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Texas Instruments SN74LVC2G34DBVR
- Part No.:
- SN74LVC2G34DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
SN74LVC2G34DBVR.pdf
- Description:
- IC BUF NON-INVERT 5.5V SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC2G34DBVR from Texas Instruments is a dual non-inverting buffer gate IC designed for 1.65-V to 5.5-V VCC operation, performing Y = A logic with ±24-mA output drive at 3.3 V, 4.1-ns max propagation delay at 3.3 V, and Ioff support for partial-power-down applications. It serves as a level-translating buffer in portable audio interfaces and embedded control signal conditioning.
For engineers reviewing the SN74LVC2G34DBVR datasheet, SN74LVC2G34DBVR pinout, SN74LVC2G34DBVR application, or SN74LVC2G34DBVR equivalent, key selection criteria include 5.5-V tolerant inputs, NanoFree™ SOT-23 (DBV) package compatibility, Ioff-enabled live insertion capability, and guaranteed 24-mA drive strength at 3.3 V across –40°C to 125°C.
Technical Context
The SN74LVC2G34DBVR implements two independent CMOS buffer gates with identical input-to-output logic (Y = A), each featuring rail-to-rail output swing and full 5.5-V input tolerance regardless of VCC level. Its Ioff circuitry actively disables outputs when VCC = 0 V, blocking back-current flow during hot-swap or partial-power-down sequences.
This device operates across a wide voltage range (1.65–5.5 V), enabling bidirectional level translation - e.g., 5-V inputs translated down to 1.8-V or 3.3-V logic domains. It exhibits low dynamic power consumption (10 µA max ICC) and robust ESD protection (2500-V HBM, 1500-V CDM), meeting JESD78 Class II latch-up requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports mixed-voltage system interfacing and battery-powered operation down to single-cell Li-ion (≈2.7 V). |
| Max tpd | 4.1 ns at 3.3 V - enables reliable signal buffering up to ≈100 MHz clock/data rates in high-speed digital paths. |
| IOH/IOL | ±24 mA at 3.3 V - drives multiple standard CMOS loads or LEDs directly without external amplification. |
| Ioff | <±10 µA at VCC = 0 V - prevents damaging current backflow during live insertion or system power sequencing. |
| Input Voltage Tolerance | Up to 5.5 V independent of VCC - allows safe interfacing with higher-voltage controllers while powered from lower VCC. |
| ESD Rating | 2500-V HBM - meets industrial-grade handling requirements without additional board-level protection. |
| Operating Temperature | –40°C to +125°C - qualified for automotive under-hood and industrial control environments. |
Pinout & Package
SOT-23 (DBV) package: 6-pin surface-mount, 2.90 mm × 1.60 mm body size, 1.45 mm height, lead-free (NiPdAu/Sn), moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Input 1 | CMOS-compatible input accepting 0–5.5 V; internally tied to first buffer's input stage. |
| GND | Ground | Reference node for all logic thresholds and output drive; must be low-impedance connection. |
| 2A | Input 2 | Independent second buffer input; electrically isolated from Input 1 per functional block diagram. |
| 2Y | Output 2 | Non-inverting buffered replica of 2A; capable of sourcing/sinking ±24 mA at 3.3 V. |
| VCC | Power Supply | Single supply pin supporting 1.65–5.5 V; requires local 0.1-µF bypass capacitor adjacent to pin. |
| 1Y | Output 1 | Non-inverting buffered replica of 1A; shares same electrical specs and thermal limits as 2Y. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies itself forms the package - eliminates bond wires and mold compound, reducing parasitic inductance and enabling ultra-small footprint (2.90 × 1.60 mm). |
| Ioff partial-power-down | Automatically disables outputs when VCC = 0 V, allowing safe hot-plug into powered-backplane systems without risk of bus contention or damage. |
| 5.5-V tolerant inputs | Accepts input signals up to 5.5 V regardless of VCC setting - simplifies level-shifting between 5-V microcontrollers and 1.8/3.3-V FPGAs or ASICs. |
| Low ground bounce (VOLP) | <0.8 V typical at VCC = 3.3 V - minimizes noise coupling into shared ground planes during fast switching. |
| High-speed propagation | 1.4 ns min / 4.1 ns max tpd at 3.3 V - ensures timing integrity in data strobes, enable signals, and clock distribution paths. |
Applications
| Audio Signal Routing | Embedded Microcontroller Interface |
|---|---|
|
Use Scenario: Isolating and driving I²S data lines between a 5-V audio codec and a 3.3-V SoC in portable Bluetooth speakers. IC Role / Device Role / Timing Role: Dual buffer provides directionally transparent signal conditioning with matched propagation delay across both channels. Use Value: Eliminates need for discrete level-shifters while maintaining <4.1 ns skew between left/right channel paths. |
Use Scenario: Driving GPIO-controlled LED indicators and status flags on an industrial PLC module operating at 2.5 V. IC Role / Device Role / Timing Role: Buffer isolates MCU pins from LED load transients and provides 24-mA sink/source per output. Use Value: Enables direct LED drive without series resistors or external transistors, reducing BOM count and PCB area. |
| Hot-Swappable Module Control | SSD Power Sequencing Enable |
|
Use Scenario: Enabling/disabling power rails on PCIe add-in cards inserted into live servers using 12-V control signals. IC Role / Device Role / Timing Role: Acts as a translation and isolation buffer between host-side 12-V enable logic and 3.3-V PMIC control inputs. Use Value: Ioff prevents backfeed during card insertion/removal, satisfying PCIe hot-plug safety requirements. |
