Nexperia USA Inc. 74AUP2G240DC,125

Overview

74AUP2G240DC,125 from Nexperia is a dual inverting buffer/line driver with 3-state outputs, designed for low-voltage logic interfacing across 0.8 V to 3.6 V supply rails. It features Schmitt-trigger inputs for noise immunity, IOFF circuitry for partial power-down protection, and input-disable functionality when nOE is HIGH. Used in portable sensor interfaces and battery-powered I²C bus extenders where ultra-low static current (≤1.4 μA) and rail-to-rail input tolerance (up to 3.6 V) are critical.

For engineers reviewing the 74AUP2G240DC,125 datasheet, 74AUP2G240DC,125 pinout, 74AUP2G240DC,125 application, or 74AUP2G240DC,125 equivalent, key selection criteria include its 0.8–3.6 V operating range, 3-state enable timing (tdis ≤7.1 ns at VCC=3.3 V), Schmitt-trigger input hysteresis, IOFF leakage (±0.75 μA), and VSSOP8 package compatibility with high-density PCB layouts.

Technical Context

This device implements two independent inverting buffers, each with active-low 3-state output control via dedicated nOE pins. Each channel operates with true Schmitt-trigger inputs-ensuring robust operation with slow-rising signals and maintaining noise margins across the full 0.8 V–3.6 V VCC range.

The IOFF circuit actively disables outputs during power-down, blocking backflow current even when input/output voltages exceed VCC = 0 V. Input-disable behavior (floating-input tolerance) activates when nOE is HIGH, reducing dynamic current by disabling internal input stage biasing.

Key Specifications

Pinout & Package

VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8-lead, 2.3 mm body width; 0.5 mm pitch; moisture sensitivity level 1 (MSL1).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual inverting buffer/line driver applications.

Compared with SN74AUP2G240DSFR and 74LVC2G240GW,125, the 74AUP2G240DC,125 uniquely balances ultra-low static power (1.4 μA), Schmitt-trigger robustness, and VSSOP8 thermal performance - making it optimal for battery-critical, noise-prone, and thermally constrained embedded designs.

Availability

74AUP2G240DC,125 is available at Aetrix Electronics and suitable for industrial sensor hubs, portable medical monitors, automotive body control modules, and IoT edge gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AUP2G240DC,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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in consumer, industrial, and automotive applications.

The 74AUP (Advanced Ultra-low Power) logic family targets battery-powered and energy-sensitive systems, emphasizing sub-1 μA static current, wide VCC scalability, and robust signal integrity - directly addressing design challenges in wearable electronics and smart sensors.

FAQ

Can 74AUP2G240DC,125 operate with VCC = 0.8 V while accepting 3.3 V inputs?

Yes. Its inputs tolerate up to 3.6 V regardless of VCC level, enabling safe interfacing between higher-voltage peripherals and ultra-low-voltage controllers. This is confirmed in Section 2 ("Inputs accept voltages up to 3.6 V") and Table 6 (VI input voltage range: 0–3.6 V). No external clamping is required.

What is the maximum capacitive load this device can drive while maintaining specified propagation delay?

The datasheet specifies tpd up to CL = 30 pF (e.g., 8.5 ns max at VCC = 3.3 V). Performance degrades linearly beyond that - at CL = 50 pF, tpd increases ~30% versus CL = 30 pF. For reliable timing closure in high-speed designs, keep total load (including trace + input capacitance) ≤30 pF per output.

Does the input-disable feature eliminate all input leakage when nOE is HIGH?

Yes. When nOE is HIGH, internal input stage biasing is disabled, reducing II input leakage to ±0.75 μA (max) across −40 °C to +125 °C - effectively eliminating floating-input current paths. This is distinct from standard CMOS inputs, which retain leakage even when unused.

How does the IOFF circuit behave during power sequencing where VCC ramps after I/O signals are applied?

IOFF activates when VCC = 0 V, blocking current flow even if inputs/outputs are biased to 3.6 V. As VCC rises, IOFF remains active until VCC exceeds ~0.2 V, then transitions to normal operation. This prevents latch-up or damage during asymmetric power-up - verified per JESD78 Class II latch-up testing (>100 mA).