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Texas Instruments SN74LVC3G17DCTR
- Part No.:
- SN74LVC3G17DCTR
- Manufacturer:
- Texas Instruments
- Package:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
- Datasheet:
-
SN74LVC3G17DCTR.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SM8
- Quantity:
- Payment:
- Shipping:
Inventory:27,034
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Product details
Overview
SN74LVC3G17DCTR from Texas Instruments is a triple Schmitt-trigger buffer IC operating from 1.65 V to 5.5 V, performing Y = A logic with hysteresis (ΔVT = 0.56–1.11 V), 5.4 ns max tpd at 3.3 V, ±24-mA output drive, and Ioff support for live insertion. It serves signal conditioning in USB interface power sequencing, button debouncing, and noise-immune sensor interfacing.
For engineers reviewing the SN74LVC3G17DCTR datasheet, SN74LVC3G17DCTR pinout, SN74LVC3G17DCTR application, or SN74LVC3G17DCTR equivalent, key selection criteria include VCC range compatibility (1.65–5.5 V), Schmitt input thresholds (VT+ up to 3.33 V, VT– down to 0.39 V), NanoFree™ SSOP-8 package footprint, and Ioff-enabled partial-power-down behavior in mixed-voltage systems.
Technical Context
This device implements three independent noninverting buffers with Schmitt-trigger inputs-each with distinct positive-going (VT+) and negative-going (VT–) thresholds enabling noise rejection on slow or noisy signals. Its Ioff circuitry actively disables outputs during power-down, blocking back-current flow when VCC = 0 V.
The NanoFree™ DCT package uses the silicon die as the package body (2.95 mm × 2.80 mm), eliminating bond wires and mold compound to reduce parasitics. All inputs tolerate 5.5 V regardless of VCC, supporting mixed-voltage level translation without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables operation across 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains |
| Max Propagation Delay | 5.4 ns at VCC = 3.3 V, CL = 30/50 pF - Supports high-speed signal conditioning up to ~185 MHz toggle rate |
| Input Threshold Hysteresis | 0.56 V to 1.11 V - Rejects noise spikes ≤1.11 V peak-to-peak on input lines |
| Output Drive Strength | ±24 mA at VCC = 3.3 V - Directly drives LEDs, small relays, or multiple 74LVC inputs without buffering |
| Ioff Current | ±10 μA max at VCC = 0 V - Prevents backflow damage during hot-swap or partial system power-down |
| ESD Rating | ±2000 V HBM - Meets industrial-grade ESD immunity per JESD22-A114 |
| Operating Temperature | –40°C to +125°C - Qualified for automotive under-hood and industrial control environments |
Pinout & Package
SN74LVC3G17DCTR is housed in an 8-pin SSOP (DCT) package measuring 2.95 mm × 2.80 mm, with gull-wing leads and 0.65-mm pitch. The NanoFree™ construction eliminates traditional packaging layers, reducing thermal resistance (RθJA = 220°C/W) and parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A | Input 1 | Schmitt-triggered noninverting input for Buffer 1; accepts 0–5.5 V regardless of VCC |
| 1Y | Output 1 | Noninverting buffered output; drives loads up to ±24 mA at 3.3 V |
| 2A | Input 2 | Schmitt-triggered noninverting input for Buffer 2; electrically isolated from other channels |
| 2Y | Output 2 | Noninverting buffered output; supports independent load switching |
| 3A | Input 3 | Schmitt-triggered noninverting input for Buffer 3; threshold hysteresis applies identically |
| 3Y | Output 3 | Noninverting buffered output; shares VCC/GND rails but no internal coupling |
| GND | Ground | Reference return path for all I/O and supply currents; must be low-impedance |
| VCC | Power Supply | Single supply rail (1.65–5.5 V); powers all three buffers and Ioff circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables reliable switching on slow-rising signals (e.g., mechanical switches, RC networks) with 0.56–1.11 V hysteresis |
| Ioff partial-power-down | Disables outputs and blocks current backflow when VCC = 0 V - essential for hot-plug and multi-rail systems |
| 5.5-V tolerant inputs | Accepts 5.5-V signals at any valid VCC (1.65–5.5 V), eliminating level-shifters in mixed-voltage designs |
| NanoFree™ DCT package | Die-as-package construction reduces size (2.95 × 2.80 mm), weight, and parasitic inductance vs. standard SSOP |
| Low ICC | 10 μA max quiescent current - suitable for battery-backed or always-on monitoring circuits |
Applications
| USB Power Button Interface | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Debounces mechanical power buttons connected to USB-C port controllers requiring clean, glitch-free enable signals. IC Role / Device Role / Timing Role: SN74LVC3G17DCTR acts as a noise-immune buffer between the physical button and the controller's enable input, using Schmitt thresholds to reject contact bounce. Use Value: Eliminates need for external RC filters or firmware debouncing; ensures single, deterministic edge per press even with >10 ms bounce duration. | Use Scenario: Conditions analog sensor outputs (e.g., thermistor voltage dividers, hall-effect switches) before feeding into ADC reference or comparator inputs. IC Role / Device Role / Timing Role: SN74LVC3G17DCTR provides hysteresis-based thresholding and drive strength to interface millivolt-level sensor signals with digital logic rails. Use Value: Rejects EMI-induced transients on long sensor traces; maintains stable logic state despite ±50 mV noise on input. |
| Audio Dock Status Indication | SSD Power Sequencing Control |
Use Scenario: Drives LED indicators in portable audio docks that detect connection status via resistive ID pins on 3.5-mm jacks or USB-A ports. IC Role / Device Role / Timing Role: SN74LVC3G17DCTR buffers and level-translates detection signals (0–5 V) to drive 3.3-V microcontroller GPIOs or discrete LEDs. Use Value: Single-device solution replaces discrete transistor + resistor networks; supports direct 5-V tolerant sensing and 24-mA LED drive. | Use Scenario: Controls power-enable sequencing for NAND flash and controller ICs in client SSDs, where precise timing and rail isolation are critical. IC Role / Device Role / Timing Role: SN74LVC3G17DCTR gates enable signals between 1.2-V, 1.8-V, and 3.3-V power domains using Ioff to prevent backfeed during staggered ramp-up. Use Value: Guarantees safe power-up order without risk of latch-up or cross-rail current; operates across full SSD temperature range (–40°C to +125°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt-trigger buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DCKR | Single-channel variant in SC70-5 package; identical electrical specs but only one buffer | Requires three separate placements for triple functionality; higher board area and assembly cost | Choose when space allows discrete placement or channel independence is required |
| NC7SZ17P5X | Same function but in SC70-5; lower max drive (±24 mA at 3.3 V same), slightly higher tpd (6.5 ns) | Limited to commercial temp range (–40°C to +85°C); lacks Ioff specification | Acceptable for cost-sensitive consumer designs without hot-swap or extended temperature needs |
Compared with SN74LVC3G17DCTR, SN74LVC1G17DCKR increases PCB area and assembly complexity for triple-buffer use, while NC7SZ17P5X sacrifices Ioff protection and extended temperature rating-making SN74LVC3G17DCTR the only choice for automotive or industrial hot-swap applications requiring guaranteed back-drive immunity.
