STMicroelectronics 74V1GU04STR

Overview

74V1GU04STR from STMicroelectronics is a single-stage unbuffered CMOS inverter operating from 2V to 5.5V, delivering 3.5ns typical propagation delay at 5V, ±8mA symmetrical output drive, and input tolerance up to 7V independent of supply. It enables level-shifting between 5V and 3V systems and supports crystal oscillator biasing in analog timing circuits.

For engineers reviewing the 74V1GU04STR datasheet, 74V1GU04STR pinout, 74V1GU04STR application, or 74V1GU04STR equivalent, key selection criteria include unbuffered inverter topology, 7V-tolerant inputs, sub-5ns AC performance at 5V, and SOT23-5L packaging for space-constrained logic interfacing and oscillator feedback paths.

Technical Context

This device implements a single-stage inverter without internal buffering-critical for low-phase-noise crystal oscillator configurations where gate capacitance and propagation symmetry directly impact loop stability. Its input protection diodes accept 0–7V regardless of VCC, enabling robust level translation across mixed-voltage domains.

The symmetrical output impedance (|IOH| = IOL ≥ 8mA at 4.5V) and balanced tPLH/tPHL ensure minimal duty-cycle distortion in clock regeneration and pulse inversion applications. Quiescent ICC ≤ 1µA at 25°C supports ultra-low-power always-on signal conditioning.

Key Specifications

Pinout & Package

SOT23-5L package: 5-pin surface-mount plastic package with exposed pad not present; body dimensions 2.80–3.00mm × 1.50–1.75mm × 1.10–1.30mm height; lead pitch 0.95mm; RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G04DBVR and NC7SZ04P5X, the 74V1GU04STR uniquely combines unbuffered topology, 7V-tolerant inputs, and 2–5.5V operation-making it the sole choice for crystal oscillator biasing and mixed-voltage level shifting where input overvoltage resilience is mandatory.

Availability

74V1GU04STR is available at Aetrix Electronics and suitable for crystal oscillator design, mixed-voltage level translation, and low-power reset conditioning requiring stable component supply across automotive infotainment, industrial PLC I/O modules, and portable medical instrumentation.

Supply support for 74V1GU04STR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power ICs, sensors, and discrete components for industrial, automotive, and consumer markets.

The 74V series targets high-speed, low-power CMOS logic with enhanced robustness-specifically engineered for demanding timing, interface, and mixed-voltage applications where reliability and signal integrity are critical.

FAQ

Can the 74V1GU04STR be used in a Pierce oscillator circuit?

Yes. Its unbuffered single-stage inverter architecture, low input capacitance (≤10pF), and symmetrical output drive make it explicitly suitable for Pierce oscillator configurations. The device provides the necessary gain and phase inversion while minimizing added phase noise-confirmed in STMicroelectronics Application Note AN2867 for quartz resonator biasing.

What is the maximum input voltage when VCC = 0V?

When VCC = 0V, the input can safely tolerate −0.5V to +7.0V due to built-in diode clamps to GND and the (absent) VCC rail. This enables hot-plug compatibility and prevents latch-up during power sequencing-verified under Absolute Maximum Ratings and confirmed in the Input Equivalent Circuit diagram on page 2 of the datasheet.

Does Pin 1 (NC) require any PCB layout consideration?

Pin 1 is internally unconnected and must remain floating or be tied to GND for mechanical stability-never connected to VCC or signal nets. STMicroelectronics' SOT23-5L footprint guidelines specify no electrical connection, and routing to it may induce parasitic coupling or solder bridging; keep clearance ≥0.2mm from adjacent traces.

How does the 74V1GU04STR handle 5V inputs while powered from 3.3V?

It accepts 5V inputs while operating from 3.3V due to input protection diodes clamped to GND and VCC. With VCC = 3.3V, the upper diode conducts only if input exceeds VCC + 0.5V, but the absolute max rating allows VI up to 7.0V-so 5V remains within safe limits and causes no damage or functional disruption.