INTRODUCTION
SNC11B 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 SNC11B, 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 – 5.1V
♦ 85 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
♦ 256K*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