Availability
SN74LVC3G17DCTR is available at Aetrix Electronics and suitable for USB interface design, industrial sensor signal conditioning, audio dock status indication, and SSD power sequencing requiring stable component supply across automotive and industrial temperature ranges.
Supply support for SN74LVC3G17DCTR 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 company delivering analog and embedded processing solutions, with leadership in precision analog, power management, and logic ICs.
The SN74LVC3G17DCTR belongs to TI's LVC logic family, designed for low-voltage, high-noise-immunity digital interfacing in space-constrained, mixed-rail systems requiring robust Schmitt-trigger behavior and Ioff safety.
FAQ
What is the maximum supply voltage for SN74LVC3G17DCTR?
The absolute maximum supply voltage for SN74LVC3G17DCTR is 6.5 V, but the recommended operating range is 1.65 V to 5.5 V. Operation above 5.5 V risks permanent damage, while below 1.65 V may cause unreliable Schmitt thresholds or output drive. All specifications-including propagation delay, hysteresis, and Ioff-are guaranteed only within the 1.65–5.5 V range per the SCES470F datasheet.
Does SN74LVC3G17DCTR support hot-swap or live insertion?
Yes, SN74LVC3G17DCTR supports live insertion via its Ioff feature. When VCC = 0 V, the outputs enter high-impedance state and block current backflow up to ±10 μA, preventing damage from back-driving by powered downstream circuits. This is validated per JESD78 Class II latch-up testing and enables safe insertion into partially powered backplanes or modular systems.
What are the input voltage thresholds for SN74LVC3G17DCTR at 3.3 V supply?
At VCC = 3.3 V, SN74LVC3G17DCTR has VT+ = 1.50–1.87 V (positive-going threshold) and VT– = 0.84–1.14 V (negative-going threshold), yielding hysteresis ΔVT = 0.56–0.87 V. These values are measured across –40°C to +125°C and ensure reliable switching on signals with slow edges or superimposed noise up to ±435 mV peak-to-peak.
Can SN74LVC3G17DCTR be used for level translation between 5-V and 3.3-V logic?
Yes, SN74LVC3G17DCTR supports bidirectional level translation: its inputs accept up to 5.5 V regardless of VCC, so a 5-V signal applied to 1A while VCC = 3.3 V produces a clean 3.3-V output at 1Y. However, it does not translate 3.3-V inputs to 5-V outputs - output swing is rail-to-rail (0 V to VCC), so VCC must be set to the desired output voltage level.
Is the NanoFree™ package of SN74LVC3G17DCTR compatible with standard SSOP-8 reflow profiles?
Yes, SN74LVC3G17DCTR in the DCT (NanoFree™ SSOP-8) package is rated MSL Level-1 with unlimited floor life and peak reflow tolerance of 260°C. Its thermal profile matches standard SSOP-8 footprints, and the 2.95 mm × 2.80 mm body size and 0.65-mm lead pitch are fully compatible with existing SSOP-8 stencil apertures and pick-and-place tooling.
SN74LVC3G17DCTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 3
- 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:
- SM8
SN74LVC3G17DCTR FAQ
1.How can I place an order for SN74LVC3G17DCTR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC3G17DCTR 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 SN74LVC3G17DCTR reliable?
The price and inventory of SN74LVC3G17DCTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC3G17DCTR is usually 5 days.
3.What payment methods are accepted for SN74LVC3G17DCTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC3G17DCTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC3G17DCTR?
SN74LVC3G17DCTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC3G17DCTR 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 SN74LVC3G17DCTR?
For technical support, including SN74LVC3G17DCTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC3G17DCTR requirements.
6.How does Aetrix verify that SN74LVC3G17DCTR is sourced from the original manufacturer or authorized distributors?
All SN74LVC3G17DCTR 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 SN74LVC3G17DCTR meets industry standards.
7.What is the process for return or replacement of SN74LVC3G17DCTR?
All SN74LVC3G17DCTR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC3G17DCTR, 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 SN74LVC3G17DCTR part is unused and in its original packaging.
Return procedure for SN74LVC3G17DCTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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