The iFlytek XFS4041CN data sheet details specifications, pin definitions, communication interfaces, and usage of this Chinese speech synthesis chip.
The XFS4041CN is a high‑performance Chinese speech synthesis chip from iFlytek Digital Technology Co., Ltd. It receives text via UART or SPI and outputs synthesized speech, targeting applications such as vehicle GPS terminals, POS machines, and smart toys. The chip is supplied as a dual‑chip module (XFS4041A and XFS4041B) and supports multiple voice personalities and built‑in prompt sounds.
The document provides a complete overview of the chip’s architecture, pinout tables, control commands, communication protocols, electrical characteristics, mechanical dimensions, and guidelines for adding custom prompt sounds. Appendices list text control markers and built‑in prompt audio names. This manual is written in Chinese.
| Maximum text length per synthesis | 4 kB |
|---|---|
| Supported communication interfaces | UART, SPI |
| Supported chip modes | Normal, Power Down, IDLE |
| Package XFS4041A dimensions | LQFP128, 14 mm × 14 mm × 1.4 mm |
| Package XFS4041B dimensions | TQFP48, 7 mm × 7 mm × 1.0 mm |
| Peak reflow solder temperature | 240 °C – 260 °C |
| Built‑in prompt sounds | 20 different sounds |
You can check the RDY pin level (high means synthesizing, low means idle) or send a status query command frame to receive a software response.
The chip supports both UART and SPI interfaces for receiving text to be synthesized.
Each synthesis operation can handle up to 4 kB of text data.