INTRODUCTION
SN65004 Series is 4 seconds one-channel single chip voice synthesizer IC which contains a PWM Direct Drive Circuit. There is one 2-bit I/O port and built in a tiny controller. By programming through the tiny controller, user’s applications including section combination, trigger modes, output status, and other logic functions can be easily implemented.

FEATURES
♦ Single power supply 2.4V – 5.1V
♦ 4 seconds voice capacity is provided
♦ Built in a tiny controller
♦ One 2-bit I/O port is provided
♦ 32*4 bits RAM are provided
♦ Maximum 16k program ROM is provided
♦ Readable ROM code data
♦ Built in a high quality speech synthesizer
♦ Adaptive playing speed from 2.5k-20kHz is provided
♦ Built in a PWM Direct Drive circuit output BUO1 and BUO2 directly connected to Speaker for sound output
♦ System clock: 1MHZ