NXP Semiconductors 74LVC1G125GV-Q100125

Overview

74LVC1G125GV-Q100 from Nexperia is a single-channel 3-state bus buffer/line driver qualified to AEC-Q100 Grade 1 for automotive use, operating from -40 °C to +125 °C with supply voltage range 1.65 V to 5.5 V, overvoltage-tolerant inputs up to 5.5 V, and ±24 mA output drive at V_CC = 3.0 V. It enables level translation between 3.3 V and 5 V domains in body control modules.

For engineers reviewing the 74LVC1G125GV-Q100 datasheet, 74LVC1G125GV-Q100 pinout, 74LVC1G125GV-Q100 application, or 74LVC1G125GV-Q100 equivalent, key selection criteria include its IOFF partial power-down capability, Schmitt-trigger input tolerance for slow-rising signals, and guaranteed operation across extended automotive temperature range.

Technical Context

This device implements a non-inverting buffer with active-low 3-state output enable (OE), supporting bidirectional signal isolation in shared-bus architectures. Its IOFF circuit actively disables outputs during power-down to prevent backflow current, meeting automotive functional safety requirements for subsystem power sequencing.

Schmitt-trigger inputs provide hysteresis (typically 0.3 V at V_CC = 3.3 V), enabling robust operation with noisy or slow-edge signals common in vehicle harnesses. Input thresholds are JEDEC-compliant across multiple voltage standards (JESD8-7, JESD8-5, JESD8C, JESD36), ensuring interoperability with legacy TTL and modern low-voltage logic.

Key Specifications

Pinout & Package

74LVC1G125GV-Q100 uses the SC-74A (SOT753) 5-pin plastic surface-mounted package: 1.3 mm × 2.9 mm body, 0.65 mm pitch, 0.5 mm height, with gull-wing leads and pin 1 indicator below marking code 'V25'.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bus buffer applications.

Compared with 74LVC1G125GW-Q100 and 74LVC1G125GZ-Q100, the 74LVC1G125GV-Q100 offers balanced thermal performance and manufacturability in SC-74A - delivering lower junction-to-ambient resistance than TSSOP5 and greater mechanical robustness than XSON5 in vibration-prone chassis locations.

Availability

74LVC1G125GV-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, powertrain control systems, and ADAS sensor interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 74LVC1G125GV-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, discrete, and MOSFET solutions, with deep expertise in automotive-grade component qualification and manufacturing.

The 74LVC1G125-Q100 series belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for signal integrity, voltage translation, and power sequencing in harsh-temperature vehicle subsystems.

FAQ

What is the maximum allowable input voltage for 74LVC1G125GV-Q100 when V_CC = 1.8 V?

The 74LVC1G125GV-Q100 supports overvoltage-tolerant inputs up to 5.5 V regardless of V_CC level. When V_CC = 1.8 V, inputs may safely reach 5.5 V without damage or latch-up, enabling direct interfacing with 5 V sensors or legacy modules without external clamping components - a key advantage confirmed in Table 5 (VI parameter) and Section 2 features.

Does 74LVC1G125GV-Q100 support partial power-down operation, and how is it implemented?

Yes, 74LVC1G125GV-Q100 implements IOFF partial power-down: when V_CC = 0 V, the IOFF circuitry disables both input and output structures, limiting leakage current to ±2 μA (Table 7, IOFF). This prevents destructive backflow current from live buses into unpowered sections - a requirement explicitly verified in Section 1 General Description and Table 7 Static Characteristics.

What is the propagation delay of 74LVC1G125GV-Q100 at V_CC = 3.3 V and -40 °C to +125 °C?

At V_CC = 3.3 V and full automotive temperature range (-40 °C to +125 °C), the propagation delay (A to Y) is specified as 0.5 ns (min) to 6 ns (max), per Table 8 Dynamic Characteristics. This value is measured under loaded conditions (30–50 pF, 500 Ω), ensuring timing predictability in real-world automotive signal paths.

How does the Schmitt-trigger input benefit 74LVC1G125GV-Q100 in automotive applications?

The Schmitt-trigger input provides hysteresis (≥0.3 V at V_CC = 3.3 V), making 74LVC1G125GV-Q100 tolerant of slow-rising/falling signals and electromagnetic interference common in vehicle wiring harnesses. This eliminates need for external RC filtering on inputs from potentiometers, thermistors, or long-distance LIN nodes - a feature directly stated in Section 1 General Description.

Is 74LVC1G125GV-Q100 pin-compatible with other members of the 74LVC1G125-Q100 family?

74LVC1G125GV-Q100 (SC-74A/SOT753) shares identical pin numbering and function mapping with 74LVC1G125GW-Q100 (TSSOP5) and 74LVC1G125GZ-Q100 (XSON5), as confirmed in Section 6.2 Pin description and Figures 1–3. However, physical package dimensions and thermal characteristics differ - requiring layout adaptation despite functional pin equivalence.