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Toshiba Semiconductor and Storage TC7SZ34F,LJ(CT

Name: TC7SZ34F,LJ(CT
Brand: Toshiba Semiconductor and Storage
SKU: TC7SZ34F,LJ(CT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TC7SZ34F,LJ(CT

Manufacturer:: Toshiba Semiconductor and Storage

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: SC-74A, SOT-753

Datasheet:: TC7SZ34F,LJ(CT.pdf

Description:: IC BUFFER NON-INVERT 5.5V SMV

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Product details

Overview

TC7SZ34F,LJ(CT) from Toshiba Electronic Devices & Storage Corporation is a single-channel CMOS non-inverting buffer IC designed for signal conditioning and level translation in low-power digital systems. It delivers ±24 mA output drive at VCC = 3.0 V, achieves 2.4 ns typical propagation delay at 5.0 V/50 pF, operates across 1.65–5.5 V supply, and supports automotive-grade temperature range (−40 to +85 °C) per its J(CT suffix.

For engineers reviewing the TC7SZ34F,LJ(CT) datasheet, TC7SZ34F,LJ(CT) pinout, TC7SZ34F,LJ(CT) application, or TC7SZ34F,LJ(CT) equivalent, key selection criteria include its 5.5 V-tolerant inputs, power-down protection outputs, AEC-Q100 Rev. H compliance, and compatibility with 3.3 V TC74LCX-series timing performance-critical for automotive body control modules and industrial I/O interface designs.

Technical Context

The TC7SZ34F,LJ(CT) implements a single-stage CMOS non-inverting buffer with rail-to-rail input voltage tolerance up to 5.5 V and output clamping during power-down states. Its logic function is defined by a truth table where output Y follows input A (L→L, H→H), with no internal feedback or hysteresis.

It features dual-voltage operation capability: DC characteristics are specified across VCC = 1.65–5.5 V, and AC performance is validated at 1.8 V, 2.5 V, 3.3 V, and 5.0 V supply points with load capacitances of 15 pF and 50 pF-enabling interoperability between mixed-voltage subsystems.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Function	Non-inverting buffer: output replicates input state with no inversion or delay compensation.
Propagation Delay	2.4 ns (typ.) at VCC = 5.0 V, CL = 50 pF - enables high-speed signal routing in 50 MHz+ digital interfaces.
Supply Voltage Range	1.65 V to 5.5 V - supports direct interfacing with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families without level shifters.
Output Drive	±24 mA (min.) at VCC = 3.0 V - drives multiple standard TTL or CMOS loads or short PCB traces without buffering.
Input Tolerance	5.5 V tolerant inputs - allows safe connection to higher-voltage buses while powered from lower VCC (e.g., 3.3 V).
Operating Temperature	−40 °C to +85 °C - qualified for under-hood automotive and industrial control environments (J(CT suffix).
AEC-Q100 Compliance	Compliant with AEC-Q100 Rev. H - meets stress test requirements for automotive electronics reliability.

Pinout & Package

TC7SZ34F,LJ(CT) is housed in a 5-pin SOT-25 (JEDEC) package, also designated SMV by Toshiba, with 1.27 mm pitch and 14 mg typical weight. The package is surface-mount, lead-free, and RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
1	Input (A)	CMOS-compatible digital input accepting 5.5 V max; must be tied to VCC or GND if unused.
2	GND	Ground reference for all internal circuitry and output return path.
3	Output (Y)	Push-pull CMOS output with ±24 mA drive capability and 5.5 V power-down protection.
4	VCC	Primary supply rail (1.65–5.5 V); powers internal logic and output stage.
5	NC	No connect - internally unconnected; left floating or grounded per layout best practice.

Key Features

Feature	Design Value
5.5 V tolerant inputs	Enables robust interfacing with legacy 5 V systems while operating from 1.8 V or 3.3 V rails-eliminates need for external level translators.
Power-down protection output	Prevents back-driving and latch-up when VCC = 0 V, supporting hot-swap and partial-power-down system architectures.
High-speed operation	2.4 ns typical tPD at 5 V/50 pF ensures minimal timing skew in clock distribution or data path buffering applications.
AEC-Q100 Rev. H qualification	Validated for automotive use including temperature cycling, ESD, and HTOL-reduces qualification effort for Tier 1 suppliers.
Wide VCC range	Single device replaces multiple voltage-specific buffers (e.g., 1.8 V, 2.5 V, 3.3 V variants), simplifying BOM and inventory management.

