Texas Instruments SN74LVC2G17DBVT
- Part No.:
- SN74LVC2G17DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
SN74LVC2G17DBVT.pdf
- Description:
- IC BUF NON-INVERT 5.5V SOT23-6
- Quantity:
- Payment:

- Shipping:

Inventory:1,374
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Product details
Overview
SN74LVC2G17DBVT from Texas Instruments is a dual Schmitt-trigger buffer IC designed for 1.65 V to 5.5 V operation, performing Y = A logic with hysteresis-enhanced noise immunity. It features ±24 mA output drive at 3.3 V, 5.4 ns max propagation delay, and Ioff support for live insertion in partial-power-down systems. Used in audio docks, SSDs, and HDTVs for signal conditioning of noisy digital inputs.
For engineers reviewing the SN74LVC2G17DBVT datasheet, SN74LVC2G17DBVT pinout, SN74LVC2G17DBVT application, or SN74LVC2G17DBVT equivalent, key selection criteria include Schmitt-trigger input thresholds (VT+ = 2.0 V, VT– = 1.3 V at 3 V), 6-pin SOT-23 package compatibility, Ioff-enabled back-drive protection, and 5.5 V-tolerant inputs enabling level translation from 5 V to 3.3 V or 1.8 V domains.
Technical Context
The SN74LVC2G17DBVT implements two independent noninverting buffers with Schmitt-trigger inputs, providing distinct positive-going (VT+) and negative-going (VT–) switching thresholds to suppress input noise and prevent chatter on slow-rising signals. Its Ioff circuitry actively disables outputs when VCC = 0 V, blocking reverse current flow during hot-swap or power sequencing.
Designed for mixed-voltage system interfacing, it accepts input voltages up to 5.5 V regardless of VCC setting (1.65–5.5 V), enabling robust level translation without external components. The device operates across –40°C to 125°C and meets JESD 78 Class II latch-up performance (>100 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - supports single-supply operation across 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| Input Voltage Tolerance | Up to 5.5 V - enables direct connection to 5 V sources while powered from lower VCC (e.g., 3.3 V or 1.8 V) |
| Max Propagation Delay | 5.4 ns at VCC = 3.3 V - ensures timing compliance in high-speed digital interfaces up to ~185 MHz |
| Output Drive Strength | ±24 mA at VCC = 3.3 V - sufficient to drive multiple LVC loads or moderate PCB traces without buffering |
| Ioff Current | ±10 μA max - prevents damaging back-current during power-down, enabling safe live insertion |
| Hysteresis (ΔVT) | 1.1 V typical at VCC = 3 V - provides 700 mV noise margin between VT+ (2.0 V) and VT– (1.3 V) for reliable edge detection |
| Operating Temperature | –40°C to 125°C - qualified for industrial and extended-temperature embedded applications |
Pinout & Package
SOT-23 (DBV) 6-pin package: 2.90 mm × 1.60 mm body size, 0.95 mm max height, lead-free NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Input 1 | Noninverting Schmitt-trigger input for first buffer channel; accepts 0–5.5 V regardless of VCC |
| GND | Ground | Reference return path for all internal circuitry and output currents |
| 2A | Input 2 | Noninverting Schmitt-trigger input for second buffer channel; electrically isolated from 1A |
| 1Y | Output 1 | Buffered, hysteresis-filtered replica of 1A; drives loads up to ±24 mA at 3.3 V |
| VCC | Power Supply | Single supply rail (1.65–5.5 V); powers both buffers and enables Ioff control logic |
| 2Y | Output 2 | Buffered, hysteresis-filtered replica of 2A; independently driven with same specs as 1Y |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | VT+ = 2.0 V / VT– = 1.3 V at 3 V - eliminates false triggering from EMI or slow edges in noisy environments |
| Ioff partial-power-down | Enables hot-plug capability and prevents back-drive damage when VCC = 0 V - critical for modular systems |
| 5.5 V-tolerant inputs | Allows interface between 5 V legacy circuits and 3.3 V or 1.8 V microcontrollers without level shifters |
| NanoFree™ packaging | Die-as-package construction - reduces footprint and thermal resistance vs. standard SOT-23 (RθJA = 165°C/W) |
| Low ICC | 10 μA max quiescent current - minimizes standby power in battery-operated portable devices |
Applications
| Audio Docks: Portable | SSDs: Client and Enterprise |
|---|---|
Use Scenario: Signal conditioning of mechanical switch debouncing or analog sensor outputs feeding USB audio controllers. IC Role / Device Role / Timing Role: Dual Schmitt-trigger buffer cleans noisy button/switch transitions and converts variable-threshold analog signals into clean CMOS logic levels. Use Value: Eliminates software debounce overhead and prevents spurious interrupts caused by contact bounce or EMI coupling. | Use Scenario: Interfacing host controller GPIOs to NAND flash status lines or thermal sensors in compact SSD modules. IC Role / Device Role / Timing Role: Level-translating buffer isolates 1.8 V NAND interface from 3.3 V host MCU while adding noise immunity on shared PCB traces. Use Value: Enables reliable communication over longer trace lengths without added capacitance or signal integrity degradation. |
| TVs: LCD/Digital and HDTVs | Wireless Headsets |
Use Scenario: Conditioning IR remote receiver outputs or panel button inputs before routing to main SoC. IC Role / Device Role / Timing Role: Dual-channel Schmitt buffer rejects ambient light-induced noise on photodiode outputs and stabilizes mechanical keypad scans. Use Value: Reduces false trigger rate in consumer IR receivers operating under fluorescent lighting or sunlight exposure. | Use Scenario: Debouncing physical controls (volume, power) and cleaning RF-coupled noise on microphone bias lines. IC Role / Device Role / Timing Role: Input conditioner for low-power Bluetooth SoC GPIOs handling tactile switches and analog mic bias paths. Use Value: Maintains ultra-low sleep current (<10 μA) while ensuring glitch-free wake events and stable analog reference integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schmitt-trigger buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G17DBVR | Same die, SOT-23 package, 3000-unit tape-and-reel - differs only in packaging quantity and reel size | Identical electrical behavior and pinout; suitable for high-volume automated assembly | Select SN74LVC2G17DBVR for production runs requiring large reels; SN74LVC2G17DBVT is optimized for prototyping and low-volume builds. |
| SN74LVC1G17DBVR | Single-channel variant in same SOT-23 package - half the channel count, identical per-channel specs | Used where only one buffered Schmitt input is required; occupies same board area but delivers half the functionality | Choose SN74LVC1G17DBVR when space-constrained designs need only one channel; SN74LVC2G17DBVT provides dual-channel density in same footprint. |
Compared with SN74LVC2G17DBVR, the SN74LVC2G17DBVT offers identical performance in a smaller 250-unit reel format ideal for evaluation and pilot builds, while SN74LVC1G17DBVR trades channel count for design flexibility in single-signal applications - all three share full pin-to-pin compatibility and identical electrical characteristics.
