Nexperia USA Inc. 74AUP1Z125GS,132

Overview

74AUP1Z125GS,132 from Nexperia is a low-power crystal oscillator driver IC with integrated enable control, internal bias and pull-up resistors, and 3-state output. It operates across 0.8 V to 3.6 V supply, features Schmitt-trigger inputs for noise immunity, and delivers stable X1→X2/Y signal inversion with propagation delays as low as 0.3 ns (VCC = 3.6 V, CL = 5 pF). It enables ultra-low-power clock generation in space-constrained portable and battery-powered timing circuits.

For engineers reviewing the 74AUP1Z125GS,132 datasheet, 74AUP1Z125GS,132 pinout, 74AUP1Z125GS,132 application, or 74AUP1Z125GS,132 equivalent, key selection criteria include its wide VCC range (0.8–3.6 V), guaranteed 3-state disable behavior with EN-driven power-down mode, internal RPU/Rbias resistor values (15 µA pull-up current, 1.08–3.11 MΩ bias resistance), and validated operation from –40 °C to +125 °C.

Technical Context

The 74AUP1Z125GS,132 implements a CMOS-based Pierce oscillator driver architecture with dual outputs: buffered Y (inverting, 3-state) and unbuffered X2 (inverting, always active). Its internal Rbias network sets mid-supply bias on the inverter input, enabling linear-region operation critical for reliable crystal startup and sustained oscillation.

Schmitt-trigger action on both EN and X1 inputs ensures robust edge detection across full VCC (0.8–3.6 V), while IOFF circuitry isolates Y during power-down. The device's dynamic performance scales with supply voltage and load capacitance-e.g., tpd(X1→Y) ranges from 1.4 ns (3.6 V, 5 pF) to 32.6 ns (0.8 V, 30 pF)-enabling precise timing margin analysis in low-voltage embedded systems.

Key Specifications

Pinout & Package

XSON6 package (SOT1202): plastic extremely thin small outline, no leads, 6 terminals, body size 1.0 × 1.0 × 0.35 mm - optimized for high-density PCB layouts and automated optical inspection.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar crystal driver applications.

Compared with 74AUP1Z125GS,132, the 74AUP1Z04GW,115 lacks integrated enable and biasing-increasing component count and design complexity-while the 74LVC1GX04GV,125 sacrifices low-voltage operation and power-down isolation, making it unsuitable for battery-critical or automotive-grade timing.

Availability

74AUP1Z125GS,132 is available at Aetrix Electronics and suitable for wearable electronics, automotive body controllers, and industrial PLC modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74AUP1Z125GS,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 technologies, delivering high-performance logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.

The 74AUP1Z125 belongs to Nexperia's Advanced Ultra-low Power (AUP) logic family, engineered specifically for battery-operated and thermally constrained timing applications where minimal ICC, wide VCC, and integrated oscillator support are critical.

FAQ

What is the function of the internal Rbias resistor?

The internal Rbias resistor (1.08–3.11 MΩ) provides negative feedback between X2 and X1 to bias the inverter in its linear region, ensuring reliable crystal startup and stable oscillation across temperature and supply voltage. It eliminates the need for an external feedback resistor in Pierce oscillator configurations.

Can the 74AUP1Z125GS,132 drive crystals directly without external capacitors?

No. While the device integrates Rbias and RPU, external load capacitors C1 and C2 are still required to set the crystal's load capacitance (CL) per manufacturer specification. Typical values range from 6 pF to 22 pF depending on crystal CL rating and board stray capacitance (Cs = 1.5 pF).

How does the 3-state output (Y) behave when EN is HIGH?

When EN is driven HIGH, the Y output enters a true high-impedance OFF-state (IOZ ≤ ±0.1 µA), electrically isolating downstream circuitry. Simultaneously, X1 is pulled HIGH via internal RPU and X2 is driven LOW, placing the crystal in a defined, non-oscillating bias condition.

Is the 74AUP1Z125GS,132 compatible with 32.768 kHz tuning-fork crystals?

Yes. The device is explicitly characterized for low-frequency crystal operation, including 32.768 kHz. Its low ICC (<75 µA), Schmitt-trigger inputs, and internal biasing make it ideal for RTC and low-power wake-up timing applications across the full –40 °C to +125 °C range.