Nexperia USA Inc. 74LVC1G126GV,125

Overview

74LVC1G126GV,125 from Nexperia is a single 3-state bus buffer/line driver with Schmitt-trigger inputs, IOFF partial power-down protection, and 1.65 V to 5.5 V supply operation. It enables level translation between 3.3 V and 5 V logic domains, delivers ±24 mA output drive at 3.0 V, and operates across –40 °C to +125 °C for industrial interface applications.

For engineers reviewing the 74LVC1G126GV,125 datasheet, 74LVC1G126GV,125 pinout, 74LVC1G126GV,125 application, or 74LVC1G126GV,125 equivalent, this device serves as a compact, low-power, voltage-tolerant buffer in mixed-voltage I/O expansion, sensor interface conditioning, and microcontroller peripheral isolation circuits where space-constrained SC-74A packaging and robust IOFF behavior are required.

Technical Context

This device implements a non-inverting buffer with active-high 3-state control (OE), enabling bidirectional bus management via external enable signaling. Its Schmitt-trigger inputs accept slow-rising signals and reject noise up to ±0.3 V hysteresis depending on VCC, while IOFF circuitry disables output leakage when VCC = 0 V.

It complies with JEDEC standards JESD8-7, JESD8-5, JESD8C, and JESD36 across its full 1.65–5.5 V operating range and supports TTL-level input compatibility. Propagation delay ranges from 0.5 ns (VCC = 5.5 V) to 10.5 ns (VCC = 1.65 V, –40 °C to +85 °C), with disable time as low as 4.2 ns under same conditions.

Key Specifications

Pinout & Package

74LVC1G126GV,125 uses the SC-74A (SOT753) surface-mount package: plastic, 5-lead, body size 3.0 mm × 1.3 mm × 1.1 mm, with gull-wing leads and pin 1 indicator below marking "V26".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G126DBVR and 74AUP1G126GW,125, the 74LVC1G126GV,125 uniquely balances wide-voltage operation (1.65–5.5 V), industrial temperature rating, and ultra-low IOFF leakage - making it the only choice for hot-swappable 5 V peripheral modules in harsh environments.

Availability

74LVC1G126GV,125 is available at Aetrix Electronics and suitable for industrial sensor interface, microcontroller I/O expansion, and automotive body control module applications requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC1G126GV,125 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, analog, and discrete components, serving automotive, industrial, and consumer markets with scalable manufacturing and rigorous qualification.

The 74LVC1G126 belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, designed specifically for robust, low-power, mixed-voltage interface bridging in space-constrained embedded systems demanding industrial-grade reliability.

FAQ

Does 74LVC1G126GV,125 support true bidirectional data flow?

No. It is a unidirectional non-inverting buffer with active-high 3-state output control (OE). Data flows only from input A to output Y. Bidirectional operation requires external direction control logic or a dedicated transceiver like the 74LVC245.

Can 74LVC1G126GV,125 be used with a 1.2 V supply?

No. The absolute minimum recommended supply voltage is 1.65 V per Table 6. At 1.2 V, VIH/VIL thresholds become undefined, output drive collapses below specification, and IOFF protection may not activate reliably - risking latch-up or excessive leakage.

What is the maximum capacitive load this buffer can drive reliably?

Driving 50 pF loads is validated per Table 10 test conditions (tPLH/tPHL measured with CL = 50 pF). For reliable signal integrity beyond 50 pF, add series termination or reduce edge rate using input RC filtering - propagation delay increases linearly with load capacitance.

Is the SC-74A package (SOT753) compatible with standard SOT-23-5 reflow profiles?

Yes. SOT753 shares identical thermal mass and lead geometry with JEDEC-standard SOT-23-5. It is compatible with IPC/JEDEC J-STD-020D reflow profiles for SnPb and Pb-free solder, including peak temperatures up to 260 °C for ≤30 seconds.