Microchip Technology AVR128DA48 Curiosity Nano, User Manual

Page: 29 / 39

7. Appendix
7.1 Schematic
Figure 7-1. AVR128DA48 Curiosity Nano Schematic
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
D
D
C
C
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10/23/2019
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ly
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is
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Fil
e:
P
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N
umb
er
:
P
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De
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PB
Sh
ee
t T
itle
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et
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Engineer:
A
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A08-30
02
3
Size
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09-3280
3
Page: D
ate:
A
lt
iu
m
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om
G
ND
V
C
C
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ARGET
100n C201
G
ND
PA5_SPI0_MISO PA6_SPI0_SC
K
PA7_SPI0_SS PB
0_
U
A
R
T3_
TX
PB
1_
U
A
R
T3_RX
PB2 PB3 PB4 PB5 PC
0_
U
A
R
T1_
TX
PC
1_
U
A
R
T1_RX
PC2_I2C0_S
DA
PC 3_I 2C 0_S CL
PC 4
PC 5
PC 6_L ED 0_G PIO 1
PC 7_S W0_ GP IO 0
PD 0_A IN 0_W O0
PD 1_A IN 1_W O1
PD 2_A IN 2_W O2
PD 3_A IN 3
PD 4_A IN 4
PA 3
PA 1_U AR T0_ RX
UP DI
PF 5_U AR T2_ RX
PF 3
PF2 PF
1_
T
OSC2
PF
0_
T
OSC1
PE3 PE2 PE1 PE0 P
D5_AIN5
P
D6_AIN6
P
D7_AIN7
G
ND
V
C
C
_T
ARGET
100n C202
G
ND
V
C
C
_T
ARGET
100n C200
PF 1_T OS C2
PF 0_T OS C1
PA 2
PA 0_U AR T0_ TX
PF 4_U AR T2_ TX
PA 4_S PI0 _M OS I
G
ND
PA7_SPI0_SS PA6_SPI0_SC
K
PA5_SPI0_MISO PA4_SPI0_MOSI
PA
3
PA
2
PA
1_
U
A
R
T0_RX
PA
0_
U
A
R
T0_
TX
PB
0_
U
A
R
T3_
TX
PB
1_
U
A
R
T3_RX
PB2 PB3
PB4 PB5 P
D7_AIN7
P
D6_AIN6
PF
5_
U
A
R
T2_RX
PF
4_
U
A
R
T2_T
X
PF3 PF2
32
k
H
z
C
ry
st
al
1k
R20 3
U
SE
R
L
E
D
V
C
C
_T
AR
GET
PF 6_R ES ET
PC 7_S W0_ GP IO 0
PC 6_L ED 0_G PIO 1
GND
U
SE
R
B
U
T
T
O
N
PE3 PE2 PE1 PE0
PC
0_
U
A
R
T1_T
X
PC
1_
U
A
R
T1_RX
PC2_I2C0_
SDA
PC3_I2C0_
SCL
PC4 PC5
PC6_LED0_GPIO1 PC7_SW0_GPIO0
1k
R20 2
YE LL OW LE D
SM L-D 12Y 1W T86
2 1
D20 0
TS 604 VM 1-0 35C R
1 3
4 2
SW200
GND VCC_EDGE GND
GND GND
GND
UPDI P
F6_RESET
J207 J208
J209
B
LM18PG471S
N1
L200
A
VR128DA48
2.
2u
F
C205
VCC_EDGE
G
ND
D
B
G
0
C
D
C
_
U
A
R
T
TX RX
U
A
R
T
CD C_T X
CD C_R X
DB G2
D
B
G
1
D
B
G
3
D
B
G
2
DE
B
UG
G
E
R
C
O
NN
E
C
T
IO
NS
DB G1
DB G3
DB G0
V
O
F
F
I
D
_
S
Y
S
ID _S YS
VO FF
T
A
R
G
E
T
B
U
L
K
V
C
C
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A
RGET
R
E
SE
T
P
u
ll
VBUS
C
D
C
R
X
3
C
D
C
T
X
4
D
B
G
1
5
D
B
G
2
6
0
T
X
7
1
R
X
8
2
S
D
A
9
3
S
C
L
1
0
4
M
O
SI
1
1
5
M
IS
O
1
2
6
S
C
K
1
3
7
S
S
1
4
G
N
D
1
5
0
(T
X
)
1
6
1
(R
X)
1
7
2
1
8
3
1
9
0
2
0
G
N
D
2
4
D
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G
3
5
4
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0
5
3
G
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5
2
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C
5
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3
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2
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1
4
4
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4
3
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4
2
4
3
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4
3
4
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3
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A
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6
4
9
A
D
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5
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8
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4
4
7
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TARGET
ID
2
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FF
5
5
1
2
1
2
2
2
3
2
3
0
2
5
1
2
6
2
2
7
3
2
8
4
2
9
5
3
0
6
3
1
7
3
2
5
3
5
6
3
6
7
3
7
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6
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7
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R
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D
1
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5
6
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N
A
N
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6-
pin
e
dge
c
onn
ec
tor
J200
J201 J203 J205 J206
J202 J204
PF1 PF0
PF
1_
T
OSC2
PF
0_
T
OSC1
NC
J21 1
J21 0
XO UT
XIN
47k
R20 0
A
VR
128
DA48
U
PD
I
G
PI
O
1
G
PI
O
0
R
E
S
E
T
DBG
0
DBG
1
DBG
2
DBG
3
D
eb
ug
ge
r
C
D
C
T
X
C
D
C
R
X
U
A
R
T
1
R
X
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A
R
T
1
T
X
V
T
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1.
