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Texas Instruments SN74LVC2G34DBVRE4
- Part No.:
- SN74LVC2G34DBVRE4
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
SN74LVC2G34DBVRE4.pdf
- Description:
- IC BUF NON-INVERT 5.5V SOT23-6
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC2G34DBVRE4 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 on two independent channels. It delivers ±24-mA output drive at 3.3 V, achieves 4.1 ns max propagation delay at 3.3 V, and supports 5.5-V tolerant inputs - enabling level translation in portable audio, SSD, and embedded PC signal routing.
For engineers reviewing the SN74LVC2G34DBVRE4 datasheet, SN74LVC2G34DBVRE4 pinout, SN74LVC2G34DBVRE4 application, or SN74LVC2G34DBVRE4 equivalent, key selection criteria include Ioff-enabled partial-power-down capability, NanoFree™ SOT-23 package footprint, 1.65–5.5 V supply flexibility, and verified 24-mA drive strength at 3.3 V for LED and bus-buffering use cases.
Technical Context
The SN74LVC2G34DBVRE4 implements two independent CMOS buffer gates with identical input-to-output logic (Y = A), each featuring rail-to-rail output swing and symmetric rise/fall times. Its Ioff circuitry actively disables outputs when VCC = 0 V, blocking back-current flow and supporting live insertion in hot-swap systems.
Input voltage tolerance up to 5.5 V - regardless of VCC level - allows down-translation from higher-voltage domains (e.g., 5-V microcontroller I/O) to lower-voltage logic rails (e.g., 1.8-V or 3.3-V FPGAs). The device operates across –40°C to +125°C and exhibits <0.8 V typical ground bounce (VOLP) at 3.3 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - enables single-supply interoperability across 1.8-V, 2.5-V, 3.3-V, and 5-V logic families. |
| Max tpd | 4.1 ns at 3.3 V - supports clean signal buffering up to ~100 MHz clock/data rates in timing-critical paths. |
| IOH/IOL | ±24 mA at 3.3 V - drives multiple standard CMOS loads or low-current LEDs without external amplification. |
| Ioff | <±10 µA - prevents damaging current backflow during power sequencing or partial system shutdown. |
| Input Tolerance | 0 V to 5.5 V - permits direct connection to 5-V sources while powered from 1.8-V or 2.5-V rails. |
| ESD Rating | 2500 V HBM - meets industrial-grade robustness requirements for handling and board-level integration. |
| Operating Temp | –40°C to +125°C - qualified for automotive under-hood, telecom, and industrial embedded environments. |
Pinout & Package
SOT-23 (DBV) package: 2.90 mm × 1.60 mm body, 6-pin surface-mount, lead-free (NiPdAu), moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Input 1 | Primary logic input for Buffer 1; accepts 0–5.5 V regardless of VCC value. |
| 1Y | Output 1 | Non-inverting buffered output for Channel 1; rail-to-rail swing, ±24-mA drive capability. |
| 2A | Input 2 | Primary logic input for Buffer 2; electrically isolated from Channel 1, same voltage tolerance. |
| 2Y | Output 2 | Non-inverting buffered output for Channel 2; independently driven, no crosstalk with Channel 1. |
| GND | Ground | Reference return path for all internal circuitry and I/O; must be low-impedance for noise control. |
| VCC | Supply | Single power rail (1.65–5.5 V); powers both buffers and enables Ioff functionality when de-energized. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies itself serves as the package - eliminates bond wires and mold compound, reducing parasitic inductance and footprint by >50% vs. standard SOT-23. |
| Ioff partial-power-down | Outputs enter high-impedance state with <±10 µA leakage when VCC = 0 V - essential for back-drive protection in modular systems. |
| 5.5-V tolerant inputs | Accepts logic-high signals up to 5.5 V while operating from as low as 1.65 V - enables seamless voltage-domain bridging without external translators. |
| Low dynamic power | 10 µA max ICC at standby - reduces quiescent current in always-on subsystems such as USB-C PD controllers or sensor hubs. |
| High-speed performance | 4.1 ns max tpd at 3.3 V with 30-pF load - maintains signal integrity in DDR clock distribution, display interface, and audio data paths. |
Applications
| Audio Signal Routing | SSD Interface Buffering |
|---|---|
|
Use Scenario: Isolating and strengthening I²S or SPDIF digital audio signals between codec and DAC in portable audio docks or Bluetooth headsets. IC Role / Device Role / Timing Role: Dual-channel non-inverting buffer providing gain-of-1 signal integrity restoration and 24-mA drive to overcome PCB trace capacitance. Use Value: Eliminates need for discrete transistor buffers; 4.1 ns tpd preserves jitter margins below 10 ps RMS in 192-kHz audio streams. |
Use Scenario: Driving command/address lines from host controller to NAND flash arrays in client SSDs with mixed 1.8-V/3.3-V signaling domains. IC Role / Device Role / Timing Role: Level-translating buffer translating 3.3-V host outputs to 1.8-V NAND inputs while maintaining setup/hold timing. Use Value: 5.5-V tolerant inputs accept 3.3-V logic; Ioff prevents data corruption during SSD sleep-state transitions. |
| Embedded PC I/O Expansion | Industrial Sensor Hub Interface |
|
Use Scenario: Extending GPIO count from SoC to peripheral modules (e.g., fan control, status LEDs, thermal sensors) in fanless embedded PCs. IC Role / Device Role / Timing Role: Dual buffer isolating SoC pins from noisy loads; each channel drives one LED or open-drain pull-up network. Use Value: ±24-mA drive directly lights indicator LEDs; NanoFree™ footprint saves space on dense motherboard layouts. |
Use Scenario: Conditioning analog sensor outputs (e.g., temperature, humidity) before ADC sampling in programmable logic controllers. IC Role / Device Role / Timing Role: Input buffer protecting precision ADC reference paths from ESD and switching noise on shared PCB traces. Use Value: 2500-V HBM rating withstands field-induced discharges; low 3.5-pF input capacitance minimizes signal loading on high-Z sensor nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G34DCKRE4 | SC70-6 package (2.00 mm × 1.25 mm); 259°C/W θJA; identical electrical specs. | Better suited for ultra-dense layouts where 0.65-mm height or smaller footprint is critical. | Select when board area is constrained and thermal dissipation ≤150 mW is acceptable. |
| SN74AUP2G34DBVR | Lower VCC range (0.8–3.6 V); 1.8-V optimized; 3.7 ns tpd at 1.8 V; 4-µA ICC. | Targeted for battery-powered IoT nodes requiring sub-1-V operation and ultra-low static power. | Choose only if system operates below 1.65 V or demands <5-µA quiescent current - not drop-in compatible above 3.6 V. |
Compared with SN74LVC2G34DCKRE4, SN74LVC2G34DBVRE4 offers superior thermal performance (165°C/W vs. 259°C/W) in the same functional role; versus SN74AUP2G34DBVR, it trades lower static power for broader voltage interoperability - making it the preferred choice for multi-rail industrial and consumer designs.
