SNC21268A
1-CH H.Q. Speech Controller
1. INTRODUCTION
SNC21268A 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 SNC21268A, user’s varied applications including voice section
combination, key trigger arrangement, output control, and other logic functions can be
easily implemented.
2. FEATURES
Single power supply 2.4V – 5.5V
System Clock is 2MHz, the instruction cycle is 4us
268 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.
6 PWM output for IO (P3.0~P3.3 & P6.0~P6.1)
128*4 bits RAM are provided
Maximum 16k program ROM is provided
816K*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 and 12 bit current DAC output
Event Mark function supported.
Low-Voltage Detect circuit
Watch Dog Timer Reset function.
Ver1.1
3
November 6, 2009
SONIX [ SONIX TECHNOLOGY COMPANY ]
