Texas Instruments SN74LVC2G17MDCKREP

Overview

SN74LVC2G17MDCKREP 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 (ΔVT up to 2.0 V), ±24-mA output drive at 3.3 V, and 5.4-ns max propagation delay. It enables robust signal conditioning in noisy industrial sensor interfaces and level-translating I/O expansion circuits.

For engineers reviewing the SN74LVC2G17MDCKREP datasheet, SN74LVC2G17MDCKREP pinout, SN74LVC2G17MDCKREP application, or SN74LVC2G17MDCKREP equivalent, key selection criteria include Ioff-enabled partial-power-down capability, 5.5-V tolerant inputs, rail-to-rail output swing, and SC-70 (DCK) 6-pin package compatibility with space-constrained PCB layouts.

Technical Context

This device implements two independent Schmitt-trigger buffers (Y = A), each with distinct positive-going (VT+) and negative-going (VT–) input thresholds-e.g., VT+ = 2.2 V and VT– = 0.9 V at VCC = 4.5 V-providing ≥0.6 V hysteresis to reject noise on slow or fluctuating signals. Its Ioff circuitry actively disables outputs during power-down, blocking reverse current flow when VCC = 0 V.

It supports mixed-voltage system interfacing: inputs tolerate up to 5.5 V regardless of VCC (1.65–5.5 V), enabling connection to 5-V logic while operating from 1.8-V or 3.3-V rails. The SC-70 package delivers low thermal impedance (θJA = 259°C/W) and qualifies for extended temperature operation from –55°C to +125°C.

Key Specifications

Pinout & Package

SN74LVC2G17MDCKREP uses the SC-70 (DCK) 6-pin surface-mount package (2.15 mm × 1.40 mm × 1.1 mm height), optimized for high-density routing and automated assembly. Pin 1 is marked by an index area and solder-bump composition indicator (• = Pb-free).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G17MDCKREP, SN74LVC2G17DBVR offers identical performance in a larger package with marginally better thermal dissipation, while MC74VHC1GT17DTT1G provides half the channel count and lacks critical Ioff and input-tolerance features needed for modern mixed-voltage designs.

Availability

SN74LVC2G17MDCKREP is available at Aetrix Electronics and suitable for industrial sensor interfaces, low-power I/O expanders, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for SN74LVC2G17MDCKREP 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 decades of expertise in high-reliability logic and interface solutions.

The SN74LVC2G17MDCKREP belongs to TI's enhanced-product (EP) logic family, engineered for extended temperature operation, controlled manufacturing baselines, and long-term supply stability in aerospace, defense, and industrial systems.

FAQ

What is the maximum input voltage rating for SN74LVC2G17MDCKREP?

The SN74LVC2G17MDCKREP supports input voltages up to 5.5 V on all pins-including 1A and 2A-regardless of VCC level (1.65–5.5 V). This allows direct interfacing with 5-V logic or sensors without external level-shifting components, simplifying design and improving signal integrity in mixed-voltage systems.

Does SN74LVC2G17MDCKREP support partial-power-down operation?

Yes, SN74LVC2G17MDCKREP integrates Ioff circuitry that disables outputs and limits leakage to ±10 µA when VCC = 0 V. This prevents damaging current backflow during hot-plug events or subsystem power sequencing-critical for reliable operation in modular industrial controllers and battery-backed systems.

What is the hysteresis voltage (ΔVT) of SN74LVC2G17MDCKREP at 3.3-V supply?

At VCC = 3.3 V, SN74LVC2G17MDCKREP exhibits VT+ = 2.2 V (typical) and VT– = 0.9 V (typical), yielding a hysteresis of 1.3 V. This wide threshold gap suppresses noise up to ±650 mV on slow-switching inputs such as mechanical switches or resistive sensor outputs, eliminating need for external debouncing circuits.

Can SN74LVC2G17MDCKREP drive standard LVC loads directly?

Yes, SN74LVC2G17MDCKREP delivers ±24 mA output drive at 3.3 V, sufficient to drive up to 10 standard 74LVC inputs (each ~2 µA) or a 30-pF capacitive load with ≤5.4 ns propagation delay. Its rail-to-rail VOH/VOL ensures full logic-level compatibility across LVC-family devices.

Is SN74LVC2G17MDCKREP qualified for extended temperature operation?

Yes, SN74LVC2G17MDCKREP is qualified for continuous operation from –55°C to +125°C per JEDEC standards, including HAST, temperature cycling, and electromigration testing. Its EP (Enhanced Product) pedigree ensures reliability in aerospace, downhole, and industrial control applications demanding long-term stability under thermal stress.