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Home > Products > Integrated Circuits (ICs) > Logic > Buffers, Drivers, Receivers, Transceivers

Texas Instruments SN74LVC1G17QDCKRQ1

Name: SN74LVC1G17QDCKRQ1
Brand: Texas Instruments
SKU: SN74LVC1G17QDCKRQ1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVC1G17QDCKRQ1

Manufacturer:: Texas Instruments

Category:: Buffers, Drivers, Receivers, Transceivers

Package:: 5-TSSOP, SC-70-5, SOT-353

Datasheet:: SN74LVC1G17QDCKRQ1.pdf

Description:: IC BUF NON-INVERT 5.5V SC70-5

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Product details

Overview

SN74LVC1G17QDCKRQ1 from Texas Instruments is an automotive-qualified single Schmitt-trigger buffer IC performing Y = A logic, operating from 1.65V to 5.5V V_CC, with 5.5V-tolerant inputs, 8ns max propagation delay at 3.3V, ±24mA output drive, and I_off support for live insertion and partial-power-down. It enables robust signal conditioning in noisy or slow-rising digital interfaces within infotainment and power management subsystems.

For engineers reviewing the SN74LVC1G17QDCKRQ1 datasheet, SN74LVC1G17QDCKRQ1 pinout, SN74LVC1G17QDCKRQ1 application, or SN74LVC1G17QDCKRQ1 equivalent, key selection criteria include Schmitt-trigger hysteresis (0.26–1.32V), 5-pin SC-70 (DCK) package compatibility, automotive temperature range (–40°C to 125°C), I_off back-drive protection, and 5.5V input tolerance enabling level translation in mixed-voltage systems.

Technical Context

This CMOS Schmitt-trigger buffer implements noise-immune signal regeneration via distinct positive-going (V_T+) and negative-going (V_T−) input thresholds-ranging from 0.23V to 3.43V depending on V_CC-yielding hysteresis (ΔV_T) of 0.26V to 1.32V. Its I_off circuitry actively disables outputs when V_CC = 0V, preventing current backflow during hot-swap or partial-power-down sequences.

The device delivers rail-to-rail output swing with ±24mA drive capability at 3.3V while maintaining ultra-low static ICC ≤ 20μA across 1.65–5.5V operation. Input voltage tolerance up to 5.5V allows interfacing with higher-voltage logic without external level shifters, supporting down-translation in multi-rail automotive ECUs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65V to 5.5V - Enables operation across automotive low-voltage (1.8V/2.5V) and legacy 3.3V/5V domains.
Propagation Delay (t_pd)	Max 8ns at 3.3V - Supports clean signal edge regeneration up to ~100MHz clock/data rates.
Input Voltage Tolerance	Up to 5.5V - Allows direct connection to 5V logic or analog sensors without clamping diodes or resistors.
Hysteresis (ΔV_T)	0.26V to 1.32V - Rejects noise spikes ≤1.32V on slow or noisy lines (e.g., push-button, sensor outputs).
Output Drive	±24mA at 3.3V - Drives multiple LVC loads or moderate capacitive loads (e.g., PCB traces, ESD protection networks).
I_off	Active at V_CC = 0V - Prevents back-driving and latch-up during board hot-plug or power sequencing.
ESD Rating	±2000V HBM, ±1000V CDM - Meets AEC-Q100-002/011 for automotive reliability in harsh environments.

Pinout & Package

SN74LVC1G17QDCKRQ1 is packaged in a 5-pin SC-70 (DCK) outline measuring 2.0mm × 2.1mm (body: 2.0mm × 1.25mm), optimized for space-constrained automotive modules. Pin 1 is marked by a dot or beveled corner per JEDEC MO-178.

Pin/Terminal	Circuit Role	Design Meaning
1	Input (A)	Single Schmitt-trigger input accepting 0–5.5V; threshold hysteresis enables noise immunity on slow edges.
2	GND	Ground reference for all internal circuitry and output return path; must be low-impedance for stable switching.
3	Y	Non-inverting buffered output; drives loads up to ±24mA while maintaining rail-to-rail swing.
4	N.C.	No internal connection - left unconnected; no routing or termination required.
5	V_CC	Power supply input (1.65–5.5V); requires local 0.1μF bypass capacitor placed adjacent to pin.

