W584A011 is a 4-bit microcontroller-based speech synthesizer with PWM mode output to drive the speaker directly. The synthesizer contains one voice-channel and dual-tone melody. It has Ultra I/O™, W584A011 which simplifies the procedure of defining the output pattern. W584A011 operates over a wide voltage range from 2.2V ~ 5.5V and built in PWM/DAC audio output, IR, WDT and LVR.
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