Toshiba Semiconductor and Storage TC7SH126FU,LJ(CT

Overview

TC7SH126FU,LJ(CT) from Toshiba Electronic Devices & Storage Corporation is a single-channel CMOS bus buffer with 3-state output, designed for signal routing and bus isolation in low-voltage digital systems. It operates from 2.0 V to 5.5 V, delivers 3.8 ns typical propagation delay at 5.0 V/15 pF, supports AEC-Q100 Grade 2 qualification (-40 °C to 125 °C), and features 5.5 V tolerant inputs - enabling use in mixed-voltage I²C, SPI, and control bus interfaces.

For engineers reviewing the TC7SH126FU,LJ(CT) datasheet, TC7SH126FU,LJ(CT) pinout, TC7SH126FU,LJ(CT) application, or TC7SH126FU,LJ(CT) equivalent, key selection criteria include its USV (SOT-353) 5-pin package, rail-to-rail input tolerance, ultra-low ICC of 2.0 µA max at 25 °C, and guaranteed 3-state leakage < 0.1 µA - critical for power-sensitive automotive body electronics and industrial sensor hubs.

Technical Context

The TC7SH126FU,LJ(CT) implements a non-inverting 3-state buffer with active-high output enable (G), supporting bidirectional bus control via external logic. Its input structure accepts voltages up to 5.5 V independent of VCC, allowing level translation between 3.3 V controllers and 5 V peripherals without external resistors.

It uses Toshiba's advanced CMOS process to achieve high noise immunity (VNIH/VNIL = 28 % VCC min) and stable operation across -40 °C to +125 °C - validated per AEC-Q100 Rev. H for automotive under-hood and infotainment subsystems where thermal cycling and EMI resilience are mandatory.

Key Specifications

Pinout & Package

TC7SH126FU,LJ(CT) is housed in the USV (JEDEC SOT-353) 5-pin ultra-small surface-mount package, measuring 1.25 mm × 1.25 mm × 0.5 mm with 0.65 mm lead pitch and gull-wing terminations.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G125DBVR and 74LVC1G125GW,125, the TC7SH126FU,LJ(CT) uniquely combines USV's 1.25 mm² footprint with AEC-Q100 Rev. H certification and guaranteed 5.5 V input tolerance - making it optimal for space- and reliability-critical automotive modules where pin count and thermal profile are constrained.

Availability

TC7SH126FU,LJ(CT) is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, low-power IoT node bus isolation, and consumer audio I²C level translation requiring stable component supply and long-term lifecycle support.

Supply support for TC7SH126FU,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 markets, with emphasis on power efficiency, miniaturization, and AEC-Q100 compliance.

The TC7SH126FU,LJ(CT) belongs to Toshiba's TC7SH ultra-high-speed CMOS logic family, engineered specifically for low-voltage, low-power bus buffering in automotive and industrial control systems where small size and thermal robustness are essential.

FAQ

What is the operating temperature range for TC7SH126FU,LJ(CT)?

The TC7SH126FU,LJ(CT) is rated for -40 °C to +125 °C operation and is AEC-Q100 Rev. H qualified for Grade 2 automotive applications. This specification applies specifically to devices with ordering part number ending in "J(CT", as confirmed in Toshiba's official datasheet Rev. 3.0.B. The extended temperature range ensures reliable performance in engine bay and transmission control units.

Does TC7SH126FU,LJ(CT) support 5 V tolerant inputs when powered from 3.3 V?

Yes, TC7SH126FU,LJ(CT) supports 5.5 V tolerant inputs regardless of VCC voltage - including when VCC = 3.3 V. This is explicitly stated in the Features section and verified in Absolute Maximum Ratings (VIN = -0.5 to 7.0 V). The input protection structure enables direct connection to 5 V buses without external components, simplifying mixed-voltage interface design.

What is the typical propagation delay of TC7SH126FU,LJ(CT) at 5.0 V?

The typical propagation delay (tPLH/tPHL) of TC7SH126FU,LJ(CT) is 3.8 ns at VCC = 5.0 V and CL = 15 pF, as specified in the AC Characteristics table (Section 9.4) of the official datasheet. This value is measured under standard test conditions with input rise/fall time of 3 ns and confirms suitability for high-speed digital control paths in automotive and industrial timing-critical applications.

Which package type does TC7SH126FU,LJ(CT) use?

TC7SH126FU,LJ(CT) uses the USV package, which is Toshiba's designation for the JEDEC-standard SOT-353 outline: a 5-pin, gull-wing, ultra-small surface-mount package measuring 1.25 mm × 1.25 mm × 0.5 mm with 0.65 mm lead pitch. Package dimensions and weight (0.006 g typ.) are documented in the datasheet Package Dimensions section.

Is TC7SH126FU,LJ(CT) pin-compatible with other single-buffer logic devices?

TC7SH126FU,LJ(CT) has a fixed 5-pin USV (SOT-353) pinout: Pin 1 = A (input), Pin 2 = GND, Pin 3 = G (output enable), Pin 4 = VCC, Pin 5 = Y (output). While functionally equivalent to other single 3-state buffers like SN74LVC1G125, it is not pin-compatible due to differing pin assignments - e.g., SN74LVC1G125DBVR places GND on Pin 1 and VCC on Pin 5. Always verify pin mapping before substitution.