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Texas Instruments SN74AUC2G34DBVR
- Part No.:
- SN74AUC2G34DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
SN74AUC2G34DBVR.pdf
- Description:
- IC BUF NON-INVERT 2.7V SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,017
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Product details
Overview
SN74AUC2G34DBVR from Texas Instruments is a dual non-inverting buffer gate optimized for 1.65–1.95 V operation, delivering ±8 mA output drive at 1.8 V, 1.6 ns max propagation delay, and 10 µA ICC quiescent current. It supports mixed-mode signal interfacing in low-voltage digital systems such as mobile baseband processors and portable memory interfaces.
For engineers reviewing the SN74AUC2G34DBVR datasheet, SN74AUC2G34DBVR pinout, SN74AUC2G34DBVR application, or SN74AUC2G34DBVR equivalent, key selection criteria include sub-1-V operability, Ioff-enabled partial-power-down support, 3.6-V I/O tolerance, and SOT-23 (DBV) package compatibility with space-constrained PCB layouts.
Technical Context
This device implements two independent positive-logic buffers (Y = A), each with rail-to-rail CMOS output swing and input thresholds scaled to VCC (VIH = 0.65×VCC, VIL = 0.35×VCC). It operates across 0.8–2.7 V supply range but is characterized and optimized for 1.65–1.95 V nominal use.
The Ioff circuitry actively disables outputs during power-down, blocking current backflow when VCC = 0 V while inputs remain biased at up to 3.6 V. ESD protection exceeds 2000-V HBM, 200-V MM, and 1000-V CDM per JESD22 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - enables operation from ultra-low-voltage logic domains up to 2.5-V systems |
| tpd (max) | 1.6 ns at 1.8 V, CL = 15 pF - supports high-speed signal buffering in DDR I/O and clock distribution paths |
| Output Drive | ±8 mA at 1.65–1.95 V - sufficient to drive 50-Ω transmission lines or fan-out to ≥10 LVTTL loads |
| Ioff Support | Active at VCC = 0 V - prevents back-current injection during hot-insertion or partial-power-down sequencing |
| I/O Voltage Tolerance | 3.6-V tolerant inputs/outputs - allows safe interfacing between 1.8-V logic and 3.3-V peripherals without level shifters |
| ICC (quiescent) | 10 µA at 1.8 V - minimizes static power in always-on subsystems like sensor hubs or real-time clocks |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM - meets industrial-grade robustness requirements for handheld electronics |
Pinout & Package
SOT-23 (DBV) package: 6-pin, 1.45 mm max height, 2.9 × 1.6 mm footprint, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A (Input) | First buffer input - accepts 0.8–3.6 V signals; VIH/VIL scale with VCC |
| 2 | VCC | Supply pin - must be decoupled locally; supports 0.8–2.7 V operation |
| 3 | 2Y (Output) | Second buffer output - delivers rail-to-rail CMOS levels with ±8 mA drive at 1.8 V |
| 4 | 2A (Input) | Second buffer input - electrically identical to Pin 1; supports independent signal routing |
| 5 | GND | Ground reference - must be low-impedance; ties to system ground plane |
| 6 | 1Y (Output) | First buffer output - matches Pin 3 electrical behavior; shares same VCC/GND pair |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-package construction reduces footprint by >50% vs. standard SOT-23; eliminates leadframe parasitics |
| Sub-1-V operability | Functional down to 0.8 V VCC - enables direct integration with emerging ultra-low-power microcontrollers |
| 3.6-V I/O tolerance | Inputs and outputs withstand 3.6 V regardless of VCC - eliminates external clamping diodes in mixed-voltage systems |
| Ioff partial-power-down | Outputs enter high-Z state with <±10 µA leakage when VCC = 0 - prevents bus contention during sleep mode |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II - ensures robustness against transient overvoltage events |
Applications
| Mobile Baseband Interface | Low-Power Sensor Hub |
|---|---|
|
Use Scenario: Level-shifting and signal conditioning between 1.8-V application processor GPIO and 3.3-V PMIC or codec interface. IC Role / Device Role: Dual buffer isolates voltage domains while preserving signal integrity and timing margins. Use Value: Eliminates discrete level translators; 1.6 ns tpd maintains setup/hold timing for 500-MHz I²C or SPI control buses. |
Use Scenario: Driving multiple MEMS sensor interrupt lines into a single low-power MCU input with noise margin enhancement. IC Role / Device Role: Signal aggregation and fan-out buffering with Ioff enabling MCU deep-sleep without sensor bus leakage. Use Value: 10 µA ICC and Ioff reduce standby current by >95% versus standard buffers; 3.6-V tolerance accommodates sensor VDD variations. |
| DDR Memory Subsystem | Wearable Display Timing Control |
|
Use Scenario: Buffering address/control signals from 1.8-V SoC to DDR2/DDR3 memory modules requiring clean, low-skew edges. IC Role / Device Role: High-speed non-inverting buffer ensuring monotonic edge transitions and minimal jitter accumulation. Use Value: 1.6 ns tpd and ±8 mA drive meet DDR2 tDS/tDH timing budgets; sub-1-V capability future-proofs for LPDDR5 voltage scaling. |
Use Scenario: Conditioning PWM brightness control and frame sync signals from 1.8-V GPU to OLED display driver ICs. IC Role / Device Role: Signal integrity preservation across flexible PCB traces subject to impedance variation and EMI. Use Value: Rail-to-rail output swing guarantees full logic swing at display IC inputs; NanoFree™ package minimizes board area in tight bezel designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AUP2G34DBVR | Lower ICC (500 nA typical), slower tpd (3.4 ns at 1.8 V), same Ioff and voltage range | Better suited for ultra-low-power always-on monitoring; not ideal for >100-MHz signal paths | Select when minimizing standby current outweighs speed requirements |
| 74LVC2G34GW,125 | Wider VCC range (1.65–5.5 V), higher drive (±24 mA at 3.3 V), no sub-1-V operation | Compatible with legacy 3.3-V systems but lacks 0.8–1.1 V capability and NanoFree™ footprint | Choose for mixed 3.3/1.8-V designs where board space is less constrained |
Compared with SN74AUC2G34DBVR, SN74AUP2G34DBVR trades speed for nanowatt quiescent power, while 74LVC2G34GW,125 offers broader voltage flexibility at the cost of larger footprint and no sub-1-V support - making SN74AUC2G34DBVR optimal for compact, battery-sensitive 1.8-V systems demanding both speed and ultra-low ICC.