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-
5
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V
P
C
6
P
C
7
P
F
6
UP
DI
P
C
0
P
C
1
N
am
e
P
in
P
A
5
1
P
A
6
2
P
A
7
3
P
B
0
4
P
B
1
5
P
B
2
6
P
B
3
7
P
B
4
8
P
B
5
9
P
C
0
1
0
P
C
1
1
1
P
C
2
1
2
PC 3
13
VD D
14
GN D
15
PC 4
16
PC 5
17
PC 6
18
PC 7
19
PD 0
20
PD 1
21
PD 2
22
PD 3
23
PD 4
24
P
D
5
2
5
P
D
6
2
6
P
D
7
2
7
A
V
D
D
2
8
G
N
D
2
9
P
E
0
3
0
P
E
1
3
1
P
E
2
3
2
P
E
3
3
3
X
T
A
L
3
2
K
1
/
P
F
0
3
4
X
T
A
L
3
2
K
2
/
P
F
1
3
5
P
F
2
3
6
PF 3
37
PF 4
38
PF 5
39
PF 6
40
UP DI
41
VD D
42
GN D
43
EX TC LK /P A0
44
PA 1
45
PA 2
46
PA 3
47
PA 4
48
A
V
R1
28
DA
48
T
QF
P
U2
00
PC
0_
U
A
R
T1_T
X
PC
1_
U
A
R
T1_RX
PC6_LED0_GPIO1 PC7_SW0_GPIO0
A
VDD
PD
2_AIN2_WO2
PD
1_AIN1_WO1
PD
0_AIN0_WO0
PD
5_AIN5
PD
4_AIN4
PD
3_AIN3
XC200
12p C203
12p C204
32
.7
68
k
H
z
C
rys
ta
l d
at
ash
ee
t:
C
cr
ys
ta
l =
9
pF
m
ax
E
S
R
=
7
0k
O
hm
A
cc
ur
ac
y
±
20ppm
A
VR
12
8D
A4
8
da
ta
sh
ee
t:
C
xi
n
=
4
.1
pF
C
xo
ut
=
6
.0
pF
C
l ≈
1/
(
(1
/4
.1
pF
)+
(
1/
6.
0p
F
)
)
≈
2.
44
pF
M
ax
im
um
L
oa
d
=
1
2.
5p
F
M
ax
im
um
E
S
R
=
8
0k
O
hm
E
st
im
at
ed
C
pc
b
=
0
.5
pF
E
sti
m
ate
d l
oad
C
=
2
(
C
cr
ys
ta
l-
C
pa
ra
-
C
pc
b)
C
=
2
(
9p
F
-
2
.4
4p
F
-
0
.5
pF
)
C
=
1
2.
12
pF
S
el
ec
te
d
in
d
es
ig
n
af
te
r
ve
ri
fi
ca
ti
on
C
=
1
2p
F
/1
2p
F
N
O
T
E
o
n
U
A
R
T/CDC:
R
X
/T
X
o
n
th
e
he
ad
er
d
en
ot
es
th
e
in
pu
t/
ou
tp
ut
d
ir
ec
ti
on
o
f
th
e
si
gn
al
re
sp
ec
ti
ve
to
it
's
s
ou
rc
e.
C
D
C
T
X
is
o
ut
pu
t f
ro
m
th
e
D
E
B
U
G
G
E
R
.
C
D
C
R
X
is
in
pu
t t
o
th
e
D
E
B
U
G
G
E
R
.
T
X
is
o
ut
pu
t f
ro
m
th
e
T
A
R
G
E
T
d
ev
ic
e.
R
X
is
in
pu
t t
o
th
e
T
A
R
G
E
T
d
ev
ic
e.
N
O
T
E
o
n
I2
C
:
N
o
pu
ll
-u
ps
o
n
bo
ar
d.
P
ul
l-
up
s
sh
ou
ld
b
e
m
ou
nt
ed
c
lo
se
to
s
la
ve
d
ev
ic
e(
s)
.
AVR128DA48 Curiosity Nano
Appendix
©
2020 Microchip Technology Inc.
User Guide
DS50002971A-page 29