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Texas Instruments SN74LVC1G17DBVT
- Part No.:
- SN74LVC1G17DBVT
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
SN74LVC1G17DBVT.pdf
- Description:
- IC BUF NON-INVERT 5.5V SOT23-5
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SN74LVC1G17DBVT from Texas Instruments is a single Schmitt-trigger buffer IC designed for 1.65V to 5.5V VCC operation, delivering ±24mA output drive at 3.3V, 4.6ns max propagation delay (tpd) at 3.3V/CL=15pF, and 5.5V-tolerant inputs. It performs Y = A logic function and is used in signal conditioning for noisy or slow-rising digital interfaces in consumer audio and display systems.
For engineers reviewing the SN74LVC1G17DBVT datasheet, SN74LVC1G17DBVT pinout, SN74LVC1G17DBVT application, or SN74LVC1G17DBVT equivalent, key selection criteria include its Schmitt-trigger hysteresis (ΔVT = 0.36–1.04V), Ioff support for live insertion, ultra-low ICC (≤10μA), and SOT-23-5 (DBV) package compatibility with space-constrained PCB layouts.
Technical Context
The SN74LVC1G17DBVT implements a noninverting Schmitt-trigger buffer with distinct positive-going (VT+) and negative-going (VT−) input thresholds-e.g., 1.48V/0.89V at 3V VCC, yielding 0.51V hysteresis. This enables robust noise immunity on slow or degraded signals without external RC components.
Its CMOS design supports voltage translation: inputs tolerate up to 5.5V regardless of VCC (1.65–5.5V), allowing interfacing between higher-voltage legacy logic and lower-voltage system domains. The Ioff feature disables outputs when VCC = 0V, preventing back-drive current and enabling partial-power-down operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65V to 5.5V - Enables direct use across 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters. |
| tpd (max) | 4.6ns at VCC = 3.3V, CL = 15pF - Supports clean signal buffering up to ~100MHz clock/data rates in low-capacitance paths. |
| IO Drive | ±24mA at VCC = 3.3V - Sufficient to drive multiple LVC loads or moderate PCB traces without external buffers. |
| Input Tolerance | Up to 5.5V independent of VCC - Allows safe interfacing with 5V peripherals while operating at 1.8V or 2.5V core supply. |
| Hysteresis ΔVT | 0.36V (min) at 1.65V VCC; 1.04V (max) at 5.5V VCC - Rejects noise spikes ≤1V on input lines in industrial or EMI-prone environments. |
| ICC (max) | 10μA over full temperature range - Enables always-on signal conditioning in battery-powered devices with negligible quiescent drain. |
| Ioff | ±10μA at VCC = 0V - Permits hot-plug capability and prevents bus contention during power sequencing in multi-rail systems. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9mm × 2.8mm body size, 2.9mm × 1.6mm footprint, 0.95mm max height, lead pitch 0.95mm. RoHS-compliant, NIPDAU/SN finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC (No internal connection) | Unbonded pad - must be left floating or grounded per layout best practice; no electrical function. |
| 2 | A (Input) | Single Schmitt-trigger input - accepts 0–5.5V; threshold hysteresis enables reliable edge detection on slow/noisy signals. |
| 3 | GND | Ground reference - connects to system ground plane; critical for noise immunity and stable threshold behavior. |
| 4 | Y (Output) | Noninverting buffered output - delivers rail-to-rail CMOS levels with ±24mA drive strength at 3.3V. |
| 5 | VCC | Power supply - supplies internal logic and output stage; bypass capacitor (0.1μF) required adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger input | Guaranteed hysteresis (0.36–1.04V) eliminates chatter on slow edges and rejects noise without external components. |
| 5.5V-tolerant inputs | Operates with VCC as low as 1.65V while accepting 5V inputs - enables seamless voltage translation in mixed-supply systems. |
| Ioff protection | Outputs enter high-impedance state when VCC = 0V - prevents back-current flow during hot-swap or power-down sequences. |
| Ultra-low ICC | ≤10μA max ICC across –40°C to 125°C - suitable for always-on monitoring circuits in energy-sensitive applications. |
| ESD robustness | ±2000V HBM, ±1000V CDM - exceeds JEDEC standards for handling and board-level reliability in manufacturing and field use. |
Applications
| Audio Signal Conditioning | Display Interface Buffering |
|---|---|
|
Use Scenario: Cleaning noisy button debounce or IR receiver signals in portable audio docks and wireless headsets. IC Role / Device Role / Timing Role: Single Schmitt-trigger buffer providing noise-immune signal shaping before microcontroller GPIO sampling. Use Value: Eliminates need for external RC filters or firmware debouncing, reducing BOM count and improving response time consistency. |
Use Scenario: Driving HDMI or LVDS panel enable/control lines in LCD/LED TVs and tablets where signal integrity degrades over flex cables. IC Role / Device Role / Timing Role: Noninverting buffer with ±24mA drive ensuring fast, monotonic transitions on capacitive display control nets. Use Value: Prevents false triggering due to ringing or undershoot, increasing display startup reliability and reducing field returns. |
| SSD Power Sequencing | Industrial Sensor Interface |
|
Use Scenario: Enabling 12V DC/DC converters in client SSDs using 3.3V controller logic, requiring robust enable signal conditioning. IC Role / Device Role / Timing Role: Schmitt-trigger buffer isolating low-voltage enable logic from noisy power rail switching transients. Use Value: Ensures clean, jitter-free enable assertion despite voltage droop or coupling noise, preventing premature or failed power-up. |
