Diodes Incorporated 74LVC08AT14-13

Overview

74LVC08AT14-13 from Diodes Incorporated is a quadruple 2-input AND gate logic IC operating across 1.65V–5.5V supply, with 5.5V-tolerant inputs, IOFF partial-power-down protection, and ±24mA output drive at 3.3V. It enables voltage translation between 3.3V and 5V domains in mixed-supply systems such as notebook I/O expansion and peripheral interface control.

For engineers reviewing the 74LVC08AT14-13 datasheet, 74LVC08AT14-13 pinout, 74LVC08AT14-13 application, or 74LVC08AT14-13 equivalent, this device supports critical design tasks including power-down isolation, level-shifting logic gating, and low-power CMOS-compatible signal conditioning in space-constrained TSSOP-14 layouts.

Technical Context

The 74LVC08AT14-13 implements four independent positive-logic AND functions (Y = A • B) with rail-to-rail input tolerance up to 5.5V and guaranteed operation down to 1.65V VCC. Its IOFF circuit actively disables outputs during power-down to prevent backflow current into powered subsystems.

Propagation delay is specified from 2.6ns (typ, 3.3V) to 9.3ns (max, 1.65V), with output skew ≤1.5ns. Input clamp diodes and ESD protection exceed JESD22-A114 (2kV HBM), supporting robust operation in noisy industrial and consumer environments.

Key Specifications

Pinout & Package

TSSOP-14 package: 4.4mm × 5.0mm body, 0.65mm pitch, thin-profile surface-mount with exposed thermal pad not present. Pin 1 marked by notch or dot; top-view orientation per datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC08APWRE4 and 74AHC08T14-13, the 74LVC08AT14-13 uniquely balances 24mA drive, 5.5V input tolerance, and IOFF protection - making it optimal for mixed-voltage embedded systems requiring both performance and safe power sequencing.

Availability

74LVC08AT14-13 is available at Aetrix Electronics and suitable for PC I/O expansion, USB peripheral interface, and industrial sensor signal conditioning requiring stable component supply across automotive, computing, and industrial end markets.

Supply support for 74LVC08AT14-13 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, low-power, and mixed-signal solutions for computing, industrial, and automotive applications.

The 74LVC08AT14-13 belongs to Diodes' LVC logic family, engineered for interoperability across voltage domains and robust operation in thermally demanding, space-constrained PCB layouts.

FAQ

Can 74LVC08AT14-13 operate reliably at 1.65V supply?

Yes. The device is fully characterized from 1.65V to 5.5V, with guaranteed propagation delay ≤9.3ns and VIH/VIL thresholds defined across this range. At 1.65V, input high threshold is 0.65×VCC (≈1.07V), and output drive remains functional at reduced current levels appropriate for ultra-low-power designs.

What happens to outputs during power-down when VCC = 0V?

IOFF circuitry activates automatically, disabling all outputs and limiting leakage current to ≤20μA. This prevents reverse current flow from live inputs (e.g., 5V signals) into the unpowered VCC rail, protecting upstream drivers and avoiding latch-up risk in partial-power-down systems.

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

Yes. The 74LVC08AT14-13 is fully RoHS 3 compliant (2015/863/EU), lead-free, and halogen-free - containing <900ppm bromine, <900ppm chlorine (<1500ppm total Br+Cl), and <1000ppm antimony compounds - meeting Diodes' "Green" product definition.

How does input capacitance affect high-speed switching?

Each input exhibits 4pF typical capacitance. At 10MHz, this contributes ~0.4mW per gate to dynamic power (Cpd = 8.0pF @ 3.3V). For >50MHz operation, layout must minimize trace length and stubs to avoid signal integrity degradation due to combined pin + trace capacitance.