ST

ST20P16

16K 8-bit Single Chip Microcontroller

Notice: Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice. This is not a final specification.

Some parameters are subject to change.

Ver 1.5

6/13/07

1

S

8-bit static pipeline CPU

ROM: 16K x 8 bits

RAM: 192 x 8 bits

Operation voltage : 2.4V ~3.6V

24 CMOS Bi-directional bit programmable I/O pins

- Twenty (Port-A high nibble & Port-B/C) are shared with

LCD drives

6 Output pins (Four are shared with LCD common and two are

shared with PSG)

2 Input pins (code option: Shared with OSCX)

Hardware debounce option for input port

Bit programmable PULL-UP for input port

Timer/Counter :

- One 8-bit timer / 16-bit event counter

- One 8-bit BASE timer

Five powerful interrupt sources :

- External interrupt (edge trigger)

- TIMER1 interrupt

- BASE timer interrupt

- PORTA[7~0] interrupt (transition trigger)

- DAC reload interrupt

32-level deep stack

Dual clock source :

- OSCX: Crystal oscillator: 32768Hz

- OSC: RC oscillator 500K ~ 4M Hz

CPU clock

250k ~ 2M Hz

Build-in oscillator with warm-up timer

LCD controller driver:

- 16 level contrast control

- 320 ( 8x40) dots ( 1/8 duty, 1/4 bias, programmable)

- 160 ( 4x40) dots ( 1/4 duty, 1/3 bias, programmable)

- Two clock source options: RC and resonator oscillator

- Keyboard scan function supported on 20 shared segment

drives

- Internal bias resistors(1/4 bias & 1/3 bias) with 32 level

driving strength control

Programmable Sound Generator (PSG) includes :

- Tone generator

- Sound effect generator

- 16 level volume control

- Digital DAC for speech / tone

Three power down modes :

- WAI0 mode

- WAI1 mode

- STP mode

2

N

ST20P16 is a low-cost, high-performance, fully static,

8-bit

microcontroller designed with CMOS silicon gate technology. It

comes with 8-bit pipeline CPU core, SRAM, timer, LCD driver,

I/O port, PSG and mask program ROM. A build-in dual oscillator

is specially integrated to enhance chip performance. For business

equipment and consumer applications. Such as watch, calculator,

and LCD game , ST20P16 is definitely a perfect solution for

implementation.