Texas Instruments SN74LVC2G34DRLR
- Part No.:
- SN74LVC2G34DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
SN74LVC2G34DRLR.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 6SOT
- Quantity:
- Payment:

- Shipping:

Inventory:19,476
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Product details
Overview
SN74LVC2G34DRLR 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 SN74LVC2G34DRLR datasheet, SN74LVC2G34DRLR pinout, SN74LVC2G34DRLR application, or SN74LVC2G34DRLR equivalent, key selection criteria include 5.5-V tolerant inputs, NanoFree™ SOT-5X3 package (1.60 mm × 1.20 mm), Ioff-enabled live insertion capability, and guaranteed 10-µA max ICC across full VCC range.
Technical Context
The SN74LVC2G34DRLR implements two independent CMOS buffer gates with identical input-to-output mapping (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 from powered inputs or outputs into the unpowered device.
This device supports voltage translation from 5.5-V inputs down to the applied VCC level (1.65–5.5 V), enabling interoperability between mixed-voltage subsystems. Input transition rate is specified at 10 ns/V at 3.3 V, and output ground bounce (VOLP) is limited to <0.8 V under switching conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables direct interface with 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains without external level shifters. |
| Max tpd | 4.1 ns at 3.3 V - Supports signal integrity in high-speed digital paths up to ~100 MHz clock-equivalent operation. |
| IOH/IOL | ±24 mA at 3.3 V - Drives multiple standard CMOS loads or LEDs directly without external amplification. |
| Ioff | ±10 µA max - Ensures safe hot-plug operation and prevents damage during partial power-down sequences. |
| Input Voltage Tolerance | Up to 5.5 V - Allows 5-V signals to be safely applied while VCC operates at lower voltages (e.g., 1.8 V or 2.5 V). |
| Power Consumption | 10 µA max ICC - Minimizes quiescent current in battery-powered portable systems and always-on monitoring circuits. |
Pinout & Package
SOT-5X3 (DRL) package: ultra-compact 6-pin surface-mount outline measuring 1.60 mm × 1.20 mm, optimized for space-constrained portable electronics. Features exposed pad for thermal enhancement and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Buffer Input 1 | CMOS-compatible input accepting 0–5.5 V; enables voltage translation when VCC < 5.5 V. |
| GND | Ground Reference | Primary return path for all internal logic and output currents; must be low-impedance for noise immunity. |
| 2A | Buffer Input 2 | Independent second input channel; electrically isolated from 1A but shares same VCC/GND rails. |
| 2Y | Buffer Output 2 | Inverted-phase output relative to 2A; delivers full rail-to-rail swing and ±24-mA drive capability. |
| VCC | Supply Voltage | Single supply pin powering both buffers; bypass capacitor required within 2 mm for stable high-speed operation. |
| 1Y | Buffer Output 1 | Non-inverting output mirroring 1A state; matches 2Y in timing, drive strength, and voltage compliance. |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ Packaging | Dies-as-package construction eliminates leadframe; reduces footprint by 50% vs. SOT-23 and improves thermal resistance (RθJA = 142°C/W). |
| Ioff Protection | Automatically disables outputs during VCC ramp-down or loss, preventing back-drive damage in modular or hot-swap systems. |
| 5.5-V Input Tolerance | Accepts legacy 5-V logic signals while operating from modern low-voltage rails (1.65–5.5 V), eliminating discrete translators. |
| Low Ground Bounce | Typical VOLP < 0.8 V at 3.3 V ensures clean signal edges and reduced EMI in dense PCB layouts. |
| ESD Robustness | 2500-V HBM and 1500-V CDM ratings meet industrial-grade reliability requirements without external protection diodes. |
Applications
| Audio Signal Routing | Embedded Microcontroller I/O Expansion |
|---|---|
|
Use Scenario: Isolating and driving analog switch control lines in portable Bluetooth audio docks and wireless headsets. IC Role / Device Role / Timing Role: Dual buffer provides noise-immune signal conditioning between low-power MCU GPIOs and high-capacitance analog switch inputs. Use Value: ±24-mA drive ensures fast, monotonic switching of audio path selectors; 4.1-ns tpd maintains precise timing alignment across stereo channels. |
Use Scenario: Level-shifting and buffering GPIO signals between 3.3-V microcontrollers and 5-V peripheral interfaces in SSD controller boards. IC Role / Device Role / Timing Role: Translates 5-V enable/reset signals down to 3.3-V domain while providing fan-out to multiple downstream devices. Use Value: 5.5-V input tolerance allows direct connection to 5-V peripherals; Ioff prevents data corruption during power sequencing events. |
| Portable Display Interface | Industrial Sensor Signal Conditioning |
|
Use Scenario: Driving backlight enable and contrast control lines in tablet LCD modules with mixed 1.8-V/3.3-V SoC interfaces. IC Role / Device Role / Timing Role: Buffers low-current SoC outputs to drive higher-capacitance display control nets with minimal skew. Use Value: 10-µA max ICC extends battery life in always-on display standby modes; NanoFree™ package saves board area in tight bezel designs. |
