prevent floating nodes, which could cause excessive ICC, oscillation, or unpredictable logic states. Schmitt-trigger inputs do not eliminate this requirement - they only improve noise margin on driven signals.