SN66021 4-Channel Speech Controller

SN66021 4-Channel Speech Controller

I I I I Bit0 of input port 1 Bit1 of input port 1 Bit2 of input port 1 Bit3 of input port 1 I/O Bit0 of I/O port 2 I/O Bit1 of I/O port 2 I/O Bit2 of I/O port 2 I/O Bit3 of I/O port 2 I/O Bit0 of I/O port 3 I/O Bit1 of I/O port 3 I/O Bit2 of I/O port 3 I/O Bit3 of I/O port 3 O O O O I I I O I Bit0 .

Features

Š Š Š Š Š Š Š Š Š Š Š Š Š Š Š Š Single power supply 2.4V
  – 5.1V Built in a tiny controller 20 seconds voice capacity are provided One 4-bit input port, two 4-bit I/O ports and one 4-bit output port are provided 256*4 bits RAM are provided Maximum 64k program ROM is provided Readable ROM code data Built in a high quality speech synthesizer Four independent voice channels Adaptive playing speed from 4k-40kHz is provided for all 4 channels individually Automatic repetition for every channel A 6-bit*8-bit Multiplier is embed to modulate the volume of synthesized voices Two digital mixers (with sat.