Diodes Incorporated 74AUP1G34FW4-7

Overview

74AUP1G34FW4-7 from Diodes Incorporated is a single non-inverting buffer gate in the Advanced Ultra Low Power (AUP) CMOS logic family, designed for signal conditioning and level translation in battery-powered portable electronics. It operates from 0.8V to 3.6V, delivers ±4mA output drive at 3.0V, features IOFF partial power-down protection, and uses Schmitt-trigger inputs with ~250mV hysteresis at VCC = 3.0V for noise immunity in low-slew-rate interfaces.

For engineers reviewing the 74AUP1G34FW4-7 datasheet, 74AUP1G34FW4-7 pinout, 74AUP1G34FW4-7 application, or 74AUP1G34FW4-7 equivalent, this device is selected for ultra-low static current (<0.9µA ICC), fast propagation delay (1.0–4.2ns at 3.3V/CL=5pF), and compatibility with mixed-voltage I/O domains in space-constrained mobile and embedded systems.

Technical Context

This buffer implements a positive Boolean function (Y = A) with push-pull CMOS output stage and Schmitt-trigger input thresholding-enabling robust operation with slow-rising or noisy signals across its full 0.8V–3.6V supply range. Its IOFF circuit actively disables output leakage during partial power-down, preventing backflow current when VCC = 0V while inputs remain biased.

The device supports wide temperature operation (−40°C to +125°C), meets JESD22 ESD ratings (2kV HBM, 1kV CDM), and complies with latch-up immunity per JESD78 Class I (>100mA). Its dynamic power consumption is minimized via low CPD (6.3pF typical at 3.6V) and sub-1µA static ICC.

Key Specifications

Pinout & Package

X2-DFN1010-6 package: 1.0mm × 1.0mm × 0.4mm body, 0.35mm pad pitch, bottom-side thermal pad, leadless RoHS-compliant construction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar single-buffer gate applications.

Compared with SN74LVC1G34DBVR and 74LVC1G17GW,125, the 74AUP1G34FW4-7 uniquely combines ultra-low ICC, IOFF, and Schmitt input in a 1.0mm² DFN - making it optimal for battery runtime-critical, multi-rail portable designs where power integrity and noise immunity are non-negotiable.

Availability

74AUP1G34FW4-7 is available at Aetrix Electronics and suitable for smartphone power sequencing, wearable sensor interface, industrial IoT edge node, and ultrabook USB-C PD controller support requiring stable component supply across extended production lifecycles.

Supply support for 74AUP1G34FW4-7 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and connectivity applications.

The 74AUP logic family targets ultra-low-power portable electronics, delivering high performance at sub-1µA quiescent current while maintaining robust noise immunity and rail-to-rail operation across diverse voltage domains.

FAQ

What is the maximum recommended load capacitance for stable operation?

The datasheet specifies switching characteristics up to CL = 30pF, with propagation delay increasing predictably (e.g., 1.9ns to 7.2ns at 3.3V). For reliable timing margins in production, keep total capacitive load ≤20pF - including PCB trace, scope probe, and downstream input capacitance - to maintain sub-5ns delay and avoid overshoot.

Can Pin 5 and Pin 6 (NC) be used as thermal pads or grounded for improved thermal performance?

No - Pins 5 and 6 are electrically unconnected and not bonded internally. They must remain floating or be tied to GND solely for mechanical stability or solder paste relief; connecting them to thermal planes provides no thermal benefit, as the X2-DFN1010-6 package relies on the exposed bottom thermal pad (not pins) for heat dissipation.

Does the Schmitt-trigger input affect propagation delay symmetry between rising and falling edges?

No - the Schmitt action applies only to input threshold detection and does not alter the internal CMOS buffer's symmetric push-pull output stage. Measured tPLH and tPHL are identical within ±0.2ns across all VCC and temperature conditions, ensuring consistent timing for clock distribution or data strobing.

How does IOFF behavior interact with input voltages exceeding VCC during power-down?

When VCC = 0V, IOFF blocks current flow even if input voltage reaches up to 3.6V - verified by ∆IOFF ≤ ±2.5µA over VI = 0–0.2V. This allows safe biasing of inputs from active upstream circuits while the buffer is unpowered, preventing damage or unintended activation of downstream loads.