STMicroelectronics 74V1G32CTR

Overview

74V1G32CTR from STMicroelectronics is a single 2-input OR gate in SOT323-5L package, operating from 2V to 5.5V supply, delivering 3.8ns typical propagation delay at 5V, ±8mA symmetrical output drive, and 1µA max quiescent current at 25°C - used for level-shifting logic interfaces between 3V and 5V systems.

For engineers reviewing the 74V1G32CTR datasheet, 74V1G32CTR pinout, 74V1G32CTR application, or 74V1G32CTR equivalent, key selection criteria include input voltage tolerance (0–7V independent of VCC), latch-up immunity, power-down input protection, noise margin (28% VCC min), and SOT323-5L thermal and board-space constraints.

Technical Context

This device implements a CMOS-based 2-input OR function using sub-micron C2MOS technology with two-stage buffered output, enabling high noise immunity and stable switching across wide voltage and temperature ranges (–55°C to +125°C). Input structures accept 0–7V regardless of VCC, supporting robust 5V-to-3V interfacing without external clamping.

Its symmetrical output impedance (|IOH| = IOL ≥ 8mA at VCC = 4.5V) and balanced tPLH/tPHL delays ensure consistent rise/fall timing in bidirectional signal paths, while power-down protection prevents back-driving during supply sequencing or standby modes.

Key Specifications

Pinout & Package

SOT323-5L: 5-pin ultra-small surface-mount package (1.80 × 2.40 mm body, 0.65 mm pitch), optimized for high-density PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G32DBVR and NC7SZ32P5X, the 74V1G32CTR uniquely combines 7V input tolerance, –55°C to +125°C operation, and power-down protection - making it the only option among the three qualified for automotive and industrial systems with uncontrolled input voltage excursions.

Availability

74V1G32CTR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, portable medical monitor front-ends, and 5G small cell baseband timing interfaces requiring stable component supply across extended temperature and mixed-voltage conditions.

Supply support for 74V1G32CTR 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 consumer markets.

The 74V series targets high-speed, low-power, and high-immunity logic functions for demanding embedded applications - emphasizing robustness, voltage flexibility, and long-term industrial availability.

FAQ

Can 74V1G32CTR be used with 1.8V logic?

No. The minimum recommended VCC is 2.0V per STMicroelectronics' datasheet. At 1.8V, VIH/VIL thresholds fall outside specification, and output drive strength degrades significantly below guaranteed levels. For 1.8V systems, consider LVC or AUP series alternatives explicitly rated down to 1.65V.

Does 74V1G32CTR require external pull-up or pull-down resistors on inputs?

No. Inputs are internally protected and do not float; they exhibit <±1µA leakage at 25°C and maintain defined logic states across full VCC range. External resistors are unnecessary unless specific bus-keeping or fail-safe biasing is required by system architecture.

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

The AC specifications are characterized up to 50pF. Driving >50pF increases propagation delay nonlinearly and may cause ringing or undershoot due to limited output slew rate. For >50pF loads, add a series resistor (22–47Ω) near the output to dampen reflections without compromising logic thresholds.

Is 74V1G32CTR pin-compatible with other SOT323-5L OR gates?

Yes - pin 1 (1A), pin 2 (1B), pin 3 (GND), pin 4 (1Y), and pin 5 (VCC) follow JEDEC-standard SOT323-5L pinout. However, functional compatibility depends on voltage ratings, timing, and input protection - e.g., SN74LVC1G32 shares pinout but lacks 7V input tolerance and extended temperature range.