Texas Instruments SN74AUP1G34DSFR

Overview

SN74AUP1G34DSFR from Texas Instruments is a single low-power CMOS buffer gate (Y = A) in a 6-pin SON package (1.45 mm × 1.00 mm), operating from 0.8 V to 3.6 V supply, with 4.1 pF typical dynamic power dissipation capacitance at 3.3 V, 1.5 pF typical input capacitance, and 4.1 ns maximum propagation delay at 3.3 V. It enables voltage-level translation in ultra-compact portable electronics such as blood pressure monitors and CPAP machines.

For engineers reviewing the SN74AUP1G34DSFR datasheet, SN74AUP1G34DSFR pinout, SN74AUP1G34DSFR application, or SN74AUP1G34DSFR equivalent, key selection criteria include I_off support for live insertion and partial power-down, input hysteresis (250 mV typ at 3.3 V) for noise immunity with slow transitions, and 3.6-V I/O tolerance enabling mixed-voltage signal interfacing between 0.8–1.2 V microcontrollers and 3.3 V peripherals.

Technical Context

This device belongs to TI's AUP (Advanced Ultra-Low-Power) logic family, optimized for battery-powered systems requiring sub-1 µA quiescent current (I_CC = 0.9 µA max) and robust signal integrity across wide V_CC range. Its architecture integrates input hysteresis and controlled edge rates to suppress overshoot/undershoot (<10% of V_CC) without external termination.

The SN74AUP1G34DSFR implements a non-inverting buffer function with fully specified I_off protection-disabling outputs and blocking back-drive current when V_CC = 0 V-enabling safe hot-plug operation in modular sensor interfaces and field-transmitter signal conditioning paths.

Key Specifications

Pinout & Package

SN74AUP1G34DSFR uses a 6-pin SON (DSF) package measuring 1.45 mm × 1.00 mm with 0.5-mm pitch, optimized for high-density PCB layouts in space-constrained applications like e-books and fingerprint biometrics modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G34DSFR and 74AUP1G34GMH, the SN74AUP1G34DSFR uniquely balances ultra-low I_CC, I_off-enabled live insertion, and 6-pin SON manufacturability - making it optimal for medical and portable industrial systems requiring long battery life and modularity.

Availability

SN74AUP1G34DSFR is available at Aetrix Electronics and suitable for medical sensor interfaces, portable diagnostic devices, and industrial field transmitters requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.

Supply support for SN74AUP1G34DSFR 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

Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in low-power logic design and automotive-grade reliability validation.

The SN74AUP1G34DSFR belongs to TI's Advanced Ultra-Low-Power (AUP) logic family, engineered specifically for battery-operated portable electronics where sub-1 µA quiescent current, mixed-voltage interoperability, and ultra-compact packaging are essential design requirements.

FAQ

What is the maximum operating temperature for SN74AUP1G34DSFR?

The SN74AUP1G34DSFR is rated for operation from –40°C to +85°C ambient temperature, as confirmed in Section 7.3 (Recommended Operating Conditions) of the SCES603K datasheet. This range supports deployment in industrial field transmitters and medical devices exposed to environmental thermal cycling without derating.

Does SN74AUP1G34DSFR support level translation between 1.2 V and 3.3 V domains?

Yes, SN74AUP1G34DSFR supports bidirectional level translation: its inputs tolerate up to 3.6 V independent of V_CC, and it operates down to 0.8 V. When powered at 1.2 V, it reliably recognizes 3.3 V inputs (VIH ≥ 2.0 V at V_CC = 3.0–3.6 V), and outputs swing rail-to-rail at 1.2 V - enabling direct interface between 1.2 V microcontrollers and 3.3 V peripherals.

How does the I_off feature function in SN74AUP1G34DSFR?

The I_off circuitry in SN74AUP1G34DSFR disables both input and output buffers when V_CC = 0 V, limiting leakage current to ≤0.6 µA. This prevents back-current flow from live 3.3 V signal lines into an unpowered section - a critical requirement for hot-pluggable modules in network-attached storage and modular diagnostic equipment using SN74AUP1G34DSFR.

What is the input hysteresis value of SN74AUP1G34DSFR and why does it matter?

SN74AUP1G34DSFR provides 250 mV typical input hysteresis at 3.3 V V_CC, as specified in Section 1 (Features) and Section 9.3 (Feature Description). This hysteresis prevents chatter on slow-rising or noisy signals - such as those from thermistors or pressure sensors - ensuring clean, glitch-free logic transitions without external Schmitt triggers.

Can SN74AUP1G34DSFR drive a 50-pF load within timing specifications?

No - SN74AUP1G34DSFR timing parameters (e.g., t_pd = 4.1 ns max) are characterized only up to CL = 30 pF per Section 7.9 of the datasheet. Driving 50 pF would increase propagation delay beyond specification and may degrade signal integrity; for heavier loads, consider adding series termination or selecting a higher-drive buffer variant.