st2032a Sitronix Technology Corporation, st2032a Datasheet - Page 7

• Manufacturer Part Number: st2032a
• Description: 8 Bit Microcontroller With 32k Bytes Rom
• Manufacturer: Sitronix Technology Corporation

6
Note: I = input, O = output, I/O = input/output, P = power.
Ver 2.4
6
.
.
P
P
A
A
Pin No.
20~35
36~55
10~16
64~71
56~63
72,73
2,3
D
17
18
19
74
D
9
4
5
6
7
8
1
D
D
E
E
S
S
C
C
OSCXO, OSCXI
PSGO,PSGOB
R
R
SEG20/PC0~
SEG28/PB0~
Designation
SEG35/PB7
SEG27/PC7
VDD, AVDD
COM0~15
PA0 / INTX
SEG0~19
I
I
RESET
PA1~7
P
CAP1+
P
CAP1-
OSCI
PVCC
GND
TEST
XIO
VP
T
T
I
I
O
O
N
N
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
P
P
I
I
I
I
I
I
I
I
I
LCD common drive output pins, drives 0~15
LCD segment drive output pins, drives 0~19
- Port-A bit programmable I/O
- Edge-trigger Interrupt.
- Transition-trigger Interrupt
- Programmable Timer1 clock source
- Port-A bit programmable I/O
- Transition-trigger Interrupt
- Port-B bit programmable I/O
- LCD segment drives 28~35
- Port-C bit programmable I/O
- LCD segment drives 20~27
PSG/ PWM DAC Outputs
Low frequency crystal oscillator I/O pins. Connect to external 32768 Hz
crystal.
Reset signal input (low active)
- RC oscillator input pin. Connected to external resistor
- High frequency crystal/resonator oscillator input pin. Connect to external
- NC
- High frequency crystal/resonator oscillator output pin. Connect to external
Ground pin
Power supply pin, Analogy Power supply pin
Connect to booster capacitor positive(+) terminal
Connect to booster capacitor negative(-) terminal
Voltage output of booster circuit
Chip test function. Leave it open.
PSG power input
crystal/resonator.
crystal/resonator.
7/54
Description
ST2032A
9/13/07