Nexperia USA Inc. 74LVC14ADB,112

Overview

74LVC14ADB,112 from Nexperia is a hex inverting Schmitt trigger IC with 5 V tolerant inputs, operating from 1.2 V to 3.6 V supply, delivering hysteresis-based noise immunity (VH = 0.3–1.2 V), propagation delay as low as 1.0 ns at 3.3 V, and ±24 mA output drive-used for waveform shaping and oscillator circuits in mixed-voltage industrial control and sensor interface systems.

For engineers reviewing the 74LVC14ADB,112 datasheet, 74LVC14ADB,112 pinout, 74LVC14ADB,112 application, or 74LVC14ADB,112 equivalent, this device supports level translation between 3.3 V logic and legacy 5 V peripherals, enables robust timing generation via relaxation oscillators, and requires attention to input hysteresis thresholds (VT+ = 0.4–2.0 V, VT− = 0.12–1.5 V) and thermal derating in high-ambient environments.

Technical Context

The 74LVC14ADB,112 implements six independent CMOS Schmitt-trigger inverters with asymmetric input thresholds and rail-to-rail output swing. Its overvoltage-tolerant inputs accept up to 5.5 V regardless of VCC (1.2–3.6 V), enabling direct interfacing with TTL and 5 V CMOS without external level shifters.

Each inverter exhibits hysteresis (VH = VT+ − VT−) ranging from 0.3 V to 1.2 V depending on supply voltage, ensuring reliable signal conditioning in noisy environments. Propagation delays are tightly controlled (tpd = 1.0–8.0 ns across VCC and temperature), with output skew limited to ≤1.5 ns between any two buffers under identical switching conditions.

Key Specifications

Pinout & Package

74LVC14ADB,112 uses the SSOP14 (SOT337-1) package: plastic shrink small outline, 14 leads, body width 5.3 mm, pitch 0.65 mm. Pin 1 index located at top-left corner with beveled edge.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC14APWR and 74LVC14AD,118, the 74LVC14ADB,112 offers the smallest PCB footprint among LVC14A variants (5.3 × 6.2 mm), making it optimal for space-constrained portable electronics-though its SSOP thermal resistance limits sustained 24 mA output loading above 85 °C.

Availability

74LVC14ADB,112 is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable instrumentation, and mixed-voltage communication gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC14ADB,112 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 high-volume, high-reliability logic, discrete, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVC14A product line delivers robust, low-power Schmitt-trigger logic optimized for noise-prone environments and voltage-level bridging in resource-constrained embedded systems.

FAQ

What is the maximum input voltage the 74LVC14ADB,112 can tolerate?

The 74LVC14ADB,112 supports input voltages up to 5.5 V regardless of VCC level (1.2–3.6 V), verified per Absolute Maximum Ratings Table 4. This overvoltage tolerance eliminates the need for external clamping diodes when interfacing with 5 V peripherals, provided input current remains within ±50 mA limits.

Can the 74LVC14ADB,112 operate reliably at 1.2 V supply?

Yes-the device is fully specified down to 1.2 V VCC, with propagation delay ≤16 ns and guaranteed hysteresis (VH ≥ 0.1 V) across −40 °C to +125 °C. Static current remains below 10 μA at 1.2 V, making it suitable for ultra-low-power wake-up circuits and energy-harvesting applications.

How does the Schmitt-trigger hysteresis vary with supply voltage?

Hysteresis voltage (VH = VT+ − VT−) scales with VCC: it ranges from 0.1–1.0 V at 1.2 V, 0.3–1.2 V at 3.6 V, per Table 9. This ensures consistent noise margin across the entire operating range-critical for stable operation in fluctuating supply conditions such as battery discharge profiles.

Is the 74LVC14ADB,112 pin-compatible with older 74HC14 variants?

No-while functional behavior is similar, 74LVC14ADB,112 uses different input thresholds (VT+ = 0.4–2.0 V vs. HC's ~3.5 V at 5 V), lacks 5 V supply capability, and has lower drive strength. Direct replacement requires validation of signal levels, timing margins, and load compatibility; it is not a drop-in substitute for 74HC14 in 5 V systems.