Nexperia USA Inc. 74HC32PW,112

Overview

74HC32PW,112 from Nexperia is a quad 2-input OR gate in TSSOP14 package, operating from 2.0 V to 6.0 V supply, delivering symmetrical output impedance, balanced propagation delays (6–27 ns), and CMOS-level input compatibility. It serves as a fundamental combinational logic building block in digital control subsystems of industrial PLC I/O modules, where discrete signal aggregation and status encoding are required.

For engineers reviewing the 74HC32PW,112 datasheet, 74HC32PW,112 pinout, 74HC32PW,112 application, or 74HC32PW,112 equivalent, key selection criteria include guaranteed operation at -40 °C to +125 °C, input clamp diodes enabling overvoltage-tolerant interfacing, HBM ESD rating >2000 V, and verified dynamic performance under 50 pF load with 4.5 V supply.

Technical Context

This device implements four independent OR logic functions using standard CMOS silicon technology, with inputs featuring integrated clamp diodes for current-limited overvoltage protection up to ±20 mA. Each gate exhibits matched HIGH/LOW output drive capability (±4.0 mA at 4.5 V) and identical propagation delay symmetry between t_PHL and t_PLH.

The 74HC32PW,112 operates within JEDEC-compliant voltage ranges (JESD7A: 2.0–6.0 V), supports TTL-compatible input thresholds only in the 74HCT variant, and maintains stable logic behavior across its full industrial temperature range without derating until ambient exceeds +81 °C - where TSSOP14 power dissipation linearly derates at 7.3 mW/K.

Key Specifications

Pinout & Package

TSSOP14 plastic thin shrink small outline package (SOT402-1); 14 leads; body width 4.4 mm; 0.65 mm lead pitch; exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74HC32PW,112, the 74HCT32PW,112 offers superior compatibility with legacy 5 V TTL outputs but sacrifices some noise margin in mixed-voltage systems, while the SN74HC32PWR trades compactness and thermal efficiency for mechanical robustness and ease of manual assembly.

Availability

74HC32PW,112 is available at Aetrix Electronics and suitable for industrial automation, motor control, embedded system status encoding, and legacy bus signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for 74HC32PW,112 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 specializing in high-performance, reliable logic, analog, and discrete components for automotive, industrial, and consumer applications.

The 74HC32PW,112 belongs to Nexperia's industry-standard 74HC logic family, designed for robust, low-power digital interfacing in harsh environments where wide supply range and high ESD tolerance are essential.

FAQ

Can 74HC32PW,112 operate reliably at 2.0 V supply?

Yes - the 74HC32PW,112 is fully specified down to 2.0 V supply, with guaranteed VIH ≥ 1.5 V and VOL ≤ 0.5 V at that voltage. Propagation delay increases to 90 ns (max) at 2.0 V, but all logic functionality remains intact across the full -40 °C to +125 °C range.

What is the purpose of the exposed pad on the TSSOP14 package?

The exposed pad in SOT402-1 is a thermal enhancement feature, not an electrical terminal. Nexperia specifies it as non-functional: no electrical or mechanical requirement exists to solder it. If soldered, it must remain floating or connect solely to GND - never to VCC or signal nets.

How does input clamping protect this device during overvoltage events?

Each input includes internal clamp diodes to VCC and GND. When an input voltage exceeds VCC + 0.5 V or falls below GND − 0.5 V, current flows through the diode. With a series resistor limiting current to ≤20 mA, the device avoids damage while maintaining logic state integrity.

Is 74HC32PW,112 pin-compatible with 74HC32 variants in other packages?

Yes - all 74HC32 variants (SO14, TSSOP14, DHVQFN14, DHXQFN14) share identical pin numbering and function mapping per the SOT402-1 pinout diagram. Signal routing, PCB footprint, and schematic symbol remain interchangeable across packages; only thermal and mechanical constraints differ.