Overview
WT588E02B-8S is Guangzhou Waytronic Electronics Co., Ltd.’s latest developed 16-bit DSP voice chip, featuring an internal oscillator of 32 MHz and 16-bit PWM decoding. Its powerful functions make WT588E02B-8S a leader in the voice chip industry. Currently, WT588E02B-8S can support storing up to 170 seconds of high-quality audio content (if the customer does not require high quality, it can store up to 320 seconds of audio content). Unlike traditional OTP chips, the most significant breakthrough of WT588E02B-8S is that customers can update the voice content inside the chip online using an MCU or a dedicated downloader. Additionally, the chip includes built-in hardware resources such as SPI, UART, IIC, and comparators, allowing for customization of various personalized functional products.
Functional Overview
- 1. 16-bit DSP voice chip, 32MHz internal oscillator;
- 2. Operating voltage 2.0~5.5V;
- 3. 16-bit PWM/DAC output, capable of directly driving 8Ω 0.5W speakers;
- 4. Supports WAV files from 6kHz to 32kHz;
- 5. Customers can update the voice content inside the chip online via MCU or a dedicated downloader;
- 6. Supports analog SPI communication;
- 7. Supports up to 4-channel mixing at 16K sampling rate;
- 8. Supports up to 16 MIDI channels playback at 8K sampling rate;
- 9. Supports 224 address segments, with more needs available for expansion;
- 10. Equipped with hardware SPI interface, UART interface, IIC, built-in comparator, and other interfaces. Custom functions can be tailored for customers;
- 11. The chip has 220KB of built-in storage (excluding main control program);
- 12. Both the chip’s main control program and the built-in storage data can be erased and rewritten;
- 13. The chip’s power-on initialization time is approximately 200ms.
Selection notes:
- 1. For any other customization needs, please contact our sales representative;
- 2. For chips requiring lower standby power consumption, please contact our sales representative.
Pin Description

Pinout diagram
Pad Name | Pad No. | ATTR. | Description describe |
PC2/BUSY/SO | 1 | I/O | Master input/slave output data line |
PC1/CS | 2 | I/O | Low-level active slave selection line |
PI0/SCK | 3 | I/O | Serial clock line |
PI1/SI | 4 | I/O | Master output/slave input data line |
PWMN | 5 | I/O | PWM output pin |
VDD | 6 | Power | positive terminal of the power source |
PWMP | 7 | I/O | PWM output script/DAC |
GND | 8 | Power | negative terminal of the power source |
- Supports offline programming download for WTN6/WT588/WTV, WT2003H series chips, including mechanical arm batch programming.
- Supports testing and communication protocols such as first-line, second-line, UART, IIC, SPI.
- Supports displaying the checksum of the programming file, programming mode, test address, etc., on the digital tube.
- Supports status indication for BUSY playback, power state, and mode indicator lights.





