NXP Semiconductors 74LVC00AD,112

Overview

74LVC00AD from Nexperia is a quad 2-input NAND gate logic IC 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 systems and supports industrial temperature range (–40 °C to +125 °C). Used in digital control sequencing, bus interface conditioning, and mixed-voltage logic interfacing.

For engineers reviewing the 74LVC00AD datasheet, 74LVC00AD pinout, 74LVC00AD application, or 74LVC00AD equivalent, key selection considerations include input voltage tolerance (5.5 V), propagation delay (≤5.1 ns at 3.3 V), output drive strength (±24 mA), Schmitt-trigger hysteresis, and SO14 thermal derating behavior above 100 °C.

Technical Context

The 74LVC00AD implements four independent CMOS NAND gates with Schmitt-trigger inputs on each A/B input pair, enabling robust operation with slow-rising or noisy signals. Its input structure accepts voltages up to 5.5 V regardless of VCC, allowing direct connection to 5 V TTL outputs while powered from 1.65–3.6 V supplies.

Each gate delivers rail-to-rail CMOS-compatible outputs with VOH ≥ VCC – 0.2 V (at –24 mA) and VOL ≤ 0.55 V (at 24 mA), supporting fan-out into standard LVC/LVT families. Propagation delay is specified down to 1.0 ns (typical) at VCC = 2.7 V and scales predictably across 1.2–3.6 V operating range.

Key Specifications

Pinout & Package

74LVC00AD is housed in a plastic small outline package (SO14, SOT108-1) with 14 leads, 3.9 mm body width, and 1.27 mm lead pitch. The package features gull-wing leads, JEDEC MS-012 compliance, and a thermal derating slope of 10.1 mW/K above 100 °C.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad NAND gate applications.

Compared with SN74LVC00APWR and 74LVC00ABQ, the 74LVC00AD offers lowest assembly cost and broadest soldering process compatibility via SO14, while maintaining identical logic function, voltage tolerance, and timing specs - making it optimal for cost-sensitive industrial controls and legacy-compatible designs.

Availability

74LVC00AD is available at Aetrix Electronics and suitable for industrial control logic, power sequencing supervisors, and IoT sensor interface hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC00AD 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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The 74LVC00AD belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for robust, low-power, mixed-voltage digital interfacing in harsh environments - emphasizing voltage tolerance, ESD resilience, and wide-temperature operation.

FAQ

Can 74LVC00AD operate with a 1.2 V supply and still drive a 3.3 V LVC input?

Yes. At VCC = 1.2 V, VOH is guaranteed ≥1.08 V (min), which exceeds the VIH threshold (0.65 × VCC = 0.78 V) of downstream 1.2 V LVC devices. However, it cannot directly drive 3.3 V LVC inputs because VOH will not reach their required VIH (≥2.0 V). Use it only within same-supply or lower-VCC domains unless buffered.

Does the Schmitt-trigger input apply to both A and B pins of each gate?

Yes. All eight inputs (1A, 1B, 2A, 2B, 3A, 3B, 4A, 4B) feature identical Schmitt-trigger action per datasheet Section 1 and Table 2. This provides consistent hysteresis across all inputs, enabling reliable noise rejection regardless of which input is used for signal conditioning.

What is the maximum capacitive load the 74LVC00AD can drive at 3.3 V while maintaining 5 ns propagation delay?

Per Table 8 test conditions and Figure 5, the device is characterized with CL = 50 pF and RL = 500 Ω at VCC = 3.0–3.6 V. With 50 pF load, tpd remains ≤5.1 ns (max) across –40 °C to +125 °C. Driving >50 pF increases delay nonlinearly and may exceed timing budgets; add a buffer for loads >60 pF.

Is the GND pin (Pin 7) the only ground connection, or do other pins require grounding?

Only Pin 7 is designated as GND. Pins labeled "GND" in DHVQFN/DHXQFN variants (e.g., SOT762-1) refer to thermal pads with no electrical function unless explicitly connected to system ground. For 74LVC00AD in SO14, no secondary ground connections exist - proper decoupling between Pin 14 (VCC) and Pin 7 (GND) is mandatory for stable operation.