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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments SN74LVC1G34DBVTE4

Name: SN74LVC1G34DBVTE4
Brand: Texas Instruments
SKU: SN74LVC1G34DBVTE4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVC1G34DBVTE4

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: SC-74A, SOT-753

Datasheet:: SN74LVC1G34DBVTE4.pdf

Description:: IC BUF NON-INVERT 5.5V SOT23-5

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Product details

Overview

SN74LVC1G34 from Texas Instruments is a single non-inverting CMOS buffer gate designed for 1.65V to 5.5V V_CC operation, delivering ±24mA output drive at 3.3V, 3.5ns max propagation delay (t_pd) at 3.3V/CL=15pF, and I_off support for live insertion and partial power-down. It serves as a level-translating signal buffer in portable audio interfaces and SSD control paths.

For engineers reviewing the SN74LVC1G34 datasheet, SN74LVC1G34 pinout, SN74LVC1G34 application, or SN74LVC1G34 equivalent, key selection criteria include its 5-pin SOT-23 (DBV) package, 1.65–5.5V supply flexibility, input tolerance up to 5.5V, down-translation capability, and robust ESD protection (2kV HBM).

Technical Context

The SN74LVC1G34 implements a simple positive-logic Boolean function Y = A with no internal inversion or enable logic. Its CMOS architecture enables rail-to-rail output swing, low static ICC (≤10μA), and high-speed switching across 1.65–5.5V V_CC, supporting mixed-voltage system interfacing.

It features I_off circuitry that disables outputs during power-down to prevent back-drive current, and supports 5.5V-tolerant inputs regardless of V_CC - enabling safe connection to higher-voltage controllers while driving lower-voltage loads.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65V to 5.5V - supports direct interface between 1.8V, 2.5V, 3.3V, and 5V logic domains
t_pd (max)	3.5ns at 3.3V/CL=15pF - enables reliable operation in ≤100MHz digital signal paths
I_OH/I_OL	±24mA at 3.3V - sufficient to directly drive LEDs, multiple CMOS inputs, or small capacitive loads
I_off	±10μA max - ensures isolation during partial power-down without external pull resistors
Input Voltage Tolerance	Up to 5.5V independent of V_CC - allows safe connection to 5V microcontrollers even when V_CC = 1.8V
ESD Protection	2kV HBM - meets industrial-level robustness requirements without added protection circuitry
Operating Temperature	–40°C to 125°C (DBV package) - qualified for automotive under-hood and industrial embedded use

Pinout & Package

The SN74LVC1G34 DBV package is a 5-pin SOT-23 surface-mount device with 2.90mm × 2.80mm body size and gull-wing leads.

Pin/Terminal	Circuit Role	Design Meaning
1	No internal connection (N.C.)	Unused pad - must be left floating or grounded per layout best practice; no electrical function
2	Input (A)	Single logic input accepting 0–5.5V; compatible with TTL and CMOS voltage thresholds across full V_CC range
3	GND	Power return reference; must be low-impedance connection to minimize noise coupling and ensure VOL stability
4	Output (Y)	Non-inverting buffered output; drives loads up to ±24mA with rail-to-rail swing referenced to V_CC and GND
5	V_CC	Positive supply pin; bypass capacitor (0.1μF) required adjacent to pin to suppress switching transients

Key Features

Feature	Design Value
5V-tolerant inputs	Accepts 0–5.5V signals regardless of V_CC setting - eliminates need for external level shifters in mixed-supply systems
I_off partial power-down	Automatically disables outputs when V_CC = 0V - prevents back-current flow during hot-swap or power sequencing
Ultra-low ICC	≤10μA max supply current - suitable for battery-powered devices requiring microamp-level standby consumption
High output drive	±24mA at 3.3V - enables direct LED driving or fan-out to ≥10 standard CMOS loads without buffering
Wide temperature range	Rated for –40°C to +125°C operation in DBV package - supports automotive and industrial thermal environments

