Title: onsemi NC7SZ125P5X-F22057 TinyLogic Buffer: Datasheet, Pinout, and Application Circuit
The onsemi NC7SZ125P5X-F22057 is a pivotal component within the TinyLogic® UHS family, representing a single non-inverting buffer gate with a 3-state output. Engineered for high-speed, low-power operations, this buffer is instrumental in managing signal integrity across a myriad of digital applications. Its ultra-miniaturized SC-70-5 package makes it particularly suited for space-constrained designs like portable electronics, IoT modules, and advanced communication systems.
Datasheet Overview
Key parameters outlined in the datasheet highlight the device’s performance strengths. It operates across a voltage range of 1.65V to 5.5V, supporting interfacing between devices with mixed voltage levels. With a typical propagation delay of just 3.7 ns at 5V, it ensures high-speed signal transmission while consuming minimal power—ideal for battery-powered applications. The 3-state output includes a high-impedance state, allowing multiple outputs to be connected to a shared bus without conflict. The device also features robust ESD protection, exceeding 2 kV per human body model (HBM), improving system reliability.
Pinout Configuration
The NC7SZ125P5X is housed in a 5-pin SC-70 package:
- Pin 1 (OE): Output Enable (Active LOW)
- Pin 2 (A): Input

- Pin 3 (Y): Output
- Pin 4 (GND): Ground
- Pin 5 (VCC): Supply Voltage
This compact pinout allows efficient PCB layout and simplifies integration in high-density circuits.
Application Circuit
A common use case for the NC7SZ125 is in bus interfacing and signal isolation. For example, in a microcontroller-based system, it can be used to control data flow between the MCU and a peripheral device via a shared data bus. When OE is pulled LOW, the buffer transmits the input signal (A) to the output (Y). When OE is HIGH, the output enters a high-impedance state, effectively disconnecting from the bus. This functionality prevents data collisions in multi-device communication systems, such as I2C or SPI buses.
ICGOODFIND Summary
The onsemi NC7SZ125P5X-F22057 is an ultra-high-speed, low-power buffer that offers excellent signal management capabilities for modern digital designs. Its small form factor, wide voltage compatibility, and 3-state output make it highly versatile for applications requiring efficient bus interfacing and minimal power consumption.
Keywords:
TinyLogic Buffer, 3-State Output, High-Speed Signal Integrity, Low-Power Design, Bus Interface
