Ti
tle
SCALE
SI
ZE
Sheet
DRAW
N
CHECKED
ENG. APP.
Rev
ision:
DO NOT
COPY
NOR
DISCL
O
SE TO
ANY
T
H
IRD PART
Y
W
ITH
O
U
T W
R
ITTEN
CONSENT
of
1
IR
T
Elect
ronics Pt
y.
Lt
d.
Dr
aw
ing
No.
CO
PYRI
G
HT
ART
A
RM
O
N
NSW
AUST
RALI
A 2064
A3
N.
T
.S.
4
DSS-
1100
804106
Dat
e:
6-O
ct
-2009
1 12-03-02
8x
4 G
.703 SW
IT
CHER
R73
10M
XL1
3.
6864M
hz
C50 10pF
C49
10pF
VO
UT
1
VBAT
8
PF
I
4
GND
3
VCC
2
PF
O
5
MR
6
RST
7
U6
M
AX704
R74 100K
+V
C
+V
C
+V
C
+V
C
+V
C
R88
560R
R87
560R
R86
560R
R85
560R
R78
560R
R82
560R
R81
560R
R80
560R
2
1
LD1 SERIAL
2
1
LD2 LD
R70 560R
R71 560R
+5V
+5V
RO
W
D0 PL1/
3A
RO
W
D1 PL1/
2B
RO
W
D2 PL1/
2A
RO
W
STRO
BE PL1/
3B
O
/P D0 PL2/
3A
O
/P D1 PL2/
2B
O
/P D2 PL2/
2A
O/P ST
ROBE PL2/3B
VS1-4 29 VS4 30 VS3 30 VS2 30 VS1 30
VS1-4 28 VS1-4 27
8
7
1
2
6
5
4
3
R
D
U7
M
AX485
8
7
1
2
6
5
4
3
R
D
U8
M
AX485
LK2
R75
4K7
+V
C
+V
C
+5V
R76 220R
R77
220R
LK3
LK4
P2/
19ab
P2/
18ab
P2/
17ab
P2/
16ab
C51,
53,
54,
56,
58
10uF
C52,
55,
57,
59
100nF
+V
C
+V
C
R72 4K7
LK1
+5V
RP3 4K7
SW
1
+V
C
ADDRESS
BAUD RATE
Nam
e
804106S2.
S
CH
Nam
e
804106S3.
S
CH
Nam
e
804106S4.
S
CH
RESET
1
IRQ
2
VPP
3
PA7
4
PA6
5
PA5
6
PA4
7
PA3
8
PA2
9
PA1
10
PA0
11
PB0
12
PB1
13
PB2
14
PB3
15
PB4
16
PB5
17
PC6
22
PC5
23
PC4
24
PC3
25
PC2
26
PC1
27
PC0
28
PD0/RDI
29
PD1
/TDO
30
PD2
/M
ISO
31
PD3
/M
O
SI
32
PD4
/SCK
33
PD5
/SS
34
TC
M
P
35
PD7
36
VSS
20
VDD
40
PB7
19
PB6
18
PC7
21
OSC
1
39
OSC
2
38
TC
AP
37
U5
M
C
68HC705C8
2
7
8
3
PC
804189
X
X
X
X
X
X
X
X
I
O
I
MS
B
LSB
BAUD RATE
O
O
O
I
I
38,
900
19,
200
9,
600
4,
800
RATE
O
O
I
O
O
I
I
I
MS
B
LSB
ADDRESS
O
O
O
THRO
UG
H TO
I
0
15
ADDRESS
1