Applications

AV Receiver Signal Routing	Portable Audio Dock Interface
Use Scenario: Buffering HDMI CEC or SPDIF control signals between SoC and peripheral ICs in compact AV receivers. IC Role / Device Role / Timing Role: Non-inverting signal repeater ensuring signal integrity across PCB traces with minimal skew and loading. Use Value: Maintains timing margins under 3.3V/5V mixed-supply conditions while tolerating 5.5V control pulses from legacy sources.	Use Scenario: Level-shifting and driving USB enumeration or audio codec control lines in portable audio docks. IC Role / Device Role / Timing Role: Voltage translator and driver for I²C/SPI control buses connecting host MCU to accessory ICs. Use Value: Eliminates discrete resistor networks by accepting 5V USB ID detection signals while operating from 1.8V or 3.3V rails.
Solid State Drive (SSD) Power Sequencing	Embedded PC Fan Control Interface
Use Scenario: Enabling/disabling PMIC enable signals or voltage supervisor outputs during SSD power-up/down sequences. IC Role / Device Role / Timing Role: Glue logic buffer isolating sequencer outputs from downstream regulators with I_off-enabled safety. Use Value: Prevents back-driving into powered-down PMIC sections during staggered power sequencing - critical for JEDEC-compliant SSD designs.	Use Scenario: Driving PWM fan control inputs from low-voltage embedded controller outputs in space-constrained industrial PCs. IC Role / Device Role / Timing Role: High-drive buffer translating 1.8V PWM signals to 5V-compatible fan inputs with fast edge rates. Use Value: Delivers 24mA sink/source capability and <3.5ns t_pd to preserve PWM duty cycle fidelity at 25kHz+ frequencies.

AV Receiver Signal Routing

Portable Audio Dock Interface

Use Scenario: Buffering HDMI CEC or SPDIF control signals between SoC and peripheral ICs in compact AV receivers.

IC Role / Device Role / Timing Role: Non-inverting signal repeater ensuring signal integrity across PCB traces with minimal skew and loading.

Use Value: Maintains timing margins under 3.3V/5V mixed-supply conditions while tolerating 5.5V control pulses from legacy sources.

Use Scenario: Level-shifting and driving USB enumeration or audio codec control lines in portable audio docks.

IC Role / Device Role / Timing Role: Voltage translator and driver for I²C/SPI control buses connecting host MCU to accessory ICs.

Use Value: Eliminates discrete resistor networks by accepting 5V USB ID detection signals while operating from 1.8V or 3.3V rails.

Solid State Drive (SSD) Power Sequencing

Embedded PC Fan Control Interface

Use Scenario: Enabling/disabling PMIC enable signals or voltage supervisor outputs during SSD power-up/down sequences.

IC Role / Device Role / Timing Role: Glue logic buffer isolating sequencer outputs from downstream regulators with I_off-enabled safety.

Use Value: Prevents back-driving into powered-down PMIC sections during staggered power sequencing - critical for JEDEC-compliant SSD designs.

Use Scenario: Driving PWM fan control inputs from low-voltage embedded controller outputs in space-constrained industrial PCs.

IC Role / Device Role / Timing Role: High-drive buffer translating 1.8V PWM signals to 5V-compatible fan inputs with fast edge rates.

Use Value: Delivers 24mA sink/source capability and <3.5ns t_pd to preserve PWM duty cycle fidelity at 25kHz+ frequencies.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
74LVC1G17GW	Schmitt-trigger input (hysteresis), same DBV package and V_CC range; t_pd = 4.5ns max at 3.3V	Better noise immunity on slow or noisy inputs; unsuitable where linear threshold behavior is required	Select 74LVC1G17GW only when input signal edges are slow or subject to EMI; otherwise SN74LVC1G34 provides tighter timing control.
NC7SZ17P5X	Same Schmitt-trigger function; smaller SC70-5 package (2.0mm × 2.1mm); t_pd = 4.5ns max at 3.3V; ICC ≤ 1μA	Higher board density but reduced thermal mass; lower drive (±8mA at 3.3V) limits fan-out capability	Choose NC7SZ17P5X for ultra-compact layouts where drive demand is ≤8mA and Schmitt input is acceptable.

