Nexperia USA Inc. 74LV14DB,118

Overview

74LV14DB,118 from Nexperia is a low-voltage CMOS hex inverting Schmitt trigger IC with six independent channels, operating from 1.0 V to 5.5 V supply, delivering sharp output transitions for noisy input signals, and specified for -40 °C to +125 °C industrial temperature range. It features input hysteresis (VH up to 1.5 V at VCC = 5.5 V), 13 ns typical propagation delay at 3.3 V/15 pF, and TTL-level compatibility at 2.7–3.6 V.

For engineers reviewing the 74LV14DB,118 datasheet, 74LV14DB,118 pinout, 74LV14DB,118 application, or 74LV14DB,118 equivalent, this device is selected for noise-immune signal conditioning, waveform shaping in sensor interfaces, clock clean-up in mixed-signal systems, and oscillator design where input slew rate tolerance and deterministic switching thresholds are critical.

Technical Context

The 74LV14DB,118 implements six independent Schmitt-trigger inverters using Si-gate CMOS technology, each with asymmetric positive-going (VT+) and negative-going (VT−) input thresholds to generate hysteresis-e.g., VT+ = 2.8 V and VT− = 1.2 V at VCC = 3.0 V. This architecture rejects slow-rising/falling noise without external components.

It supports dual-domain operation: logic-level compatibility with both CMOS (1.0–5.5 V) and TTL (2.7–3.6 V) inputs, and delivers rail-to-rail output swing with VOH ≥ 2.82 V and VOL ≤ 0.40 V at IO = −6 mA / +6 mA and VCC = 3.0 V, enabling direct interfacing with downstream 3.3 V logic.

Key Specifications

Pinout & Package

74LV14DB,118 is supplied in SSOP14 (SOT337-1) package: plastic shrink small outline, 14 leads, body width 5.3 mm, pitch 0.65 mm. Pin 1 is index-marked; pin 7 = GND; pin 14 = VCC.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar hex inverting Schmitt trigger applications.

Compared with 74HC14DB,118, the 74LV14DB,118 enables true low-voltage operation down to 1.0 V and offers superior noise rejection via wider hysteresis; versus SN74LV14APWR, it provides better thermal performance in sustained +105 °C ambient environments due to SSOP package construction.

Availability

74LV14DB,118 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and medical diagnostic equipment requiring stable component supply across extended temperature and long product lifecycles.

Supply support for 74LV14DB,118 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

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LV14 belongs to Nexperia's LV logic family, engineered specifically for low-voltage, low-power, noise-immune digital interfacing in resource-constrained embedded systems - emphasizing robustness, wide supply flexibility, and drop-in replaceability for legacy 74-series designs.

FAQ

Can 74LV14DB,118 operate reliably at 1.2 V supply?

Yes. The device is fully specified from 1.0 V to 5.5 V. At VCC = 1.2 V, it delivers functional Schmitt-trigger behavior with VT+ ≈ 0.7 V and VT− ≈ 0.3 V, and propagation delay ≤80 ns. Static current remains below 1 μA, making it ideal for energy-harvesting sensor nodes.

What is the maximum capacitive load this IC can drive without signal degradation?

The 74LV14DB,118 is characterized up to 15 pF (typical tpd = 13 ns at 3.3 V). Driving >30 pF increases propagation delay nonlinearly and may cause output undershoot/overshoot exceeding ±0.8 V. For >50 pF loads, add a series resistor (22–47 Ω) near the output to dampen ringing.

Does this part support mixed-voltage interfacing - e.g., 1.8 V input driving a 3.3 V output?

No. The 74LV14DB,118 is a single-supply device: inputs and outputs are referenced to the same VCC. To interface 1.8 V logic to a 3.3 V domain, use a dual-supply level translator (e.g., TXB0106) upstream - the LV14 itself does not translate voltage levels.

How does the SSOP14 (SOT337-1) package compare thermally to SO14 and TSSOP14 variants?

The SSOP14 package (SOT337-1) used in 74LV14DB,118 has a thermal resistance (RθJA) of ~135 K/W, lower than TSSOP14 (~160 K/W) and comparable to SO14 (~140 K/W). Its 5.3 mm width allows larger copper pour under the exposed pad area, improving heat dissipation in thermally dense industrial PCB layouts.