STMicroelectronics 74V2G32STR

Overview

74V2G32STR from STMicroelectronics is a dual 2-input OR gate in SOT23-8L package, operating from 2V to 5.5V, with 3.0ns typical propagation delay at 5V, ±8mA output drive at 4.5V, and power-down input/output protection. It enables level-shifting between 3V and 5V logic domains in portable battery-powered systems.

For engineers reviewing the 74V2G32STR datasheet, 74V2G32STR pinout, 74V2G32STR application, or 74V2G32STR equivalent, key selection criteria include dual-gate logic function, rail-to-rail input tolerance (0–7V), symmetrical output drive strength, and guaranteed operation down to −55°C for industrial embedded control.

Technical Context

This device implements two independent CMOS OR gates using sub-micron C2MOS technology with three-stage buffered outputs. Its input structure accepts voltages up to 7V regardless of VCC, enabling robust interfacing across mixed-voltage systems without external clamping.

The internal design includes dedicated power-down protection diodes on all I/O pins and ESD-hardened circuitry meeting >2kV HBM. Propagation delays are balanced (tPLH ≅ tPHL), and noise immunity is specified at ≥28% VCC for both high and low thresholds.

Key Specifications

Pinout & Package

SOT23-8L (8-pin small outline transistor) package with exposed pad not present; surface-mount, lead-free compatible, tape-and-reel format (TR).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G32DBVR and NC7SZ32P5X, the 74V2G32STR uniquely delivers 0–7V input tolerance with integrated power-down protection in a dual-gate SOT23-8L package - making it irreplaceable for mixed-voltage fail-safe logic merging.

Availability

74V2G32STR is available at Aetrix Electronics and suitable for portable power management, industrial sensor interface, and automotive body control requiring stable component supply despite its obsolete status through verified legacy channel sourcing.

Supply support for 74V2G32STR 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 consumer markets.

The 74V series targets high-speed, low-power CMOS logic with enhanced ruggedness for portable and mixed-voltage embedded systems - emphasizing input overvoltage tolerance, ESD resilience, and wide operating temperature range.

FAQ

Is the 74V2G32STR pin-compatible with standard 74-series dual OR gates?

No. The 74V2G32STR uses an 8-pin SOT23-8L package with non-standard pinout (e.g., Pin 3 = 1Y, Pin 7 = 2Y), differing from DIP-14 or SO-14 74-series footprints. It is not a drop-in replacement for legacy 74LS32 or 74HC32 packages.

Can the 74V2G32STR safely interface a 5V microcontroller to a 3.3V FPGA?

Yes. Its inputs tolerate 0–7V regardless of VCC, and outputs swing rail-to-rail. With VCC = 3.3V, it correctly interprets 5V inputs as HIGH and drives 3.3V-compatible logic levels - no external resistors or translators needed.

What is the maximum capacitive load this device can drive reliably?

The AC specs guarantee timing performance up to 50pF load capacitance. Driving >50pF may increase propagation delay beyond 9.0ns (max at −55°C to +125°C) and risk signal integrity; add series termination or buffer stages for heavier loads.

Does the 74V2G32STR support partial power-down operation?

Yes. All inputs and outputs remain protected and high-impedance when VCC = 0V. Inputs accept 0–7V without sinking current or causing latch-up, and outputs do not back-drive - enabling safe hot-plug or subsystem power sequencing.