SNC21120A中文資料松翰科技數(shù)據(jù)手冊PDF規(guī)格書

INTRODUCTION

SNC21120A is a one-channel voice synthesizer IC with Push-Pull direct drive circuit. It built-in a 4-bit tiny controller with four 4-bit I/O ports. By programming through the tiny controller in SNC21120A, 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

? System Clock is 2MHz, the instruction cycle is 4us

? 120 seconds voice capacity are provided (@6KHZ sample rate)

? Built in a 4-bit tiny controller

? I/O Port

? Four 4-bit I/O ports P1, P2, P3 and P6 are provided

? The driving/sink current of P3.2 & P3.3 is up to 8mA/16mA

? The IO pins P3.3 or P2.3 can be modulated with 38.5KHz carry signal to implement IR function.

? Without PWM IO

? 128*4 bits RAM are provided

? Maximum 16k program ROM is provided

? 384K*10 shared ROM for voice data and program

? Readable ROM code data

? Built-in one channel High Quality speech synthesizer

? Adaptive playing speed from 2.5k-20kHz is provided

? Automatic repetition

? Support 5-bit ADPCM and 10 bit PCM format.

? Built in an 8-level volume control Push-Pull DAC circuit output, can directly connected to Speaker for sound output.

? 12 bit Push-Pull DA output.

? Event Mark function supported.

? Low-Voltage Detect circuit

? Watch Dog Timer Reset function.