INTRODUCTION
SNC205S is a single channel voice synthesizer IC with PWM direct drive circuit. It built-in a 4-bit tiny controller with one 4-bit I/O port. By programming through the tiny controller in SNC205S, user’s varied applications including voice section combination, key trigger arrangement, output control, and other logic functions can be easily implemented.

FEATURES
♦ Single power supply 2.4V – 5.5V
♦ 16 seconds voice capacity are provided (@6KHZ sample rate)
♦ Built in a 4-bit tiny controller
    Where P3.2, P3.3 can direct drive LED (8mA for driving, 16mA for sink)
♦ One 4-bit I/O port is provided
♦ 32*4 bits RAM are provided
♦ 52K*10 ROM size are provided for voice data and program
♦ 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 and a fixed current D/A output
♦ 8-level volume control for PWM Direct Drive output
♦ System clock: 2MHz
♦ Low Power Detect