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| ST2108 |
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| 8
BIT Microcontroller with 1M bytes ROM |
| Features: |
| · |
Totally
static 65C02S CPU |
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ROM:
1M x 8-bit |
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RAM:
4K x 8-bit |
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Stack:
Up to 128-level deep |
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Operation
voltage: 2.4V ~ 3.4V |
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I/O
ports
- 24 CMOS bidirectional bit programmable
I/O pins
- 8 output pins (shared with LCD common
output)
- Bit programmable pull-up for input
pins
- Hardware de-bounce option for Port-A
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| · |
Low
voltage detector |
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Timer/Counter:
- Two 8-bit timer/16-bit event counter
- One 8-bit Base timer |
| · |
6
Prioritized interrupt sources
- External interrupt (edge triggered)
- Timer0 interrupt
- Timer1 interrupt
- Base timer interrupt
- Port-A[7~0] interrupt (transition
triggered)
- DAC reload interrupt |
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Dual
clock source with warm-up timer
- Crystal oscillator ...32.768K Hz
- RC oscillator ...500K~4M Hz
- Resonator oscillator (code option)...455K~4M
Hz |
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Direct
memory access (DMA)
- Block-to-Block move
- Block to Single port |
| · |
LCD
controller
- 16-level contrast control
- 1752 (73x24) dots (1/24 duty)
- 1168 (73x16) dots (1/16 duty)
- Tone/noise generator
- 16-level volume control |
| · |
Programmable
sound generator (PSG)
- Two channels with three playing
modes
- Tone/noise generator
- 16-level volume control |
| · |
PWM
DAC: Three modes up to 8-bit resolution
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Three
power down modes:
- WAI0 mode
- WAI1 mode
- STP mode |
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| The ST2108 is a W65C02S based 8-bit microcontroller
designed with CMOS silicon gate technology.
This single chip microcontroller is useful
for translator, databank and other consumer
applications. It integrates with SRAM,
mask program ROM, LCD controller/drivers,
I/O ports, timers, PSG and PWM DAC. This
chip also builds in dual oscillators for
the chip performance enhancement. |
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