Diodes Incorporated 74LVC1G04QW5-7

Overview

74LVC1G04QW5-7 from Diodes Incorporated is an automotive-grade single CMOS inverter gate with push-pull output, operating from 1.65V to 5.5V supply, delivering ±24mA drive at 3.3V, featuring 5.0pF input capacitance and 5.5ns typical propagation delay at 3.3V, used for voltage level shifting and signal inversion in AEC-Q100-compliant automotive control modules.

For engineers reviewing the 74LVC1G04QW5-7 datasheet, 74LVC1G04QW5-7 pinout, 74LVC1G04QW5-7 application, or 74LVC1G04QW5-7 equivalent, key selection criteria include IOFF-enabled partial power-down capability, 5.5V-tolerant inputs across all VCC levels, Grade 1 temperature range (–40°C to +125°C), and SOT25 package compatibility with high-density PCB layouts.

Technical Context

This device implements a single inverting logic function (Y = NOT A) using low-voltage CMOS technology, with rail-to-rail output swing and guaranteed switching performance across 1.65V–5.5V. Its IOFF circuit actively disables output leakage during power-down, preventing backflow current when VCC = 0V while inputs remain biased up to 5.5V.

The input structure supports mixed-voltage interfacing: inputs tolerate 5.5V regardless of VCC level, enabling direct connection to 5V logic while powered from 1.8V or 3.3V rails. Propagation delay remains stable across –40°C to +125°C, with tPD ≤ 9.5ns (min) at 1.8V and ≤ 5.0ns (max) at 5.0V.

Key Specifications

Pinout & Package

SOT25 (SC-74A) 5-pin surface-mount package: 3.0mm × 2.8mm × 1.2mm body, 0.95mm lead pitch, matte tin-plated leads, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single inverter applications.

Compared with SN74LVC1G04DBVR and 74AUP1G04GW,125, the 74LVC1G04QW5-7 uniquely combines AEC-Q100 Grade 1 qualification, 5.5V input tolerance, and ±24mA drive in a single SOT25 package-making it the only choice for automotive power-domain isolation and mixed-voltage signal conditioning where reliability and interoperability are non-negotiable.

Availability

74LVC1G04QW5-7 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input conditioning, and medical diagnostic equipment interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for 74LVC1G04QW5-7 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 components for automotive, industrial, and computing markets with IATF 16949-certified facilities.

The 74LVC logic family delivers low-voltage, high-speed CMOS performance with robust ESD and latch-up immunity, designed specifically for automotive signal integrity and mixed-voltage system integration.

FAQ

Is the NC pin on 74LVC1G04QW5-7 required to be left unconnected?

Yes. Pin 5 is internally unconnected and must remain floating-no external tie to VCC, GND, or any other node. Routing traces to this pin or applying solder paste may cause mechanical stress or unintended coupling, violating JEDEC SOT25 layout guidelines and potentially degrading ESD performance.

Can 74LVC1G04QW5-7 safely interface between a 5V microcontroller and a 1.8V FPGA?

Yes. Its 5.5V-tolerant inputs accept 5V logic levels regardless of VCC setting, and its output swings rail-to-rail (0V to VCC). When powered at 1.8V, it converts 5V inputs to 1.8V outputs-enabling bidirectional voltage translation without external components, provided the FPGA input thresholds are compatible with 1.8V logic levels.

What is the maximum capacitive load this inverter can drive while maintaining specified tPD?

The datasheet specifies switching characteristics with CL = 30pF (for 1.8V/2.5V) or 50pF (for 2.7V/3.3V/5.0V) and RL = 1kΩ or 500Ω. Driving >50pF increases tPD nonlinearly; for loads exceeding 50pF, derating is required-e.g., at 100pF and 3.3V, tPD increases to ~8.5ns (vs. 5.5ns typical at 50pF), verified in Diodes' application note AP02012.

Does IOFF functionality activate automatically when VCC drops below a threshold?

Yes. The IOFF circuit engages when VCC falls below approximately 0.25V, disabling both output FETs to block current flow. This occurs passively-no enable pin or external control is needed. Measured IOFF leakage remains ≤±2μA from VCC = 0V up to 0.25V, ensuring safe isolation during brown-out or controlled power-down sequences.