NXP Semiconductors 74LVC08AD,112

Overview

74LVC08AD from Nexperia is a quad 2-input AND gate in SO14 (SOT108-1) package, operating from 1.2 V to 3.6 V supply, with overvoltage-tolerant inputs up to 5.5 V and Schmitt-trigger inputs for noise immunity. It enables level translation between 3.3 V and 5 V logic domains and supports industrial temperature range (−40 °C to +125 °C). Used in bus interface logic, control signal gating, and mixed-voltage system synchronization.

For engineers reviewing the 74LVC08AD datasheet, 74LVC08AD pinout, 74LVC08AD application, or 74LVC08AD equivalent, key selection criteria include input voltage tolerance (5.5 V), propagation delay (≤4.8 ns at 3.3 V), output drive strength (±24 mA), thermal rating (125 °C), and SO14 package compatibility with legacy PCB footprints.

Technical Context

This device implements four independent CMOS AND gates with Schmitt-trigger inputs, enabling robust operation with slow-rising or noisy signals. Each gate performs standard Boolean AND logic: output HIGH only when both inputs are HIGH; otherwise LOW.

It complies with JEDEC standards JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V), ensuring interoperability across multiple low-voltage logic families. Input clamping and ESD protection (HBM >2000 V, CDM >1000 V) support reliable operation in industrial environments.

Key Specifications

Pinout & Package

74LVC08AD uses the SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, and standard JEDEC MS-012 footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC08APWR and 74AHC08D, the 74LVC08AD offers superior mixed-voltage interoperability via 5.5 V input tolerance at 1.2–3.6 V supply, plus legacy SO14 footprint compatibility - making it optimal for industrial retrofits and cost-sensitive volume designs where thermal margin exceeds 100 °C.

Availability

74LVC08AD is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, USB hub power control logic, and automotive body control modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 74LVC08AD 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, reliable logic, analog, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in mass-market electronics.

The 74LVC08A belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for low-power, mixed-voltage digital interfacing in industrial, computing, and consumer applications where voltage translation and noise immunity are critical.

FAQ

Can 74LVC08AD operate with a 1.2 V supply and still accept 5 V inputs?

Yes. The 74LVC08AD features overvoltage-tolerant inputs rated to 5.5 V regardless of VCC level. At 1.2 V supply, inputs remain functional and clamped, enabling safe interfacing with higher-voltage peripherals without external components. This is confirmed in Table 4 (Limiting Values) and Section 2 (Features and benefits).

What is the maximum output current per pin, and how is it specified?

The 74LVC08AD delivers ±24 mA per output (VOH/VOL) at VCC = 3.0 V, as specified in Table 6 (Static characteristics). This is measured under defined load conditions: VOH tested with IO = −24 mA (sourcing), VOL with IO = +24 mA (sinking), and guaranteed across −40 °C to +125 °C.

Does the SO14 package (SOT108-1) have thermal pad or exposed die attach?

No. The SO14 (SOT108-1) package used by 74LVC08AD is a standard plastic small outline package with gull-wing leads and no thermal pad or exposed copper. Thermal dissipation relies on PCB copper area connected to pins 7 (GND) and 14 (VCC), with Ptot = 500 mW at Tamb ≤ 100 °C (derating above that point).

How does Schmitt-trigger input behavior affect timing analysis?

Schmitt-trigger inputs provide hysteresis (≥0.35VCC), increasing noise margin but introducing slight asymmetry in rising/falling propagation delays. For timing-critical paths, tPHL and tPLH differ by ≤0.5 ns at 3.3 V (Table 7), and skew between outputs is guaranteed ≤1.5 ns - both values must be included in setup/hold margin calculations.