STMicroelectronics 74V1G02STR

Overview

74V1G02STR from STMicroelectronics is a single 2-input NOR gate in SOT23-5L package, operating from 2V to 5.5V supply, with 3.6ns typical propagation delay at 5V, ±8mA symmetrical output drive, and input tolerance up to 7V independent of VCC-enabling robust 5V-to-3V logic interfacing in industrial control I/O modules.

For engineers reviewing the 74V1G02STR datasheet, 74V1G02STR pinout, 74V1G02STR application, or 74V1G02STR equivalent, key selection criteria include its rail-to-rail input voltage acceptance (0–7V), power-down protected inputs, balanced tPLH/tPHL delays, and guaranteed 1µA max ICC at 25°C for ultra-low static power in battery-backed systems.

Technical Context

This device implements a three-stage CMOS buffer-output architecture using sub-micron C2MOS technology, delivering high noise immunity (VNIH/VNIL ≥ 28% VCC) and latch-up immunity. Its input structure accepts 0–7V regardless of VCC, enabling level-shifting without external components.

The symmetrical output impedance (|IOH| = IOL ≥ 8mA at VCC = 4.5V) and balanced propagation delays (tPLH ≅ tPHL) ensure predictable timing in both rising and falling edges across temperature ranges from –55°C to +125°C.

Key Specifications

Pinout & Package

SOT23-5L package: 5-pin surface-mount, 1.45mm height, 2.80 × 2.60 mm footprint, tape-and-reel compatible (EIA-481 compliant).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single 2-input NOR gate applications.

Compared with SN74LVC1G02DBVR and NC7SZ02P5X, the 74V1G02STR uniquely supports true 0–7V input operation with full –55°C to +125°C qualification and power-down protection-making it the only option for legacy 5V sensor integration into modern low-voltage controllers without redesign.

Availability

74V1G02STR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump interfaces, and smart energy meter tamper detection requiring stable component supply across extended temperature and voltage ranges.

Supply support for 74V1G02STR 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 automotive, industrial, and power applications.

The 74V series targets high-speed, low-power CMOS logic for industrial and automotive systems demanding robust voltage tolerance, wide temperature operation, and latch-up immunity.

FAQ

Can 74V1G02STR be used with a 3.3V supply while interfacing to 5V sensors?

Yes. The device operates from 2V to 5.5V and accepts input voltages from –0.5V to +7.0V regardless of VCC. With VCC = 3.3V, it safely reads 5V sensor outputs without level shifters or clamping diodes, and maintains valid logic thresholds (VIH = 2.31V, VIL = 0.99V).

Does 74V1G02STR require external pull-up or pull-down resistors on inputs?

No. Inputs are internally protected and do not float to undefined states. The power-down protection ensures high-impedance behavior when VCC = 0V, and the 28% VCC noise margin eliminates need for external biasing in most noise-controlled layouts.

What is the maximum capacitive load this NOR gate can drive reliably?

It is characterized up to 50pF load capacitance with specified AC performance (tPLH/tPHL). For loads exceeding 50pF, propagation delay increases linearly; design margin should maintain CL ≤ 50pF for guaranteed timing compliance per datasheet limits at –55°C to +125°C.

Is 74V1G02STR pin-compatible with other SOT23-5 logic gates like 74LVC1G02?

Yes, pinout is identical (1A, 1B, GND, 1Y, VCC), but electrical behavior differs significantly: 74V1G02STR supports 7V inputs and –55°C operation, whereas 74LVC1G02 is limited to 5.5V VIN and –40°C minimum. Mechanical compatibility does not imply functional drop-in replacement.