st2064b Sitronix Technology Corporation, st2064b Datasheet - Page 11

• Manufacturer Part Number: st2064b
• Description: 8 Bit Microcontroller With 64k Bytes Rom
• Manufacturer: Sitronix Technology Corporation

1
10.1 Description
ST2064B can supply total 24 GPIOs divided into three I/O ports,
Port-A, Port-B, and Port-C. Besides I/O function, Port-B/C can
also be used as LCD segment drives. For detail pin assignment,
please refer to TABLE 10-1
Ver. 3.0
1
0
0
.
PORT NAME
.
COM[8~15]
I
I
/
Port-A
Port-B
Port-C
/
O
O
P
P
O
O
R
R
T
T
SEG40/PB0
SEG41/PB1
SEG42/PB2
SEG43/PB3
SEG44/PB4
SEG45/PB5
SEG46/PB6
SEG47/PB7
SEG32/PC0
SEG33/PC1
SEG34/PC2
SEG35/PC3
SEG36/PC4
SEG37/PC5
SEG38/PC6
SEG39/PC7
PAD NAME
PA0/INTX
S
S
COM10
COM11
COM12
COM13
COM14
COM15
COM8
COM9
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PAD NUMBER
54
55
56
57
58
59
60
61
35
36
37
38
39
40
41
42
27
28
29
30
31
32
33
34
75
76
77
78
79
80
81
82
TABLE 10-1 I/O Description
PIN TYPE
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
11/57
O
O
O
O
O
O
O
O
NOTE
to minimize standby current
Programmable input/output pin
Programmable input/output pin
Programmable input/output pin
Programmable open drain output pin
: all of unused input pins should be pulled up
FEATURE
ST2064B
5/8/09