Toshiba Semiconductor and Storage 7UL1G125NX,ELF(S

Overview

7UL1G125NX from Toshiba Electronic Devices & Storage Corporation is a single-channel CMOS bus buffer with 3-state output, designed for low-voltage logic level translation and bidirectional data bus isolation in space-constrained embedded systems. It operates from 0.9 V to 3.6 V, delivers ±8.0 mA output drive at 3.0 V, achieves 2.3 ns typical propagation delay at 3.3 V/10 pF, and supports industrial temperature range (−40 °C to +125 °C).

For engineers reviewing the 7UL1G125NX datasheet, 7UL1G125NX pinout, 7UL1G125NX application, or 7UL1G125NX equivalent, this device serves as a high-speed, low-power, voltage-tolerant buffer for I²C/SPI peripheral interfacing, memory address/data bus control, and power-aware signal routing in portable and automotive-adjacent electronics.

Technical Context

The 7UL1G125NX implements a single non-inverting buffer with active-low 3-state enable (G), enabling precise control of signal flow on shared buses. Its input structure tolerates up to 3.6 V regardless of VCC, allowing safe interfacing between 1.2 V, 1.8 V, 2.5 V, and 3.3 V domains without external level shifters.

It features power-down protection: outputs enter high-impedance state and clamp leakage when VCC = 0 V, preventing back-driving of powered subsystems. The device uses silicon monolithic CMOS process optimized for ultra-low static current (ICC ≤ 10 µA max over full temperature range) and fast edge response (input rise/fall time ≤ 10 ns/V).

Key Specifications

Pinout & Package

7UL1G125NX is housed in a 1.2 mm × 1.0 mm, 0.4 mm pitch XSON6 (MP6D) package - a leadless, bottom-terminated, thermally enhanced micro-package suitable for high-density PCB layouts and reflow-compatible assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TXS0101DCKR and SN74LVC1G125DBVR, the 7UL1G125NX uniquely combines sub-1V operation, XSON6 miniaturization, and robust 3.6 V input tolerance - making it the optimal choice for next-generation portable and automotive-edge electronics where voltage scalability and footprint efficiency are co-primary constraints.

Availability

7UL1G125NX is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power wearable hubs, automotive body control modules, and portable test equipment requiring stable component supply across extended temperature and voltage ranges.

Supply support for 7UL1G125NX 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 is a global semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with core expertise in low-power CMOS process technology and automotive-grade reliability validation.

The 7UL1G125NX belongs to Toshiba's UL-series ultra-low-voltage logic family, engineered specifically for energy-efficient signal routing in battery-operated and thermally constrained embedded systems - emphasizing minimal propagation delay, wide VCC scalability, and robust I/O tolerance.

FAQ

What is the minimum supply voltage required for functional operation of the 7UL1G125NX?

The 7UL1G125NX is fully specified to operate at VCC = 0.9 V, with guaranteed DC and AC performance including VIH/VIL thresholds, output drive, and propagation delay. At 0.9 V, it maintains ±0.02 mA output capability and supports input rise/fall rates up to 10 ns/V - enabling use in energy-harvesting and ultra-low-power sensor nodes where supply rails dip below 1.0 V.

Does the 7UL1G125NX require external pull-up or pull-down resistors on its inputs or outputs?

No. The 7UL1G125NX has no internal pull resistors and does not require external ones for basic functionality. Inputs (A and G) are CMOS high-impedance and must be actively driven or tied to VCC/GND per datasheet guidance. The output (Y) is push-pull and self-terminating; external pull-ups are unnecessary unless implementing wired-OR logic - which contradicts its 3-state architecture.

Can the 7UL1G125NX safely interface a 3.3 V microcontroller with a 1.2 V FPGA I/O bank?

Yes. The 7UL1G125NX accepts 3.3 V logic inputs while operating at VCC = 1.2 V, thanks to its 3.6 V tolerant input structure. When configured with G = low, it buffers the 3.3 V signal to a 1.2 V-compatible output level (VOH ≥ 0.75×VCC = 0.9 V, VOL ≤ 0.25×VCC = 0.3 V), meeting standard 1.2 V LVCMOS thresholds without level-shifting components.

What is the thermal performance of the 7UL1G125NX in the XSON6 package under continuous 8 mA output load?

In the XSON6 (MP6D) package, the 7UL1G125NX exhibits a junction-to-ambient thermal resistance (θJA) of 290 °C/W (typ.). Under worst-case conditions - VCC = 3.6 V, IO = ±8 mA, ambient = 85 °C - power dissipation remains below 28 mW, resulting in junction temperature rise of <8.2 °C above ambient. This confirms reliable operation within its −40 °C to +125 °C rating even in sealed enclosures.

Is the NC pin (Pin 6) required to be grounded or left floating in the 7UL1G125NX layout?

Pin 6 is a true no-connect (NC) terminal - internally unconnected and electrically isolated. It must be left floating with no solder mask opening, trace, or thermal pad. Connecting it to GND, VCC, or any other net may cause unpredictable behavior or violate Toshiba's qualification testing conditions. The XSON6 footprint design must treat Pin 6 as an excluded pad.