Diodes Incorporated 74AHC32T14-13

Overview

74AHC32T14-13 from Diodes Incorporated is a quad 2-input OR gate IC in TSSOP-14 package, operating from 2.0V to 5.5V supply, with 5.5V-tolerant inputs, 8mA output drive at 4.5V, and Schmitt-trigger inputs for noise immunity-used in voltage translation and mixed-supply logic interfacing in PC peripherals and set-top boxes.

For engineers reviewing the 74AHC32T14-13 datasheet, 74AHC32T14-13 pinout, 74AHC32T14-13 application, or 74AHC32T14-13 equivalent, key selection criteria include input voltage tolerance (5.5V), propagation delay (≤7.0 ns at 5V/50pF), output drive capability (±8mA), Schmitt-trigger hysteresis, and TSSOP-14 thermal performance in space-constrained embedded control interfaces.

Technical Context

The 74AHC32T14-13 implements four independent non-inverting OR logic functions (Y = A + B) using advanced CMOS process technology. Each gate features Schmitt-trigger inputs with typical hysteresis of 0.3V at VCC = 3.3V, enabling robust operation in noisy environments.

It supports mixed-voltage system interfacing via 5.5V-tolerant inputs while powered from as low as 2.0V, and delivers rail-to-rail push-pull outputs capable of sinking or sourcing up to 8mA at VCC = 4.5V with VOL ≤ 0.55V and VOH ≥ 3.70V.

Key Specifications

Pinout & Package

TSSOP-14 (Thin Shrink Small Outline Package, 4.4mm × 5.0mm body, 0.65mm pitch) with exposed pad not electrically connected; optimized for automated assembly and thermal dissipation in high-density PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AHC32PW, the 74AHC32T14-13 offers identical functional behavior and pinout but with Diodes' qualification for industrial temperature range and halogen-free "Green" compliance. Versus 74LVC32AT14, it trades higher drive strength for essential 5.5V input tolerance and noise-immune Schmitt inputs in mixed-voltage applications.

Availability

74AHC32T14-13 is available at Aetrix Electronics and suitable for PC peripheral interface design, set-top box control logic, notebook keyboard matrix decoding, and industrial I/O expansion modules requiring stable component supply and RoHS-compliant packaging.

Supply support for 74AHC32T14-13 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, specializing in high-reliability, energy-efficient components for computing, consumer, and industrial markets.

The 74AHC32 belongs to Diodes' AHC logic family-designed for low-power, high-speed CMOS compatibility across mixed-voltage digital systems with emphasis on robustness and manufacturability.

FAQ

Can 74AHC32T14-13 be used with 2.5V supply?

Yes. The device is fully specified down to 2.0V supply, with guaranteed VIH = 1.5V and VIL = 0.5V at VCC = 2.0V. Output VOH reaches 1.9V (min) and VOL remains ≤0.1V, supporting reliable interfacing with other 2.5V logic families such as LVC or ALVC without level shifters.

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

At VCC = 4.5V, the 74AHC32T14-13 maintains ≤7.0 ns propagation delay with CL = 50pF. Driving loads beyond 50pF increases delay nonlinearly and may cause marginal timing in high-speed paths; for >100pF, add series termination or buffer stage per manufacturer's layout guidelines.

Does this part have internal ESD protection on all pins?

Yes. It exceeds JESD22-A114 (2000V HBM), JESD22-C101 (1000V CDM), and JESD22-A115 (200V MM) standards on all I/O pins. No external TVS diodes are required for standard board-level ESD immunity per IEC 61000-4-2 Level 2 (4kV contact).

Is the TSSOP-14 package thermally enhanced?

No. The TSSOP-14 variant lacks an exposed thermal pad; its θJA is 150°C/W (typical). For sustained 8mA output loading at ambient >85°C, limit duty cycle or add local copper pour under the package per Diodes' AP02001 recommended pad layout.