Nexperia USA Inc. 74LVC1G126GW,165

Overview

74LVC1G126GW,165 from Nexperia is a single 3-state bus buffer/line driver with Schmitt-trigger inputs, operating from 1.65 V to 5.5 V supply, supporting mixed-voltage translation between 3.3 V and 5 V systems, delivering ±24 mA output drive at VCC = 3.0 V, and rated for -40 °C to +125 °C ambient operation.

For engineers reviewing the 74LVC1G126GW,165 datasheet, 74LVC1G126GW,165 pinout, 74LVC1G126GW,165 application, or 74LVC1G126GW,165 equivalent, this device serves as a voltage-tolerant, low-power logic interface in space-constrained industrial control I/O expansion, automotive body electronics signal conditioning, and portable embedded system level-shifting circuits.

Technical Context

This device implements a non-inverting buffer with active-high 3-state output enable (OE), enabling bidirectional bus control via external gating. Its Schmitt-trigger inputs tolerate slow-rising signals (Δt/ΔV up to 20 ns/V at VCC = 1.65 V) and reject noise exceeding typical CMOS thresholds.

The IOFF circuit ensures safe partial power-down operation: when VCC = 0 V, output leakage remains ≤±2 μA and backflow current is blocked, preserving integrity in hot-swap or power-gated subsystems.

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, 1.3 mm height - optimized for automated placement and reflow in high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G126DBVR and 74LVC1G125GW,165, the 74LVC1G126GW,165 offers superior AOI compatibility via SWF-capable TSSOP5, lower quiescent current, and guaranteed -40 °C to +125 °C operation without derating - making it optimal for high-reliability, volume-manufactured edge devices.

Availability

74LVC1G126GW,165 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and portable medical sensor hubs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC1G126GW,165 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 semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets with leadership in logic, MOSFETs, and ESD protection.

The 74LVC1G126 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interfacing, low-power operation, and extended temperature reliability in space- and power-constrained embedded systems.

FAQ

What is the maximum input voltage the 74LVC1G126GW,165 can tolerate when VCC = 1.8 V?

The device accepts inputs up to 5.5 V regardless of VCC level, as confirmed in Table 5 (Limiting Values) and Table 6 (Recommended Operating Conditions). This overvoltage tolerance enables direct connection to 5 V sensors or legacy peripherals while powered from 1.8 V, eliminating external clamping diodes or level shifters in mixed-supply designs.

Does the 74LVC1G126GW,165 support hot-swap or partial power-down operation?

Yes - its IOFF circuitry actively disables the output and limits leakage to ≤±2 μA when VCC = 0 V, preventing damaging backflow current during hot-insertion or staged power sequencing. This behavior is fully characterized in Table 7 (Static Characteristics) under IOFF test conditions and applies across the full -40 °C to +125 °C temperature range.

How does the Schmitt-trigger input improve noise immunity compared to standard CMOS inputs?

Schmitt-trigger inputs provide hysteresis (typically ≥0.3 V at VCC = 3.3 V), meaning the rising and falling input thresholds differ. This prevents multiple output transitions caused by slow or noisy edges - a key advantage for interfacing with mechanical switches, rotary encoders, or long traces in electrically noisy industrial environments, as explicitly stated in Section 1 and Table 7.

Is the TSSOP5 (SOT353-1) package of the 74LVC1G126GW,165 compatible with standard reflow profiles?

Yes - the SOT353-1 package is qualified for standard lead-free reflow per J-STD-020, with peak temperature up to 260 °C. Its 1.25 mm body width and 0.65 mm pitch are supported by mainstream pick-and-place and reflow equipment; the package outline drawing (Fig. 7) and thermal derating data (Table 5 footnote [2]) confirm manufacturability in high-volume SMT lines.