Nuvoton Introduces NSP2340BA24E Smart Buzzer
Nuvoton Technology has introduced the NSP2340BA24E Smart Buzzer, an innovative integrated circuit designed to transform traditional piezoelectric buzzers. Launched on October 13, 2026, this product integrates voice functionality and a buzzer driver into a single IC, moving beyond the simple beeping sounds typically associated with buzzers. This advancement allows devices to play voice messages and diverse sound effects, offering a more intuitive and recognizable audio interaction experience.
Traditional buzzers, due to their straightforward architecture, have been widely adopted for operational prompts and warning functions in various electronic products. However, as smart devices become increasingly sophisticated and feature-rich, relying solely on different frequencies or rhythms of beeps to convey information is no longer sufficient for intuitive human-machine interaction. The NSP2340BA24E addresses this limitation by embracing a core concept of "beyond beeps," significantly enhancing the auditory capabilities of conventional buzzers.
By enabling products to clearly express operational status, reminders, or warning information through voice and varied sound content, the NSP2340BA24E provides a more direct communication method. For instance, instead of using a sequence of beeps to indicate different statuses, this Smart Buzzer can deliver distinct voice prompts or sound effects, allowing users to understand device messages more intuitively. This design empowers product developers to elevate the sound experience and differentiation of their end products while retaining the established application concept of piezoelectric buzzers.
Source Link: Press Release
Specifications
| Product | Function | Integrated Features | Max Boost Voltage | Control Interfaces |
|---|---|---|---|---|
| NSP2340BA24E Smart Buzzer | Voice Playback & Piezoelectric Buzzer Driver | Embedded Flash Memory, Boost Converter, Class AB Amplifier | 24V | UART, I²C, Two-wire I/O |
Key Features
- Integrates voice function and buzzer driver into a single IC solution.
- Enables traditional piezoelectric buzzers to play voice and diverse sound effects.
- Includes embedded flash memory for storing sound content.
- Features a built-in boost converter, capable of reaching up to 24V.
- Incorporates a Class AB power amplifier for audio output.
- Directly drives piezoelectric buzzers, simplifying design.
- Supports multiple MCU control interfaces, including UART, I²C, and two-wire I/O.
- Provides online upgrade functionality, allowing the main microcontroller to update sound content.
- Offers more intuitive and recognizable sound interaction compared to simple beeps.
- Simplifies the integration of smart sound functions into existing product designs.
Applications
- Smart home appliances (for operation and completion reminders).
- Security systems (for warning notifications).
- Medical equipment.
- Industrial equipment (for status indications).
- Other smart devices requiring enhanced audio feedback.
Availability
Nuvoton Technology’s NSP2340BA24E Smart Buzzer voice IC is featured in the company’s NSP audio and speech controller portfolio. Designed for piezoelectric buzzer applications, the device integrates voice storage and a buzzer driver, with a built-in voltage booster supporting output levels of up to 24 V for voice and sound-effects playback. The NSP2340BA24E supports communication with a host microcontroller through I²C, UART, and a two-wire interface, and offers in-system programming (ISP) for updating voice content.
