SN6A509B LCD Controller with Voice/Dual Tone Melody INTRODUCTION SN6A509B is a series of single chip voice/dual tone melody synthesizer IC with 16*64/8*64 LCD direct drive capability which contains two 4-bit I/O ports, two optional 4-bit output ports and a tiny controller.
By programming through the tiny controller, user’s application including LCD display, section combination, trigger modes, output status, voice/melody playing and other logic functions and then be easily implemented.
FEATURES Single power supply 2.
4V – 5.
1V Built in a tiny controller Two 4-bit I/O ports, two optional 4-bit output ports are provided 256*4 bits RAM for programming usage are provided 256*4 bits RAM for LCD d...

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