onsemi NL27WZ04DTT1

Overview

NL27WZ04DTT1 from onsemi is a dual CMOS inverter IC operating from 1.65 V to 5.5 V, delivering 2.0 ns typical propagation delay at 5 V, ±32 mA output drive capability, and overvoltage-tolerant inputs/outputs up to 5.5 V. It serves as a high-speed logic-level shifter and signal conditioning element in low-power portable instrumentation and battery-powered microcontroller I/O expansion circuits.

For engineers reviewing the NL27WZ04DTT1 datasheet, pinout, applications, or equivalent options, key selection considerations include supply voltage flexibility (1.65–5.5 V), IOFF partial power-down support, thermal resistance (154 °C/W in UDFN6), and AEC-Q100 qualification for automotive-grade reliability validation.

Technical Context

The NL27WZ04DTT1 implements two independent CMOS inverter stages in a single die, each with rail-to-rail input thresholds defined by VCC-dependent VIH/VIL (e.g., 0.70 × VCC min for VIH at VCC ≥ 2.3 V). Its IOFF feature enables bidirectional signal isolation during system power sequencing, preventing backfeed when VCC = 0 V.

Propagation delay varies with supply voltage and load: 2.8 ns typ (tPLH/tPHL) at VCC = 4.5–5.5 V with RL = 1 MΩ and CL = 15 pF; 3.6 ns typ under heavier 500 Ω/50 pF loading. Input capacitance is 2.5 pF and output capacitance is 4.0 pF at 5.5 V, supporting high-frequency digital interface integrity.

Key Specifications

Pinout & Package

NL27WZ04DTT1 is packaged in UDFN6 (1.0 mm × 1.0 mm, 0.35 mm pitch), a space-constrained, thermally efficient leadless package with exposed pad for enhanced heat dissipation (θJA = 154 °C/W).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G04DBVR and 74AUP2G04GW,125, the NL27WZ04DTT1 uniquely combines AEC-Q100 Grade 1 qualification, IOFF-enabled partial power-down, and full 1.65–5.5 V operation - making it the only option qualified for automotive body electronics with mixed-voltage domain isolation requirements.

Availability

NL27WZ04DTT1 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O expansion, portable medical sensor hubs, battery-powered IoT edge nodes, and high-reliability embedded timing applications requiring stable component supply across long production lifecycles.

Supply support for NL27WZ04DTT1 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, sensors, and logic ICs for automotive, industrial, cloud, and medical markets.

The NL27WZ04DTT1 belongs to onsemi's WZ logic family-designed for ultra-high-speed, low-voltage operation in space-constrained, thermally demanding applications where signal integrity and power-state robustness are critical.

FAQ

What is the maximum operating frequency supported by the NL27WZ04DTT1?

The NL27WZ04DTT1 does not specify a maximum clock frequency in its datasheet, as it is a combinational logic device-not a clocked circuit. Its usable toggle rate depends on propagation delay and load conditions: with tPLH/tPHL = 2.8 ns typ (VCC = 5 V, CL = 15 pF), the theoretical maximum clean toggle frequency is ~357 MHz. Real-world performance is limited by PCB trace capacitance, fanout, and signal integrity margins. The NL27WZ04DTT1 is intended for general-purpose inversion-not high-speed clock distribution.

Does the NL27WZ04DTT1 support true bidirectional signal isolation during power-down?

Yes-the NL27WZ04DTT1 implements IOFF functionality that actively disables both input and output circuitry when VCC = 0 V, preventing current flow between any A or Y terminal regardless of applied voltage (up to 5.5 V). This meets JEDEC JESD78 Class II latch-up immunity and ensures no backfeed occurs into unpowered subsystems. The NL27WZ04DTT1 is explicitly characterized for this behavior in its DC Electrical Characteristics table under IOFF parameter.

Can the NL27WZ04DTT1 be used with a 1.8 V supply while driving 5 V-tolerant inputs?

Yes-the NL27WZ04DTT1 operates down to 1.65 V and features overvoltage-tolerant inputs/outputs rated to 5.5 V. When powered at 1.8 V, its VOH is ≥1.52 V (min at IOH = −4 mA) and VOL ≤ 0.24 V (max at IOL = 4 mA), meeting 1.8 V logic thresholds. Its outputs remain safe when connected to 5 V inputs due to internal clamping, and its inputs accept 5 V signals without damage-even at VCC = 1.8 V. This makes the NL27WZ04DTT1 ideal for mixed-voltage level shifting.

Is the NL27WZ04DTT1 pin-compatible with other dual inverters in UDFN6 packages?

No-the NL27WZ04DTT1 uses a non-standard UDFN6 pinout (A2, A1, GND, VCC, Y2, Y1) that differs from industry-common arrangements like SN74LVC2G04 (A1, Y1, GND, VCC, A2, Y2). While both are 1.0 × 1.0 mm UDFN6 packages, the pin assignment is unique to onsemi's WZ family. PCB layout must follow the NL27WZ04DTT1-specific pin mapping shown in Figure 2 of its datasheet; direct replacement requires board revision.

What thermal performance can be expected from the NL27WZ04DTT1 in a typical 2-layer FR4 PCB layout?

In a standard 2-layer FR4 PCB with minimum copper pad spacing (per JESD51-7), the NL27WZ04DTT1 in UDFN6 (1.0 × 1.0 mm) achieves θJA = 154 °C/W. At 5.5 V and full 32 mA output sink, worst-case power dissipation is ~176 mW, resulting in ~27 °C junction-to-ambient rise above ambient. Adding thermal vias under the exposed pad reduces θJA by 20–40%, improving reliability in sealed enclosures. The NL27WZ04DTT1's thermal specs are validated per JEDEC test conditions and published in its Maximum Ratings table.