Toshiba Semiconductor and Storage 7UL1G34FU,LF

Overview

7UL1G34FU,LF from Toshiba Electronic Devices & Storage Corporation is a single-channel CMOS non-inverting buffer IC designed for low-voltage logic interfacing in space-constrained applications. It delivers ±8.0 mA output drive at VCC = 3.0 V, supports 0.9–3.6 V supply operation, features 2.5 ns typical propagation delay at 3.3 V/15 pF, and operates across –40°C to +125°C for automotive and industrial control modules.

For engineers reviewing the 7UL1G34FU,LF datasheet, 7UL1G34FU,LF pinout, 7UL1G34FU,LF application, or 7UL1G34FU,LF equivalent, key selection criteria include its 3.6 V-tolerant inputs, power-down protection outputs, ultra-low quiescent current (≤80 µA at 125°C), and USV package compatibility with high-density PCB layouts.

Technical Context

This device implements a single-stage CMOS non-inverting buffer with rail-to-rail input voltage tolerance up to 3.6 V independent of VCC, enabling mixed-voltage domain interfacing. Its output stage provides symmetrical sourcing/sinking capability and includes power-down protection to prevent back-driving when VCC = 0 V.

The 7UL1G34FU,LF uses silicon monolithic construction with optimized gate oxide thickness and channel doping to maintain stable VIH/VIL thresholds across 0.9–3.6 V VCC and full temperature range. Propagation delay is characterized with 3 ns input rise/fall times and load capacitances of 10–30 pF, supporting high-speed signal conditioning in serial data paths and sensor interface chains.

Key Specifications

Pinout & Package

7UL1G34FU,LF is housed in a 5-pin Ultra Small Package (USV), measuring 1.2 × 0.8 mm with 0.5 mm pitch and 0.4 mm height. The package is lead-free, RoHS-compliant, and rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-inverting buffer applications.

Compared with TXU0101DCKR and SN74LVC1G07DBVR, the 7UL1G34FU,LF uniquely combines 0.9 V operation, 3.6 V input tolerance, power-down safe output, and 2.5 ns speed - making it optimal for ultra-low-voltage, mixed-domain, and fail-safe buffer roles where reliability under partial power loss is critical.

Availability

7UL1G34FU,LF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, wearable medical devices, and smart metering systems requiring stable component supply across extended temperature and voltage ranges.

Supply support for 7UL1G34FU,LF 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

Toshiba Electronic Devices & Storage Corporation designs and manufactures high-reliability semiconductor components for automotive, industrial, and consumer applications, with emphasis on low-power logic, power management, and memory solutions.

The 7UL1G34FU,LF belongs to Toshiba's UL-series ultra-low-voltage logic family, engineered specifically for energy-efficient signal conditioning in battery-operated and thermally demanding environments.

FAQ

What is the absolute maximum input voltage rating for 7UL1G34FU,LF?

The absolute maximum input voltage for 7UL1G34FU,LF is –0.5 V to +4.6 V, as specified in the Absolute Maximum Ratings table. This exceeds the 3.6 V input tolerance feature, which guarantees functional operation up to 3.6 V across all valid VCC conditions. Exceeding 4.6 V risks permanent damage, even momentarily.

Does 7UL1G34FU,LF support operation at 0.9 V supply with full DC specifications?

Yes, 7UL1G34FU,LF is fully characterized at VCC = 0.9 V, including VIH/VIL thresholds, VOH/VOL levels, and ±0.02 mA output drive. At this voltage, DC parameters such as VOH ≥ 0.75 V and VOL ≤ 0.1 V are guaranteed, and propagation delay remains within 20.7 ns (max) at CL = 10 pF, enabling reliable use in ultra-low-power sensor nodes.

How does the power-down protection of 7UL1G34FU,LF function in practice?

When VCC = 0 V, the 7UL1G34FU,LF output remains high-impedance and tolerates up to 3.6 V applied externally - preventing current flow from other powered devices on the same net. This eliminates risk of latch-up or unintended activation in systems undergoing partial power cycling, such as modular industrial controllers or multi-processor wearables.

Is the USV package of 7UL1G34FU,LF compatible with standard reflow profiles?

Yes, the USV package of 7UL1G34FU,LF complies with JEDEC J-STD-020 moisture sensitivity level 1 and supports standard Pb-free reflow profiles, including peak temperatures up to 260°C. Its 0.5 mm pitch and 0.4 mm profile allow placement using standard 0201-capable pick-and-place equipment and inspection via automated optical inspection (AOI).

What is the maximum output current the 7UL1G34FU,LF can sustain continuously at 125°C?

At Topr = 125°C, the 7UL1G34FU,LF guarantees ±8.0 mA output current only at VCC ≥ 3.0 V. At lower VCC (e.g., 1.8 V), the sustained output current drops to ±3.0 mA (min), as confirmed in the Operating Ranges table. Continuous operation above these limits may cause thermal shutdown or parametric drift outside specification.