Nexperia USA Inc. 74LVC74ABQ-Q100X

Overview

74LVC74ABQ-Q100 from Nexperia is a dual positive-edge-triggered D-type flip-flop with asynchronous active-LOW set and reset inputs, 14-terminal DHVQFN package, -40 °C to +125 °C automotive temperature range, and 1.2 V to 3.6 V supply voltage. It transfers data on LOW-to-HIGH clock transitions, features Schmitt-trigger inputs for noise immunity, and is AEC-Q100 Grade 1 qualified for engine control and ADAS timing circuits.

For engineers reviewing the 74LVC74ABQ-Q100 datasheet, 74LVC74ABQ-Q100 pinout, 74LVC74ABQ-Q100 application, or 74LVC74ABQ-Q100 equivalent, this page delivers verified functional behavior, exact pin roles, automotive-grade thermal and timing specs, and validated alternatives for dual DFF-based synchronization, metastability mitigation, and clock-domain crossing in safety-critical ECUs.

Technical Context

The device implements two independent edge-triggered D flip-flops sharing no internal logic-each with dedicated D, CP, SD, RD, Q, and Q̅ terminals. Asynchronous set/reset override clock action and operate at any valid VCC level within 1.2 V–3.6 V, enabling mixed-voltage system interfacing.

Propagation delays (tpd) range from 1.0 ns to 11.9 ns depending on VCC and temperature; maximum operating frequency reaches 150 MHz at VCC = 3.0 V–3.6 V and +125 °C. Output skew between same-package outputs is guaranteed ≤1.5 ns, critical for tightly synchronized dual-channel sampling.

Key Specifications

Pinout & Package

DHVQFN14 package (SOT762-1), 2.5 mm × 3.0 mm × 0.85 mm body, side-wettable flanks for AOI-compatible solder joint inspection, exposed thermal pad (non-electrical, optional GND connection).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC74APWRE4 and 74LVC74AD-Q100, the 74LVC74ABQ-Q100 offers superior thermal dissipation (9.6 mW/K derating above 98 °C), AOI-enabled manufacturability, and smallest PCB footprint - making it optimal for space-constrained, thermally demanding automotive modules.

Availability

74LVC74ABQ-Q100 is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, automotive gateways, and infotainment systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC74ABQ-Q100 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 essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions optimized for automotive, industrial, and mobile applications.

The 74LVC74A-Q100 series belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust, low-power, mixed-voltage digital interfacing in safety-critical vehicle subsystems.

FAQ

What is the minimum recommended VCC for guaranteed operation at +125 °C?

The datasheet specifies a minimum VCC of 1.2 V across the full -40 °C to +125 °C range. However, for guaranteed timing performance (e.g., fmax ≥120 MHz) at +125 °C, VCC must be ≥2.7 V per Table 6. Below 2.7 V, maximum frequency degrades to 100 MHz at 2.3–2.7 V and 80 MHz at 1.65–1.95 V.

Can the exposed thermal pad on the DHVQFN package be connected to ground?

Yes - the exposed pad (pin 1 index area) has no electrical function but may be soldered to a floating copper pour or connected to GND for improved thermal conduction. If connected to GND, ensure the PCB land remains electrically isolated from VCC and signal traces; no internal connection exists between the pad and any die bond wire.

How does the Schmitt-trigger input affect setup/hold timing requirements?

Schmitt-trigger inputs do not alter tsu/th values - those are defined relative to the 50% VCC threshold crossing point (VM). The hysteresis only improves noise margin on slow or noisy edges; timing parameters remain referenced to the same VM point used in all LVC-series characterization, ensuring compatibility with standard timing analysis tools.

Is there any functional difference between 74LVC74ABQ-Q100 and non-Q100 versions like 74LVC74ABQ?

Electrically and functionally identical - the only differences are qualification testing (AEC-Q100 stress screens), traceability documentation, and lot-level automotive-grade screening. The Q100 version undergoes additional temperature cycling, HTOL, and ESD validation; non-Q100 parts lack these certifications and are not approved for automotive production use.