Key Features

Feature	Design Value
Schmitt-trigger input	Provides 0.26–1.32V hysteresis to reject noise on slow-rising signals (e.g., mechanical switches, sensor outputs).
5.5V-tolerant inputs	Enables direct interface with 5V microcontrollers or analog sensors without external level-shifting components.
I_off protection	Disables outputs when V_CC = 0V, eliminating back-drive current during hot-insertion or partial power-down.
Automotive qualification	AEC-Q100 Grade 1 (–40°C to 125°C) ensures reliability in engine control, infotainment, and ADAS subsystems.
Low static power	ICC ≤ 20μA across full V_CC range reduces quiescent load on battery-backed or low-power domains.

Applications

Infotainment Signal Conditioning	Automotive Power Sequencing
Use Scenario: Buffering and cleaning slow-rising button press or rotary encoder signals in head unit UI circuits. IC Role / Device Role / Timing Role: Schmitt-trigger buffer regenerating noisy or slow digital inputs before MCU GPIO sampling. Use Value: Eliminates false triggers caused by contact bounce or EMI, improving user interface reliability without firmware debouncing.	Use Scenario: Enabling/disabling enable lines for DC-DC converters or LDOs during cold-cranking or sleep/wake transitions. IC Role / Device Role / Timing Role: Level-translating and noise-immune gating of power controller EN pins from low-voltage MCU outputs. Use Value: Ensures clean, glitch-free power sequencing despite voltage droop or supply transients during vehicle start-stop cycles.
ADAS Sensor Interface	Body Control Module (BCM) I/O Expansion
Use Scenario: Interfacing analog sensor outputs (e.g., thermistors, potentiometers) with comparator-based detection circuits. IC Role / Device Role / Timing Role: Providing hysteresis-stabilized digital output from comparator stages driving microcontroller interrupt inputs. Use Value: Prevents chatter on threshold crossings due to sensor noise or thermal drift, ensuring accurate fault detection.	Use Scenario: Driving LED indicators or small relays from low-drive MCU GPIOs in door module or lighting controllers. IC Role / Device Role / Timing Role: High-current buffer amplifying weak MCU outputs to directly drive LEDs or optocouplers. Use Value: Reduces BOM count by eliminating discrete transistors or driver ICs while maintaining fast turn-on/turn-off response.

Infotainment Signal Conditioning

Automotive Power Sequencing

Use Scenario: Buffering and cleaning slow-rising button press or rotary encoder signals in head unit UI circuits.

IC Role / Device Role / Timing Role: Schmitt-trigger buffer regenerating noisy or slow digital inputs before MCU GPIO sampling.

Use Value: Eliminates false triggers caused by contact bounce or EMI, improving user interface reliability without firmware debouncing.

Use Scenario: Enabling/disabling enable lines for DC-DC converters or LDOs during cold-cranking or sleep/wake transitions.

IC Role / Device Role / Timing Role: Level-translating and noise-immune gating of power controller EN pins from low-voltage MCU outputs.

Use Value: Ensures clean, glitch-free power sequencing despite voltage droop or supply transients during vehicle start-stop cycles.

ADAS Sensor Interface

Body Control Module (BCM) I/O Expansion

Use Scenario: Interfacing analog sensor outputs (e.g., thermistors, potentiometers) with comparator-based detection circuits.

IC Role / Device Role / Timing Role: Providing hysteresis-stabilized digital output from comparator stages driving microcontroller interrupt inputs.

Use Value: Prevents chatter on threshold crossings due to sensor noise or thermal drift, ensuring accurate fault detection.

Use Scenario: Driving LED indicators or small relays from low-drive MCU GPIOs in door module or lighting controllers.

IC Role / Device Role / Timing Role: High-current buffer amplifying weak MCU outputs to directly drive LEDs or optocouplers.

Use Value: Reduces BOM count by eliminating discrete transistors or driver ICs while maintaining fast turn-on/turn-off response.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schmitt-trigger buffer applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC1G17DBVRQ1	Same silicon, SOT-23 (DBV) 5-pin package (2.9mm × 2.8mm); higher thermal resistance (R_θJA = 357.1°C/W vs. 371.0°C/W).	Larger footprint; better suited for manual assembly or lower-density layouts where SC-70 placement is constrained.	Select SN74LVC1G17DBVRQ1 if board real estate permits larger package or thermal margin exceeds SC-70 limits.
MC74VHC1G17DTT1G	Pin-compatible SC-70 variant; wider V_CC range (2.0–5.5V); higher max t_pd (11ns @ 3.3V); no AEC-Q100 qualification.	Not automotive-qualified; suitable for industrial or consumer applications requiring same footprint but lower cost.	Choose MC74VHC1G17DTT1G only for non-automotive designs where AEC-Q100 compliance is not required.