Applications

Automotive Body Control Unit	Industrial PLC Digital I/O Module
Use Scenario: Signal buffering between microcontroller GPIO and high-current relay drivers in door module ECUs. IC Role / Device Role / Timing Role: Non-inverting buffer isolating MCU pins from inductive load transients while maintaining signal integrity. Use Value: ±24 mA drive capability directly switches optocoupler inputs; 5.5 V input tolerance accommodates sensor feedback lines operating at 5 V.	Use Scenario: Level-shifting and fanout expansion for 3.3 V FPGA I/O driving 24 V discrete I/O cards. IC Role / Device Role / Timing Role: Voltage-translating buffer enabling bidirectional signal compatibility between low-voltage logic and industrial field-side circuits. Use Value: 1.65–5.5 V operation allows direct 3.3 V FPGA interface; power-down protection prevents backfeed during card hot-swap.
Consumer Audio System Power Sequencing	Medical Diagnostic Equipment Interface
Use Scenario: Controlling power-enable signals for analog audio codecs and ADCs in multi-rail audio SoCs. IC Role / Device Role / Timing Role: Glue logic buffer ensuring clean, glitch-free enable sequencing across independent voltage domains. Use Value: 2.4 ns propagation delay minimizes timing uncertainty in power-up sequences; −40 to +85 °C rating supports extended ambient operation.	Use Scenario: Isolating microcontroller UART lines from external patient-monitoring peripherals with mixed-voltage signaling. IC Role / Device Role / Timing Role: Signal conditioner providing ESD-hardened, noise-immune serial interface buffering. Use Value: AEC-Q100 qualification correlates with high-reliability process controls; 5.5 V input tolerance handles peripheral-side 5 V logic safely.

Automotive Body Control Unit

Industrial PLC Digital I/O Module

Use Scenario: Signal buffering between microcontroller GPIO and high-current relay drivers in door module ECUs.

IC Role / Device Role / Timing Role: Non-inverting buffer isolating MCU pins from inductive load transients while maintaining signal integrity.

Use Value: ±24 mA drive capability directly switches optocoupler inputs; 5.5 V input tolerance accommodates sensor feedback lines operating at 5 V.

Use Scenario: Level-shifting and fanout expansion for 3.3 V FPGA I/O driving 24 V discrete I/O cards.

IC Role / Device Role / Timing Role: Voltage-translating buffer enabling bidirectional signal compatibility between low-voltage logic and industrial field-side circuits.

Use Value: 1.65–5.5 V operation allows direct 3.3 V FPGA interface; power-down protection prevents backfeed during card hot-swap.

Consumer Audio System Power Sequencing

Medical Diagnostic Equipment Interface

Use Scenario: Controlling power-enable signals for analog audio codecs and ADCs in multi-rail audio SoCs.

IC Role / Device Role / Timing Role: Glue logic buffer ensuring clean, glitch-free enable sequencing across independent voltage domains.

Use Value: 2.4 ns propagation delay minimizes timing uncertainty in power-up sequences; −40 to +85 °C rating supports extended ambient operation.

Use Scenario: Isolating microcontroller UART lines from external patient-monitoring peripherals with mixed-voltage signaling.

IC Role / Device Role / Timing Role: Signal conditioner providing ESD-hardened, noise-immune serial interface buffering.

Use Value: AEC-Q100 qualification correlates with high-reliability process controls; 5.5 V input tolerance handles peripheral-side 5 V logic safely.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G07DBVR	Open-drain output; requires external pull-up; no power-down protection; max VCC = 5.5 V.	Suitable for wired-OR bus applications but not direct replacement for push-pull drive or hot-swap isolation.	Select when open-drain logic or bus arbitration is required; avoid if active-drive capability or power-down safety is needed.
74AUP1G07GW,125	Lower ICC (max 0.9 µA at 3.3 V); slower tPD (4.1 ns typ. at 3.3 V); −40 to +125 °C rating; no AEC-Q100 claim.	Better for ultra-low-power portable devices; wider temp range but lacks automotive qualification.	Prefer for battery-powered instrumentation; not recommended for automotive production without additional qualification.

Compared with SN74LVC1G07DBVR and 74AUP1G07GW,125, the TC7SZ34F,LJ(CT) uniquely combines AEC-Q100 Rev. H compliance, 5.5 V power-down protection, and ±24 mA drive in a single SOT-25 package-making it the only option qualified for automotive body electronics requiring fail-safe signal buffering.

