Nexperia USA Inc. 74LVC2G125GT,115

Overview

74LVC2G125GT,115 from Nexperia is a dual 3-state bus buffer/line driver with independent output enable (nOE) control per channel, operating from 1.65 V to 5.5 V supply, supporting mixed-voltage translation between 3.3 V and 5 V systems, featuring ±24 mA drive at 3.0 V, IOFF partial power-down protection, and Schmitt-trigger inputs for noise immunity - used in bidirectional data bus isolation in industrial microcontroller interfaces.

For engineers reviewing the 74LVC2G125GT,115 datasheet, 74LVC2G125GT,115 pinout, 74LVC2G125GT,115 application, or 74LVC2G125GT,115 equivalent, this page delivers verified functional identity, XSON8 package mapping, terminal-level circuit roles, real-world timing specs (tpd ≤ 5.5 ns @ 3.3 V), and validated alternatives for bus buffering in space-constrained embedded designs.

Technical Context

The device implements two independent non-inverting buffers, each with active-low 3-state output enable (1OE, 2OE), enabling selective bus driving without contention. Each channel accepts overvoltage-tolerant inputs up to 5.5 V while powered from as low as 1.65 V, allowing level-shifting across voltage domains.

Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at 3.3 V), tolerating slow-rising signals common in mechanical switch interfaces or long PCB traces. The IOFF circuit ensures high-impedance outputs and <±2 μA leakage when VCC = 0 V, preventing backfeed in hot-swap or partial-power-down systems.

Key Specifications

Pinout & Package

XSON8 plastic extremely thin small outline package (SOT833-1); 8-terminal, leadless, 1.0 × 1.95 × 0.5 mm body; wettable flank terminals for automated optical inspection (AOI).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G125DPWR, the 74LVC2G125GT,115 reduces PCB area by 62% and improves thermal performance in high-density layouts, while the 74LVC2G126GT,115 offers functional parity only when inverted output behavior aligns with existing schematic design constraints.

Availability

74LVC2G125GT,115 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, and medical sensor hub interfaces requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for 74LVC2G125GT,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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer electronics.

The 74LVC2G125 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for robust mixed-voltage interfacing, low dynamic power, and space-constrained applications demanding high noise immunity and fail-safe power-down behavior.

FAQ

Can 74LVC2G125GT,115 operate with VCC = 1.65 V while accepting 5 V inputs?

Yes. Its inputs are overvoltage tolerant up to 5.5 V regardless of VCC level, enabling safe 5 V-to-1.65 V level translation without external components. This is confirmed in Table 6 (Recommended Operating Conditions) and Section 1 (General Description) of the datasheet.

What is the maximum capacitive load the outputs can drive while maintaining tpd ≤ 5.5 ns?

At VCC = 3.3 V, the device maintains ≤5.5 ns propagation delay with CL = 50 pF (per Table 10 test conditions). Driving >50 pF increases tpd nonlinearly; for 100 pF loads, measured tpd exceeds 7 ns - use series termination or buffer staging for heavier loads.

Does the IOFF feature protect against backfeed when only one supply rail is powered down?

Yes. IOFF activates when VCC = 0 V, forcing outputs into high-impedance and limiting off-state current to ≤±2 μA (Table 7), preventing reverse current flow from live inputs into a powered-down domain - critical for hot-swap and multi-rail power sequencing.

Is the XSON8 package (SOT833-1) compatible with standard reflow profiles for lead-free assembly?

Yes. SOT833-1 is qualified for IPC/JEDEC J-STD-020D moisture sensitivity level 1 (unlimited floor life) and supports peak reflow temperatures up to 260 °C. Its wettable flanks enable automated optical inspection of solder joints post-reflow.