Nexperia USA Inc. 74HCT1G32GW,125

Overview

74HCT1G32GW,125 from Nexperia is a single 2-input OR gate logic IC with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), 5-pin TSSOP5 (SOT353-1) package, −40 °C to +125 °C operating range, and propagation delay of 10 ns (typ) at VCC = 4.5 V and CL = 50 pF. It serves as a discrete logic building block in level-shifting, signal combining, and enable-gating functions within industrial control and sensor interface circuits.

For engineers reviewing the 74HCT1G32GW,125 datasheet, 74HCT1G32GW,125 pinout, 74HCT1G32GW,125 application, or 74HCT1G32GW,125 equivalent, key selection criteria include TTL-level input compatibility, guaranteed operation up to +125 °C, symmetrical output drive (±2.0 mA), low ICC (≤20 μA max), and validated performance under 50 pF capacitive load conditions.

Technical Context

This device implements a single 2-input positive-logic OR function (Y = A + B) using silicon-gate CMOS technology. Its inputs feature integrated clamp diodes enabling safe interfacing to voltages exceeding VCC when used with current-limiting resistors.

The 74HCT1G32GW,125 operates within a strict 4.5–5.5 V supply range and delivers TTL-compatible input thresholds while maintaining CMOS-level output swing (VOH ≥ 4.13 V, VOL ≤ 0.33 V at IO = ±2.0 mA). Propagation delays are balanced between rising and falling edges (tPLH ≈ tPHL), supporting deterministic timing in synchronous logic paths.

Key Specifications

Pinout & Package

TSSOP5 plastic thin shrink small outline package (SOT353-1), 5-lead, body width 1.25 mm, pin pitch 0.65 mm, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HCT1G32GW,125, the 74LVC1G32GW,125 trades TTL input compatibility for wider voltage scalability and lower quiescent current, while the SN74LVC1G32DBVR provides identical functionality in an industry-standard SOT-23 package-enabling drop-in replacement where board layout permits.

Availability

74HCT1G32GW,125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, power sequencing control, legacy bus signal conditioning, and configurable logic subsystems requiring stable component supply across extended temperature ranges.

Supply support for 74HCT1G32GW,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 global semiconductor expert delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial and automotive applications.

The 74HCT1G32GW,125 belongs to Nexperia's 74HCT logic family, engineered specifically to bridge TTL and CMOS domains with robust noise immunity, wide temperature operation, and proven latch-up resistance for mission-critical embedded systems.

FAQ

What is the maximum recommended operating frequency for 74HCT1G32GW,125?

The device does not specify a maximum clock frequency, but its typical propagation delay of 10 ns at VCC = 4.5 V and CL = 50 pF supports reliable operation up to approximately 10 MHz in toggle-mode applications. For sustained high-speed use, ensure load capacitance remains ≤50 pF and maintain proper power supply decoupling.

Can 74HCT1G32GW,125 operate with a 3.3 V supply?

No. The 74HCT1G32GW,125 is specified only for 4.5 V to 5.5 V operation. At 3.3 V, input thresholds fall outside TTL specification (VIH would be too low), and output drive capability degrades significantly. Use 74LVC1G32GW,125 instead for 3.3 V compatibility.

Does this part support hot insertion or live swapping?

No. The 74HCT1G32GW,125 lacks Ioff (power-off protection) or live-insertion features. Applying input signals before VCC stabilization may cause excessive current flow through internal clamp diodes. Always sequence VCC before applying inputs in hot-swap systems.

How does the TSSOP5 (SOT353-1) package compare thermally to SC-74A (SOT753)?

The TSSOP5 package has a thermal resistance (RθJA) of 220 K/W, versus ~200 K/W for SC-74A. While both are rated for +125 °C ambient, the SC-74A offers marginally better heat dissipation. However, total power dissipation remains limited to 250 mW at +74 °C (derated above), making thermal design dependent on PCB copper area and airflow-not just package type.