Diodes Incorporated 74LVC2G32HK3-7

Overview

74LVC2G32HK3-7 from Diodes Incorporated is a dual 2-input OR gate in X2-DFN1410-8 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 VCC = 3.0V) for noise-immune signal conditioning in compact portable logic interfaces.

For engineers reviewing the 74LVC2G32HK3-7 datasheet, 74LVC2G32HK3-7 pinout, 74LVC2G32HK3-7 application, or 74LVC2G32HK3-7 equivalent, key selection criteria include its 1.35mm × 1.0mm DFN footprint, dual-gate Boolean OR functionality, IOFF current isolation during power sequencing, and voltage-level translation capability across 1.65–5.5V domains.

Technical Context

This device implements two independent positive-logic OR gates (Y = A + B) with push-pull CMOS outputs and fully specified IOFF circuitry that disables outputs and blocks backflow current when VCC = 0V. Each input features Schmitt-trigger action with 100mV typical hysteresis at 3.0V, enabling robust operation with slow-rising or noisy signals.

It supports mixed-voltage system interfacing via 5.5V-tolerant inputs while powered from as low as 1.65V, and meets JESD22 ESD ratings of 2kV HBM and >1kV CDM. Latch-up immunity exceeds 100mA per JESD78 Class I, ensuring reliability in dynamic power-state transitions.

Key Specifications

Pinout & Package

X2-DFN1410-8 package: 1.35 mm × 1.0 mm × 0.35 mm body, 0.4 mm lead pitch, exposed thermal pad (no electrical connection), 8-terminal bottom-terminated layout.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G32DPWR and 74AUP2G32GW,125, the 74LVC2G32HK3-7 uniquely balances ultra-compact size (1.35×1.0mm), full 24mA drive, and IOFF protection-making it optimal for space-constrained, mixed-voltage, and hot-plug-capable designs where both density and robustness are critical.

Availability

74LVC2G32HK3-7 is available at Aetrix Electronics and suitable for USB peripheral interface, industrial sensor hub, portable display backlight control, and automotive infotainment power sequencing requiring stable component supply and long-term lifecycle support.

Supply support for 74LVC2G32HK3-7 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, high-reliability components for power management, signal integrity, and logic applications.

The 74LVC logic family delivers advanced low-voltage CMOS performance with wide supply range and robust IOFF capability, designed specifically for portable, industrial, and automotive systems demanding compact size, mixed-voltage interoperability, and power-aware logic interfacing.

FAQ

Can 74LVC2G32HK3-7 operate with VCC = 1.65V while accepting 3.3V inputs?

Yes. Its inputs are 5.5V-tolerant and fully functional across the entire 1.65–5.5V VCC range. At VCC = 1.65V, VIH is guaranteed ≥1.07V and VIL ≤0.58V, allowing reliable recognition of 3.3V logic-high signals without level shifting.

What is the purpose of the exposed thermal pad on the X2-DFN1410-8 package?

The exposed pad is a mechanical thermal relief feature-not electrically connected-and improves heat dissipation during sustained output switching. It must be soldered to a PCB thermal pad using standard reflow profiles; no electrical tie to GND or VCC is required or recommended.

Does IOFF activate automatically when VCC drops below a threshold?

Yes. The IOFF circuit engages when VCC falls below approximately 0.8V, placing both outputs in high-impedance state. Output leakage remains ≤±10 μA at 5.5V applied to any input or output, preventing back-current into unpowered domains during brown-out or hot-swap events.

How does Schmitt-trigger input behavior affect timing analysis?

Schmitt-trigger inputs introduce deterministic hysteresis but do not alter propagation delay specifications. The tpd values in the datasheet (e.g., 2.2 ns typ at 3.3V) are measured using standard VIH/VIL thresholds-not switching points-and remain valid for timing budgeting; hysteresis only improves noise margin, not speed.