Texas Instruments SN74AUP1G240DRYR

Overview

SN74AUP1G240 from Texas Instruments is a low-power single inverter with active-low 3-state output, designed for voltage-level translation and bus isolation in portable electronics. It operates across 0.8 V to 3.6 V supply range, delivers 4.7 ns max propagation delay at 3.3 V, consumes only 0.9 µA max ICC, and supports Ioff partial power-down mode - enabling use in battery-powered medical sensors and industrial I/O modules.

For engineers reviewing the SN74AUP1G240 datasheet, SN74AUP1G240 pinout, SN74AUP1G240 application, or SN74AUP1G240 equivalent, key selection criteria include its ultra-low static/dynamic power (ICC ≤ 0.9 µA, Cpd = 4.2 pF), 3.6-V I/O tolerance, input hysteresis for noise immunity, and validated 6-pin SON (DRY) package compatibility with high-density PCB layouts.

Technical Context

The SN74AUP1G240 implements a single inverting buffer with active-low output enable (OE), performing Y = A logic under enabled state and entering high-impedance (Z) when OE is high. Its Ioff circuitry ensures all I/O pins enter high-impedance during power-down, preventing back-current flow and enabling hot-insertion in mixed-voltage systems.

It features standard CMOS inputs with 1.5 pF typical input capacitance and built-in hysteresis, allowing robust operation with slow or noisy signals. The balanced push-pull 3-state output drives up to ±20 mA while maintaining <10% overshoot/undershoot relative to VCC, supporting clean signal integrity in point-to-point interconnects.

Key Specifications

Pinout & Package

SN74AUP1G240DRYR uses a 6-pin SON (Small Outline No-Lead) package measuring 1.00 mm × 1.45 mm, optimized for space-constrained portable designs. Thermal resistance RθJA is 342.1°C/W, requiring minimal PCB copper area for thermal management in sealed enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar inverter-with-3-state-output applications.

Compared with SN74LVC1G04DCKR and NC7SZ04P5X, SN74AUP1G240DRYR uniquely combines sub-µA static power, Ioff-enabled rail isolation, and 0.8-V operation - making it the only viable option for energy-harvesting sensors and ultra-low-power wearables requiring long-term autonomy.

Availability

SN74AUP1G240DRYR is available at Aetrix Electronics and suitable for medical diagnostics equipment, industrial PLC I/O modules, and battery-powered IoT gateways requiring stable component supply across extended product lifecycles.

Supply support for SN74AUP1G240DRYR 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, embedded processing, and connectivity technologies, with decades of expertise in low-power logic innovation.

SN74AUP1G240 belongs to TI's AUP (Advanced Ultra-Low Power) family, engineered specifically for battery-operated portable electronics requiring extended runtime, mixed-voltage interoperability, and robust signal integrity at sub-1-V operation.

FAQ

What is the function of the NC pin on SN74AUP1G240DRYR?

The NC (No Connection) pin on SN74AUP1G240DRYR is an unconnected die pad with no internal bond wire. It must remain electrically floating and unconnected on the PCB - neither tied to VCC nor GND - to prevent parasitic coupling, signal integrity degradation, or potential short circuits during reflow soldering. This pin is present due to the 6-pin SON package variant but carries zero electrical function in SN74AUP1G240DRYR.

Can SN74AUP1G240DRYR operate reliably at 0.8 V supply voltage?

Yes, SN74AUP1G240DRYR is fully specified from 0.8 V to 3.6 V per its Recommended Operating Conditions table. At 0.8 V, it achieves functional logic operation with tpd ≤ 17.1 ns (CL = 5 pF), ICC ≤ 0.5 µA, and maintains valid VOH/VOL levels - making it suitable for next-generation ultra-low-voltage MCUs and energy-harvesting systems where traditional logic families fail.

How does the Ioff feature protect systems using SN74AUP1G240DRYR?

The Ioff feature in SN74AUP1G240DRYR disables all I/O pins (A, Y, OE) into high-impedance when VCC = 0 V, limiting leakage current to ≤ 0.6 µA across –40°C to +85°C. This prevents back-current flow from live buses into unpowered sections - protecting downstream FPGAs, ADCs, or memory in modular systems during hot-swap events or partial power-down sequences.

Is SN74AUP1G240DRYR compatible with 3.3-V logic while powered at 1.2 V?

Yes, SN74AUP1G240DRYR supports 3.6-V tolerant inputs and outputs. When powered at 1.2 V, its A and Y pins accept and drive 3.3-V signals without damage or level-shifter circuitry - enabling direct interface between 1.2-V SoCs and legacy 3.3-V peripherals such as UART transceivers, SD card interfaces, or display drivers in portable instrumentation.

What is the recommended pull-up resistor value for OE on SN74AUP1G240DRYR?

Texas Instruments recommends tying OE to VCC via a pull-up resistor to ensure high-impedance state during power-up/power-down. The minimum resistor value depends on the driver's current-sinking capability - typically 10 kΩ to 100 kΩ suffices for most applications. For systems with fast VCC ramp rates (<100 µs), a 10 kΩ resistor ensures reliable OE deassertion; for slower ramps, 47 kΩ balances current savings and noise immunity.