SNC21120 Datasheet, PDF (4/11 Pages) SONiX Technology Company – 1-CH H.Q. Speech Controller

3. PIN ASSIGNMENT
Symbol
I/O
P10~P13 I/O
P20~P23 I/O
P30~P33 I/O
P60~P63 I/O
RST
I
TEST
I
FUSEPAD
I
OSC
I
RCSEL
I
DAON
O
DAOP
O
DACO
O
VDD
P
GND
P
SNC21120
1-CH H.Q. Speech Controller
Function Description
I/O port 1: IO
I/O port 2: IO
I/O port 3: IO
I/O port 6: IO
Reset Chip (Active H)
Test pin
Fuse mode selection pad
The test mode clock input pad or OSC
Ring OSC R selection
Push-Pull output 1
Push-Pull output 2
Current DAC output
Positive power supply
Negative power supply
4. Block Diagram
ROM
Program/Speech
Address Pointers/ STACK
Timing
Generator
OSC
SRAM (128 nibbles) _{Sampling Rate Counter Watch Dog}
Timer
Timer
ALU
Voice
Synthesizer
Push-Pull
Circuit
PWM IO
IO port 1
IO port 2
IO port 3
IO port 6
Ver: 1.0
4
November 08, 2006