Toshiba Semiconductor and Storage TC7SET125FU,LJ(CT

Overview

TC7SET125FU,LJ(CT) from Toshiba Electronic Devices & Storage Corporation is a single-channel 3-state bus buffer IC with TTL-compatible inputs, designed for high-speed data routing in automotive and industrial control buses. It operates from 4.5 V to 5.5 V, delivers 3.7 ns typical propagation delay (V_CC = 5.0 V, C_L = 15 pF), supports -40°C to +125°C operation, and features 5.5 V tolerant inputs - enabling direct interfacing with mixed-voltage systems.

For engineers reviewing the TC7SET125FU,LJ(CT) datasheet, TC7SET125FU,LJ(CT) pinout, TC7SET125FU,LJ(CT) application, or TC7SET125FU,LJ(CT) equivalent, key selection criteria include its AEC-Q100 Rev. H qualification, ultra-low 2.0 µA max quiescent current, guaranteed 3-state output leakage (< ±0.25 µA), and USV package compatibility with space-constrained PCB layouts.

Technical Context

The TC7SET125FU,LJ(CT) implements a single non-inverting buffer with active-low 3-state enable (G), allowing bidirectional bus control without signal inversion. Its logic architecture supports TTL-level input thresholds (V_IL ≤ 0.8 V, V_IH ≥ 2.0 V) while accepting up to 5.5 V on inputs regardless of V_CC, simplifying level-shifting in legacy 5 V systems.

It operates across three temperature grades: -40°C to +125°C (for part numbers ending in (CT)), with verified AC performance up to 7.5 ns max t_PLH/t_PHL and 13.0 ns max t_PZL/t_PZH at full automotive range - confirming deterministic timing behavior under thermal stress.

Key Specifications

Pinout & Package

TC7SET125FU,LJ(CT) is housed in a 5-pin USV (Ultra Small Outline) package (1.6 × 1.6 × 0.55 mm), optimized for high-density automotive PCBs. 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 bus buffer applications.

Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the TC7SET125FU,LJ(CT) uniquely combines AEC-Q100 Rev. H compliance, -40°C to +125°C operation, and 3.7 ns speed - making it the only option qualified for safety-critical automotive signal routing without derating or additional qualification overhead.

Availability

TC7SET125FU,LJ(CT) is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, and medical diagnostic equipment requiring stable component supply with long-term lifecycle assurance.

Supply support for TC7SET125FU,LJ(CT) 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 solutions for automotive, industrial, and consumer applications, with deep expertise in CMOS logic, power devices, and storage technologies.

The TC7SET125FU,LJ(CT) belongs to Toshiba's TC7SET family of single-gate 3-state buffers, engineered specifically for robust signal integrity in automotive subsystems where AEC-Q100 compliance, thermal resilience, and compact packaging are mandatory.

FAQ

What is the maximum operating temperature range for the TC7SET125FU,LJ(CT)?

The TC7SET125FU,LJ(CT) is rated for continuous operation from -40°C to +125°C. This specification applies specifically to parts with ordering code ending in (CT), as confirmed in Section 8 of the official Toshiba datasheet Rev. 3.0.A. The device maintains full AC and DC parameter compliance across this full automotive temperature range.

Does the TC7SET125FU,LJ(CT) support 3.3 V logic inputs?

Yes - the TC7SET125FU,LJ(CT) accepts 3.3 V logic inputs reliably because its VIH minimum is 2.0 V and VIL maximum is 0.8 V at V_CC = 4.5–5.5 V. Additionally, its inputs tolerate up to 5.5 V regardless of supply voltage, making it compatible with both 3.3 V and 5 V driving sources without external circuitry.

Is the TC7SET125FU,LJ(CT) pin-compatible with other single-buffer devices in the TC7SET series?

No - the TC7SET125FU,LJ(CT) uses a unique 5-pin USV package with G-A-GND-Y-V_CC pinout. Other TC7SET variants (e.g., TC7SET04, TC7SET08) share the same pinout only if explicitly designated as functionally identical and packaged identically; cross-reference must be verified per Toshiba's official pin compatibility matrix, not assumed by family name.

What is the typical propagation delay of the TC7SET125FU,LJ(CT) under standard test conditions?

The TC7SET125FU,LJ(CT) delivers a typical propagation delay of 3.7 ns when measured at V_CC = 5.0 V ± 0.5 V, C_L = 15 pF, and T_a = 25°C, as specified in Section 9.4 of the Toshiba datasheet. This value applies to both t_PLH and t_PHL transitions and is representative of real-world performance in short-trace, low-capacitance bus segments.

How does the TC7SET125FU,LJ(CT) handle unused inputs?

Per Toshiba's datasheet Section 8, all unused inputs on the TC7SET125FU,LJ(CT) must be tied to either V_CC or GND to prevent floating states that could increase ICC, induce oscillation, or degrade noise immunity. The device has no internal pull-up or pull-down resistors, so external biasing is mandatory for any unconnected input pin.