Nexperia USA Inc. 74LVT08DB,112

Overview

74LVT08DB,112 from Nexperia is a 3.3 V quad 2-input AND gate in SO14 (SOT108-1) package, featuring IOFF partial power-down protection, ±32 mA/±64 mA output drive, 5.5 V-tolerant inputs, and operation from -40 °C to +85 °C. It serves as a level-shifting logic buffer in mixed-voltage digital control planes, such as FPGA I/O expansion and industrial PLC backplane interfaces.

For engineers reviewing the 74LVT08DB,112 datasheet, 74LVT08DB,112 pinout, 74LVT08DB,112 application, or 74LVT08DB,112 equivalent, key selection criteria include IOFF-enabled bus isolation, TTL-compatible input thresholds, guaranteed 3.9 ns max propagation delay at 3.3 V, and SO14 thermal performance under sustained 32 mA sink loads.

Technical Context

The 74LVT08DB,112 implements four independent AND gates using BiCMOS process technology, combining bipolar speed with CMOS low static power. Each gate accepts two inputs referenced to GND and delivers a single active-high output referenced to VCC.

Its IOFF circuitry actively disables outputs when VCC = 0 V, blocking reverse current flow up to 4.5 V on any pin - critical for hot-swap and partial-power-down systems. Input clamping diodes support 5.5 V tolerance without external components, enabling direct interfacing with 5 V logic buses while powered from 3.3 V.

Key Specifications

Pinout & Package

74LVT08DB,112 uses the SO14 plastic small outline package (SOT108-1), 14-pin, 3.9 mm body width, with standard 1.27 mm lead pitch and gull-wing leads. Thermal resistance (R_θJA) is 100 K/W typical, supporting continuous operation at full output load within ambient limits.

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 74ALVC08D,118, the 74LVT08DB,112 uniquely combines 5.5 V input tolerance, IOFF protection, and higher output drive - making it the sole option for industrial backplanes requiring live insertion and mixed-voltage interoperability.

Availability

74LVT08DB,112 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion interfaces, automated test equipment signal routing, and communications baseband control logic requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVT08DB,112 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 logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and manufacturability in industrial and consumer applications.

The 74LVT series targets high-speed, mixed-voltage digital systems requiring robust bus interface capability and partial power-down resilience - specifically engineered for industrial control, test equipment, and FPGA-adjacent logic.

FAQ

Does 74LVT08DB,112 support hot-swap without external protection?

Yes. Its integrated IOFF circuit disables outputs when VCC drops below ~0.5 V, blocking reverse current up to 4.5 V on any I/O pin. This eliminates the need for external MOSFETs or diodes in hot-plug applications like modular PLC I/O cards, provided VCC ramp rates comply with datasheet recommendations.

Can 74LVT08DB,112 drive a 50 Ω transmission line directly?

Yes - its -32 mA/64 mA output drive supports 50 Ω termination to VCC or GND. At 3.3 V supply, it achieves < 4 ns propagation delay into 50 pF load, and measured rise/fall times remain under 2.5 ns, meeting requirements for non-return-to-zero signaling up to 100 Mbps.

What is the maximum capacitive load for guaranteed timing specs?

The datasheet guarantees tPLH/tPHL ≤ 3.9 ns with CL = 50 pF and RL = 500 Ω. For loads exceeding 50 pF, propagation delay increases linearly (~0.02 ns/pF); operation remains functional up to 100 pF, but timing margin must be re-verified per application.

Is 74LVT08DB,112 qualified for automotive use?

No. It is specified only for industrial temperature range (-40 °C to +85 °C) and lacks AEC-Q100 qualification, automotive-grade screening, or extended lifetime validation. Nexperia explicitly states non-automotive qualification in its legal disclaimers; use in automotive systems voids warranty and requires full customer liability assumption.