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Texas Instruments SN74LVC2G34DBVT
- Part No.:
- SN74LVC2G34DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
SN74LVC2G34DBVT.pdf
- Description:
- IC BUF NON-INVERT 5.5V SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC2G34DBVT 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 live insertion and partial-power-down applications. It serves as a level-translating buffer in portable audio interfaces and embedded control signal conditioning.
For engineers reviewing the SN74LVC2G34DBVT datasheet, SN74LVC2G34DBVT pinout, SN74LVC2G34DBVT application, or SN74LVC2G34DBVT equivalent, key selection criteria include 5.5-V tolerant inputs, NanoFree™ SOT-23 (DBV) package compatibility, Ioff protection for back-drive scenarios, and guaranteed operation across –40°C to +125°C.
Technical Context
The SN74LVC2G34DBVT implements two independent CMOS buffer gates with rail-to-rail output swing and balanced rise/fall times. Its Ioff circuitry actively disables outputs when VCC = 0 V, blocking current flow from powered inputs into unpowered devices.
Input voltage tolerance up to 5.5 V enables down-translation from higher-voltage domains (e.g., 5-V logic) to lower VCC rails (e.g., 1.8 V or 3.3 V), while ESD ratings of 2500-V HBM and 1500-V CDM meet industrial robustness 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. |
| Max tpd | 4.1 ns at 3.3 V - enables reliable signal buffering in high-speed digital paths up to ~100 MHz. |
| IOH/IOL | ±24 mA at 3.3 V - drives multiple standard CMOS loads or small LEDs without external amplification. |
| Ioff | ±10 µA max - prevents damaging back-current during hot-swap or partial power-down sequences. |
| Input Voltage Tolerance | 0 V to 5.5 V - allows direct connection to 5-V sources even when VCC is 1.8 V or 2.5 V. |
| Operating Temperature | –40°C to +125°C - qualified for automotive under-hood and industrial control environments. |
| ESD Rating | 2500-V HBM - exceeds JEDEC JS-001 Class 2, reducing risk of field failure in handling and assembly. |
Pinout & Package
SOT-23 (DBV) package, 2.90 mm × 1.60 mm body size, 6-pin surface-mount with exposed pad not present; RoHS-compliant, NIPDAU/SN lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Buffer Input 1 | CMOS-compatible input accepting 0–5.5 V; tied to VCC or GND if unused to prevent floating states. |
| 1Y | Buffer Output 1 | Non-inverting output with ±24-mA drive capability; requires controlled impedance routing for fast edges. |
| 2A | Buffer Input 2 | Independent second input identical to 1A; supports dual-channel signal conditioning in compact layout. |
| 2Y | Buffer Output 2 | Second buffered output; may be used for clock fanout, data line isolation, or LED anode drive. |
| GND | Ground Reference | Primary return path for all internal currents; must connect to low-impedance system ground plane. |
| VCC | Power Supply | Single supply pin supporting 1.65–5.5 V; requires local 0.1-µF bypass capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-package construction 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, preventing reverse current flow during hot-plug or system sleep modes. |
| 5.5-V tolerant inputs | Accepts input signals up to 5.5 V regardless of VCC level - simplifies level-shifting between legacy 5-V and modern low-voltage subsystems. |
| Low dynamic power | 10-µA max ICC at standby - minimizes quiescent current in always-on sensor or control interfaces. |
| High noise immunity | VIL ≤ 0.3×VCC, VIH ≥ 0.7×VCC - ensures robust logic-level recognition across full VCC range and temperature. |
Applications
| Portable Audio Signal Routing | Industrial Sensor Interface Conditioning |
|---|---|
|
Use Scenario: Isolating and driving I²S or PCM audio data lines between codec and microcontroller in MP3 players or wireless headsets. IC Role / Device Role: Dual buffer providing signal integrity preservation, drive strength boost, and voltage domain bridging (e.g., 5-V DAC output to 3.3-V MCU input). Use Value: Eliminates need for discrete level shifters; ±24-mA drive sustains signal integrity over 10-cm PCB traces at 10-MHz data rates. |
Use Scenario: Buffering analog sensor excitation signals or digital status flags in programmable logic controllers and motor drives. IC Role / Device Role: Signal repeater ensuring clean TTL/CMOS-compatible levels across noisy industrial backplanes or long cable runs. Use Value: Ioff protection prevents latch-up during controller firmware updates; 125°C rating supports operation near power electronics. |
| Embedded PC Power Sequencing Control | SSD Host Interface Signal Integrity |
|
Use Scenario: Enabling/disabling voltage rails or reset signals during boot sequence in solid-state storage controllers and mini-PCs. IC Role / Device Role: Glue logic buffer translating enable signals between different power domains (e.g., 5-V PMIC control to 1.8-V SoC GPIO). Use Value: 5.5-V input tolerance allows direct connection to PMIC outputs; fast 4.1-ns tpd ensures precise timing alignment in multi-rail sequencing. |
Use Scenario: Strengthening SATA or PCIe reference clock distribution or sideband signal lines in client SSD modules. IC Role / Device Role: Low-skew buffer isolating host controller clock outputs from variable capacitive loads of NAND packages. Use Value: Nanosecond-level propagation matching preserves jitter budget; NanoFree™ package reduces board space by >30% vs. standard SOT-23. |
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); identical electrical specs but 36% smaller footprint and higher thermal resistance (259°C/W vs. 165°C/W). | Better suited for ultra-dense portable designs where board area is constrained more than thermal margin. | Select DCKR only if layout space is critical and ambient temperature remains below 85°C. |
| SN74AUP2G34DBVR | Lower VCC range (0.8–3.6 V); 2.7-ns tpd at 3.3 V; 4-mA drive; optimized for ultra-low-power sub-1-V systems. | Targets battery-operated IoT sensors and wearables requiring <1-µA ICC, not high-drive or 5-V tolerant use cases. | Choose AUP variant only for energy-constrained applications where 24-mA drive and 5.5-V tolerance are unnecessary. |
Compared with SN74LVC2G34DCKR and SN74AUP2G34DBVR, the SN74LVC2G34DBVT delivers optimal balance of drive strength, voltage flexibility, and thermal performance in standard SOT-23 layouts-making it the default choice for industrial and consumer signal buffering where reliability and interoperability are prioritized over minimal size or lowest static power.
