Dear customer st LAPIS Semiconductor Co., Ltd. LAPIS Semiconducto), on the 1 day of October, 2020, implemented the incorporation-type company split (shinsetsu-bunkatsu) in which LAPIS established a new company, LAPIS Technology Co., Ltd. (LAPIS Technology) and LAPIS Technology succeeded LAPIS Semiconductors LSI business. Therefore, all references toLAPIS Semiconductor Co., Ltd,LAPIS Semiconducto and/orLAPI in this document shall be replaced withLAPIS Technology Co., Ltd Furthermore, there are no changes to the documents relating to our products other than the company name, the company trademark, logo, etc. Thank you for your understanding. LAPIS Technology Co., Ltd. October 1, 2020 FEDL22Q66X-02 Issue date: Jul 17, 2020 ML22Q663 / ML22Q664 / ML22Q665 / ML22Q666 4- Channel Mixing Speech Synthesis LSI with Built-in Flash Memory Overview ML22Q663/ML22Q664/ML22Q665/ML22Q666 is a 4-channel mixing speech synthesis LSI with a flash memory for sound data. It is equipped with a I2C interface (slave). *1 It adopts a HQ-ADPCM , 16-bit D/A converter, and low-pass filter for high sound quality, and incorporates a 1.0W mono speaker amplifier for driving speakers directly. It is also equipped with a function to detect failure. The functions necessary for sound output are integrated into a single chip, so that sound functions can be realized simply by adding this LSI. *1 Memory capacity and maximum sound production time (HQ-ADPCM algorithm, registered phrase 1024) Product Name Flash memory capacity Maximum sound production time (sec) f =8.0kHz f =16.0kHz f =32.0kHz s s s ML22Q663 4Mbits 161 81 40 ML22Q664 8Mbits 325 162 81 ML22Q665 16Mbits 652 326 163 ML22Q666 32Mbits 1308 654 327 Analog Signal FLASH MEMORY 16bit Speaker Decode Filter MIX MIX DAC AMP Volume HOST 2 I C MCU Application Circuit *1 HQ-ADPCM isKy high-quality audio compression technique. Ky is a registered trademark of Kyushu Institute of Technology, a national university corporation.