Texas Instruments SN74LVC1G17DBVRE4

Overview

SN74LVC1G17DBVRE4 from Texas Instruments is a single-channel Schmitt-trigger buffer IC designed for signal conditioning in noise-prone digital interfaces. It operates from 1.65V to 5.5V V_CC, delivers ±24mA output drive at 3.3V, achieves 4.6ns max propagation delay, and features 5.5V-tolerant inputs-enabling level translation in mixed-voltage systems such as USB peripheral power management and audio codec interface buffering.

For engineers reviewing the SN74LVC1G17DBVRE4 datasheet, SN74LVC1G17DBVRE4 pinout, SN74LVC1G17DBVRE4 application, or SN74LVC1G17DBVRE4 equivalent, key selection criteria include its Schmitt-trigger hysteresis (0.36–1.04V), I_off support for live insertion, ultra-low 10μA max I_CC, and SOT-23-5 (DBV) package compatibility with high-density PCB layouts.

Technical Context

The SN74LVC1G17DBVRE4 implements a non-inverting Schmitt-trigger buffer (Y = A) with asymmetric input thresholds: VT+ ranges from 0.76V (1.65V V_CC) to 3.33V (5.5V V_CC), and VT− from 0.35V to 2.4V, yielding hysteresis (ΔVT) of 0.36–1.04V. This architecture rejects slow-rising or noisy signals common in mechanical switch debouncing and analog sensor interfacing.

Its I_off circuitry disables outputs when V_CC = 0V, preventing back-drive current and enabling partial-power-down operation in hot-swap applications. The device maintains full functionality across –40°C to 125°C and supports 5V V_CC operation while accepting 5.5V inputs-critical for interfacing legacy 5V logic with modern low-voltage microcontrollers.

Key Specifications

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 lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC1G17DCKRE4, the SN74LVC1G17DBVRE4 offers easier assembly and thermal margin in standard SMT lines; versus MC74VHC1G17DTT1G, it provides broader voltage flexibility and essential I_off for modern power-managed systems-making SN74LVC1G17DBVRE4 the preferred choice for portable, hot-pluggable, and multi-rail embedded designs.

Availability

SN74LVC1G17DBVRE4 is available at Aetrix Electronics and suitable for audio dock interfaces, SSD power sequencing, and Blu-ray player front-panel control requiring stable component supply across industrial temperature grades and long production lifecycles.

Supply support for SN74LVC1G17DBVRE4 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 connectivity technologies, with over 90 years of innovation in high-reliability silicon design and manufacturing.

The SN74LVC1G17DBVRE4 belongs to TI's LVC logic family, engineered for low-voltage, high-speed, mixed-signal interface applications in consumer, computing, and industrial electronics where noise immunity, level translation, and power efficiency are critical.

FAQ

What is the function of the NC pin on SN74LVC1G17DBVRE4?

The NC (No Connection) pin on SN74LVC1G17DBVRE4 is physically present but has no internal connection to die circuitry. Per Texas Instruments' datasheet SCES351Y, this pin must remain unconnected-neither tied to GND nor V_CC. Routing traces to or placing solder on the NC pad may cause mechanical stress or unintended coupling, potentially degrading noise immunity or thermal performance in the SOT-23-5 package.

Does SN74LVC1G17DBVRE4 support 1.8V operation?

Yes, SN74LVC1G17DBVRE4 fully supports 1.8V operation within its specified 1.65V to 5.5V V_CC range. At 1.8V, it delivers guaranteed 2.8ns min / 9.9ns max propagation delay (CL = 15pF), maintains 0.76V VT+ and 0.35V VT− thresholds, and draws ≤10μA I_CC. This makes SN74LVC1G17DBVRE4 suitable for 1.8V FPGA I/O banks, low-power microcontrollers, and memory interface conditioning where rail-to-rail swing and noise rejection are required.

Can SN74LVC1G17DBVRE4 drive a 50pF load at 10MHz?

Yes, SN74LVC1G17DBVRE4 can reliably drive a 50pF load at 10MHz. Its ±24mA output drive at 3.3V ensures fast edge rates, and measured t_pd remains ≤6.5ns (–40°C to 85°C, CL = 50pF). Power dissipation stays below 1mW under these conditions (C_pd = 22pF typical), and the device's hysteresis prevents oscillation on slow edges-making SN74LVC1G17DBVRE4 appropriate for driving moderate-capacitance bus lines or ADC input filters in audio and video subsystems.

Is SN74LVC1G17DBVRE4 pin-compatible with other SN74LVC1Gxx variants?

No, SN74LVC1G17DBVRE4 is not pin-compatible with other SN74LVC1Gxx devices such as SN74LVC1G00 (NAND) or SN74LVC1G08 (AND), despite sharing the same SOT-23-5 (DBV) package. Pin 1 is input (A) and pin 3 is output (Y) for SN74LVC1G17DBVRE4, whereas logic gates assign different functions to those pins. Always verify pin mapping against the specific device's functional diagram-substituting SN74LVC1G17DBVRE4 for another 1Gxx variant without redesign will result in incorrect logic behavior.

What is the maximum junction temperature for SN74LVC1G17DBVRE4 in continuous operation?

The maximum junction temperature (T_J) for SN74LVC1G17DBVRE4 is 150°C, derived from its absolute maximum storage temperature rating and thermal metrics. With R_θJA = 357.1°C/W (DBV package), dissipating 10mW yields ΔT = 3.57°C above ambient-well within limits. For sustained 125°C ambient operation, the device safely handles up to ~70mW total power (including dynamic and static components), confirming robust thermal performance in sealed enclosures or stacked PCB assemblies where SN74LVC1G17DBVRE4 is deployed.