Use Scenario: Generating synchronized enable signals for multiple voltage rails (1.2 V, 1.8 V, 3.3 V) in client SSD power management circuits. IC Role / Device Role / Timing Role: Dual buffer distributes a single PMIC-ready signal to separate LDO enable inputs with matched delay. Use Value: Ensures monotonic power-up sequence across rails by eliminating skew-induced race conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual buffer gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G34DCKR | SC70-6 package (2.00 × 1.25 mm); 259°C/W RθJA; identical electrical specs and pinout mapping. | Better suited for space-constrained designs where footprint reduction outweighs thermal derating needs. | Select when board area is critical and ambient temperature remains ≤85°C; verify thermal margin for continuous 24-mA loads. |
| SN74AUP2G34DBVR | Lower IOH/IOL (±4 mA at 1.8 V); 1.2–3.6 V VCC range; 6.5 ns max tpd at 1.8 V; same SOT-23-6 package. | Optimized for ultra-low-power, sub-2-V battery systems where drive strength and speed are secondary to quiescent current. | Choose only for energy-sensitive applications requiring <0.5 µA ICC; not suitable as drop-in replacement for 24-mA drive or 5.5-V input tolerance. |
Compared with SN74LVC2G34DCKR, SN74LVC2G34DBVR offers superior thermal performance (165 vs. 259°C/W) and mechanical robustness in automated assembly; compared with SN74AUP2G34DBVR, it delivers 6× higher output drive and 5.5-V input tolerance at the cost of slightly higher static current.
Availability
SN74LVC2G34DBVR is available at Aetrix Electronics and suitable for portable audio interfaces, industrial PLC I/O modules, hot-swappable server add-in cards, and client SSD power sequencing requiring stable component supply and long-term manufacturability.
Supply support for SN74LVC2G34DBVR 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 specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and high-reliability logic solutions.
The SN74LVC2G34 belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for robust voltage translation, low-noise operation, and seamless integration into mixed-voltage digital systems from consumer to industrial applications.
FAQ
What is the maximum operating temperature for SN74LVC2G34DBVR?
The SN74LVC2G34DBVR is rated for operation from –40°C to +125°C ambient temperature, validated per its SOT-23 (DBV) package thermal characteristics and JEDEC qualification standards. This range applies specifically to the DBV variant and supports use in under-hood automotive and industrial control environments where thermal margins are critical.
Does SN74LVC2G34DBVR support level translation between 5-V and 3.3-V logic domains?
Yes, SN74LVC2G34DBVR supports down-translation: its inputs accept voltages up to 5.5 V regardless of VCC, allowing 5-V signals to safely drive the device while powered from 3.3 V. Outputs swing rail-to-rail between GND and VCC, producing clean 3.3-V logic levels - making SN74LVC2G34DBVR ideal for interfacing legacy 5-V peripherals with modern 3.3-V processors.
Can SN74LVC2G34DBVR be used in hot-swap applications?
Yes, SN74LVC2G34DBVR includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow during live insertion. This feature is explicitly verified in the datasheet and enables compliant implementation in PCIe hot-plug modules and modular server backplanes where SN74LVC2G34DBVR buffers enable/control signals.
What is the recommended bypass capacitor for SN74LVC2G34DBVR?
A 0.1-µF ceramic capacitor placed as close as possible to the VCC pin is recommended for SN74LVC2G34DBVR to suppress high-frequency supply noise and stabilize operation during fast output transitions. For systems with multiple logic devices sharing the same rail, parallel placement of a 1-µF bulk capacitor nearby further improves low-frequency decoupling - both values are specified in TI's Power Supply Recommendations section for SN74LVC2G34DBVR.
Is SN74LVC2G34DBVR pin-compatible with other packages in the SN74LVC2G34 family?
No - while SN74LVC2G34DBVR (SOT-23), SN74LVC2G34DCKR (SC70), and SN74LVC2G34DRLR (SOT-5X3) share identical pin functions and logic behavior, their physical pinouts differ due to distinct package footprints and pin 1 orientation. SN74LVC2G34DBVR uses SOT-23 pin 1 = 1A, whereas SC70 and SOT-5X3 variants assign pin 1 to different terminals; thus, SN74LVC2G34DBVR requires dedicated PCB layout and cannot be substituted without board revision.
SN74LVC2G34DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- 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-23-6
SN74LVC2G34DBVR FAQ
1.How can I place an order for SN74LVC2G34DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G34DBVR 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 SN74LVC2G34DBVR reliable?
The price and inventory of SN74LVC2G34DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G34DBVR is usually 5 days.
3.What payment methods are accepted for SN74LVC2G34DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G34DBVR transactions.
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4.How is shipping managed for SN74LVC2G34DBVR?
SN74LVC2G34DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G34DBVR 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 SN74LVC2G34DBVR?
For technical support, including SN74LVC2G34DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G34DBVR requirements.
6.How does Aetrix verify that SN74LVC2G34DBVR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G34DBVR 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 SN74LVC2G34DBVR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G34DBVR?
All SN74LVC2G34DBVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G34DBVR, 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 SN74LVC2G34DBVR part is unused and in its original packaging.
Return procedure for SN74LVC2G34DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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