WT588D series voice single chip is a voice chip with integrated MCU and voice circuit developed by Guangzhou WeiChuang Technology Co., Ltd. and Taiwan HuaBang. WT588D series voice single chip has multi-function, good sound quality, wide application range, stable performance and strong advantages, which make up for the narrow application range of various voice chips. MP3 control mode, key control mode, key combination control mode, parallel control mode, one-wire serial control mode, three-wire serial control mode and three-wire serial control I/O port expansion output mode make it possible for application personnel to place products in almost any imaginable places.
This manual describes the WT588D series voice microcontroller, a highly integrated chip that combines a microcontroller core with voice processing functions. It details the chip’s features, supported audio formats, and the various control modes that enable flexible integration into products such as alarms, toys, and industrial devices.
The document includes pin tables for multiple package types, electrical parameters, environmental limits, typical application circuits, and programming examples for both one‑wire and three‑wire serial interfaces. Source information and version history are also provided for reference. This manual is written in Chinese.
| Operating voltage | DC2.8V–5.5V |
|---|---|
| Static sleep current | <10 µA |
| Reset time | 17 ms |
| Serial code time | 40 µs–4000 µs |
| Supported audio sample rate | 6 kHz–22 kHz |
| SPI‑Flash capacity | 2 MB–32 MB |
| Voice address positions | 220 |
| Voice segments per address | 128 |
| Editable voice segments | up to 500 |
| PWM speaker drive capability | 0.5 W/8 Ω |
It supports MP3 control mode, key control mode, 3×8 matrix key control mode, parallel port control mode, one‑wire serial control mode, three‑wire serial control mode, and three‑wire serial I/O expansion output mode.
The chip can control up to 220 voice address positions.
The operating voltage range is DC 2.8 V to 5.5 V.
Up to 500 editable voice segments can be loaded.