19
18
17
16
15
14
13
12
17 D3
18 D4
19 D5
20 D6
21 D7
22
23 A10
24
25 A11
26 A9
27 A8
28 A13
29
30
31
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
U5
CLK
OC
74HC574
U6
1uF 50V
1uF 50V
HM628512
2
3
4
5
6
7
8
9
D1
D2
D3
D4
D5
D6
D7
D8
11
1
D0
D1
D2
D3
D4
D5
D6
D7
D1
D2
D3
D4
D5
D6
D7
D8
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
19
18
17
16
15
14
13
12
C
OC
D2 15
D1 14
D0 13
12
11
10
9
8
7
6
5
A12 4
A14 3
2
1
D2
D1
D0
A0
A1
A2
A3
A4
A5
A6
A7
A12
A14
A16
A18
D3
D4
D5
D6
D7
/CS
A10
/OE
A11
A9
A8
A13
/WE
A17
A15
2
3
4
5
6
7
8
9
11
1
D0
D1
D2
D3
D4
D5
D6
D7
1
A14
A13
A12
A11
A10
A9
A8
RN1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
13
CEN
S/AES
MUTE
H/S
SFMT1
SFMT0
L4
FERRITE BEAD
VD
MRST
R31
2 Ohms
4
5
10
8
1
3
T2 IN
R2 IN
C1+
C1-
C2+
C2-
U9
VD
11
13
T1 IN
R1 IN
15
8x 47K
PA3(AD3)
PA4(AD4)
PA5(AD5)
PA6(AD6)
PA7(AD7)
ALE
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
/RD
/WR
GND
ATmega103
1
22
DS232
VD
V+
V-
1
22
R32
1
VD
TP29
14
LED_G
TP30
TP31
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1K
2
VD
16
/PEN
PE0/RXD
PE1/TXD
PE2
PE3
PE4
PE5
PE6
PE7
PB0/CS
PB1/CCLK
PB2/CDIN
PB3/CDOUT
PB4
PB5
PB6
NC
U10
1
+
VD
1
1
14
15
4
X
Y
Z
9
7
5
3
1
X0
X1
Y0
Y1
Z0
Z1
INH
A
B
C
12
13
2
1
5
3
6
11
10
9
10
8
6
4
2
DS245DB4
VD
+
C25
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
.1uF
C26
C27
C28
C23
C24
+
C29
C30
C31
U7
74HC573
U2D
74VHC125
R30
D5
2
825
D[0-7]
A[8-14]
LED_G
1
11
12
P1
VD
U8
T1 OUT
R1 OUT
14
12
5
9
4
8
3
7
2
6
1
T2 OUT
R2 OUT
7
9
2
6
CONNECTOR DB9
D6 1N4148
D7 1N4148
D8 LED_G
D9
R33
C37
.1uF
6.000MHz
8
Out GND
7
1000pF
TCBLD
APMS
U11
74HC4053
SUP5
SUP4
SUP3
SUP2
SUP1
SUP0
HDR6X2
Size
B
Date:
B
C
D
VD
2
3
4
5
6
7
8
9
S6
8
7
6
5
4
3
2
1
9
10
11
12
13
14
15
16
SW DIP-8
D10
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
PA2(AD2)
PA1(AD1)
PA0(AD0)
VD
GND
PF7(ADC7)
PF6(ADC6)
PF5(ADC5)
PF4(ADC4)
PF3(ADC3)
PF2(ADC2)
PF1(ADC1)
PF0(ADC0)
AREF
AGND
AVCC
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0/INT0
XTAL1
XTAL2
GND
VD
/RST
TOSC1
TOSC2
PB7
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
LED_R
VD
R35
100
C38
.1uF
C33
.1uF
J10
CDOUT
CDIN
CCLK
/CS
INT
/RESET
Title
1uF 50V
C34
C32
C35
.1uF
C36
.1uF
C39
.1uF
680
R34
680
R36
100
/PGM
J9
R37
100
12
10
8
6
4
2
11
9
7
5
3
1
HDR5X2
Semiconductor Products Division
CS8420 Marketing Evaluation Board
Rev
Document Number
SCHM DWG CDB8420 (600-00100-01)
Wednesday, November 12, 2003
Sheet
E
TP32
VD
D
3
of
3
A
Figure 4. Atmel AVR RISC Micro-controller
CDB8420
9
CIRRUS [ CIRRUS LOGIC ]
