Diodes Incorporated 74HC32S14-13

Overview

74HC32S14-13 from Diodes Incorporated is a quad 2-input OR gate IC in SO-14 package, operating from 2.0V to 6.0V supply, delivering 4mA output drive at 4.5V, with Schmitt-trigger inputs and CMOS low-power logic for digital signal combining in embedded control interfaces.

For engineers reviewing the 74HC32S14-13 datasheet, 74HC32S14-13 pinout, 74HC32S14-13 application, or 74HC32S14-13 equivalent, key selection criteria include input voltage thresholds (VIH=3.15V @4.5V), propagation delay (9ns typ @4.5V), output drive capability, ESD robustness (2kV HBM), and SO-14 thermal and layout compatibility.

Technical Context

This device implements four independent Boolean OR functions (Y = A + B) using standard CMOS push-pull outputs. Each gate features Schmitt-trigger inputs for noise immunity on slow or noisy signals, enabling reliable operation in mixed-signal environments without external hysteresis components.

It operates across industrial temperature range (–40°C to +125°C) with guaranteed VIH/VIL thresholds, 4mA sink/source capability at 4.5V, and propagation delays as low as 7ns (typ) at 6.0V - supporting synchronous logic interfacing in microcontroller peripheral expansion and bus arbitration circuits.

Key Specifications

Pinout & Package

74HC32S14-13 is housed in a 14-pin Small Outline (SO-14) package with 1.27mm pitch, 8.6mm body length, and 3.9mm width - compatible with standard reflow profiles and IPC-7351B land patterns.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74HC32DR and MC74HC32ADTR2G, the 74HC32S14-13 offers identical core logic performance in a widely adopted SO-14 package with Diodes Inc.'s industrial-grade ESD robustness (2kV HBM), making it optimal for cost-sensitive, high-volume industrial control boards where package interchangeability and supply chain resilience are prioritized.

Availability

74HC32S14-13 is available at Aetrix Electronics and suitable for industrial control panels, sensor fusion modules, and embedded communication gateways requiring stable component supply and long-term manufacturability.

Supply support for 74HC32S14-13 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and Malaysia.

The 74HC logic family targets general-purpose digital interfacing and glue logic in cost-sensitive, high-reliability applications - emphasizing wide supply tolerance, robust ESD protection, and industrial temperature operation.

FAQ

What is the maximum recommended operating frequency for 74HC32S14-13?

The device does not specify a maximum clock frequency, but its typical propagation delay is 9ns at 4.5V with 50pF load. For reliable combinational logic operation, maximum toggle rate is ~30MHz under ideal layout conditions; actual system frequency depends on fan-out, trace capacitance, and supply stability.

Can unused inputs be left floating?

No - unused inputs must be tied to VCC or GND per datasheet Note 6. Floating inputs cause increased ICC, erratic output states, and potential oscillation due to CMOS input stage metastability; this also degrades noise immunity and ESD performance.

Does 74HC32S14-13 support mixed-voltage interfacing between 3.3V and 5V systems?

Yes - with VCC = 3.3V, VIH is 2.31V (70% of VCC), accepting 3.3V logic highs; with VCC = 5.0V, VOH reaches 4.9V, safely driving 5V TTL inputs. Level translation is unidirectional (output-driven), not bidirectional.

Is the SO-14 package RoHS and halogen-free?

Yes - the 74HC32S14-13 is fully RoHS compliant (2011/65/EU), lead-free, and halogen-free per Diodes Inc.'s definition: <900ppm Br, <900ppm Cl, <1000ppm Sb, verified per JESD22-A112 test methods.