Nexperia USA Inc. 74LVC1G126GN,132

Overview

74LVC1G126GN,132 from Nexperia is a single non-inverting 3-state buffer with 5.5 V tolerant inputs, operating from 1.65 V to 5.5 V supply, featuring ±24 mA drive strength and <4 ns propagation delay at 3.3 V, used in level-shifting I²C bus interface circuits.

For engineers reviewing the 74LVC1G126GN,132 datasheet, 74LVC1G126GN,132 pinout, 74LVC1G126GN,132 application, or 74LVC1G126GN,132 equivalent, key selection criteria include input voltage tolerance, output drive capability, propagation delay budget, and 3-state control timing compatibility with microcontroller GPIOs.

Technical Context

This device implements a CMOS-based non-inverting buffer with active-low 3-state enable (OE), supporting bidirectional voltage translation between 1.8 V and 3.3 V domains. Its inputs tolerate up to 5.5 V regardless of supply voltage, enabling safe interfacing with higher-voltage logic without external level shifters.

The output stage uses push-pull configuration with symmetrical rise/fall times (<3.5 ns typical at V_CC = 3.3 V), and the OE pin exhibits 3 ns enable/disable delay, ensuring tight timing alignment in synchronous data gating applications.

Key Specifications

Pinout & Package

Supplied in ultra-small 6-pin XSON package (1.2 × 1.0 × 0.5 mm, 0.5 mm pitch), optimized for space-constrained portable and wearables PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-inverting 3-state buffer applications.

Compared with SN74LVC1G126DBVR and 74AUP1G126GW,125, the 74LVC1G126GN,132 uniquely balances ultra-compact packaging, 5.5 V input tolerance, and high-speed drive-making it optimal for space- and timing-critical mixed-voltage interfaces.

Availability

74LVC1G126GN,132 is available at Aetrix Electronics and suitable for I²C level shifting, GPIO expansion, and sensor hub interfacing requiring stable component supply across consumer electronics, medical wearables, and industrial IoT edge nodes.

Supply support for 74LVC1G126GN,132 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, delivering high-performance, reliable components for automotive, industrial, mobile, and computing markets.

The 74LVC logic family targets low-voltage, high-speed digital interfacing with robust noise immunity and broad supply flexibility for next-generation embedded systems.

FAQ

Is the 74LVC1G126GN,132 pin-compatible with other 6-pin single-buffer logic devices?

No-it uses the XSON6 package with 0.5 mm pitch and specific pin assignment (A-OE-GND-Y-V_CC-NC). SOT-23-6 variants like SN74LVC1G126DBVR share logic function but differ in pinout and thermal pad design, requiring PCB redesign for substitution.

Can this device be used for bidirectional signal translation without additional circuitry?

No-74LVC1G126GN,132 is unidirectional (A → Y). For true bidirectional I²C translation, two units are required-one per direction-or a dedicated bidirectional translator like PCA9306 must be used.

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

At V_CC = 3.3 V, it reliably drives up to 30 pF total load (including trace + input capacitance) while staying within the 3.8 ns max propagation delay spec; exceeding 30 pF increases delay nonlinearly and may violate setup/hold margins.

Does the NC pin require any PCB layout treatment?

Yes-the NC pin (Pin 6) must not be soldered to ground or V_CC. Per Nexperia's layout guidance, it should either remain unconnected or be tied to GND only if adjacent thermal relief patterns are applied to avoid solder wicking during reflow.