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Texas Instruments SN74LVC1G34DRLR
- Part No.:
- SN74LVC1G34DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-553
- Datasheet:
-
SN74LVC1G34DRLR.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SOT5
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC1G34 from Texas Instruments is a single non-inverting CMOS buffer gate designed for 1.65V–5.5V operation, delivering ±24mA output drive at 3.3V, 3.5ns max propagation delay (tpd), and Ioff support for live insertion in partial-power-down systems. It serves as a level-translating signal conditioner in portable audio interfaces and embedded logic buffering.
For engineers reviewing the SN74LVC1G34 datasheet, SN74LVC1G34 pinout, SN74LVC1G34 application, or SN74LVC1G34 equivalent, key selection criteria include its 5-pin SOT-23 (DRL) package, 1.65V–5.5V VCC compatibility, 5.5V-tolerant inputs, Ioff-enabled back-drive protection, and guaranteed tpd ≤3.5ns at 3.3V/CL=15pF.
Technical Context
The SN74LVC1G34 implements a single positive-logic buffer (Y = A) using advanced LVC CMOS technology, enabling bidirectional voltage translation - inputs accept up to 5.5V while outputs swing rail-to-rail between GND and VCC. Its Ioff circuitry actively disables outputs during power-down, preventing current backflow and enabling hot-plug capability.
It operates across –40°C to 125°C (for DRL package), supports 15pF/30pF/50pF load conditions, and maintains stable VOH/VOL performance across VCC (1.65V–5.5V) and temperature. Input thresholds scale with VCC (e.g., VIH = 0.7×VCC at 4.5V–5.5V), ensuring robust noise margins in mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65V to 5.5V - enables direct interface with 1.8V, 2.5V, 3.3V, and 5V logic domains without external level shifters. |
| tpd (max) | 3.5ns at VCC = 3.3V, CL = 15pF - supports clean signal routing up to ~100MHz clock/data rates in compact portable designs. |
| Output Drive | ±24mA at VCC = 3.3V - sufficient to directly drive LEDs, multiple CMOS inputs, or moderate capacitive loads without external buffers. |
| Ioff Current | ±10μA max at VI/VO = 5.5V - ensures safe isolation during partial power-down, critical for hot-swap and battery-backed subsystems. |
| Input Voltage Tolerance | Up to 5.5V independent of VCC - allows interfacing with higher-voltage controllers (e.g., 5V microcontrollers) into lower-VCC logic rails. |
| ICC (max) | 10μA at TA = 85°C - ultra-low static power ideal for always-on, battery-sensitive applications like wireless headsets and SSDs. |
| ESD Rating | ±2kV HBM - meets industrial-grade robustness requirements for consumer electronics assembly and field operation. |
Pinout & Package
SN74LVC1G34DRLR uses the 5-pin SOT-23 (DRL) package: 1.60mm × 1.60mm body size, 0.95mm height, gull-wing leads, RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Unused pad; must be left floating or grounded per layout best practice - no electrical function. |
| 2 (A) | Input | CMOS-compatible digital input accepting 0–5.5V; threshold scales with VCC for reliable operation across supply voltages. |
| 3 (GND) | Ground reference | Primary return path for output sink current and supply return; requires low-impedance PCB connection to minimize noise. |
| 4 (Y) | Output | Push-pull CMOS output capable of sourcing/sinking ±24mA at 3.3V; rail-to-rail swing with defined VOH/VOL specs. |
| 5 (VCC) | Power supply | Single-supply input for 1.65V–5.5V operation; requires local 0.1μF ceramic bypass capacitor placed adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 0.64mm² DPW package option available - but SN74LVC1G34DRLR uses DRL (1.6mm × 1.6mm), optimized for manual rework and standard SMT placement. |
| Voltage translation | Inputs tolerate 5.5V while operating from VCC as low as 1.65V - eliminates need for discrete level shifters in mixed-voltage signal paths. |
| Ioff protection | Active high-impedance state during power-off prevents back-driving and latch-up - essential for modular, hot-pluggable subsystems. |
| Low dynamic power | Cpd = 16pF (at 3.3V) - minimizes switching current; total ICC remains <10μA even at 10MHz, extending battery life in portable devices. |
| Robust ESD immunity | 2kV HBM rating - exceeds JEDEC JS-001 Class 2, reducing field failure risk in handheld and docked audio equipment. |
Applications
| AV Receiver Signal Routing | Portable Audio Dock Interface |
|---|---|
|
Use Scenario: Routing control signals (e.g., mute, source select) between 5V microcontroller and 3.3V audio codec in multi-format AV receivers. IC Role / Device Role / Timing Role: Level-translating buffer isolating voltage domains while preserving signal integrity and timing margin. Use Value: Eliminates external level shifter ICs; 3.5ns tpd ensures setup/hold compliance across 25MHz control buses. |
Use Scenario: Driving LED status indicators and enabling USB/3.5mm jack detection logic in battery-powered audio docks. IC Role / Device Role / Timing Role: Single-gate buffer providing 24mA drive for LEDs and clean logic-level translation for host MCU GPIOs. Use Value: Reduces BOM count vs. discrete transistor + resistor solutions; Ioff prevents battery drain when dock is unpowered. |
| Solid State Drive (SSD) Power Sequencing | Tablet Embedded PC Logic Interface |
|
Use Scenario: Enabling 1.8V/3.3V power rails in client SSDs via sequenced enable signals from a 5V PMIC controller. IC Role / Device Role / Timing Role: Non-inverting buffer translating PMIC enable outputs to SSD controller reset/enable inputs with precise timing control. Use Value: Guarantees monotonic power-up sequencing; ±24mA drive ensures fast edge rates into high-capacitance enable nets. |
