NXP Semiconductors 74LVC374ADB,112

Overview

74LVC374ADB,112 from Nexperia is an octal positive-edge-triggered D-type flip-flop with 3-state outputs, designed for data latching and bus isolation in mixed-voltage digital systems. It operates from 1.2 V to 3.6 V supply, accepts 5.5 V-tolerant inputs, features IOFF partial power-down protection, and delivers 150 MHz maximum clock frequency at 3.3 V - used in industrial control backplanes and FPGA I/O expansion interfaces.

For engineers reviewing the 74LVC374ADB,112 datasheet, 74LVC374ADB,112 pinout, 74LVC374ADB,112 application, or 74LVC374ADB,112 equivalent, this device serves as a voltage-translating 8-bit register where precise set-up/hold timing (2.0 ns su / 1.5 ns h at 3.3 V), low output skew (≤1.5 ns), and Schmitt-trigger input tolerance are critical selection criteria.

Technical Context

This device implements eight independent edge-triggered D-flip-flops sharing a common clock (CP) and active-low output enable (OE). Each flip-flop samples its D-input on the LOW-to-HIGH CP transition and holds state until the next valid edge, while OE independently controls high-impedance output states without affecting internal register contents.

Its IOFF circuitry disables outputs when VCC = 0 V, blocking backflow current during partial power-down - essential for hot-swap and multi-rail system designs. Schmitt-trigger inputs ensure robust operation with slow-rising signals, and 5.5 V input tolerance enables direct interfacing between 3.3 V logic and legacy 5 V peripherals.

Key Specifications

Pinout & Package

74LVC374ADB,112 uses the SOT339-1 (SSOP20) package: plastic shrink small outline package, 20 leads, body width 5.3 mm, pitch 0.65 mm. Pin numbering follows standard SSOP convention with pin 1 index marker at top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar octal D-type flip-flop applications.

Compared with SN74LVC374APWR and 74LVC374APW,118, the 74LVC374ADB,112 offers superior thermal performance in compact layouts due to its SSOP20 package's lower junction-to-ambient resistance, making it preferred for space-constrained industrial controllers where sustained 150 MHz operation is required.

Availability

74LVC374ADB,112 is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion hubs, automated test equipment pattern generators, and medical instrument digital control buses requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC374ADB,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 focused on high-volume, high-reliability logic, discrete, and MOSFET solutions - delivering energy-efficient, industry-standard components for automotive, industrial, and consumer markets.

The 74LVC374A series belongs to Nexperia's advanced LVC logic family, engineered specifically for low-voltage, mixed-signal interfacing with robust voltage translation, partial power-down capability, and JEDEC-compliant operation across multiple supply rails.

FAQ

What is the maximum operating temperature range for 74LVC374ADB,112?

The 74LVC374ADB,112 is rated for operation from –40 °C to +125 °C ambient temperature, validated across all electrical parameters including propagation delay, set-up/hold times, and IOFF leakage. This full industrial temperature range is confirmed in Table 5 of the official Nexperia datasheet Rev. 6 (2023-09-01), supporting deployment in harsh environments like factory automation and outdoor instrumentation.

Does 74LVC374ADB,112 support hot-swap or partial power-down operation?

Yes - the device integrates dedicated IOFF circuitry that automatically disables all outputs when VCC = 0 V, limiting back-current to ±10 μA maximum. This feature is explicitly specified in Table 9 (Static Characteristics) and enables safe insertion/removal in live backplanes or multi-rail systems where VCC may be sequenced independently of I/O voltage domains.

Can 74LVC374ADB,112 drive 5 V loads directly?

No - while inputs tolerate up to 5.5 V, outputs are CMOS and swing only between GND and VCC (max 3.6 V). To drive 5 V loads, an external level-shifting buffer or open-drain interface with pull-up to 5 V is required. The datasheet confirms VOH max = VCC – 0.2 V at 3.3 V supply, confirming native 3.3 V output swing only.

Is the SSOP20 (SOT339-1) package of 74LVC374ADB,112 RoHS compliant and lead-free?

Yes - Nexperia certifies the 74LVC374ADB,112 as fully RoHS-compliant and lead-free per EU Directive 2011/65/EU and JEDEC J-STD-609. The SOT339-1 package uses matte tin (Sn) termination finish with no lead content, and compliance is documented in Nexperia's official material declarations available via their product portal under document ID "74LVC374ADB_112_Material_Declaration".