Availability

TC7SZ34F,LJ(CT) is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC I/O modules, consumer audio power sequencing, and medical diagnostic equipment interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for TC7SZ34F,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 components for automotive, industrial, and consumer applications, with emphasis on quality, longevity, and regulatory compliance.

The TC7SZ34F,LJ(CT) belongs to Toshiba's TC7SZ series of ultra-high-speed, low-voltage CMOS logic buffers-engineered specifically for automotive signal integrity, mixed-voltage interfacing, and robust operation in harsh environments.

FAQ

What is the operating temperature range for TC7SZ34F,LJ(CT)?

The TC7SZ34F,LJ(CT) is rated for −40 °C to +85 °C operation, as confirmed by its J(CT ordering suffix and AEC-Q100 Rev. H qualification documentation. This range applies specifically to the TC7SZ34F,LJ(CT) variant and is validated across all electrical parameters in the datasheet's Section 8 and 9.3.

Does TC7SZ34F,LJ(CT) support 1.8 V logic operation?

Yes, TC7SZ34F,LJ(CT) fully supports 1.8 V operation: its supply voltage range is 1.65 V to 5.5 V, and AC characteristics-including 4.4 ns typical propagation delay at 1.8 V/15 pF-are explicitly specified in Section 9.4 of the datasheet. Input thresholds scale with VCC, ensuring reliable switching at 1.8 V.

Is TC7SZ34F,LJ(CT) pin-compatible with other TC7SZ-series buffers?

No-TC7SZ34F,LJ(CT) uses a 5-pin SOT-25 (SMV) package with pin 5 as NC. Other TC7SZ variants (e.g., inverters, dual gates) may share the same package but differ in pin function mapping. Pin compatibility must be verified per device-specific pin assignment diagrams; TC7SZ34F,LJ(CT) pinout is unique to its non-inverting buffer function.

What does "5.5 V tolerant inputs" mean for TC7SZ34F,LJ(CT)?

"5.5 V tolerant inputs" means the TC7SZ34F,LJ(CT) input pin (Pin 1) accepts voltages up to 5.5 V regardless of VCC value-even when VCC = 1.8 V-without damage or functional degradation. This is achieved via internal clamp structures and is validated per Absolute Maximum Ratings (Section 7) and Operating Ranges (Section 8).

How does TC7SZ34F,LJ(CT) handle power-down conditions?

TC7SZ34F,LJ(CT) provides 5.5 V power-down protection on its output (Pin 3): when VCC = 0 V, the output enters a high-impedance, clamped state that prevents back-driving into the device or connected circuitry. This behavior is documented in Feature (7) and Absolute Maximum Ratings (Section 7, IOFF parameter).

TC7SZ34F,LJ(CT Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: TC7SZ

Package/Case:: SC-74A, SOT-753

Packaging:: Tape & Reel (TR)

Product Status:: Active

Logic Type:: Buffer, Non-Inverting

Number of Elements:: 1

Number of Bits per Element:: 1

Input Type:: -

Output Type:: Push-Pull

Current - Output High, Low:: 32mA, 32mA

Voltage - Supply:: 1.65V ~ 5.5V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SMV

TC7SZ34F,LJ(CT FAQ

1.How can I place an order for TC7SZ34F,LJ(CT through Aetrix?

Please submit a Request for Quotation (RFQ) for TC7SZ34F,LJ(CT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TC7SZ34F,LJ(CT reliable?

The price and inventory of TC7SZ34F,LJ(CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7SZ34F,LJ(CT is usually 5 days.

3.What payment methods are accepted for TC7SZ34F,LJ(CT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7SZ34F,LJ(CT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TC7SZ34F,LJ(CT?

TC7SZ34F,LJ(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TC7SZ34F,LJ(CT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TC7SZ34F,LJ(CT?

For technical support, including TC7SZ34F,LJ(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7SZ34F,LJ(CT requirements.

6.How does Aetrix verify that TC7SZ34F,LJ(CT is sourced from the original manufacturer or authorized distributors?

All TC7SZ34F,LJ(CT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TC7SZ34F,LJ(CT meets industry standards.

7.What is the process for return or replacement of TC7SZ34F,LJ(CT?

All TC7SZ34F,LJ(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7SZ34F,LJ(CT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TC7SZ34F,LJ(CT part is unused and in its original packaging.

Return procedure for TC7SZ34F,LJ(CT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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