Nexperia USA Inc. 74LVC1G126GW-Q100H

Overview

74LVC1G126GW-Q100 from Nexperia is a single-channel 3-state bus buffer/line driver qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C), supporting 1.65 V to 5.5 V supply, overvoltage-tolerant 5.5 V inputs, and ±24 mA output drive at 3.0 V - used in automotive infotainment data routing where level translation between 3.3 V microcontrollers and 5 V peripherals is required.

For engineers reviewing the 74LVC1G126GW-Q100 datasheet, 74LVC1G126GW-Q100 pinout, 74LVC1G126GW-Q100 application, or 74LVC1G126GW-Q100 equivalent, key selection criteria include IOFF-enabled partial power-down capability, Schmitt-trigger input noise immunity, TSSOP5 package compatibility with automated optical inspection, and guaranteed 3-state timing across automotive temperature range.

Technical Context

This device implements a non-inverting buffer with active-high 3-state control (OE), enabling bidirectional bus isolation in mixed-voltage automotive subsystems. Its Schmitt-trigger inputs accept slow-rising signals (Δt/ΔV down to 20 ns/V at 1.65 V), while IOFF circuitry disables outputs during VCC ramp-down to prevent backfeed current.

The logic function table confirms deterministic behavior: OE = HIGH enables transparent A→Y path; OE = LOW forces Y into high-impedance state regardless of A. Propagation delay ranges from 0.5 ns (min) to 6 ns (max) at 3.0–3.6 V, with enable/disable times tightly specified for synchronous bus arbitration.

Key Specifications

Pinout & Package

TSSOP5 (SOT353-1) package: plastic thin shrink small outline, 5-lead, 1.25 mm body width, 0.65 mm lead pitch, designed for high-density automotive PCB layouts and AOI-compatible solder joint inspection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G126QDRYRQ1, the 74LVC1G126GW-Q100 delivers double the output current for driving heavier capacitive loads, while versus 74LVC1G125GW-Q100 it provides direct OE polarity alignment with standard push-pull control signals - both distinctions impact signal integrity and layout reuse in automotive production designs.

Availability

74LVC1G126GW-Q100 is available at Aetrix Electronics and suitable for automotive infotainment display interfaces, body control module bus isolation, ADAS camera data multiplexing, and electric power steering sensor hubs requiring stable component supply across extended temperature and long product lifecycles.

Supply support for 74LVC1G126GW-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, discrete, and MOSFET solutions optimized for automotive, industrial, and mobile applications.

The 74LVC1G126-Q100 belongs to Nexperia's automotive-qualified LVC logic family, engineered specifically for robust signal integrity and fail-safe operation in harsh-temperature vehicle subsystems including powertrain, chassis, and ADAS domains.

FAQ

Does the 74LVC1G126GW-Q100 support hot insertion in powered systems?

Yes - its IOFF circuitry actively disables the output and limits backflow current to ±2 μA when VCC = 0 V, enabling safe hot-plug operation in modular automotive ECUs. This behavior is verified across −40 °C to +125 °C and does not require external biasing or control sequencing.

What is the maximum capacitive load this buffer can drive while maintaining timing specs?

At VCC = 3.3 V and Tamb = 25 °C, the device maintains tpd ≤ 4.5 ns and ten/tdis ≤ 7 ns up to 50 pF load capacitance, as validated in the official test circuit (Fig. 6) with RL = 500 Ω. For 30 pF loads, propagation delay improves to ≤ 2.0 ns typical.

Can this buffer translate between 1.8 V and 5 V logic without external components?

Yes - inputs tolerate up to 5.5 V regardless of VCC setting, and the output swings rail-to-rail (VOH ≥ VCC − 0.55 V, VOL ≤ 0.55 V at 24 mA). When VCC = 1.8 V, it accepts 5 V inputs and outputs 0/1.8 V levels compatible with downstream 1.8 V receivers.

Is the TSSOP5 package (SOT353-1) compatible with standard reflow profiles for lead-free assembly?

Yes - the SOT353-1 package is qualified for JEDEC J-STD-020D-compliant lead-free reflow, with peak temperature up to 260 °C for ≤ 30 seconds. Its 1.25 mm body width and 0.65 mm pitch meet IPC-A-610 Class 3 acceptance criteria for automotive production.