NXP Semiconductors 74LVC1G125GV/DG125

Overview

74LVC1G125GV/DG125 from Nexperia is a single 3-state bus buffer/line driver with Schmitt-trigger inputs, designed for level translation between 3.3 V and 5 V logic domains. It features ±24 mA output drive at 3.0 V, IOFF partial power-down protection, and operates across -40 °C to +125 °C. It is used in I/O expansion, memory address buffering, and mixed-voltage interface circuits.

For engineers reviewing the 74LVC1G125GV/DG125 datasheet, 74LVC1G125GV/DG125 pinout, 74LVC1G125GV/DG125 application, or 74LVC1G125GV/DG125 equivalent, key selection criteria include its 1.65 V–5.5 V supply range, overvoltage-tolerant 5.5 V inputs, 3-state enable timing (tdis ≤ 5.5 ns at 5 V), low ICC (≤ 4 μA), and SC-74A (SOT753) package compatibility with space-constrained PCB layouts.

Technical Context

This device implements a non-inverting buffer with active-low 3-state output control (OE). Its Schmitt-trigger inputs tolerate slow-rising signals and improve noise immunity in noisy environments. The IOFF circuit ensures high-impedance outputs during power-down, preventing backflow current when VCC = 0 V.

It complies with JEDEC standards JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V), and JESD36 (4.5–5.5 V), enabling interoperability across legacy and modern logic families. Propagation delay ranges from 0.5 ns (min) to 6 ns (max) at 3.0–3.6 V, supporting high-speed digital interfacing without external timing compensation.

Key Specifications

Pinout & Package

74LVC1G125GV/DG125 uses the SC-74A (SOT753) surface-mount package: plastic, 5-lead, body size 3.1 mm × 1.7 mm × 1.1 mm, with gull-wing leads and pin 1 indicator below marking code "V25".

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the 74LVC1G125GV/DG125 uniquely balances 5.5 V input tolerance, IOFF protection, and wide VCC range - making it the only choice for mixed-voltage industrial and automotive modules requiring robust hot-swap capability.

Availability

74LVC1G125GV/DG125 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and portable medical device I/O expansion requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC1G125GV/DG125 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, reliable, and energy-efficient components for automotive, industrial, and consumer electronics markets.

The 74LVC1G125GV/DG125 belongs to Nexperia's LVC logic family, engineered for low-voltage operation with robust mixed-signal interfacing - specifically targeting space-constrained, thermally demanding applications where voltage translation and power sequencing integrity are critical.

FAQ

What is the maximum input voltage the 74LVC1G125GV/DG125 can tolerate?

The 74LVC1G125GV/DG125 accepts input voltages up to 5.5 V regardless of VCC level, enabling safe interfacing with 5 V TTL or CMOS outputs even when powered from 1.65 V or 3.3 V. This overvoltage tolerance is guaranteed per datasheet Table 5 and eliminates need for external clamping diodes in mixed-voltage designs.

Does the 74LVC1G125GV/DG125 support partial power-down operation?

Yes, the 74LVC1G125GV/DG125 integrates IOFF circuitry that disables outputs and limits leakage to ±2 μA when VCC = 0 V. This feature is explicitly verified in Section 1 and Table 7 of the datasheet, allowing safe operation during hot-swap or subsystem power cycling without back-current damage.

What is the propagation delay of the 74LVC1G125GV/DG125 at 3.3 V supply?

At VCC = 3.3 V and Tamb = 25 °C, the typical propagation delay (tpd) of the 74LVC1G125GV/DG125 is 2.1 ns, with a maximum of 4.5 ns over -40 °C to +85 °C and 6 ns over -40 °C to +125 °C (Table 8). These values apply to both A→Y and OE→Y transitions under standard load conditions.

Which package does the 74LVC1G125GV/DG125 use, and what are its dimensions?

The 74LVC1G125GV/DG125 uses the SC-74A (SOT753) package: 5-lead gull-wing, body size 3.1 mm × 1.7 mm × 1.1 mm, lead pitch 0.95 mm, and marking code "V25". Pin 1 is located at the lower-left corner below the marking, per Figure 8 and Table 2 of the Nexperia datasheet Rev. 17.1.

Can the 74LVC1G125GV/DG125 drive a 50 pF load at 5 V supply?

Yes, the 74LVC1G125GV/DG125 delivers ±32 mA output drive at VCC = 4.5–5.5 V (Table 7), fully capable of driving 50 pF loads with tpd ≤ 5.5 ns and VOL ≤ 0.55 V. Test data in Table 10 confirms operation under 50 pF/500 Ω conditions at 5 V, meeting high-speed digital interface requirements.