Use Scenario: Isolating and strengthening digital sensor status outputs (e.g., temperature alert flags) before feeding to PLC input modules. IC Role / Device Role / Timing Role: Provides galvanic isolation equivalent via signal buffering, preventing ground loop interference in noisy factory environments. Use Value: RθJA = 142°C/W enables reliable operation at 125°C ambient; ±24-mA drive overcomes long-cable capacitance without signal degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual buffer gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G34DBVR | SOT-23-6 package (2.90 mm × 1.60 mm); 165°C/W thermal resistance; same electrical specs and pinout. | Better suited for manual assembly or prototyping due to larger pitch (0.95 mm vs. DRL's 0.5 mm); less space-efficient. | Select when board real estate permits larger footprint or when compatibility with legacy SOT-23 tooling is required. |
| SN74LVC2G34DCKR | SC70-6 package (2.00 mm × 1.25 mm); 259°C/W thermal resistance; identical logic function and voltage specs. | Higher thermal resistance limits continuous high-drive operation in thermally constrained enclosures; smaller than DRL but not NanoFree™. | Choose for cost-sensitive consumer designs where moderate thermal performance suffices and SC70 reflow profiles are already qualified. |
Compared with SN74LVC2G34DRLR, SN74LVC2G34DBVR offers easier handling but consumes 2.4× more board area, while SN74LVC2G34DCKR trades thermal efficiency for intermediate size-making SN74LVC2G34DRLR optimal for space- and thermal-critical portable electronics.
Availability
SN74LVC2G34DRLR is available at Aetrix Electronics and suitable for portable audio interfaces, embedded microcontroller I/O expansion, LCD backlight control, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle assurance.
Supply support for SN74LVC2G34DRLR 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 and embedded processing technologies, with decades of expertise in logic IC design and advanced packaging innovation.
The SN74LVC2G34 series belongs to TI's LVC (Low-Voltage CMOS) logic family, engineered for low-power, high-speed signal buffering and voltage translation in portable, automotive, and industrial systems.
FAQ
What is the maximum operating temperature for SN74LVC2G34DRLR?
The SN74LVC2G34DRLR is rated for operation from –40°C to +125°C ambient temperature, matching the thermal specification of its SOT-5X3 (DRL) package. This rating is confirmed in the Recommended Operating Conditions table of the official SCES359J datasheet and applies to all electrical parameters unless otherwise noted.
Does SN74LVC2G34DRLR support hot-swap or live-insertion applications?
Yes, SN74LVC2G34DRLR supports live insertion via its Ioff circuitry, which disables outputs when VCC = 0 V. This prevents damaging current backflow from powered system buses into the unpowered device, making it suitable for modular backplane and hot-plug card applications.
Can SN74LVC2G34DRLR translate 5-V inputs to a 1.8-V output domain?
Yes, SN74LVC2G34DRLR accepts input voltages up to 5.5 V regardless of VCC, and outputs swing rail-to-rail between GND and the applied VCC. When VCC = 1.8 V, it reliably translates 5-V control signals into clean 1.8-V logic levels without external components.
What is the typical power dissipation capacitance (Cpd) of SN74LVC2G34DRLR at 3.3 V?
The typical power dissipation capacitance (Cpd) of SN74LVC2G34DRLR is 15 pF at VCC = 3.3 V and f = 10 MHz, as specified in Section 6.7 (Operating Characteristics) of the SCES359J datasheet. This value directly impacts dynamic power consumption in high-frequency switching applications.
Is SN74LVC2G34DRLR pin-compatible with other variants like SN74LVC2G34DBVR?
Yes, SN74LVC2G34DRLR shares identical pin configuration and function mapping (1A, GND, 2A, 2Y, VCC, 1Y) with SN74LVC2G34DBVR and SN74LVC2G34DCKR. All variants implement the same dual-buffer logic and are functionally interchangeable-only package dimensions and thermal metrics differ.
SN74LVC2G34DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- SOT-563, SOT-666
- 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-5X3
SN74LVC2G34DRLR FAQ
1.How can I place an order for SN74LVC2G34DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G34DRLR 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 SN74LVC2G34DRLR reliable?
The price and inventory of SN74LVC2G34DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G34DRLR is usually 5 days.
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5.How can I obtain technical support or documentation for SN74LVC2G34DRLR?
For technical support, including SN74LVC2G34DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G34DRLR requirements.
6.How does Aetrix verify that SN74LVC2G34DRLR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G34DRLR 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 SN74LVC2G34DRLR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G34DRLR?
All SN74LVC2G34DRLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G34DRLR, 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 SN74LVC2G34DRLR part is unused and in its original packaging.
Return procedure for SN74LVC2G34DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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