1 INTRODUCTION
SNC108 is a one-channel voice synthesizer IC with PWM direct drive circuit. It built-in a 4-bit tiny controller with one 4-bit input port, two 4-bit I/O ports. By programming through the tiny controller in SNC108, 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 – 5.1V
* 52 seconds voice capacity are provided(@6KHZ sample rate)
* Built in a 4-bit tiny controller
* One 4-bit input port, two 4-bit I/O ports are provided
* 64*4 bits RAM are provided
* 160K*10 ROM size are provided for voice data and program
* Maximum 16k program ROM is provided
* Built in a high quality speech synthesizer
* Adaptive playing speed from 2.5k-20kHz is provided
* One voice channel
* Built in a PWM Direct Drive circuit and a fixed current D/A output
* System clock : 2MHz
* Low Power Reset

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