One Channel Speech Controller
SNC15168
1. INTRODUCTION
SNC15168 is a one-channel voice synthesizer IC with PWM 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 SNC15168, 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
168 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, P4 and P5 are provided.
−
The driving/sink current of P2 & P5 is up to 8mA/16mA
−
The IO pins P2.3 can be modulated with 38.5Khz carry signal to implement IR
function.
128*4 bits RAM are provided
Maximum 64k program ROM is provided
352K*12 shared ROM for voice data and program
Readable ROM code data
Built in one channel speech synthesizer
Adaptive playing speed from 2.5k-20kHz is provided
Built in an PWM circuit output, can directly connected to Speaker for sound
output.
System clock: 2MHz
Event Mark function supported
Low Power Detect.
Watch Dog Timer Supported
3. PIN ASSIGNMENT
Symbol
P10~P13
P20~P23
P40~P43
P50~P53
Rosc
BUO1
BUO2
RST
VDDIO
GNDIO
CVDD
CGND
Test
Ver: 1.5
I/O
I/O
I/O
I/O
I/O
I
O
O
I
I
I
I
I
I
Function Description
I/O port 1: IO
I/O port 2: IO
I/O port 4: IO
I/O port 5: IO
Oscillation component connection pin
PWM output 1
PWM output 2
RST=1 Reset Chip (Active H)
Positive power supply for I/O
Negative power supply for I/O
Positive power supply for internal core
Negative power supply for internal core
Test pin
3
October 30
, 2008
SONIX [ SONIX TECHNOLOGY COMPANY ]
