SNC12168 Datasheet, PDF (4/9 Pages) SONiX Technology Company – One Channel Speech Controller

Test
I Test pin
SNC12168
One Channel Speech Controller
4. Block Diagram
ROM
Program/Speech
512K×10 bits
Address Pointers/ STACK
Timing
Generator
OSC
SRAM (128 nibbles) _{Sampling Rate Counter Watch Dog}
Timer
Timer
ALU
Voice
Synthesizer
Push-Pull
Circuit
IO port 1
IO port 2
IO port 3
IO port 6
5. FUNCTION DESCRIPTIONS
5.1 Oscillator
SNC12168 accepts RC type oscillator for system clock. The typical circuit diagram for
oscillator is listed as follows.
OSC
VCC
RC Oscillator
5.2 ROM
SNC12168 contains a substantial 512K words (10-bit) internal ROM, which is shared
by program and resource data. Program, voice and data are shared within this same
512K words ROM.
Ver: 1.4
4
March 17, 2005