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Texas Instruments SN74LVC2G34DCKRG4
- Part No.:
- SN74LVC2G34DCKRG4
- Manufacturer:
- Texas Instruments
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
SN74LVC2G34DCKRG4.pdf
- Description:
- IC BUF NON-INVERT 5.5V SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,757
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Product details
Overview
SN74LVC2G34DCKRG4 from Texas Instruments is a dual non-inverting buffer gate 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 SN74LVC2G34DCKRG4 datasheet, SN74LVC2G34DCKRG4 pinout, SN74LVC2G34DCKRG4 application, or SN74LVC2G34DCKRG4 equivalent, key selection criteria include Ioff-enabled partial-power-down protection, SC70-6 package footprint (2.00 mm × 1.25 mm), 10-µA max ICC quiescent current, and compatibility with 1.65–5.5-V mixed-voltage system interconnects.
Technical Context
The SN74LVC2G34DCKRG4 implements two independent CMOS buffer stages with rail-to-rail output swing and balanced rise/fall times. Its Ioff circuitry actively disables outputs when VCC = 0 V, blocking back-current flow during live insertion or partial power-down - critical for hot-swap interfaces and modular systems.
Input voltage tolerance up to 5.5 V allows direct connection to higher-voltage logic domains while operating at lower VCC (e.g., 1.8 V or 2.5 V), supporting down-translation without external level shifters. The device exhibits low ground bounce (<0.8 V) and VOH undershoot (>2 V) at 3.3 V, ensuring signal integrity in high-speed digital paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - enables interoperability across 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains |
| Max tpd | 4.1 ns at 3.3 V - supports >100-MHz signal buffering in timing-critical paths |
| IOH/IOL | ±24 mA at 3.3 V - drives multiple CMOS loads or LEDs directly without external amplification |
| Ioff | ±10 µA max - prevents damaging back-current during VCC ramp-down or hot-plug events |
| Input Voltage Tolerance | Up to 5.5 V - permits interfacing with legacy 5-V peripherals while powered from 1.8-V or 2.5-V rails |
| ICC (max) | 10 µA - minimizes standby power in battery-operated portable audio and SSD controllers |
| ESD Rating | 2500-V HBM - meets industrial-grade robustness requirements without external protection |
Pinout & Package
SN74LVC2G34DCKRG4 uses the SC70-6 (DCK) package: 2.00 mm × 1.25 mm body, 0.65-mm pitch, 6-pin surface-mount outline with pin 1 in quadrant Q3 per tape-and-reel standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Buffer Input 1 | Primary input for first buffer channel; accepts 0–5.5 V regardless of VCC value |
| 1Y | Buffer Output 1 | Non-inverting output driven to VCC or GND; capable of ±24 mA sink/source at 3.3 V |
| 2A | Buffer Input 2 | Independent input for second buffer channel; electrically isolated from 1A/1Y |
| 2Y | Buffer Output 2 | Non-inverting output with identical drive strength and timing as 1Y |
| GND | Ground Reference | Return path for all internal logic and output currents; must be low-impedance |
| VCC | Power Supply | Single supply rail defining logic thresholds and output swing; bypass capacitor required |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ packaging | Dies-as-package construction reduces footprint to 2.00 mm × 1.25 mm - ideal for space-constrained portable designs |
| Ioff partial-power-down | Enables safe hot insertion and modular backplane operation by disabling outputs when VCC = 0 V |
| 5.5-V tolerant inputs | Eliminates need for discrete level translators when interfacing with 5-V sensors or legacy controllers |
| Low ground bounce | <0.8 V typical VOLP at 3.3 V ensures clean switching in multi-buffer fanout configurations |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II - guarantees robust operation under transient overvoltage stress |
Applications
| Audio Signal Routing | Solid-State Drive (SSD) Control |
|---|---|
|
Use Scenario: Isolating and driving I²S clock/data lines between baseband processor and audio codec in MP3 players and wireless headsets. IC Role / Device Role / Timing Role: Dual buffer isolates noise-sensitive analog sections from noisy digital domains while preserving signal edge integrity. Use Value: ±24-mA drive ensures fast edge rates into 50-pF loads; 4.1-ns tpd maintains <1-ns skew across stereo channels. |
Use Scenario: Level-shifting and buffering host controller GPIO signals to NAND flash interface and power management ICs in client SSD modules. IC Role / Device Role / Timing Role: Translates 1.8-V host signals to 3.3-V NAND command lines while providing current gain for capacitive bus loading. Use Value: 5.5-V input tolerance allows direct connection to 3.3-V power rails; Ioff prevents leakage during SSD sleep mode. |
| Embedded PC Expansion | Portable Video Interface |
|
Use Scenario: Buffering SMBus, GPIO, or reset signals between SoC and peripheral modules (e.g., camera, sensor hub) in tablets and enterprise PDAs. IC Role / Device Role / Timing Role: Provides isolation and drive strength for multi-drop buses where source impedance must be minimized. Use Value: 10-µA max ICC extends battery life; SC70-6 footprint fits tight spacing around BGA SoCs without requiring vias. |
Use Scenario: Driving HDMI CEC or DDC lines in Blu-ray players and LCD TVs where ESD robustness and small size are mandatory. IC Role / Device Role / Timing Role: Acts as bidirectional signal conditioner for low-voltage control buses exposed to user-accessible ports. Use Value: 2500-V HBM rating protects against handling ESD; 0.65-mm pitch enables routing beneath fine-pitch connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G34DBVR | SOT-23-6 package (2.90 mm × 1.60 mm); 165°C/W RθJA; same electrical specs | Less space-constrained PCBs; better thermal dissipation in high-ambient environments | Choose DBVR when board area allows larger footprint and thermal margin is prioritized over miniaturization |
| SN74LVC2G34DRLR | SOT-5X3-6 package (1.60 mm × 1.20 mm); 142°C/W RθJA; identical logic and drive | Ultra-dense layouts where SC70 is still too large; requires tighter assembly process control | Choose DRLR only if SC70 footprint is insufficient and assembly capability supports 0.5-mm pitch handling |
Compared with SN74LVC2G34DBVR and SN74LVC2G34DRLR, SN74LVC2G34DCKRG4 offers the optimal balance of ultra-small size (2.00 mm × 1.25 mm), proven manufacturability in SC70, and thermal performance (259°C/W RθJA) suitable for portable consumer electronics.
