Diodes Incorporated 74LVC2G17FX4-7

Overview

74LVC2G17FX4-7 from Diodes Incorporated is a dual Schmitt trigger buffer IC in X2-DFN1409-6 package (1.4 mm × 0.9 mm, 0.5 mm pad pitch), operating from 1.65 V to 5.5 V supply, with 5.5 V-tolerant inputs and ±24 mA output drive at 3.0 V. It supports partial power-down via IOFF, enabling safe signal isolation in mixed-voltage systems such as USB interface level-shifting and portable device power sequencing.

For engineers reviewing the 74LVC2G17FX4-7 datasheet, 74LVC2G17FX4-7 pinout, 74LVC2G17FX4-7 application, or 74LVC2G17FX4-7 equivalent, key selection criteria include Schmitt-trigger hysteresis (min 0.15 V at 1.8 V), propagation delay (max 4.3 ns at 5 V), IOFF leakage (<±10 μA), input voltage tolerance (up to 5.5 V), and thermal resistance (θJA = 450 °C/W in X2-DFN1409-6).

Technical Context

This device implements two independent non-inverting Schmitt trigger buffers with push-pull outputs and IOFF circuitry that disables outputs during power-down to prevent backflow current. Its dual-threshold input structure provides noise immunity with hysteresis ranging from 0.15 V (1.8 V supply) to 0.70 V (5.5 V supply), enabling reliable signal conditioning of slow or noisy digital waveforms.

The logic function is Y = A - each channel performs a direct positive Boolean transfer with no inversion. Input thresholds are supply-dependent: VT+ ranges from 0.70 V (1.8 V VCC) to 2.20 V (5.5 V VCC); VT− ranges from 0.25 V to 1.20 V, ensuring robust switching across the full 1.65–5.5 V operating range.

Key Specifications

Pinout & Package

X2-DFN1409-6 is a leadless, surface-mount chip-scale package measuring 1.4 mm × 0.9 mm × 0.4 mm with 0.5 mm pad pitch and NiPdAu terminal finish. Moisture sensitivity level is J-STD-020 Level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G17DBVR and 74LVC2G17FW4-7, the 74LVC2G17FX4-7 delivers optimal balance of ultra-small footprint (1.26 mm²), robust 24 mA drive at 3 V, and industry-leading thermal resistance (450 °C/W) for passive cooling in sealed enclosures.

Availability

74LVC2G17FX4-7 is available at Aetrix Electronics and suitable for USB interface design, portable display power sequencing, microcontroller GPIO conditioning, and industrial sensor signal isolation requiring stable component supply and long-term manufacturability.

Supply support for 74LVC2G17FX4-7 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

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal ICs for power management, signal integrity, and connectivity applications.

The 74LVC logic family targets low-voltage, high-speed digital interfacing with wide supply range and robust I/O tolerance - designed specifically for mixed-voltage system integration in consumer, computing, and industrial electronics.

FAQ

What is the minimum supply voltage for guaranteed operation of 74LVC2G17FX4-7?

The device is fully specified from 1.65 V to 5.5 V. At 1.65 V, it guarantees ±4 mA output drive, 10.5 ns max propagation delay, and Schmitt thresholds of VT+ = 0.70 V and VT− = 0.25 V. Operation below 1.65 V is not characterized and may result in undefined logic states or increased ICC.

Can 74LVC2G17FX4-7 be used to interface a 5 V sensor output to a 1.8 V microcontroller?

Yes - its inputs tolerate up to 5.5 V regardless of VCC, and its Schmitt trigger action ensures clean logic transitions even with slow-rising 5 V signals. When powered from 1.8 V, outputs swing rail-to-rail (0–1.8 V), matching the MCU's input thresholds while rejecting noise via 0.15 V hysteresis.

Does the IOFF feature require external control or configuration?

No - IOFF is fully automatic and requires no external enable signal. When VCC drops to 0 V (or near 0 V), internal circuitry disables both outputs and presents high-impedance I/O pins, preventing current backflow into powered-down sections of the system.

Is the X2-DFN1409-6 package compatible with standard reflow profiles?

Yes - it is rated J-STD-020 Level 1 (unlimited floor life at ≤30 °C/60% RH) and qualified for Pb-free reflow per IPC/JEDEC J-STD-020. Recommended peak temperature is 260 °C, with ramp rate ≤3 °C/s and time above 217 °C limited to 60–150 seconds.