STMicroelectronics 74V1G04STR

Overview

74V1G04STR from STMicroelectronics is a single high-speed CMOS inverter in SOT23-5L package, operating from 2V to 5.5V supply, with 3.8ns typical propagation delay at 5V, ±8mA symmetrical output drive, and input tolerance up to 7V independent of VCC - used for level-shifting between 5V and 3V logic domains in industrial control interfaces.

For engineers reviewing the 74V1G04STR datasheet, 74V1G04STR pinout, 74V1G04STR application, or 74V1G04STR equivalent, key selection criteria include input overvoltage tolerance (0–7V), power-down protected inputs, balanced tPLH/tPHL delays, and guaranteed 8mA drive capability at 4.5V.

Technical Context

This device implements a three-stage buffered inverter topology using sub-micron C2MOS technology, delivering high noise immunity (VNIH/VNIL ≥ 28% VCC) and latch-up robustness. Its input stage accepts voltages from –0.5V to +7.0V regardless of VCC, enabling safe hot-swap and mixed-voltage interfacing.

The output stage provides symmetrical sourcing/sinking (|IOH| = IOL ≥ 8mA at VCC = 4.5V) with matched propagation delays (tPLH ≅ tPHL), supporting clean signal inversion in timing-critical paths such as clock buffering and enable signal conditioning.

Key Specifications

Pinout & Package

SOT23-5L package: 5-pin surface-mount plastic package with exposed pad option (not electrically connected), footprint compatible with JEDEC MO-178AB, thermal resistance θJA ≈ 220°C/W.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G04DBVR and NC7SZ04P5X, the 74V1G04STR uniquely supports 0–7V inputs at any VCC and operates across –55°C to +125°C, making it the only choice for ruggedized level translation in harsh environments.

Availability

74V1G04STR is available at Aetrix Electronics and suitable for industrial PLC I/O conditioning, automotive body control modules, and medical diagnostic equipment requiring stable component supply across extended temperature and mixed-voltage conditions.

Supply support for 74V1G04STR 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 analog, digital, and mixed-signal ICs for industrial, automotive, and power applications.

The 74V series targets high-speed, low-power logic interfacing in demanding environments, emphasizing robustness, wide supply range, and mixed-voltage compatibility.

FAQ

Is 74V1G04STR pin-compatible with other SOT23-5 inverters like SN74LVC1G04?

No - 74V1G04STR has Pin 1 as NC, whereas SN74LVC1G04 uses Pin 1 as GND. This difference requires PCB layout revision. The functional pin mapping (input on Pin 2, output on Pin 4, VCC on Pin 5) is preserved, but NC vs. GND placement affects grounding strategy and decoupling.

Can 74V1G04STR safely interface a 5V microcontroller GPIO to a 3.3V ADC's active-low /CS line?

Yes - its input accepts 0–7V regardless of VCC, so a 5V GPIO can directly drive Pin 2 while VCC = 3.3V. The inverter output (Pin 4) swings rail-to-rail, delivering a clean 0–3.3V /CS signal with <4ns delay and no level-shifter components required.

What is the maximum capacitive load this inverter can drive while maintaining 3.8ns tPD?

The 3.8ns typical propagation delay is specified at CL = 15pF and VCC = 5.0V. At CL = 50pF, tPD increases to 4.7ns. For loads >50pF, delay rises further and output edge rate degrades; keep total node capacitance ≤50pF for timing-critical paths requiring <5ns delay.

Does 74V1G04STR require external pull-up or pull-down resistors on unused pins?

Pin 1 is NC and must be left unconnected - no pull-up/down needed. Pins 2 (input) and 4 (output) should follow system-level termination rules. GND (Pin 3) and VCC (Pin 5) require standard 100nF local decoupling; no additional biasing is required for correct logic operation.