Availability
SN74LVC2G34DBVRE4 is available at Aetrix Electronics and suitable for portable audio docks, client SSDs, and embedded PCs requiring stable component supply, long-term lifecycle support, and RoHS-compliant SOT-23 packaging.
Supply support for SN74LVC2G34DBVRE4 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 specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in high-reliability silicon design.
The SN74LVC2G34 belongs to TI's LVC logic family - engineered for wide-voltage operation, robust ESD immunity, and compatibility across legacy and next-generation digital systems in consumer, industrial, and communications markets.
FAQ
What is the maximum operating temperature for SN74LVC2G34DBVRE4?
The SN74LVC2G34DBVRE4 is rated for operation from –40°C to +125°C ambient temperature. This extended range is validated per JEDEC JESD22-A108 and applies specifically to the DBV (SOT-23) package variant. Thermal derating is not required within this range when used with recommended PCB copper pour and airflow conditions. The SN74LVC2G34DBVRE4 maintains full electrical specifications across this span, including tpd, IOH/IOL, and Ioff performance.
Does SN74LVC2G34DBVRE4 support level translation between different voltage domains?
Yes, the SN74LVC2G34DBVRE4 supports down-translation: its inputs tolerate voltages up to 5.5 V independent of VCC, allowing connection to 5-V or 3.3-V sources while operating from 1.65-V to 3.3-V supplies. For example, a 5-V microcontroller GPIO can drive SN74LVC2G34DBVRE4 input 1A while VCC = 1.8 V, and output 1Y will swing rail-to-rail between 0 V and 1.8 V. This function is explicitly documented in Section 8.3 of the SCES359J datasheet.
What is the purpose of the Ioff feature in SN74LVC2G34DBVRE4?
The Ioff feature in SN74LVC2G34DBVRE4 disables output drivers when VCC = 0 V, limiting I/O leakage to <±10 µA. This prevents damaging current backflow from live system buses into a powered-down section - critical for hot-plug modules, partial-power-down states in SSDs, and modular telecom line cards. The SN74LVC2G34DBVRE4 implements this via internal circuitry that isolates inputs and outputs during VCC ramp-down, satisfying JESD78 Class II latch-up immunity.
Can SN74LVC2G34DBVRE4 drive LEDs directly?
Yes, SN74LVC2G34DBVRE4 can drive standard indicator LEDs directly: at VCC = 3.3 V, it delivers 24 mA sink/source per output, sufficient for common 2–20 mA LEDs. For a typical red LED (VF ≈ 1.8 V), a 62-Ω series resistor limits current to ~24 mA. The SN74LVC2G34DBVRE4's low VOL (~0.55 V at 24 mA) ensures adequate forward bias, and its 4.1 ns tpd supports PWM dimming up to 100 kHz without visible flicker.
Is SN74LVC2G34DBVRE4 pin-compatible with other variants in the SN74LVC2G34 family?
Yes, SN74LVC2G34DBVRE4 shares identical pinout (1A, 1Y, GND, 2Y, VCC, 2A) with all SOT-23-packaged variants (e.g., SN74LVC2G34DBVR, SN74LVC2G34DBVT) and is functionally interchangeable. However, it is not pin-compatible with SC70 (DCK), SOT-5X3 (DRL), or DSBGA (YZP) variants due to differing pad layouts and terminal assignments - those require PCB redesign. The SN74LVC2G34DBVRE4 marking "C34F" or "C34R" confirms DBV-package compliance per TI's orderable addendum.
SN74LVC2G34DBVRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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
SN74LVC2G34DBVRE4 FAQ
1.How can I place an order for SN74LVC2G34DBVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G34DBVRE4 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 SN74LVC2G34DBVRE4 reliable?
The price and inventory of SN74LVC2G34DBVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G34DBVRE4 is usually 5 days.
3.What payment methods are accepted for SN74LVC2G34DBVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G34DBVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G34DBVRE4?
SN74LVC2G34DBVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G34DBVRE4 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 SN74LVC2G34DBVRE4?
For technical support, including SN74LVC2G34DBVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G34DBVRE4 requirements.
6.How does Aetrix verify that SN74LVC2G34DBVRE4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G34DBVRE4 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 SN74LVC2G34DBVRE4 meets industry standards.
7.What is the process for return or replacement of SN74LVC2G34DBVRE4?
All SN74LVC2G34DBVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G34DBVRE4, 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 SN74LVC2G34DBVRE4 part is unused and in its original packaging.
Return procedure for SN74LVC2G34DBVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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