Use Scenario: Isolating touch controller interrupt lines and sensor data paths from application processor GPIOs in enterprise tablets. IC Role / Device Role / Timing Role: Signal integrity buffer mitigating crosstalk and ground bounce in dense, high-speed PCB layouts. Use Value: 1.6mm × 1.6mm DRL package fits tight space constraints; 5.5V-tolerant inputs prevent damage from ESD coupling on exposed connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-buffer gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC1G34GW,125 (Nexperia) |
Same logic function, 5-pin TSSOP (DHVQFN), 3.5ns tpd at 3.3V, but rated only to 125°C (not 125°C with full spec guarantee over full range). | Lacks Ioff specification - not suitable for live-insertion or partial-power-down use cases requiring back-drive protection. | Select SN74LVC1G34DRLR when Ioff-enabled hot-swap capability or extended temperature validation (–40°C to 125°C) is required. |
| MC74VHC1G07DTT1G (onsemi) |
Open-drain output (no pull-up), 3.5ns tpd at 3.3V, 2.0V–5.5V VCC, but lacks 5.5V-tolerant inputs and Ioff. | Requires external pull-up for HIGH-level output; unsuitable for push-pull driving or voltage translation from 5V sources. | Choose SN74LVC1G34DRLR for push-pull drive, 5.5V-tolerant inputs, and guaranteed Ioff behavior in shared-bus or modular systems. |
Compared with 74LVC1G34GW,125 and MC74VHC1G07DTT1G, the SN74LVC1G34DRLR uniquely combines 5.5V-tolerant inputs, Ioff-enabled power-down safety, and full –40°C to 125°C characterization - making it the only choice for robust, mixed-voltage, hot-pluggable embedded logic interfaces.
Availability
SN74LVC1G34DRLR is available at Aetrix Electronics and suitable for portable audio docks, solid-state drives, and enterprise tablets requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across temperature and voltage.
Supply support for SN74LVC1G34DRLR 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 logic solutions, with decades of expertise in high-reliability, low-power logic families.
The SN74LVC1G34 belongs to TI's LVC (Low-Voltage CMOS) logic family - engineered for wide VCC range, high noise immunity, and interoperability across voltage domains in portable, audio, and storage applications.
FAQ
What is the maximum operating temperature for SN74LVC1G34DRLR?
The SN74LVC1G34DRLR is fully specified over –40°C to 125°C ambient temperature, validated per JEDEC JESD78 latch-up testing and JESD22 ESD standards. This rating applies specifically to the DRL (SOT-23) package variant and ensures reliable operation in thermally demanding environments such as SSD enclosures and tablet basebands.
Does SN74LVC1G34DRLR support 5V-tolerant inputs when powered from 1.8V?
Yes. The SN74LVC1G34DRLR accepts input voltages up to 5.5V regardless of VCC setting - including at 1.8V operation. This enables direct connection to 5V microcontrollers or legacy peripherals without external level-shifting circuitry, a key feature confirmed in Section 5.3 (Recommended Operating Conditions) of the TI datasheet.
Can SN74LVC1G34DRLR drive an LED directly?
Yes. With ±24mA output drive capability at 3.3V, the SN74LVC1G34DRLR can directly sink or source typical indicator LEDs (e.g., 20mA @ 2V forward voltage). Application note SCES519O Section 8.1 explicitly cites LED driving as a valid use case, provided series resistance is selected to limit current within both LED and device ratings.
Is Ioff functionality guaranteed for SN74LVC1G34DRLR?
Yes. Ioff is a core, tested feature of the SN74LVC1G34DRLR - documented in Features, Section 7.1 (Detailed Description), and Electrical Characteristics (Ioff = ±10μA max). It actively disables outputs during power-down, preventing damaging current backflow, and is validated across –40°C to 125°C for the DRL package.
What decoupling capacitor is recommended for SN74LVC1G34DRLR?
A 0.1μF ceramic capacitor placed as close as possible to the VCC pin (Pin 5) and GND (Pin 3) is recommended per TI's Layout Guidelines (Section 8.3). This minimizes high-frequency supply noise and ensures stable switching performance - especially critical for maintaining <3.5ns tpd under varying load conditions.
SN74LVC1G34DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- SOT-553
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- 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-5
SN74LVC1G34DRLR FAQ
1.How can I place an order for SN74LVC1G34DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC1G34DRLR 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 SN74LVC1G34DRLR reliable?
The price and inventory of SN74LVC1G34DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G34DRLR is usually 5 days.
3.What payment methods are accepted for SN74LVC1G34DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC1G34DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC1G34DRLR?
SN74LVC1G34DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC1G34DRLR 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 SN74LVC1G34DRLR?
For technical support, including SN74LVC1G34DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G34DRLR requirements.
6.How does Aetrix verify that SN74LVC1G34DRLR is sourced from the original manufacturer or authorized distributors?
All SN74LVC1G34DRLR 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 SN74LVC1G34DRLR meets industry standards.
7.What is the process for return or replacement of SN74LVC1G34DRLR?
All SN74LVC1G34DRLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G34DRLR, 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 SN74LVC1G34DRLR part is unused and in its original packaging.
Return procedure for SN74LVC1G34DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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