Compared with SN74LVC1G17DBVRQ1 and MC74VHC1G17DTT1G, SN74LVC1G17QDCKRQ1 uniquely combines AEC-Q100 Grade 1 qualification, 1.65V minimum V_CC, and 5.5V input tolerance in the smallest SC-70 footprint-making it the only option for space-limited, safety-critical automotive signal conditioning.

Availability

SN74LVC1G17QDCKRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS sensor interfaces, and body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74LVC1G17QDCKRQ1 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, embedded processing, and connectivity solutions with deep automotive design expertise and AEC-Q100-compliant manufacturing.

SN74LVC1G17QDCKRQ1 belongs to TI's LVC logic family-engineered for low-voltage, high-noise-immunity digital interfacing in automotive ECUs, infotainment systems, and power management units.

FAQ

What is the maximum input voltage rating for SN74LVC1G17QDCKRQ1?

The SN74LVC1G17QDCKRQ1 supports input voltages up to 5.5V regardless of V_CC level, enabling direct interfacing with 5V logic families or analog sensor outputs without external clamping. This 5.5V tolerance is specified across the full operating temperature range (–40°C to 125°C) and is validated per AEC-Q100 stress testing protocols.

Does SN74LVC1G17QDCKRQ1 support partial-power-down operation?

Yes, SN74LVC1G17QDCKRQ1 includes I_off circuitry that actively disables outputs when V_CC = 0V, preventing damaging current backflow during hot-swap or partial-power-down scenarios. This feature is explicitly qualified under AEC-Q100 and verified for use in automotive power sequencing applications.

What is the typical hysteresis voltage (ΔV_T) of SN74LVC1G17QDCKRQ1 at 3.3V V_CC?

At V_CC = 3.3V, SN74LVC1G17QDCKRQ1 exhibits a typical hysteresis (ΔV_T) of 0.99V, calculated as the difference between VT+ (2.04V) and VT− (1.05V). This value ensures reliable noise rejection on signals with amplitude variations up to nearly 1V, critical for mechanical switch debouncing and sensor threshold detection.

Can SN74LVC1G17QDCKRQ1 drive a 50pF load at 10MHz?

Yes, SN74LVC1G17QDCKRQ1 can reliably drive a 50pF load at 10MHz: its typical power dissipation capacitance (C_pd) is 22pF at 3.3V, and measured ICC remains below 100μA at this frequency and load. The device's ±24mA drive strength ensures fast edge rates even into moderate capacitive loads common in PCB interconnects.

Is SN74LVC1G17QDCKRQ1 pin-compatible with non-automotive variants like SN74LVC1G17DCKR?

Yes, SN74LVC1G17QDCKRQ1 shares identical pinout, electrical behavior, and SC-70 (DCK) package dimensions with SN74LVC1G17DCKR. However, SN74LVC1G17QDCKRQ1 undergoes additional AEC-Q100 stress screening-including extended temperature cycling and HTOL-and features automotive-specific marking (C7J/C7O) and traceability.

SN74LVC1G17QDCKRQ1 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVC

Package/Case:: 5-TSSOP, SC-70-5, SOT-353

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:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: SC-70-5

SN74LVC1G17QDCKRQ1 FAQ

1.How can I place an order for SN74LVC1G17QDCKRQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVC1G17QDCKRQ1 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 SN74LVC1G17QDCKRQ1 reliable?

The price and inventory of SN74LVC1G17QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC1G17QDCKRQ1 is usually 5 days.

3.What payment methods are accepted for SN74LVC1G17QDCKRQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC1G17QDCKRQ1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74LVC1G17QDCKRQ1?

SN74LVC1G17QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVC1G17QDCKRQ1 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 SN74LVC1G17QDCKRQ1?

For technical support, including SN74LVC1G17QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC1G17QDCKRQ1 requirements.

6.How does Aetrix verify that SN74LVC1G17QDCKRQ1 is sourced from the original manufacturer or authorized distributors?

All SN74LVC1G17QDCKRQ1 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 SN74LVC1G17QDCKRQ1 meets industry standards.

7.What is the process for return or replacement of SN74LVC1G17QDCKRQ1?

All SN74LVC1G17QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC1G17QDCKRQ1, 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 SN74LVC1G17QDCKRQ1 part is unused and in its original packaging.

Return procedure for SN74LVC1G17QDCKRQ1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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