Use Scenario: Interfacing analog sensor outputs (e.g., thermistors, potentiometers) to ADC reference or comparator inputs in factory automation. IC Role / Device Role / Timing Role: Input conditioner converting slow-varying analog-derived logic levels into sharp, noise-resistant digital transitions. Use Value: Increases effective resolution of threshold-based sensing by rejecting EMI-induced false triggers in electrically noisy plant floors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DCKT | Same silicon, SC70-5 package (1.6mm × 1.6mm); 0.65mm pitch; 30% smaller footprint than DBV. | Better suited for ultra-dense layouts where board area is constrained; thermal resistance (RθJA = 350°C/W) is 2% lower than DBV. | Select when minimizing PCB real estate is critical and reflow profile accommodates finer-pitch SC70. |
| MC74LCX1G17DTT1G | ON Semiconductor part; identical function but wider VCC range (2.0–5.5V); no 1.65V support; 5.5V input tolerance retained. | Lacks 1.65V operation - unsuitable for 1.8V-only systems; otherwise matches in drive, speed, and hysteresis specs. | Choose only if sourcing diversification is required and system VCC ≥2.0V; verify layout compatibility with different marking and thermal pad. |
Compared with SN74LVC1G17DCKT, the SN74LVC1G17DBVT offers easier hand-soldering and higher thermal mass; versus MC74LCX1G17DTT1G, it supports lower-voltage operation critical for modern low-power SoC interfaces - making SN74LVC1G17DBVT optimal for cost-sensitive, 1.65–3.3V embedded designs.
Availability
SN74LVC1G17DBVT is available at Aetrix Electronics and suitable for consumer audio docks, SSD power management, and industrial sensor interface applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74LVC1G17DBVT 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 SN74LVC1G17DBVT belongs to TI's LVC (Low-Voltage CMOS) logic portfolio, engineered for voltage translation, noise immunity, and space-constrained signal conditioning in portable and industrial electronics.
FAQ
What is the minimum operating voltage for the SN74LVC1G17DBVT?
The SN74LVC1G17DBVT operates down to 1.65V VCC, as specified in the Recommended Operating Conditions table. At this voltage, it maintains full functionality including Schmitt-trigger hysteresis, 5.5V input tolerance, and guaranteed tpd ≤9.9ns (CL = 15pF). Operation below 1.65V is not characterized and may result in undefined behavior or failure to meet timing or threshold specifications.
Does the SN74LVC1G17DBVT support hot-swap or live insertion?
Yes, the SN74LVC1G17DBVT supports live insertion via its Ioff feature. When VCC = 0V, the outputs enter high-impedance state and Ioff limits leakage to ±10μA, preventing damaging back-current flow from powered downstream circuitry into the unpowered SN74LVC1G17DBVT. This enables safe insertion into live backplanes or modular systems.
What is the input hysteresis voltage (ΔVT) of the SN74LVC1G17DBVT at 3.3V VCC?
At VCC = 3.3V, the SN74LVC1G17DBVT exhibits a typical hysteresis of 0.71V (VT+ = 1.92V, VT− = 1.20V), with a guaranteed minimum of 0.51V and maximum of 0.83V across –40°C to 125°C. This hysteresis ensures reliable rejection of noise spikes up to ~0.5V on the input line without oscillation or metastability.
Can the SN74LVC1G17DBVT drive a 50pF load at 10MHz?
Yes, the SN74LVC1G17DBVT can reliably drive a 50pF load at 10MHz. Its maximum tpd remains ≤6.5ns (–40°C to 85°C, CL = 50pF) and ICC stays below 1.5μA at that frequency and VCC = 3.3V. Layout best practices-such as short traces, ground return paths, and local 0.1μF bypassing-are recommended to maintain signal integrity and minimize ringing.
Is the NC pin (Pin 1) on the SN74LVC1G17DBVT required to be connected?
No, Pin 1 of the SN74LVC1G17DBVT is a no-connect (NC) terminal with no internal bond wire or circuit connection. It may be left floating, tied to GND, or routed as a test point-TI documentation confirms no electrical impact either way. However, grounding Pin 1 improves mechanical stability and reduces potential EMI coupling in high-frequency layouts.
SN74LVC1G17DBVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- 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-23-5
SN74LVC1G17DBVT FAQ
1.How can I place an order for SN74LVC1G17DBVT through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC1G17DBVT 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 SN74LVC1G17DBVT reliable?
The price and inventory of SN74LVC1G17DBVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G17DBVT is usually 5 days.
3.What payment methods are accepted for SN74LVC1G17DBVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC1G17DBVT transactions.
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4.How is shipping managed for SN74LVC1G17DBVT?
SN74LVC1G17DBVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC1G17DBVT 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 SN74LVC1G17DBVT?
For technical support, including SN74LVC1G17DBVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G17DBVT requirements.
6.How does Aetrix verify that SN74LVC1G17DBVT is sourced from the original manufacturer or authorized distributors?
All SN74LVC1G17DBVT 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 SN74LVC1G17DBVT meets industry standards.
7.What is the process for return or replacement of SN74LVC1G17DBVT?
All SN74LVC1G17DBVT units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G17DBVT, 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 SN74LVC1G17DBVT part is unused and in its original packaging.
Return procedure for SN74LVC1G17DBVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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