SNC521 One Channel Direct Drive Speech Controller 1 INTRODUCTION SNC521 is a one-channel voice synthesizer IC with PWM direct drive circuit.
It built-in a 4-bit tiny controller with two 4-bit I/O ports.
By programming through the tiny controller in SNC521, user’s varied applications including voice section combination, key trigger arrangement, output control, and other logic functions can be easily implemented.
2 FEATURES Single power supply 2.
4V – 5.
5V 10 seconds voice capacity are provided(@6KHZ sample rate) Built in a 4-bit tiny controller Two 4-bit I/O ports are provided 64*4 bits RAM are provided 32K*10 ROM size are provided for voice data and program Maximum 16k program ROM is provid...

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