ST
Sitronix
ST2064B
PRELIMINARY
8 BIT Microcontroller with 64K bytes ROM
Notice: This is not a final specification. Some parameters are subject to change.
Ver. 1.2
1
/
51 8/4/03
1
1
.
.
F
F
E
E
A
A
T
T
U
U
R
R
E
E
S
S
Totally static 65C02S CPU
ROM: 64K x 8-bit
RAM: 2432 x 8-bit
Stack: Up to 128-level deep
Operation
voltage:
DC-DC Converter Enable:2.4V ~ 3.6V
DC-DC Converter Disable:2.4V ~ 5.5V
Built-in double DC-DC voltage converter for LCD driver
I/O
ports
- 24 CMOS bidirectional bit programmable I/O pins,
sixteen (Port-B/C) are shared with LCD drives
- 8 open drain output pins are shared with LCD drives
- 2 COMS output pins are shared with PSG drives
- Bit programmable pull-up for input pins
- Hardware de-bounce option for Port-A
Low voltage detector
Timer/Counter:
- Two 8-bit timer/16-bit event counter
- One 8-bit Base timer
6 hardware interrupts with dedicated exception vectors
- External interrupt (edge triggered)
- Timer0 interrupt
- Timer1 interrupt
- Base timer interrupt
- Port-A[7~0] interrupt (transition triggered)
- DAC reload interrupt
Dual clock sources with warm-up timer
- Low frequency crystal oscillator
32768 Hz
- RC oscillator 500K ~ 4M Hz
- High frequency crystal/resonator oscillator (code option)
455K~4M Hz
LCD
controller/driver
- Resolution: 32x8 ~ 48x16, maximum 768 dots
- Two clock source options: RC and resonator oscillator
- Internal bias resistors (1/5 bias/1/4 bias) with 16-level
driving strength control
- Up to 16-level contrast control
- Keyboard scan function supported on 16 shared
segment drives
Programmable sound generator (PSG)
- Two channels with three playing modes
- Tone/noise generator
- 16-level volume control
- Dedicated outputs for directly connection to buzzer
PWM DAC: Three modes up to 8-bit resolution
Three power down modes:
- WAI0 mode
- WAI1 mode
- STP mode
2
2
.
.
G
G
E
E
N
N
E
E
R
R
A
A
L
L
D
D
E
E
S
S
C
C
R
R
I
I
P
P
T
T
I
I
O
O
N
N
The ST2064B 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 ROM,
LCD controller/driver, DC-DC voltage converter, I/O ports,
timers, PSG and PWM DAC. This chip also builds in dual
oscillators for the chip performance enhancement.
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