onsemi NL27WZ14DTT1G

Overview

NL27WZ14DTT1G from onsemi is a dual Schmitt-trigger inverter IC operating from 1.65 V to 5.5 V, delivering 3.2 ns propagation delay at 5 V, ±32 mA output drive capability, and overvoltage-tolerant inputs/outputs up to 5.5 V. It serves as a noise-immune signal conditioning and level-shifting element in low-voltage digital interface circuits.

For engineers reviewing the NL27WZ14DTT1G datasheet, pinout, applications, or equivalent options, key selection criteria include supply voltage range compatibility (1.65–5.5 V), Schmitt-trigger hysteresis for noisy environments, IOFF partial power-down support, UDFN6-6 package footprint constraints, and AEC-Q100 qualification status for automotive use cases.

Technical Context

The NL27WZ14DTT1G integrates two independent Schmitt-trigger inverters with hysteresis thresholds (VT+ = 1.0–3.6 V, VT− = 0.2–1.9 V depending on VCC) enabling robust noise rejection in slow-rising or EMI-prone signals. Its IOFF circuitry disables I/O paths during power-down, preventing back-driving in partial-power systems.

It supports rail-to-rail input operation up to 5.5 V regardless of VCC, and delivers 32 mA sink current at 4.5 V while maintaining <5.5 ns typical propagation delay across 1.65–5.5 V supply range. The device uses sub-100-FET logic design optimized for ultra-low static current and fast switching.

Key Specifications

Pinout & Package

Package: UDFN6 (1.0 mm × 1.0 mm, 0.35 mm pitch), 6-pin, bottom-exposed thermal pad, RoHS-compliant, Pb-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G14DBVR and MC74VHC14DT, the NL27WZ14DTT1G uniquely combines UDFN6 miniaturization, IOFF-enabled system-level power management, and AEC-Q100 qualification - making it optimal for next-generation automotive and portable electronics requiring space, safety, and robustness.

Availability

NL27WZ14DTT1G is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor nodes, and portable medical devices requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.

Supply support for NL27WZ14DTT1G 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The NL27WZ14DTT1G belongs to onsemi's TinyLogic® WZ ultra-high-speed CMOS logic family, designed specifically for low-voltage, low-power, noise-immune signal conditioning in space-constrained and mission-critical applications.

FAQ

What is the maximum input voltage the NL27WZ14DTT1G can tolerate when VCC = 1.8 V?

The NL27WZ14DTT1G supports input voltages up to 5.5 V regardless of VCC level, including at 1.8 V operation. This overvoltage tolerance eliminates the need for external clamping diodes when interfacing with higher-voltage peripherals, and is confirmed in the Absolute Maximum Ratings table (VIN = −0.5 V to +6.5 V) and Recommended Operating Conditions (VIN = 0 to 5.5 V).

Does the NL27WZ14DTT1G support partial power-down mode, and how does it behave when VCC = 0 V?

Yes, the NL27WZ14DTT1G features IOFF circuitry that places inputs and outputs in high-impedance state when VCC = 0 V. In this mode, leakage current is limited to ≤10 µA (per IOFF specification), preventing back-current flow between powered and unpowered domains - critical for hot-plug systems and multi-rail power sequencing.

What is the hysteresis voltage (VH) of the NL27WZ14DTT1G at VCC = 3.3 V, and why does it matter?

At VCC = 3.3 V, the NL27WZ14DTT1G exhibits VH = 0.4–1.2 V (min–max), with typical hysteresis of 0.93 V. This voltage window ensures reliable switching in presence of noise or slow signal edges - for example, rejecting >500 mV of ground bounce in motor-control feedback lines or eliminating chatter from mechanical switch contacts.

Is the NL27WZ14DTT1G pin-compatible with other TinyLogic® dual inverters like NL27WZ04DTT1G?

No, the NL27WZ14DTT1G is not pin-compatible with NL27WZ04DTT1G. While both use UDFN6 packages, their pinouts differ: NL27WZ14DTT1G assigns pins 1/Y1, 2/A2, 3/A1, 4/Y2, 5/GND, 6/VCC; NL27WZ04DTT1G uses 1/A1, 2/Y1, 3/GND, 4/Y2, 5/A2, 6/VCC. Layout reuse requires verification against each device's specific pin assignment diagram.

What thermal performance can be expected from the NL27WZ14DTT1G in its UDFN6-6 (1.0×1.0 mm) package?

In the UDFN6-6 (CASE 517BX) package, the NL27WZ14DTT1G has θJA = 154 °C/W (per datasheet page 2). With typical power dissipation <1 mW at 1 MHz, junction temperature rise remains negligible (<0.15 °C) under standard FR4 PCB conditions - enabling reliable operation in thermally constrained modules without heatsinking.