Nexperia USA Inc. 74LVC1G74DC-Q100H

Overview

74LVC1G74DC-Q100 from Nexperia is a single positive-edge-triggered D-type flip-flop with asynchronous set (SD) and reset (RD) inputs, complementary Q/Q̅ outputs, 1.65 V to 5.5 V supply range, -40 °C to +125 °C automotive temperature rating, and IOFF partial power-down capability. It functions as a synchronous storage element in clock-domain crossing, signal synchronization, and control logic circuits within automotive body electronics and ADAS subsystems.

For engineers reviewing the 74LVC1G74DC-Q100 datasheet, 74LVC1G74DC-Q100 pinout, 74LVC1G74DC-Q100 application, or 74LVC1G74DC-Q100 equivalent, this device supports mixed-voltage interfacing (3.3 V/5 V), delivers ±24 mA output drive at 3.0 V, features Schmitt-trigger inputs for noise immunity, and meets AEC-Q100 Grade 1 qualification for under-hood and infotainment applications.

Technical Context

This flip-flop implements edge-triggered synchronous data capture on the LOW-to-HIGH transition of CP, with priority-governed asynchronous assertion of SD and RD (active LOW). Its IOFF circuit disables outputs during power-down to prevent backflow current, enabling safe hot-insertion and multi-rail system operation.

Input tolerance up to 5.5 V allows direct interface with 5 V logic while powered from 1.65–3.3 V rails; Schmitt-trigger inputs accept slow-rising signals without oscillation, and propagation delays as low as 1.0 ns (at VCC = 4.5–5.5 V) support timing-critical sampling in sensor interface chains.

Key Specifications

Pinout & Package

VSSOP8 package (SOT765-1): plastic very thin shrink small outline, 8 leads, 2.3 mm body width, 0.5 mm lead pitch, pin 1 index at lower-left corner below marking "V74".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G74DRYR, the 74LVC1G74DC-Q100 provides guaranteed automotive-grade reliability and extended temperature operation; compared with 74LVC1G74DP-Q100, it delivers 23 % smaller footprint and improved thermal dissipation in space-constrained ADAS modules.

Availability

74LVC1G74DC-Q100 is available at Aetrix Electronics and suitable for automotive body control, ADAS sensor interface, and infotainment power sequencing requiring stable component supply across long product lifecycles.

Supply support for 74LVC1G74DC-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 high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and mobile markets.

The 74LVC1G74-Q100 series belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust, low-power, mixed-voltage digital interfacing in harsh automotive environments.

FAQ

Can 74LVC1G74DC-Q100 operate with VCC = 1.65 V while interfacing with 5 V inputs?

Yes. All inputs tolerate up to 5.5 V regardless of VCC level, enabling direct connection to 5 V microcontrollers or sensors while powered from 1.65 V. This eliminates external level-shifting components and reduces BOM cost in mixed-voltage automotive subsystems.

What is the function of the IOFF feature during system power-down?

When VCC = 0 V, the IOFF circuit places both Q and Q̅ outputs in high-impedance state, preventing reverse current flow from other powered rails through the device. This protects the IC and adjacent circuitry in partial-power-down architectures common in modern vehicle ECUs.

How does the Schmitt-trigger input improve noise immunity in automotive applications?

Schmitt-trigger inputs provide hysteresis (~0.3 V typical), meaning the threshold for detecting a rising edge (VIH) is significantly higher than for a falling edge (VIL). This rejects high-frequency noise and slow-rising interference commonly induced by alternators, ignition systems, or motor drives in vehicles.

Is the 74LVC1G74DC-Q100 pin-compatible with non-automotive versions like 74LVC1G74DC?

No. While the pinout is identical, the -Q100 suffix denotes full AEC-Q100 qualification, including stress testing, lot traceability, and extended temperature validation. Non-Q100 variants lack automotive process controls and are not approved for safety-critical vehicle systems.