Availability
SN74LVC2G34DCKRG4 is available at Aetrix Electronics and suitable for portable audio, SSD control, and embedded PC expansion requiring stable component supply, consistent SC70-6 packaging, and guaranteed long-term production continuity.
Supply support for SN74LVC2G34DCKRG4 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.
SN74LVC2G34DCKRG4 belongs to TI's LVC logic family - engineered for low-voltage, high-speed, mixed-signal interfacing in portable, industrial, and computing applications where size, power, and robustness are critical.
FAQ
What is the maximum operating temperature range for SN74LVC2G34DCKRG4?
The SN74LVC2G34DCKRG4 is rated for operation from –40°C to +125°C ambient temperature. This full industrial range applies specifically to the SC70-6 (DCK) package variant, enabling use in automotive infotainment modules, industrial SSDs, and outdoor portable equipment where thermal extremes occur.
Does SN74LVC2G34DCKRG4 support level translation between different supply voltages?
Yes, SN74LVC2G34DCKRG4 supports down-translation: its inputs accept voltages up to 5.5 V regardless of VCC, allowing a 5-V microcontroller to drive the device while it operates from a 1.8-V or 2.5-V rail. Outputs swing rail-to-rail between the applied VCC and GND, making SN74LVC2G34DCKRG4 suitable for bidirectional voltage domain bridging.
How does the Ioff feature function in SN74LVC2G34DCKRG4?
The Ioff circuitry in SN74LVC2G34DCKRG4 automatically disables both outputs when VCC is at 0 V or near-zero, limiting input/output leakage to ±10 µA. This prevents back-current flow through the device during hot-plug events, partial power-down sequences, or system reconfiguration - a requirement verified in SN74LVC2G34DCKRG4's functional modes table and absolute maximum ratings.
What is the recommended bypass capacitor for SN74LVC2G34DCKRG4?
Texas Instruments recommends a 0.1-µF ceramic capacitor placed as close as possible to the VCC pin of SN74LVC2G34DCKRG4. For systems with multiple logic devices sharing the same rail, parallel placement of a 1-µF capacitor improves low-frequency noise suppression. The SC70-6 layout constraints require capacitor placement within 2 mm of the VCC pad to maintain effective decoupling.
Can SN74LVC2G34DCKRG4 drive LEDs directly?
Yes, SN74LVC2G34DCKRG4 can drive standard indicator LEDs directly: each output delivers up to 24 mA at 3.3 V, sufficient for common 2–20-mA LED loads. When used this way, the output acts as a low-side switch (sinking current to GND) or high-side driver (sourcing from VCC), with VOL ≤ 0.55 V and VOH ≥ 2.3 V at full load - confirmed in the Electrical Characteristics table of the SN74LVC2G34DCKRG4 datasheet.
SN74LVC2G34DCKRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- 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:
- SC-70-6
SN74LVC2G34DCKRG4 FAQ
1.How can I place an order for SN74LVC2G34DCKRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G34DCKRG4 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 SN74LVC2G34DCKRG4 reliable?
The price and inventory of SN74LVC2G34DCKRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G34DCKRG4 is usually 5 days.
3.What payment methods are accepted for SN74LVC2G34DCKRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G34DCKRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G34DCKRG4?
SN74LVC2G34DCKRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G34DCKRG4 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 SN74LVC2G34DCKRG4?
For technical support, including SN74LVC2G34DCKRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G34DCKRG4 requirements.
6.How does Aetrix verify that SN74LVC2G34DCKRG4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G34DCKRG4 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 SN74LVC2G34DCKRG4 meets industry standards.
7.What is the process for return or replacement of SN74LVC2G34DCKRG4?
All SN74LVC2G34DCKRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G34DCKRG4, 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 SN74LVC2G34DCKRG4 part is unused and in its original packaging.
Return procedure for SN74LVC2G34DCKRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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