Nexperia USA Inc. 74LVC1G74GS,115

Overview

74LVC1G74GS,115 from Nexperia is a single positive-edge-triggered D-type flip-flop with asynchronous set (SD) and reset (RD) inputs, complementary Q and Q̅ outputs, 1.65 V to 5.5 V supply range, -40 °C to +125 °C operation, and IOFF partial power-down support. It functions as a synchronous storage element in clock-domain interfacing, level translation, and control logic within mixed-voltage digital systems.

For engineers reviewing the 74LVC1G74GS,115 datasheet, 74LVC1G74GS,115 pinout, 74LVC1G74GS,115 application, or 74LVC1G74GS,115 equivalent, this device is selected for edge-triggered state retention in space-constrained, wide-VCC industrial controllers, low-power sensor interface sequencers, and 3.3 V/5 V bus translators requiring Schmitt-trigger input tolerance and backflow current protection during power sequencing.

Technical Context

This flip-flop implements a master-slave D-latch architecture synchronized to the LOW-to-HIGH transition of CP. Asynchronous SD and RD override clocked behavior with active-LOW assertion, enabling immediate state initialization independent of CP timing. The IOFF circuit disables outputs when VCC = 0 V, preventing destructive backfeed current in partial-power-down systems.

Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at VCC = 3.3 V), allowing reliable operation with slow-rising signals up to 20 ns/V slew rate (VCC ≥ 2.7 V). Input overvoltage tolerance to 5.5 V enables direct interfacing with 5 V TTL logic while powered from 1.8 V or 3.3 V rails.

Key Specifications

Pinout & Package

XSON8 package (SOT1203): 1.35 mm × 1.0 mm × 0.35 mm body, no leads, 8-terminal surface-mount design optimized for ultra-dense PCBs and automated placement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G74DBVR and 74AUP1G74GM,115, the 74LVC1G74GS,115 uniquely combines asynchronous set/reset, 5.5 V input tolerance, and XSON8 miniaturization - making it the sole choice for space-constrained, mixed-voltage industrial controllers requiring deterministic state initialization.

Availability

74LVC1G74GS,115 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, USB-C power delivery systems, and smart metering platforms requiring stable component supply across extended temperature and mixed-voltage operation.

Supply support for 74LVC1G74GS,115 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 discrete components, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.

The 74LVC logic family delivers robust, low-power, wide-VCC interface solutions for mixed-signal systems - designed specifically for voltage translation, signal conditioning, and control logic in harsh, space-constrained environments.

FAQ

Can 74LVC1G74GS,115 operate reliably at 1.65 V supply while driving a 15 pF load?

Yes. At VCC = 1.65 V, propagation delay is specified at 13.4 ns (max) with 30 pF load per Table 9. With 15 pF, delay reduces further - well within timing budgets for ≤50 MHz clock domains. Output drive remains functional down to 1.65 V, though VOL rises to 0.45 V (max) at 4 mA sink.

Does the IOFF feature activate automatically when VCC drops below a threshold?

Yes. IOFF engages when VCC falls near 0 V (typically <0.2 V), disabling both Q and Q̅ outputs regardless of input states. This occurs passively via internal circuitry - no enable pin or external control is required. Leakage remains ≤±2 μA per datasheet Table 10.

What is the minimum pulse width required on CP for guaranteed operation at 5 V?

At VCC = 4.5 V to 5.5 V, the minimum CP pulse width is 2.0 ns (Table 9). This ensures proper master-slave latching action. For reliable timing closure, maintain >3 ns high/low time to accommodate PCB trace skew and driver rise/fall asymmetry.

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

Schmitt-triggering does not alter tsu/th specifications - those remain referenced to the 0.5×VCC switching threshold (Table 10). However, hysteresis improves noise margin on slow edges, allowing longer effective setup windows in electrically noisy environments without violating timing.