onsemi NC7WZ04FHX

Overview

NC7WZ04FHX from Fairchild Semiconductor is a dual CMOS inverter in the TinyLogic® UHS family, functioning as a high-speed signal-level logic inversion element in low-voltage digital interfaces. It delivers 2.3ns typical propagation delay into 50pF at 5V V_CC, ±24mA output drive at 3V, and operates across 1.65V–5.5V supply range - enabling use in mixed-voltage level-shifting and portable power-sensitive applications.

For engineers reviewing the NC7WZ04FHX datasheet, pinout, applications, or equivalent options, key selection criteria include its MicroPak2™ 1×1mm package, over-voltage tolerant inputs (up to 7V), power-down high-impedance I/O, and ultra-low ICC static current (≤10µA) for battery-backed systems.

Technical Context

The NC7WZ04FHX implements two independent CMOS inverter gates on a single die using advanced sub-micron CMOS process, supporting rail-to-rail input tolerance and guaranteed switching down to 1.65V. Its propagation delay scales predictably with V_CC and load capacitance - e.g., 2.2ns typical at 3.3V/50pF and 1.8ns at 5V/15pF.

Input thresholds are V_IL ≤ 0.3V_CC and V_IH ≥ 0.7V_CC across 2.3–5.5V, while outputs drive ±24mA at 3V with VOL ≤ 0.55V and VOH ≥ 2.62V under full load - confirming robust noise margin and interface compatibility with LVTTL, LVCMOS, and 3.3V/5V mixed-signal systems.

Key Specifications

Pinout & Package

NC7WZ04FHX uses the MicroPak2™ 6-lead package (1.0×1.0mm body, 0.35mm pitch), optimized for ultra-dense PCB layouts. Pin 1 is located at the bottom-left corner when top mark "A7" is read left-to-right.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC2G04DSFR and 74AUP2G04GW,125, the NC7WZ04FHX uniquely combines 7V input tolerance, 2.3ns speed at 5V, and MicroPak2™ footprint - making it optimal for compact, mixed-voltage, high-speed digital interface designs where layout density and translation simplicity are critical.

Availability

NC7WZ04FHX is available at Aetrix Electronics and suitable for USB signal conditioning, portable display backlight control, and industrial sensor interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for NC7WZ04FHX 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

Fairchild Semiconductor was a leading designer of high-performance analog and power ICs, acquired by ON Semiconductor in 2016; its legacy logic portfolio remains widely deployed in industrial and consumer electronics.

The NC7WZ04FHX belongs to the TinyLogic® Ultra-High Speed (UHS) series, engineered specifically for space-constrained, low-voltage digital systems needing fast, robust, and voltage-flexible logic inversion without external support components.

FAQ

What is the maximum input voltage rating for NC7WZ04FHX?

The NC7WZ04FHX supports DC input voltages up to 7.0V independent of V_CC, enabling safe interfacing between higher-voltage peripherals (e.g., 5V sensors) and lower-voltage logic domains (e.g., 1.8V or 3.3V MCUs) without external clamping diodes. This specification is confirmed in the Absolute Maximum Ratings table of the official datasheet Rev. 1.0.2.

Does NC7WZ04FHX support power-down mode with high-impedance I/O?

Yes, the NC7WZ04FHX features power-down high-impedance inputs and outputs - when V_CC = 0V, all I/O terminals enter a high-Z state, preventing back-driving or contention on shared buses during hot-swap or partial system power-down. This behavior is explicitly documented in the Features section and verified in the Functional Description.

What is the typical propagation delay of NC7WZ04FHX at 3.3V supply?

At V_CC = 3.3V with 50pF load and 500Ω termination, the NC7WZ04FHX exhibits a typical propagation delay (t_PLH/t_PHL) of 2.2ns, as specified in the AC Electrical Characteristics table (Rev. 1.0.2, page 5). This value reflects real-world performance under standard test conditions and supports reliable operation in sub-200MHz digital paths.

Is NC7WZ04FHX pin-compatible with other TinyLogic® dual inverters in MicroPak2™ packages?

No - the NC7WZ04FHX has a fixed pinout (A1, GND, A2, Y1, V_CC, Y2) that differs from other dual inverters like NC7WZ14FHX (Schmitt-trigger) or NC7WZ17FHX (buffer), which share the same MicroPak2™ footprint but assign different functions to pins 1, 3, 4, and 6. Always verify pin mapping against the specific device's Connection Diagrams before layout reuse.

What is the thermal resistance θ_JA for NC7WZ04FHX in its MicroPak2™ package?

The junction-to-ambient thermal resistance (θ_JA) for NC7WZ04FHX in the MicroPak2™ package is 560°C/W, as specified in the Recommended Operating Conditions table (Rev. 1.0.2, page 3). This value assumes standard JEDEC 2-layer board conditions and informs thermal design margins for continuous operation at elevated ambient temperatures.