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Texas Instruments SN74LVC2G34DCKR
- Part No.:
- SN74LVC2G34DCKR
- Manufacturer:
- Texas Instruments
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
SN74LVC2G34DCKR.pdf
- Description:
- IC BUF NON-INVERT 5.5V SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:56,931
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Product details
Overview
SN74LVC2G34DCKR from Texas Instruments is a dual non-inverting buffer gate in SC70-6 package, operating from 1.65 V to 5.5 V, delivering ±24 mA output drive at 3.3 V, with 4.1 ns max propagation delay and 5.5-V-tolerant inputs. It serves as a level-translating signal conditioner in portable audio and embedded interface paths.
For engineers reviewing the SN74LVC2G34DCKR datasheet, SN74LVC2G34DCKR pinout, SN74LVC2G34DCKR application, or SN74LVC2G34DCKR equivalent, key selection criteria include Ioff-enabled partial-power-down support, NanoFree™ SC70 footprint compatibility, 3.3-V/5-V mixed-voltage interface capability, and guaranteed 125°C operation.
Technical Context
The SN74LVC2G34DCKR implements two independent CMOS buffer gates (Y = A) with rail-to-rail output swing and input voltage tolerance up to 5.5 V regardless of VCC level. Its Ioff circuitry actively disables outputs during power-down, blocking back-current flow when VCC = 0 V.
This device supports down-translation - e.g., 5-V logic inputs driving a 1.8-V or 3.3-V domain - and exhibits low dynamic power consumption (10 µA ICC max) with robust ESD protection (2500-V HBM, 1500-V CDM). Thermal resistance is 259°C/W (RθJA, SC70).
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 Propagation Delay | 4.1 ns at 3.3 V - supports signal integrity in >100 MHz digital interfaces |
| Output Drive | ±24 mA at 3.3 V - sufficient to drive multiple CMOS loads or LEDs without external buffering |
| Input Voltage Tolerance | Up to 5.5 V - allows direct connection to higher-voltage buses without clamping diodes |
| Ioff Current | ±10 µA max - prevents damaging backflow during hot-insertion or partial power-down |
| ESD Rating | 2500-V HBM - meets industrial handling requirements per ANSI/ESDA/JEDEC JS-001 |
| Operating Temperature | –40°C to +125°C - qualified for automotive under-hood and industrial control environments |
Pinout & Package
SN74LVC2G34DCKR uses the SC70-6 (DCK) package: 2.00 mm × 1.25 mm body, 0.65 mm pitch, 0.9 mm max height, lead-free NiPdAu/Sn finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A - Input A of Buffer 1 | CMOS-compatible input accepting 0–5.5 V; tied high/low if unused to prevent floating |
| 2 | GND - Ground Reference | Primary return path for both buffers; must be low-impedance and decoupled near VCC pin |
| 3 | 2A - Input A of Buffer 2 | Independent input identical in function and voltage tolerance to Pin 1 |
| 4 | 2Y - Output Y of Buffer 2 | Active-high CMOS output; capable of sourcing/sinking ±24 mA at 3.3 V |
| 5 | VCC - Power Supply | Single supply input (1.65–5.5 V); requires local 0.1-µF ceramic bypass capacitor |
| 6 | 1Y - Output Y of Buffer 1 | Active-high CMOS output; electrically identical to Pin 4; not internally connected to Pin 4 |
Key Features
| Feature | Design Value |
|---|---|
| NanoFree™ SC70 packaging | Die-as-package construction reduces board area by >50% vs. SOT-23 while maintaining thermal performance |
| Ioff partial-power-down | Enables live insertion and safe operation when VCC is unpowered, preventing system-level backfeed |
| 5.5-V tolerant inputs | Eliminates need for external level-shifters when interfacing 5-V peripherals to lower-VCC subsystems |
| Low ground bounce (VOLP < 0.8 V) | Minimizes noise coupling into shared ground planes during fast switching transitions |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II - ensures robustness against transient overcurrent events |
Applications
| Audio Signal Routing | Embedded Microcontroller Interface |
|---|---|
|
Use Scenario: Isolating and strengthening I²S or PCM data lines between codec and SoC in portable audio devices. IC Role / Device Role / Timing Role: Dual buffer isolates source impedance, drives capacitive traces, and maintains signal edge rate across voltage domains. Use Value: Enables reliable 24-bit/192-kHz audio transport without added latency or waveform distortion. |
Use Scenario: Level-shifting GPIO signals between a 5-V sensor hub and a 3.3-V ARM Cortex-M microcontroller. IC Role / Device Role / Timing Role: Non-inverting buffer translates 5-V logic highs down to 3.3-V compatible levels while preserving timing integrity. Use Value: Eliminates discrete resistor dividers, reduces BOM count, and guarantees sub-5 ns skew between channels. |
| SSD Power Sequencing Control | Industrial Display Backlight Enable |
|
Use Scenario: Driving enable signals for 12-V DC-DC converters powering NAND flash in client SSD modules. IC Role / Device Role / Timing Role: High-drive buffer provides clean, slew-controlled enable pulses with defined rise/fall times. Use Value: Prevents inrush current mis-triggering by ensuring monotonic, jitter-free power-up sequencing. |
Use Scenario: Controlling LED backlight drivers in ruggedized tablet displays operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Robust buffer delivers 24-mA sink current to optocoupler or MOSFET gate with stable VOH/VOL. Use Value: Maintains consistent brightness control across temperature extremes without external pull-ups. |
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), RθJA = 165°C/W - larger footprint, better thermal dissipation | Better suited for high-duty-cycle or thermally constrained PCB layouts where SC70 heat density is limiting | Select DBVR when board space permits and junction temperature margin is critical above 85°C ambient |
| 74LVC2G34GW,115 | Nexperia SC70-6 variant; identical logic function but rated only to 125°C (not 125°C continuous), 20 mA drive at 3.3 V | Lower drive strength and narrower temp range limit use in high-reliability or high-current LED-driving roles | Choose GW,115 only for cost-sensitive consumer applications where 24-mA drive and full 125°C rating are unnecessary |
Compared with SN74LVC2G34DBVR and 74LVC2G34GW,115, the SN74LVC2G34DCKR offers the smallest footprint among TI's dual LVC buffers while retaining full 125°C operation and maximum drive - making it optimal for space-constrained, thermally demanding portable designs.
