NXP Semiconductors 74LVC1G332GV,125

Overview

74LVC1G332GV,125 from Nexperia is a single 3-input OR gate logic IC with Schmitt-trigger inputs, IOFF partial power-down support, and dual-voltage translation capability (1.65 V to 5.5 V supply). It delivers ±24 mA output drive at 3.0 V, operates from –40 °C to +125 °C, and is housed in the SC-74 (SOT457) 6-pin surface-mount package. It enables robust signal combining in mixed-voltage I/O interfaces.

For engineers reviewing the 74LVC1G332GV,125 datasheet, 74LVC1G332GV,125 pinout, 74LVC1G332GV,125 application, or 74LVC1G332GV,125 equivalent, key selection criteria include input voltage tolerance (up to 5.5 V), IOFF-enabled power-down isolation, propagation delay down to 1.0 ns at 5.5 V, Schmitt-trigger noise immunity, and compatibility with both 3.3 V and 5 V logic domains.

Technical Context

This device implements a standard positive-logic 3-input OR function (Y = A + B + C) with fully buffered CMOS outputs. Its Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at 3.3 V), enabling reliable operation with slow or noisy signals. The IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current during partial power-down sequences.

It supports JEDEC-compliant voltage interfaces across four ranges (1.65–1.95 V, 2.3–2.7 V, 2.7–3.6 V, 4.5–5.5 V) and meets JESD8-7/8-5/8C/36 standards. Input overvoltage tolerance up to 5.5 V allows safe interfacing with higher-voltage peripherals without level shifters.

Key Specifications

Pinout & Package

74LVC1G332GV,125 uses the SC-74 (SOT457) plastic surface-mounted package: 6-lead, 1.7 mm body width, 0.65 mm pitch, 0.95 mm height, and pin 1 index marked by a notch or dot at the lower-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 3-input OR gate applications.

Compared with 74LVC1G332GV,125, the GW variant offers superior thermal handling in compact industrial enclosures, while the SN74LVC1G332DBVR introduces pinout incompatibility and looser timing specs - making the GV the optimal choice for space-constrained, mixed-voltage, and high-reliability applications requiring JEDEC-aligned interoperability.

Availability

74LVC1G332GV,125 is available at Aetrix Electronics and suitable for industrial control inputs, power sequencing monitoring, USB-C port detection, and IoT sensor hub signal aggregation requiring stable component supply across extended temperature ranges and mixed-voltage environments.

Supply support for 74LVC1G332GV,125 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

Nexperia is a leading Dutch semiconductor manufacturer specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.

The 74LVC1G332 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for robust, low-power, mixed-voltage digital interfacing in space-constrained and thermally demanding applications.

FAQ

Does 74LVC1G332GV,125 support true 5 V TTL input compatibility?

Yes. Its inputs tolerate up to 5.5 V independent of VCC, and VIH/VIL thresholds meet TTL specifications across all supported supply voltages (e.g., VIH ≥ 2.0 V at VCC = 2.7–3.6 V). This allows direct connection to 5 V TTL outputs without external level shifters or resistive dividers.

Can 74LVC1G332GV,125 be used in a system where VCC is powered down while other rails remain active?

Yes. The IOFF circuit activates automatically when VCC = 0 V, disabling the output and limiting leakage to ±2 μA maximum. This prevents backflow current from active 3.3 V or 5 V signal lines into the unpowered IC, satisfying IEC 61000-4-2 and system-level hot-swap requirements.

What is the minimum recommended load capacitance for achieving specified propagation delay?

The datasheet specifies tpd under CL = 30 pF (for VCC ≤ 2.7 V) and CL = 50 pF (for VCC ≥ 3.0 V), using defined test conditions (RL = 500 Ω or 1 kΩ, tr/tf ≤ 2.5 ns). For delays within spec, maintain total load (including trace and probe capacitance) at or below these values; exceeding them increases tpd nonlinearly.

Is the Schmitt-trigger hysteresis adjustable or fixed?

Fixed. Hysteresis is an inherent property of the input stage design, with typical ΔV = 0.3 V at VCC = 3.3 V and scaling proportionally across supply ranges. It cannot be modified externally or via configuration pins - it is optimized for noise rejection in general-purpose digital interfacing.