Compared with 74LVC1G17GW and NC7SZ17P5X, the SN74LVC1G34 offers superior speed (3.5ns vs. 4.5ns), higher output drive (±24mA vs. ±8mA), and non-Schmitt input behavior - making it optimal for precise timing-critical buffering rather than noise-prone signal conditioning.

Availability

SN74LVC1G34 is available at Aetrix Electronics and suitable for portable audio docks, SSD power management, and embedded PC fan control requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for SN74LVC1G34 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

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and consumer markets.

The SN74LVC1G34 belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for low-power, high-speed interfacing across mixed-voltage systems in portable and space-constrained applications.

FAQ

What is the maximum operating temperature for the SN74LVC1G34 in the DBV package?

The SN74LVC1G34 in the DBV (SOT-23) package is rated for operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD78 latch-up testing and thermal characterization data, making SN74LVC1G34 suitable for under-hood automotive and industrial control applications where thermal stress exceeds standard commercial limits.

Does the SN74LVC1G34 support level translation between different supply voltages?

Yes, the SN74LVC1G34 supports bidirectional level translation: its inputs tolerate up to 5.5V regardless of V_CC, and its outputs swing rail-to-rail between GND and V_CC. For example, with V_CC = 1.8V, it accepts 5V input signals and outputs 0–1.8V - enabling SN74LVC1G34 to bridge 5V microcontrollers to 1.8V FPGAs without external components.

Can the SN74LVC1G34 drive an LED directly?

Yes, the SN74LVC1G34 can drive an LED directly when configured as a low-side switch: connect the LED anode to V_CC, cathode to SN74LVC1G34 output (pin 4), and set input (pin 2) HIGH to sink up to 24mA at 3.3V. Ensure current-limiting resistance is omitted only if LED forward voltage and V_CC yield ≤24mA - otherwise add series resistance to avoid exceeding I_OL rating.

Is the NC (pin 1) on the SN74LVC1G34 DBV package required to be connected?

No, pin 1 of the SN74LVC1G34 DBV package is a no-connect (N.C.) terminal with no internal bond wire or silicon connection. TI's datasheet specifies it may be left floating or tied to GND for mechanical stability - but it must never be connected to V_CC or driven, as this violates absolute maximum ratings and risks latent damage.

What decoupling capacitance is recommended for the SN74LVC1G34 DBV package?

A 0.1μF ceramic capacitor placed as close as possible between V_CC (pin 5) and GND (pin 3) is the minimum recommended decoupling for SN74LVC1G34. For systems with high-frequency noise or multiple switching gates, TI recommends paralleling with a 1μF capacitor - both mounted within 2mm of the pins using short, wide traces to maintain low ESL and ensure stable V_CC during output transitions.

SN74LVC1G34DBVTE4 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVC

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

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

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 ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-5

SN74LVC1G34DBVTE4 FAQ

1.How can I place an order for SN74LVC1G34DBVTE4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVC1G34DBVTE4 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 SN74LVC1G34DBVTE4 reliable?

The price and inventory of SN74LVC1G34DBVTE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G34DBVTE4 is usually 5 days.

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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC1G34DBVTE4 transactions.

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SN74LVC1G34DBVTE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVC1G34DBVTE4 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 SN74LVC1G34DBVTE4?

For technical support, including SN74LVC1G34DBVTE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G34DBVTE4 requirements.

6.How does Aetrix verify that SN74LVC1G34DBVTE4 is sourced from the original manufacturer or authorized distributors?

All SN74LVC1G34DBVTE4 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 SN74LVC1G34DBVTE4 meets industry standards.

7.What is the process for return or replacement of SN74LVC1G34DBVTE4?

All SN74LVC1G34DBVTE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G34DBVTE4, 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 SN74LVC1G34DBVTE4 part is unused and in its original packaging.

Return procedure for SN74LVC1G34DBVTE4:

1.Submit a request within 90 days.

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

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