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Texas Instruments SN74LVC3G17DCTRG4
- Part No.:
- SN74LVC3G17DCTRG4
- Manufacturer:
- Texas Instruments
- Package:
- 8-LSSOP, 8-MSOP (0.110", 2.80mm Width)
- Datasheet:
-
SN74LVC3G17DCTRG4.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SM8
- Quantity:
- Payment:
- Shipping:
Inventory:260
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Product details
Overview
SN74LVC3G17DCTRG4 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 in partial-power-down systems. It is used in audio docks, SSDs, and portable tablets for noise-immune signal conditioning.
For engineers reviewing the SN74LVC3G17DCTRG4 datasheet, SN74LVC3G17DCTRG4 pinout, SN74LVC3G17DCTRG4 application, or SN74LVC3G17DCTRG4 equivalent, key selection criteria include input hysteresis thresholds (VT+ = 1.5–3.33 V, VT– = 0.39–2.29 V), NanoFree™ SSOP-8 package compatibility, 10-μA max ICC power consumption, and Ioff-enabled back-drive protection during power sequencing.
Technical Context
This device implements three independent noninverting Schmitt-trigger buffers in a single 8-pin SSOP package. Each channel features asymmetric input thresholds (VT+ > VT–) enabling robust noise rejection on slow or noisy digital signals, with hysteresis ranging from 0.56 V at 3 V to 1.11 V at 5.5 V.
It supports mixed-voltage interfacing via 5.5-V-tolerant inputs and operates across –40°C to 125°C. The Ioff circuitry actively disables outputs during power-down, blocking reverse current flow and enabling hot-plug capability without external isolation components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 5.5 V - Enables direct interface with 1.8-V, 2.5-V, 3.3-V, and 5-V logic domains. |
| tpd (max) | 5.4 ns at 3.3 V - Supports high-speed signal conditioning in timing-critical paths like button debouncing or sensor interface. |
| Output Drive | ±24 mA at 3.3 V - Sufficient to directly drive LEDs, small capacitive loads, or multiple CMOS inputs without buffering. |
| Hysteresis ΔVT | 0.56–1.11 V - Provides noise immunity against EMI and ground bounce in portable audio and SSD control lines. |
| Ioff Current | ±10 μA max - Ensures safe live insertion and prevents back-current damage when VCC is off while inputs remain active. |
| Input Voltage Tolerance | Up to 5.5 V - Allows connection to higher-voltage peripherals (e.g., 5-V sensors) without level-shifting circuitry. |
| ICC (max) | 10 μA - Enables ultra-low static power in battery-powered devices such as wireless headsets and PDAs. |
Pinout & Package
SN74LVC3G17DCTRG4 uses an 8-pin SSOP (DCT) package measuring 2.95 mm × 2.80 mm, with gull-wing leads and RoHS-compliant NiPdAu finish. It is rated MSL Level-1 and supports reflow up to 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 2A, 3A | Independent Input | Three separate Schmitt-trigger inputs accepting 0–5.5 V; each must be tied to VCC or GND if unused. |
| 1Y, 2Y, 3Y | Noninverting Output | Three buffered, hysteresis-enhanced outputs driving CMOS loads; no internal pull-ups/downs. |
| GND (Pin 4) | Ground Reference | Primary return path for all I/O and supply currents; requires low-impedance PCB connection. |
| VCC (Pin 8) | Power Supply | Single supply rail powering all three buffers; requires local 0.1-μF bypass capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | VT+ and VT– thresholds provide ≥0.56 V hysteresis, eliminating chatter on slow-rising signals like mechanical switch inputs. |
| Ioff partial-power-down | Disables outputs when VCC = 0 V, preventing back-driving and enabling hot-swap in modular systems like docking stations. |
| NanoFree™ packaging | Die-as-package construction reduces footprint and thermal resistance (RθJA = 220°C/W), ideal for space-constrained portable designs. |
| 5.5-V tolerant inputs | Accepts overvoltage inputs up to 5.5 V regardless of VCC setting, simplifying interconnection with legacy 5-V peripherals. |
| Latch-up immunity | Exceeds 100 mA per JESD 78 Class II, ensuring robust operation in electrically noisy environments like AV receivers and HDTVs. |
Applications
| Audio Dock Signal Conditioning | SSD Power-On Sequencing |
|---|---|
Use Scenario: Clean switching of USB/line-in detection signals in portable audio docks subject to contact bounce and EMI. IC Role / Device Role / Timing Role: Triple Schmitt-trigger buffer providing noise-immune signal conditioning for microcontroller GPIO inputs. Use Value: Eliminates false triggers caused by mechanical switch bounce or RF coupling, reducing firmware debounce overhead and improving user response time. | Use Scenario: Reliable enable/control signaling between PMIC and SSD controller during cold-start and sleep/wake transitions. IC Role / Device Role / Timing Role: Level-translating and hysteresis-enhanced buffer isolating low-voltage control logic from higher-voltage power rails. Use Value: Prevents metastability and glitch propagation during voltage ramping, ensuring deterministic power-state transitions and NAND flash integrity. |
| Wireless Peripheral Button Interface | Tablet System Reset Management |
Use Scenario: Debouncing physical buttons in wireless keyboards/mice where battery life and ESD resilience are critical. IC Role / Device Role / Timing Role: Low-power Schmitt-trigger buffer converting noisy mechanical inputs into clean digital edges for SoC interrupt inputs. Use Value: Achieves <10 μA quiescent current while rejecting >2000-V HBM ESD events, extending battery runtime and field reliability. | Use Scenario: Managing reset assertion timing and noise immunity for application processors in enterprise tablets exposed to thermal cycling and board flex. IC Role / Device Role / Timing Role: Hysteresis-equipped buffer shaping system reset pulses and decoupling noisy reset sources from sensitive processor pins. Use Value: Guarantees monotonic reset deassertion under varying VCC ramp rates and ambient noise, preventing boot failures in industrial deployments. |
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 version in SC70-5 package; identical electrical specs but reduced channel count and smaller footprint. | Used where only one Schmitt buffer is needed and board space is extremely constrained (e.g., wearables). | Select when channel count can be reduced and layout area is prioritized over integration density. |
| MC74VHC1GT17DTT1G | Pin-compatible single-channel alternative with wider VCC range (2–5.5 V); lacks Ioff and has higher ICC (max 20 μA). | Suitable for cost-sensitive consumer electronics where partial-power-down is not required. | Choose when Ioff is unnecessary and lower unit cost outweighs missing hot-swap capability. |
Compared with SN74LVC1G17DCKR and MC74VHC1GT17DTT1G, SN74LVC3G17DCTRG4 delivers triple-channel integration in a compact SSOP-8, full Ioff support for live insertion, and guaranteed operation down to 1.65 V-making it optimal for multi-signal conditioning in portable, thermally constrained, and hot-pluggable systems.