Availability
SN74LVC2G17DBVT is available at Aetrix Electronics and suitable for audio docks, solid-state drives, and HDTV front-panel interfaces requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for SN74LVC2G17DBVT 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 delivering analog and embedded processing solutions, with over 90 years of innovation in precision analog, power management, and logic ICs.
The SN74LVC2G17DBVT belongs to TI's LVC logic family, engineered for low-voltage, high-noise-immunity digital interfacing in portable, industrial, and consumer electronics where reliability and mixed-voltage compatibility are essential.
FAQ
What is the maximum input voltage rating for SN74LVC2G17DBVT?
The SN74LVC2G17DBVT supports input voltages up to 5.5 V across its entire VCC operating range (1.65 V to 5.5 V). This 5.5 V tolerance allows direct connection to 5 V signal sources even when powered from 3.3 V or 1.8 V supplies, eliminating the need for external level-shifting components in mixed-voltage systems. Absolute maximum input rating remains 6.5 V per the datasheet's absolute maximum ratings table.
Does SN74LVC2G17DBVT support partial power-down operation?
Yes, SN74LVC2G17DBVT fully supports partial power-down via its Ioff feature. When VCC = 0 V, the Ioff circuitry disables both outputs, limiting off-state leakage to ±10 μA and preventing damaging back-current flow from live inputs or outputs into the unpowered device. This enables safe hot-swap, live insertion, and robust power sequencing in modular or field-upgradable systems.
What are the Schmitt-trigger input thresholds for SN74LVC2G17DBVT at 3.3 V supply?
At VCC = 3.3 V, the SN74LVC2G17DBVT exhibits VT+ = 2.0 V (positive-going threshold) and VT– = 1.3 V (negative-going threshold), yielding 0.7 V of hysteresis. These values are specified in the Electrical Characteristics table (Section 7.5) and ensure reliable noise rejection for signals with slow edges or high-frequency interference - critical for mechanical switch debouncing and sensor signal conditioning.
Is SN74LVC2G17DBVT pin-compatible with other packages in the same family?
No - SN74LVC2G17DBVT uses the SOT-23 (DBV) package with a specific 6-pin top-view pinout (1A–GND–2A–1Y–VCC–2Y). While functionally identical to SC70 (DCK), SON (DRY/DSF), and DSBGA (YZP) variants, these packages have different pin assignments and footprints. Only other DBV-packaged variants (e.g., SN74LVC2G17DBVR) share identical pinout and mechanical compatibility.
What is the typical propagation delay of SN74LVC2G17DBVT at 3.3 V?
The SN74LVC2G17DBVT has a maximum propagation delay (tpd) of 5.4 ns at VCC = 3.3 V, TA = 25°C, with typical values lower depending on load capacitance. This specification is confirmed in Section 7.6 (Switching Characteristics) of the datasheet and ensures timing integrity in high-speed digital paths such as GPIO expansion, status line buffering, and clock distribution where sub-6 ns latency is required.
SN74LVC2G17DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- 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:
- Schmitt Trigger
- 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-23-6
SN74LVC2G17DBVT FAQ
1.How can I place an order for SN74LVC2G17DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC2G17DBVT 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 SN74LVC2G17DBVT reliable?
The price and inventory of SN74LVC2G17DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC2G17DBVT is usually 5 days.
3.What payment methods are accepted for SN74LVC2G17DBVT?
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4.How is shipping managed for SN74LVC2G17DBVT?
SN74LVC2G17DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC2G17DBVT 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 SN74LVC2G17DBVT?
For technical support, including SN74LVC2G17DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC2G17DBVT requirements.
6.How does Aetrix verify that SN74LVC2G17DBVT is sourced from the original manufacturer or authorized distributors?
All SN74LVC2G17DBVT 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 SN74LVC2G17DBVT meets industry standards.
7.What is the process for return or replacement of SN74LVC2G17DBVT?
All SN74LVC2G17DBVT units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC2G17DBVT, 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 SN74LVC2G17DBVT part is unused and in its original packaging.
Return procedure for SN74LVC2G17DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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