Availability
SN74LVC2G34DCKR is available at Aetrix Electronics and suitable for portable audio, embedded microcontroller interface, and solid-state storage applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SN74LVC2G34DCKR 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 and manufacturing.
The SN74LVC2G34DCKR belongs to TI's LVC logic family - engineered for low-voltage, high-speed, mixed-signal interface applications in portable, industrial, and automotive systems where size, power, and voltage translation are critical.
FAQ
What is the maximum operating temperature for SN74LVC2G34DCKR?
The SN74LVC2G34DCKR is fully specified from –40°C to +125°C ambient temperature. This rating applies specifically to the DCK (SC70) package variant and is validated per JEDEC JESD22-A108. Operation beyond 125°C ambient may exceed junction temperature limits unless board-level thermal design compensates accordingly. The SN74LVC2G34DCKR datasheet confirms this range in Section 6.3 Recommended Operating Conditions.
Does SN74LVC2G34DCKR support level translation between 5-V and 3.3-V logic domains?
Yes, the SN74LVC2G34DCKR supports down-translation: its inputs tolerate voltages up to 5.5 V regardless of VCC level, allowing 5-V signals to safely drive the device while VCC is set to 3.3 V or lower. The output will swing rail-to-rail between GND and the selected VCC (e.g., 0–3.3 V), enabling clean interface between disparate voltage domains without external components. This behavior is explicitly documented in Section 8.3 Feature Description.
Can SN74LVC2G34DCKR be used in hot-swap or partial-power-down systems?
Yes, the SN74LVC2G34DCKR includes Ioff circuitry that disables outputs when VCC = 0 V, preventing damaging current backflow from live inputs or outputs into the unpowered device. This feature is verified per JEDEC JESD78 and supports live insertion, partial-power-down modes, and back-drive protection - all confirmed in the Features section and Section 8.4 Device Functional Modes of the SN74LVC2G34DCKR datasheet.
What is the typical propagation delay of SN74LVC2G34DCKR at 3.3 V?
The typical propagation delay (tpd) of SN74LVC2G34DCKR is 2.7 ns at VCC = 3.3 V and TA = 25°C, with a maximum of 4.1 ns across –40°C to +125°C. These values are measured under standard load conditions (CL = 50 pF, RL = 500 Ω) and appear in Table 6.6 Switching Characteristics. The SN74LVC2G34DCKR achieves this performance while maintaining low power and high noise immunity.
Is SN74LVC2G34DCKR pin-compatible with other dual buffer variants in the same package?
Yes, SN74LVC2G34DCKR shares identical SC70-6 pinout and function mapping with all members of TI's SN74LVC2Gxx dual-gate family in DCK packaging - including SN74LVC2G00, SN74LVC2G04, and SN74LVC2G08. Pin 1 is always 1A, Pin 2 is GND, Pin 3 is 2A, Pin 4 is 2Y, Pin 5 is VCC, and Pin 6 is 1Y. This consistency simplifies design reuse and layout migration across logic functions.
SN74LVC2G34DCKR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- 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:
- SC-70-6
SN74LVC2G34DCKR FAQ
1.How can I place an order for SN74LVC2G34DCKR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G34DCKR 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 SN74LVC2G34DCKR reliable?
The price and inventory of SN74LVC2G34DCKR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G34DCKR is usually 5 days.
3.What payment methods are accepted for SN74LVC2G34DCKR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC2G34DCKR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC2G34DCKR?
SN74LVC2G34DCKR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G34DCKR 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 SN74LVC2G34DCKR?
For technical support, including SN74LVC2G34DCKR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G34DCKR requirements.
6.How does Aetrix verify that SN74LVC2G34DCKR is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G34DCKR 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 SN74LVC2G34DCKR meets industry standards.
7.What is the process for return or replacement of SN74LVC2G34DCKR?
All SN74LVC2G34DCKR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G34DCKR, 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 SN74LVC2G34DCKR part is unused and in its original packaging.
Return procedure for SN74LVC2G34DCKR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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