Texas Instruments SN74LVC2G17DCKRG4

Overview

SN74LVC2G17DCKRG4 from Texas Instruments is a dual Schmitt-trigger buffer IC designed for 1.65 V to 5.5 V operation, featuring two independent noninverting buffers with hysteresis (VT+ = 2.0 V, VT– = 1.3 V at 3 V), 5.4 ns max propagation delay at 3.3 V, ±24 mA output drive, and Ioff support for live insertion and partial-power-down applications. It is used in audio docks, SSDs, and HDTVs to clean up slow or noisy digital signals.

For engineers reviewing the SN74LVC2G17DCKRG4 datasheet, SN74LVC2G17DCKRG4 pinout, SN74LVC2G17DCKRG4 application, or SN74LVC2G17DCKRG4 equivalent, key selection criteria include Schmitt-trigger input thresholds, 6-pin SC70 package compatibility, Ioff-enabled back-drive protection, 5.5 V-tolerant inputs, and 125°C operating temperature range.

Technical Context

The SN74LVC2G17DCKRG4 implements two independent noninverting Schmitt-trigger buffers performing Y = A logic, with separate positive-going (VT+) and negative-going (VT–) input thresholds enabling noise immunity on slow-rising or degraded waveforms. Its Ioff circuitry actively disables outputs when VCC = 0 V, blocking current backflow during hot-swap or power sequencing.

It supports voltage translation across 1.65–5.5 V rails - including 5 V-to-3.3 V and 3.3 V-to-1.8 V - while maintaining 5.5 V input tolerance regardless of VCC level. The device operates over –40°C to +125°C and meets JESD 78 Class II latch-up performance (>100 mA).

Key Specifications

Pinout & Package

SN74LVC2G17DCKRG4 uses the SC70-6 (DCK) package: 2.00 mm × 1.25 mm body, 0.65 mm pitch, 0.9 mm max height, JEDEC MO-203AA compliant. Pin 1 is marked by a dot; orientation follows standard SC70 top-view labeling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G17DCKRG4, SN74LVC2G17DBVR offers easier hand-soldering and slightly better thermal dissipation in ambient-air convection, while SN74LVC2G17DCKT provides identical performance in smaller reels - making both viable alternatives depending on assembly method and procurement scale.

Availability

SN74LVC2G17DCKRG4 is available at Aetrix Electronics and suitable for audio docks, solid-state drives, HDTVs, and industrial sensor interfaces requiring stable component supply, extended-temperature operation, and Ioff-enabled power sequencing.

Supply support for SN74LVC2G17DCKRG4 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 logic, power management, and signal chain solutions.

The SN74LVC2G17DCKRG4 belongs to TI's LVC low-voltage CMOS logic family, engineered for robust signal integrity, wide supply range compatibility, and seamless integration into mixed-voltage systems.

FAQ

What is the maximum operating temperature for SN74LVC2G17DCKRG4?

The SN74LVC2G17DCKRG4 is fully specified from –40°C to +125°C ambient temperature. This rating applies across all recommended VCC conditions (1.65 V to 5.5 V) and is validated per JEDEC JESD78 latch-up testing and thermal characterization data in the official datasheet SCES381N.

Does SN74LVC2G17DCKRG4 support voltage translation between different logic families?

Yes, SN74LVC2G17DCKRG4 supports bidirectional voltage translation: its 5.5 V-tolerant inputs allow connection to 5 V systems while powered from 1.8 V or 3.3 V rails, and its output levels track VCC - enabling clean interfacing between LVTTL, LVCMOS, and mixed-supply domains.

What is the purpose of the Ioff feature in SN74LVC2G17DCKRG4?

The Ioff feature in SN74LVC2G17DCKRG4 disables output drivers when VCC = 0 V, preventing current backflow from live inputs or outputs into the unpowered device. This protects downstream circuitry during hot-swap, partial power-down, or board-level maintenance - a critical requirement for modular systems.

Can SN74LVC2G17DCKRG4 replace a standard non-Schmitt buffer like SN74LVC2G07?

No - SN74LVC2G17DCKRG4 cannot directly replace SN74LVC2G07 because it includes Schmitt-trigger inputs (with VT+, VT–, and hysteresis), whereas SN74LVC2G07 has standard CMOS inputs. Substituting would alter noise immunity, threshold behavior, and edge sensitivity; functional equivalence requires verifying system-level signal integrity requirements.

What package type does SN74LVC2G17DCKRG4 use, and what are its dimensions?

SN74LVC2G17DCKRG4 uses the SC70-6 (DCK) package: 2.00 mm × 1.25 mm body size, 0.65 mm lead pitch, and 0.9 mm maximum height. It is RoHS-compliant, moisture-sensitive level 1, and marked "C75" on the top surface per TI's orderable addendum.