Texas Instruments SN74AUP2G34DRYR

Overview

SN74AUP2G34DRYR from Texas Instruments is a dual non-inverting buffer gate in a 6-pin USON (DRY) package, optimized for ultra-low-power operation across 0.8 V to 3.6 V supply. It delivers 4.3 ns max propagation delay at 3.3 V, 1.5 pF typical input capacitance, and supports partial-power-down via Ioff, making it ideal for battery-powered portable logic interfacing.

For engineers reviewing the SN74AUP2G34DRYR datasheet, SN74AUP2G34DRYR pinout, SN74AUP2G34DRYR application, or SN74AUP2G34DRYR equivalent, key selection criteria include its sub-1 µA static ICC, 3.6-V I/O tolerance for mixed-voltage systems, and validated performance down to 0.8 V - critical for energy-constrained IoT sensor nodes and wearables.

Technical Context

The SN74AUP2G34DRYR implements two independent positive-logic buffers (Y = A), with no internal feedback or enable control. Its AUP-family architecture uses advanced CMOS process scaling to minimize both static leakage (ICC ≤ 0.9 mA) and dynamic switching loss (Cpd = 4.3 pF at 3.3 V).

It features rail-to-rail output swing, Ioff protection that disables outputs during power-down to prevent backflow current, and robust ESD immunity (2000-V HBM, 1000-V CDM). Input thresholds scale with VCC, supporting interoperability across 0.8–3.6 V logic domains without level shifters.

Key Specifications

Pinout & Package

SN74AUP2G34DRYR uses a 6-pin USON (Ultra-Thin Small Outline No-Lead) package, DRY variant, measuring 1.5 mm × 1.4 mm × 0.6 mm max height. The exposed thermal pad improves thermal dissipation in space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G34DCKR and 74AHC1G34SE-7, SN74AUP2G34DRYR uniquely balances sub-1-µA standby current, 0.8-V operability, and Ioff-enabled power-domain isolation - making it the sole option for next-generation energy-harvesting and medical wearable designs.

Availability

SN74AUP2G34DRYR is available at Aetrix Electronics and suitable for battery-powered portable electronics, IoT edge sensors, and medical wearables requiring stable component supply and long-term lifecycle assurance.

Supply support for SN74AUP2G34DRYR 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 focused on analog and embedded processing technologies, serving industrial, automotive, and consumer markets with high-reliability, energy-efficient solutions.

The AUP logic family, including SN74AUP2G34DRYR, was engineered specifically for ultra-low-power portable applications - delivering industry-leading static/dynamic power efficiency while maintaining robust signal integrity and mixed-voltage interoperability.

FAQ

What is the maximum operating temperature for SN74AUP2G34DRYR?

The SN74AUP2G34DRYR is rated for continuous operation from –40°C to +85°C ambient temperature. This range is validated per JEDEC JESD47 stress testing and confirmed in TI's production characterization data. All electrical specifications in the SCES751B datasheet apply across this full industrial temperature range, including propagation delay, drive strength, and Ioff behavior. Thermal derating is not required within these limits.

Does SN74AUP2G34DRYR require external pull-up resistors on its inputs?

No, SN74AUP2G34DRYR does not require external pull-up resistors. Its CMOS inputs have high impedance and defined VIH/VIL thresholds that scale with VCC. However, TI explicitly states in the Recommended Operating Conditions table that "all unused inputs must be held at VCC or GND" - meaning floating inputs are prohibited. Direct connection to VCC or GND satisfies this requirement without resistors.

Can SN74AUP2G34DRYR be used with a 0.9-V supply?

Yes, SN74AUP2G34DRYR is fully specified and functional at 0.9 V. Its minimum recommended VCC is 0.8 V, and all parameters - including VOH/VOL, tpd, and ICC - are characterized down to this voltage. At 0.9 V, typical tpd is 12.8 ns (CL = 5 pF), and ICC remains below 0.5 µA, making it suitable for energy-harvesting systems powered by thin-film batteries or RF harvesters.

Is the thermal pad on the SN74AUP2G34DRYR package required to be soldered?

Yes, the exposed thermal pad on the SN74AUP2G34DRYR DRY package must be soldered to a PCB thermal pad for reliable operation. TI's DRY0006A mechanical drawing specifies the pad as part of the thermal path, and the datasheet notes qJA = 234°C/W assumes proper thermal pad connection. Omitting solder paste or thermal via connections risks exceeding junction temperature limits under sustained load, especially above 2.5 V VCC.

How does Ioff functionality work in SN74AUP2G34DRYR during power-down?

In SN74AUP2G34DRYR, the Ioff circuitry actively disables both output drivers when VCC = 0 V, presenting high-impedance (≥10 MΩ) terminals at 1Y and 2Y. This prevents current backflow from live signal lines into the unpowered device - a critical feature for systems with staggered power sequencing, such as USB-C accessories or modular sensor boards. Ioff is tested per JESD78 Class II latch-up standards and verified at VI/VO = 0–3.6 V.