Availability
SN74LVC2G34DBVT is available at Aetrix Electronics and suitable for portable audio, industrial sensor interface, embedded PC power sequencing, and SSD host interface applications requiring stable component supply, extended temperature operation, and long-term manufacturing continuity.
Supply support for SN74LVC2G34DBVT 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 leader delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and broad design support infrastructure.
The SN74LVC2G34DBVT belongs to TI's LVC logic family, engineered for low-voltage, high-speed, mixed-signal interfacing in portable, industrial, and computing systems where robustness and voltage translation are essential.
FAQ
What is the maximum operating temperature for SN74LVC2G34DBVT?
The SN74LVC2G34DBVT is rated for operation from –40°C to +125°C, validated per its DBV package specification and JEDEC qualification. This range applies to continuous operation under recommended conditions, including VCC = 1.65 V to 5.5 V and load currents within ±24 mA per output. The device maintains full parametric compliance across this range, making SN74LVC2G34DBVT suitable for under-hood automotive and industrial control applications.
Does SN74LVC2G34DBVT support level translation between different voltage domains?
Yes, SN74LVC2G34DBVT supports down-translation: its inputs tolerate voltages up to 5.5 V regardless of VCC level, allowing connection to 5-V sources while operating at 1.8 V, 2.5 V, or 3.3 V. The outputs swing rail-to-rail (0 V to VCC), so SN74LVC2G34DBVT translates high-voltage inputs to the local VCC domain without external components - confirmed in Section 8.3 and Figure 3 of the SCES359J datasheet.
What is the purpose of the Ioff feature in SN74LVC2G34DBVT?
The Ioff feature in SN74LVC2G34DBVT disables output drivers when VCC = 0 V, preventing current backflow from powered inputs into an unpowered device. This protects against damage during live insertion, partial power-down, or system sleep states. Measured at ±10 µA max, Ioff is integral to SN74LVC2G34DBVT's compliance with JESD78 Class II latch-up immunity and enables safe use in hot-swap-capable systems.
Can SN74LVC2G34DBVT drive LEDs directly?
Yes, SN74LVC2G34DBVT can drive small indicator LEDs directly: at VCC = 3.3 V, it delivers ±24 mA per output - sufficient for typical 2–20 mA LEDs. Use a series resistor to limit current (e.g., 100 Ω for ~23 mA at 3.3 V). Avoid sustained DC drive above 20 mA to maintain reliability; SN74LVC2G34DBVT's VOL and VOH specs ensure proper LED on/off thresholds across temperature.
Is SN74LVC2G34DBVT pin-compatible with other variants in the SN74LVC2G34 family?
Yes, SN74LVC2G34DBVT shares identical pinout (1A, 1Y, 2A, 2Y, GND, VCC) with all SOT-23-packaged variants (e.g., SN74LVC2G34DBVR, SN74LVC2G34DBVRG4). Mechanical drawings confirm identical DBV footprint and terminal numbering. However, SC70 (DCK), SOT-5X3 (DRL), and DSBGA (YZP) variants use different land patterns and are not physically interchangeable - only DBV-series parts are drop-in replacements for SN74LVC2G34DBVT.
SN74LVC2G34DBVT 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
SN74LVC2G34DBVT FAQ
1.How can I place an order for SN74LVC2G34DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G34DBVT 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 SN74LVC2G34DBVT reliable?
The price and inventory of SN74LVC2G34DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G34DBVT is usually 5 days.
3.What payment methods are accepted for SN74LVC2G34DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G34DBVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G34DBVT?
SN74LVC2G34DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G34DBVT 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 SN74LVC2G34DBVT?
For technical support, including SN74LVC2G34DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G34DBVT requirements.
6.How does Aetrix verify that SN74LVC2G34DBVT is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G34DBVT 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 SN74LVC2G34DBVT meets industry standards.
7.What is the process for return or replacement of SN74LVC2G34DBVT?
All SN74LVC2G34DBVT units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G34DBVT, 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 SN74LVC2G34DBVT part is unused and in its original packaging.
Return procedure for SN74LVC2G34DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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