ML610Q327, ML610Q338 and ML610Q339 of MCUs with speech output function utilizes a proprietary 8bit U8 core to achieve superior performance.In addition, a hardware-based high fidelity speech playback function and high output speaker amplifier make it possible to provide speech functionality on a single chip, improving audio quality, simplifying control, and maximizing MCU performance.ML610Q327, ML610Q338 and ML610Q339 adopt the newly developed high fidelity, high compression sound algorithm HQ-ADPCM that provides a clearer sound and richer audio range while reducing data size compared with conventional ADPCM, providing a more comfortable listening experience.Playback time is about 70 seconds*1 for ML610Q327 and about 95 seconds*1 for ML610Q338 / ML610Q339. Also, if you connect a Flash memory (up to 128Mbit), you can play for a longer time.This superior playback functionality, combined with a low power high performance U8 core,3V/5V compatible power supply and broad peripheral control functions, provide a single-chip solution for both battery- and AC-driven products.*1:When the program area is 16KB, selecting HQ-ADPCM and 6.4kHz sampling rate