Flash Voice Chip
Change the Voice. Programmable Sound Chip.
Reprogrammable voice ICs designed for products that need flexible audio content, scalable storage and reliable playback.
One Chip. Multiple Voices. Unlimited Updates.
OTP VS Flash Chip
The Advantage of Reprogrammable Voice
Flexible Voice Content Without Redesigning Your Hardware.
Program once. Voice stays fixed:
- Program Once
- Fixed Content
- Limited Updates
- Best for Stable Content
WTN6 Series OTP Chip
Representative models
VS
Update. Replace. Improve. Repeat:
- Reprogrammable
- Changeable Content
- Flexible Updates
- Built for Evolving Products
WT588F Series Flash ICs
Representative models
Built for Change
Engineered for Real Products.
Flexible Voice Technology for Products That Keep Evolving.
Reprogrammable Audio
Update voice content when products, languages or requirements change.
Scalable Storage
Flexible memory configurations for short prompts and longer audio content.
Flexible Control
Support different control methods for integration into a wide range of electronic products.
Low-Power Operation
Designed for applications where power consumption matters.
From Audio File to Product Voice.
Create
Prepare your audio content.
>>
01
Program
Download voice data to the Flash memory.
02
>>
Integrate
Connect the IC to your product system.
03
>>
Update
Change voice content whenever needed.
04
>>
Play
Deliver reliable audio to the end user.
05
Different Voice Requirements
Explore by Your Requirements
Find the Right Voice Solution for the Way You Design.
Compact Voice Playback
For simple products with compact designs and shorter audio requirements.
WT588F02-8S
Recommended Products
Extended Voice Storage
For applications that require longer audio content or more voice segments.
WT2003H4-16S
Recommended Products
Flexible control and functional expansion
For products requiring MCU communication or more advanced control logic.
WT588F02KD-24SS
Recommended Products
Advanced Audio Solutions
For products that require higher integration or additional audio functionality.
WT2605C-32N
Recommended Products
Featured Flash Voice Chips
The Right Chip for Every Voice.
Choose the right solution based on performance, storage, package and application requirements.
WT588F02-8S-C
16‑Bit DSP Voice IC with Flash Memory & Online Update
- Built‑in 220KB Flash – up to 320 seconds voice storage
- Supports WAV (≤16kHz) and MP3 (≤24kHz)
- Ultra‑low standby current:< 5 µA
- Flexible control: 1‑wire / 2‑wire serial (UART/IIC coming)
WT588F02BP-14S
High‑Power Voice Chips with Built‑in Class‑D Amplifier, 3W Output
- 3W @ 5Vinto 4Ω – built‑in Class‑D amp, no LC filter
- 16‑bit PWM output, 6‑32 kHz sampling
- 1000 address segments– single/double‑byte control
- Protections– short‑circuit, over‑current,over‑temperature
WT588E02B-8S
Online Voice Replacement, Mixing, and MIDI Playback
- SPI control– easy integration with any MCU
- Online voice update– full or single‑address replacement
- 4‑channel mixing– 16kHz sampling rate
- 16‑channel MIDI– 8kHz playback
WT588F02KD-24SS
Integrated Voice Chip with 4‑Digit LED Driver, 8×2 Keyboard Scan
- 4‑digit LED driver– 8 segments per digit, common cathode
- 8×2 keyboard scan– 16 keys, auto key upload
- 32 individual LEDs– 8‑level brightness control
- UART control– 9600 baud
More Storage. More Possibilities.
Use internal memory or external SPI Flash to meut different audio length requirements.
Internal Memory
Built-in flash memory for compact voice files.
External SPI Flash
Expand storage for longer audio content.
Extended Audio Content
Supports more messages, more languages, and higher quality.
Short Prompts
Buttons, toys and simple voice alerts.
Multiple Messages
Home appliances and interactive devices.
Extended Audio
Advertising and voice guidance.
Application Solutions
One Technology. Multiple Applications.
Waytronic Flash Voice Chips are widely used in embedded audio products, providing reliable voice playback and multimedia audio solutions.
Smart Home
Smart switches, Smart locks, Smart appliances.
Security
Alarms, Access control, Monitoring devices.
Medical Devices
Medical equipment, Patient reminders, Diagnostic devices.
Toys
Interactive toys, Educational products, Talking toys.
Consumer Electronics
Small appliances, Digital devices, Personal electronics.
Read More→
Smart Lock
Smart locks, fingerprint locks, facial recognition locks
Audio Expertise
Focused on embedded voice and audio technologies.
Flexible Customization
Solutions adapted to different hardware and application requirements.
Manufacturing Capability
Stable production for scalable product deployment.
FAE Support
Engineering support from evaluation to mass production.
Development Support
From Evaluation to Production.
From chip selection and evaluation to hardware integration and mass production, our engineering support helps bring your audio product to market with confidence.
01 Requirement Analysis
02 Chip Selection
03 Audio Preparation
04 Programming & Testing
05 Sample Evaluation
06 Mass Production
Engineering Support
Helping customers select the right voice architecture.
Programming Tools
Support for voice content preparation and programming workflows.
Production Support
From prototype evaluation to scalable manufacturing.
Frequently Asked Questions
FAQs
Everything you need to know about selecting and integrating Flash Voice Chip solutions.
1. What is a Flash Voice Chip?
A Flash Voice Chip is a voice playback IC that stores audio data in rewritable Flash memory. Unlike one-time programmable solutions, it allows voice content to be updated or replaced when product requirements change.
2. What is the difference between a Flash Voice Chip and an OTP Voice Chip?
The main difference is memory flexibility. An OTP Voice Chip stores voice content permanently after programming, while a Flash Voice Chip uses rewritable memory that allows audio content to be modified multiple times.
3. Can I update the voice content after the product has been programmed?
Yes. Flash-based voice solutions are designed for applications where audio content may need to be updated during development, testing or throughout the product lifecycle. The specific update method depends on the chip and system design.
4. How much voice content can a Flash Voice Chip store?
Voice storage capacity depends on the available memory, audio sampling rate, encoding format and compression method. For applications requiring longer playback time, some solutions can use external memory to expand storage capacity.
5. Can I use multiple languages with a Flash Voice Chip?
Yes. A Flash Voice Chip can store multiple voice messages and language versions, provided sufficient memory is available. This makes it suitable for products designed for different regions and markets.
6. How do I control a Flash Voice Chip?
Depending on the chip model, Flash Voice Chips can support different control methods, such as standalone trigger inputs, key control or communication with a host MCU. The appropriate method depends on the required system functionality.
7. Are Flash Voice Chips suitable for battery-powered products?
Yes. Many Flash Voice Chip solutions are designed for low-power electronic products. However, actual power consumption depends on the operating mode, playback time, output configuration and peripheral components.
8. Can a Flash Voice Chip directly drive a speaker?
This depends on the specific chip architecture. Some voice ICs provide audio outputs that require an external amplifier, while others may integrate audio amplification capabilities. Always check the product specifications when selecting a solution.
9. How do I choose the right Flash Voice Chip for my application?
Start by evaluating your required voice duration, storage capacity, control method, power supply, audio output and package requirements. You should also consider whether the product needs future voice updates or additional audio functionality.
10. Can Waytronic provide technical support for Flash Voice Chip applications?
Yes. Waytronic can provide application-oriented support to help customers evaluate voice storage, control interfaces, audio output and other design requirements, helping identify a suitable solution for development and production.
Give Your Product a Voice That Can Evolve.
Explore flexible, reprogrammable voice solutions designed for today’s products and tomorrow’s updates.