SN52020中文资料松翰科技数据手册PDF规格书

INTRODUCTION

SN52020 is a 20 seconds single chip 2-channel voice synthesizer IC which contains I/O pins and a tiny controller. By programming through the tiny controller, users’ applications including section combination, trigger modes, output status, high performance melody, multiple voices, and other logic functions can be implemented.

FEATURES

♦ Single power supply 2.4V – 5.5V

♦ Built in a tiny controller

♦ 20 seconds voice capacity are provided

♦ 64*4 bits RAM are provided

♦ ROM Size

− Maximum 64K*10 bits ROM size

- 64K program ROM is provided

♦ Readable ROM code data

♦ I/O Ports

- One 4-bit I/O ports P3

- The driving/sink current of P3.2 & P3.3 are 8mA/16mA

♦ Built in a high quality speech synthesizer

♦ Two independent voice channels

♦ Adaptive playing speed from 4k-40kHz is provided for all 2 channels individually

♦ A 6-bit*8-bit Multiplier is embed to modulate the volume of synthesized voices

♦ One digital mixers (with saturation control) are provided

♦ Built in an 8-level volume control Analog Push-Pull Direct Drive circuit.

♦ System clock: 2M Hz (RC-type or Crystal Option)

♦ Low Voltage Reset

♦ Built-in WDT function

♦ Built-in Event Mark Function