Availability
SN74AUC2G34DBVR is available at Aetrix Electronics and suitable for mobile baseband interfaces, low-power sensor hubs, and DDR memory subsystems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SN74AUC2G34DBVR 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 decades of expertise in low-voltage logic innovation.
The SN74AUC2G34DBVR belongs to TI's AUC (Advanced Ultra-low-power CMOS) logic family, engineered specifically for high-speed, ultra-low-power buffering in portable and battery-operated electronics operating at 1.8 V and below.
FAQ
What is the minimum operating voltage for SN74AUC2G34DBVR?
The SN74AUC2G34DBVR is fully functional down to 0.8 V VCC, with guaranteed performance across 0.8–2.7 V. Its design focus is 1.65–1.95 V operation, where parameters like tpd = 1.6 ns and ±8 mA drive are specified. Below 1.1 V, output drive and speed degrade gradually but remain usable in ultra-low-power contexts.
Does SN74AUC2G34DBVR support hot-swapping or partial-power-down modes?
Yes, SN74AUC2G34DBVR includes Ioff circuitry that disables outputs when VCC = 0 V, limiting leakage to ±10 µA. This prevents damaging current backflow during hot-insertion or when upstream logic remains powered while the buffer's supply is off - a critical feature for modular or field-upgradeable systems.
Can SN74AUC2G34DBVR safely interface between 1.8-V and 3.3-V logic domains?
Yes, SN74AUC2G34DBVR has 3.6-V tolerant inputs and outputs, meaning it can accept 3.3-V signals while powered from 1.8 V and drive 3.3-V loads without external level shifters or clamping components - simplifying inter-domain signal routing in mixed-voltage SoC designs.
What is the thermal resistance (θJA) of the SN74AUC2G34DBVR in its SOT-23 package?
The SN74AUC2G34DBVR in the DBV (SOT-23) package has a θJA of 165°C/W under JEDEC-standard conditions. This value assumes a 2-layer PCB with 1-in² copper pour on both sides; actual thermal performance improves significantly with internal layer copper planes or thermal vias beneath the GND pad.
Is the NanoFree™ package of SN74AUC2G34DBVR compatible with standard SOT-23 footprints and reflow profiles?
Yes, SN74AUC2G34DBVR uses the industry-standard SOT-23 (DBV) package with 2.9 × 1.6 mm outline and gull-wing leads. It complies with IPC-7351 land patterns and JEDEC Level-1 reflow profile (peak 260°C), requiring no special assembly processes beyond standard lead-free reflow.
SN74AUC2G34DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- 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:
- 9mA, 9mA
- Voltage - Supply:
- 0.8V ~ 2.7V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
SN74AUC2G34DBVR FAQ
1.How can I place an order for SN74AUC2G34DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC2G34DBVR 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 SN74AUC2G34DBVR reliable?
The price and inventory of SN74AUC2G34DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC2G34DBVR is usually 5 days.
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4.How is shipping managed for SN74AUC2G34DBVR?
SN74AUC2G34DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC2G34DBVR 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 SN74AUC2G34DBVR?
For technical support, including SN74AUC2G34DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC2G34DBVR requirements.
6.How does Aetrix verify that SN74AUC2G34DBVR is sourced from the original manufacturer or authorized distributors?
All SN74AUC2G34DBVR 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 SN74AUC2G34DBVR meets industry standards.
7.What is the process for return or replacement of SN74AUC2G34DBVR?
All SN74AUC2G34DBVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC2G34DBVR, 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 SN74AUC2G34DBVR part is unused and in its original packaging.
Return procedure for SN74AUC2G34DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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