Availability
SN74LVC3G17DCTRG4 is available at Aetrix Electronics and suitable for audio docks, solid-state drives, and wireless peripherals requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for SN74LVC3G17DCTRG4 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 specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and logic solutions.
SN74LVC3G17DCTRG4 belongs to the LVC family of low-voltage CMOS logic devices designed for high-speed, low-power, mixed-voltage interfacing in portable, consumer, and industrial electronics.
FAQ
What is the maximum propagation delay of SN74LVC3G17DCTRG4 at 3.3 V?
The maximum propagation delay (tpd) of SN74LVC3G17DCTRG4 is 5.4 ns at VCC = 3.3 V, CL = 30 pF or 50 pF, and TA = –40°C to 85°C. This value is measured from input transition (1.65 V) to output transition (1.65 V) under standard load conditions and reflects worst-case timing performance for reliable synchronous design margining in SN74LVC3G17DCTRG4-based circuits.
Does SN74LVC3G17DCTRG4 support partial-power-down operation?
Yes, SN74LVC3G17DCTRG4 fully supports partial-power-down operation via its Ioff circuitry. When VCC = 0 V, the outputs enter a high-impedance state and leakage current is limited to ±10 μA, preventing damaging back-current flow from live inputs. This feature enables safe hot-plug functionality in dockable systems and modular SSD enclosures using SN74LVC3G17DCTRG4.
What are the input threshold voltages for SN74LVC3G17DCTRG4 at 3.3 V supply?
At VCC = 3.3 V, SN74LVC3G17DCTRG4 has a positive-going input threshold (VT+) of 1.5 V (min) to 1.87 V (typ) and a negative-going threshold (VT–) of 0.84 V (min) to 1.14 V (typ), yielding a hysteresis (ΔVT) of 0.56 V (min) to 0.87 V (typ). These values are confirmed in the Electrical Characteristics table of the SCES470F datasheet and apply directly to SN74LVC3G17DCTRG4.
Can SN74LVC3G17DCTRG4 inputs tolerate 5-V signals when powered from 3.3 V?
Yes, SN74LVC3G17DCTRG4 inputs are 5.5-V tolerant regardless of VCC level. When powered from 3.3 V, each input (1A, 2A, 3A) safely accepts DC voltages up to 5.5 V without damage or functional degradation. This allows direct interfacing with 5-V sensors, switches, or legacy peripherals in mixed-voltage systems using SN74LVC3G17DCTRG4.
What package type and dimensions does SN74LVC3G17DCTRG4 use?
SN74LVC3G17DCTRG4 uses an 8-pin SSOP (DCT) package with nominal body dimensions of 2.95 mm × 2.80 mm and gull-wing lead form. It is RoHS-compliant, MSL Level-1 rated, and features NiPdAu lead finish. This package is distinct from the VSSOP (DCU) and DSBGA (YZP) variants and is verified in TI's orderable addendum for SN74LVC3G17DCTRG4.
SN74LVC3G17DCTRG4 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:
- Discontinued at Digi-Key
- 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
SN74LVC3G17DCTRG4 FAQ
1.How can I place an order for SN74LVC3G17DCTRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC3G17DCTRG4 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 SN74LVC3G17DCTRG4 reliable?
The price and inventory of SN74LVC3G17DCTRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC3G17DCTRG4 is usually 5 days.
3.What payment methods are accepted for SN74LVC3G17DCTRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC3G17DCTRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC3G17DCTRG4?
SN74LVC3G17DCTRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC3G17DCTRG4 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 SN74LVC3G17DCTRG4?
For technical support, including SN74LVC3G17DCTRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC3G17DCTRG4 requirements.
6.How does Aetrix verify that SN74LVC3G17DCTRG4 is sourced from the original manufacturer or authorized distributors?
All SN74LVC3G17DCTRG4 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 SN74LVC3G17DCTRG4 meets industry standards.
7.What is the process for return or replacement of SN74LVC3G17DCTRG4?
All SN74LVC3G17DCTRG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC3G17DCTRG4, 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 SN74LVC3G17DCTRG4 part is unused and in its original packaging.
Return procedure for SN74LVC3G17DCTRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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